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Oe ‘Qre CONCHOLOGICAL CLUB
of SOUTHERN CALIFORNIA
Part 1. Pelecypoda
Riu 6 bo - Burch, Editor
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“ese vORTH AMRREC AN WARINE WOLLUSCs FROM aN DIEGO, CALIF, TO ALASKA
This List will follow the perigee’, of Welle Dall in his fumnary sa)
Species, Bulletin 112, United Stetes National Museum,
Species on which the members of the club have no ‘magational inform~
sation: will Pred be listed. uae
Ciena Bolcovooda
Family=
Olemyidae ( Solemyacidae) ;
Genus= Solemya Lamarck, 1618 (Solenimya ‘ Lamarck 1822, oe Lanaret 1830,
i Stephanopsus Scacchi 1853).
“Type= Solenye togata Poli)= wediterrancan oe
Subgenus- Acharax Dall 1908.
vr, Solemya | agassizii Dall howe © OFF Tillamook Biy;dregan, south to Agaia rai
Feru, in *
136-1800 fathoms".
; johnsoni Dall 1891- " ecg Sound to Penama"
scence Dall 1908
San Jose fetind, Gulf of Calif. ( H.N. Lowe ey 9 fathoms in coarse arkose
sand, off Pacific Grove, Calif. rare ( Gordon); Catalina Id., 100 fathoms (
( adult), 4 fathoms, mud ( juvenile) ( G. Willett); Malaga Cove, Leds Coe,Cale
15 fms. ( juvenile) and Point Loma ,San Diego Cos, 30 fms. ( ete) (Willett)
Solemya valvulus Carpenter 1864= " San
Fedro, Calif. to Gulf of Calif." and
off. Monterey, Calif.
Off Monterey, Calif, in 10#25 fms.
sand, rare ( A. Smith); off Newport Bay,
Sealife ( H.N. Lowe); Scammon's Lagoon, —
Lower Calif. ( meeeh b) <
Yamily= Sudatidae
Genus=- Nucula Lamarck 1799
Type Arca nucleus Linnaeus- Europe |
Subgenus Nucula sis ,
Nucula exigua owerby: aa Golden Gate to leaoitees Mexico"» Hertlein and Strong
give the range " San Bartolome Bay ( Turtle Bay), Lower Calif., and Gulf of
California to Ecuador (7) Magellanic region ( Dall)."
Dredged in 20 fathoms off Malaga Cove, LeA. Cos, Calif. 11/1937 and’ map
abundant in the Baldwin Hills Pleistocene Playa del Rey deposit ( Burch);
in 18 ftms. off South Coronado Island ( Dr. Fred Baker); Malaga Cove in 10=15
fmse ( Ge Willett); Scammons Lagoon, L.C. ( Hemphill); Santa Maria Bay, L.C.
H.N. Lowe 1931); Pleistocene from Lido Isle,Newport Bay, Anomia Bed, Vermont
& Sepulveda, Gaffey St. ness San Pedro, Lumber Yard, San Pedro, & Nigger
Slough ( Miss E. Cook).
Subgenus Ennucula. Iredale 1931
Nucula cardara Dall 1916- " Monterey, Calif. to Lower Calif. in deep water."
In 13-196 fms. in soft green or dark mud (U.S.F.C.) Stas. 4475,4482,4483,4523"
Nucula tle_carlottensis Dall 1897= " Queen Charlotte Islands to Anacapa ielend e
681 fms. in green mud and sand ( U. ee Sta. 3670,rare.
“Tillamook, Oregon ( HN. Lowe) ; SY. fms + in sof der
Nucula quirica Dall 1916~ " Chugachik Bay , Cooks Inlet, Alaska"
~ Adams fide Schenck, 1939, p Sle
Lower Calif,”
harbor at San Pedro about 1910 ( Tremper) (Strong); Craig,Alaska, |
Willett); San Juan Id., Puget Sound ( H.N. Lowe); Departure. Bay,
Nucula tenuis expansa Reeve, 1855= " Arctic Ocean, to Sitka »Alaska; San Diego
of Alaska. The name " expansa"” is both a synonym and a homonyme” «_
Akutan Island, ‘dredged 10 ftms. 1934 ( Norberg); ae Bay, Afomnale Aaay | 7
dredged in md, 1922 ( W.J. Eyerdam) h ia
abundant in the Pleistocene of Timm's Pt,,San Pedro,Calif. ( Burch
Nucula develia Dall 1916= ae ort ‘Ban J
Nucula Tink i , Dall ‘l9l6- mM tion Char ot
exico s , '
‘Dredged. off Redondo Beach, calif. in 15 fathoms, mud bo" 8
grey mud ( US.
4464,
Nucula petriola Dall 1916~ ( See cyrilia Be ‘Adene © Pihase ‘eens Nuculanide
We have a note from Dre Myre Keen that this nears equals Nueul:
ere ee
bees
Nucula tenuis Mentiee 180k Hertlein & Strong cies range ” Northern Europe,
Wortheastern North America, Circumboreal. Point Barrow, Alaska ‘to ‘Cparae Ids
‘Dredged in 25 ftms. off Avalon, Gatelina Ta. ,8/1987, in 40 fine “off Hore.
_ eterey,Calif. 8/1937=40, in 40 fms. off Rocky Pt.,leA. Co. 7/1938, in 25 fms.
50 to 100 fms. off Redondo Beach, Calif. 1937-41; in 50 fms. off Ensenada ,Mex —
7/1938- always from mud bottoms ( Burch). Many specimens dredged in the inner
L5=30 fms . a i
San Pedro, 20 fms., Catalina Id., Newport, Point Loma, Calif. in Mite. A Gees aay
ritish Col .,
( Mrs. Oldroyd); in 15-149 fms. in mud,sand and clay, common off Monterey, — ite
Calif. ( Ae Smith); Akutan Id. dreged 15 fms« mud, 1934 ( Norberg); n
“brook I., Pr. Wm. Snd.,Alaska, 15 fms. 1936 ( Norberg); Tromso, Norway, dreds aot:
in 1930 ( Norberg); Knight Isldnd, Drier Bay,Alaska, 1923 ( Wid. Byerdem)s
We Rave a note From Dr« Myra Keen that this species equals Nucula bellottii —
A. Adams fide Schenck ,1939. Doubtful if the true N. bellottiii occurs. Cais ee
Punuk Island, Bering Sea, 15 ftms. ( Lewis) ( Willett); arctic (— Helle Lowe
Subgenus Nuewlopsis: Woodring 1925. Hertlein and shincive: deceit species. ‘dneer LM
this subgenus, but insofar as we know now it is not known north bet Ben Dhegae, ae i
Genus Acila H. & A. Adams, 1858»
Type~ Nucula divaricata Hinds = China Sea tag
Subgenus Truneacila Séhenck in Grant & Gale 1931. Soy
Acila cast trensis Hinds 1843~ Hertlein and ‘Strong give the range. ® ata, er) is
Alaska, to Cedros Island, Lower Calif., 40 to 262 fathoms" fe
Dredged in such abundance as to make it the predominant moi’ aa wae
off Redondo Beach from 50 to 75 fms 6 1937-41; 50 fms. off wrateans © 7/1938;
3°20 fms.
mud Friday Harbor, Wash. 5/1936 ( W.J. Byerdam); off Upright Head, San Juan
Islands, Wash. on shell bottom ( Ruth Coats); Craig, Alaska, 15=40° ‘fmis.3 :
Forrester Id., Alaska, 50 fmse; San Pedro,Calif. 15-20 fmse ( Ge Willett). Gan ey yas
Es tock). from ord & Mesa, 8th & Palisades, Timm! 8 ee & Walteria ¢ Miss ay. ee
Ee Cooke) Ue Cee io i ia
The (eliowine works should be con= —
“sulted on these diibe giay a
Hertlein & Strong"Mollusks from the
West Coast of Mexico & Centeal Amer- __
~ica” Part I, Zoologioa,VoleXXV. ~~
fuculid Bivalves of the Genus Acila”
by H.G. Schenck, Geol. Soc. of icin
sc Agat Wan he Noe -4, 1956.
‘Nucula
ioe
Beet Thiel
[Emad rete \
sai) ¢ ok
‘ Tey a
Paice) in green, blue and soft. gray mud, and hare sand, ss
Lave F. Ce Stas. 3128, 4516, 4517, 4530 14536-9) common.
Goneaptionis Dall= Aleutian Islands to San Diegs, Calif.
thoms in yellaw sand and mud, off Paint Sur,Calif. ( U.S.F. of bea.
aeunae omens in Burch collection taken off San Diego hy Fred
eo Willett places the fpliprine’ in the synanomy of this species: |
ta Dall and N. f. vaginata Dall. They are here listed as in Dall.
ak Islend, Alaska 15 fms. ( Lewis); Wrangel and Craig,Alaska,30<00 fms.
ae es ces Drier Bay, dredged in 1923 ( W.J. Baie Boulder
wet A Rll
‘OB5a Paeeciccs Dail, 1916- cay pote age Sea and Unalaska.
1a. pernule Muller,1779~ Arctic Ocean to Plover Bay. Alsq Atlantic.
berge aa 45"== 20'E. of Hinlopen, 55 fms. clay,1861; W. coast of
lmarn, Bohuslan, 1897 ( A; d' Ailly); Tromso,Norway, 8-10 fms.
Norberg); Knight Id.,Drier Bay, dredged 1923 ( W.J. Byerdam);
le, dredged 1931 ( Norberg).
‘Saccella Woodring ,1925= Type Aroa fragilis Chemnitz. ;
(Saccella) acuta Conrad 1851- “Type | ocality~ North Carolina. |
Range: Off Martha's Vineyard to the West Indies.
16 following ngte on this species is the gpininn of John Q. Burche
With but few exceptions all west coast collections contain sets of a
.l species of Nuculana found cofmon in comparatively shallew water off the
t of Southern California and have it erreneously labelled N. acuta. Many
s have sets of the true Atlantic N. acuta in our cabinets y with the west.
coast specimens for comparative purposes. 1t is obvious to any amateur that
two shells could not possibly be considered to be the same species. This
is’ always: noted and commented upon whenever these specimens are examined,
for some reason no one has seen fit to describe it and give it a name. It.
hoped. that ne Le below will show the differences Pe eieen the two
species. i
Grant and Bele: ( Mem. San Diegn Soce {Yous 1, 1981) suggest that the species
be Ne penderi Dall and Bartsch 1910, ".N. aouta differs from N. penderi
its smaller — size and its less dorsally curved rostrum. Dall and Bartsch,
in their descriptign of Ne penderi state that the latter is less elongate than
acuta, a relationship which is true of the Atlantic acuta, but pee not hold
r the shorter, less typical Pacific coast representatives of Conrad's species."
Ne penderi has been well figured. Two very good figures are in Oldroyd,
Stanford Univ. Publ. Geol. Vol. 1, Pl. 39, figs. 4,5+
F George Willett suggests that this shell be labelled Ne penderi_subspe
It is the opinion of the writer that this southern California species is
i tinct from N. penderi which is shorter and more globose.
It has been our custom when labelling shells that seem to us undescribed
a are abundant off Redondo Beach, to name them after the locality. So until
s species is given a better name, it waht be Nuculana redondoensis in our
8/1937, 40 : Len eee
{ Ge Que Ree iy Paeane
‘
“Redondo Beach,Calif. 25 fms. ‘Lantana, Fla. 100 fins. s
Note a ie in shape of shell and. center of” hinges
bee aech sent the following comment with the drawings, " Just, ea
_ drawings- I believe the two figures .of Ne acuta ‘show the differenc
I drew them first with a camera lucida and then reduced them with
dividers. They are all the same magnification ( 9x). I did not ahs
teeth accurately drawn, but the central area is as shown." anh RES
Nuculana austini ( Oldrayd) 1935- West coast of Vancouver Id., Nootka Li;
CWautilus V, 49, p 13). This oui is generally Eines on the synonom
ON. minuta Fabricius 17766 . ‘ ome ants ah
bo Nuculana cellulita Dall 1896~ ‘Puede Sound — EA ene Nie
Craig,Alaska,50-40 fms. sandy mud ( George Willett); Eiri geen Tag,
_ Wm. Sound, dredged 1925 ( Weds Byerdsm) dredged off party Harbor Wi '
htt Rincetd). 9... Bc en
- Nuculana " cuneata Sowerby"= Mombaper ( Cooper). Notes by Allyn Sm
is not Ne cuneata Sowerby which is a synonym of Ne elenensis Sow rb
eaiiecters applied the name to the species which Dall called Ne a
-Nuculana oxia Dall 1916= Santa eae Island, Cellts ta. Gulf on
i
PaaS Canaries acl.
ght Id : Bay, aredged, mad, 2024 ( Wed Ryerden);
Bay 1940. (Wed. Byerdam). | ie
maensis Dall, 1919- San Diego, Calif.
ft Redondo Beach, Calif. 1937 —41, 50 fms. ( Burch).
ka, 30-40 fmse 5 sandy mud ( G. Willett).
ria Dall, 1897~° Bodego Bay, Calif. to Lower Californie.
d off Santa Monica,Calif. in 10 fms. sand 12/1935, off Monterey,
n 10 fms. shale 8/1937, and exceptionally large specimens off Pacific -
‘15 fms. sand, off: Redondo Beach and San Pedro,Calif. in 15-25 fms «
: “Ensenada, lox. in 15 fms. 7/1938, fossil in. Pleistocene of Timn's _
Hilltop pierre ae oat Calif. and very abundant in the Baldwin Hills
p at y ( Burch}; dredged in 7-10 fms. off South Coronado Id
a4 | Many specimens dredged in 6 fms. near Deadman's Island, ~
ke in 1912 ( Tremper); in 3 fms. along the inside of the Government
at San. Pedro ( Strong); specimens were taken from lumps of clay .
‘by the dredges in the outer harbor, San Pedro ( Chace). 8-51 fms.
‘he fine sand, abundant. Common in fish stomachs off Monterey.(Sore sen)
leda Iredale, 1929= ‘Type- Leda ramsayi E.A. Smith cub.
ucula sate Carpenter 1864~ Puget Sound to Panama Bay
pee Di dged in abundance off Redondo Beach in 25,50,75 and 100 fms. mud bottom,
. , off Rocky Pt., in 35 fms. off Avalon,Catalina Ide, 8/1937-41, Sn
f Monterey,Calif, 8/1937, abundant in the Pleistocene of Timm's Pts!
Pe O,Calif. ( Burch). 35-158 fms» in mud and sand, fairly ¢ common off —
ey (A. Smith). |
mate, limata Dall,1916=. Santa Barbara to 5an Diego,Calif,
eonina Dall, 1916 - Straits of Fuca to latitude 36 northe
rn. in ee mud, Aes and rocks, off Point Pinos ( UsSF.Ce
A ari
ee in * beyiueiee, from the West Coast of ‘Mexico and Central
tI, Zoologica, Dece 51,1940, describe sal new subgenera and use
a Hortletn and SEYOUBs.. 1940= Tyge - | Nucula polita Sowerby |
iy 1908— rpeetede phieat Dall
Bellarai, 18F5- Hee Leda concava ronn, |
Ses qatit Grants, 1885=< Unalaske, Aleutian Islands. Note by Dr. A. Myra
me Probably a Yoldia" °°
Tana “flascona Dall, 1916< ort San Mepoectis.. in 822 fathoms.
3 eoreen gomphoidea. Dall, 1897~ Off Tillamook,Oregon, 786 fathoms «
ulana liogona Dall,1916= Bering Sea in 1,401 fathoms, ~~
ana navissa Dall, 1916= Farallones Islands to San Diego,Calif.
ana phenaxia Dall,1916= Off San Diego,Calif. in 822 fathoms,
ana . goes Dall, 1869-santa Barbara | Idee Calif, to pekamena icc
Genus einen do dear Adams,
ST
A number of species of
and Central America, but. none he:
Genus Yoldia Moller, 1e42- Y Pertianaie’ 2 Moreh,
Type- Nucula arctica Gray Circumboreal eerie i ao am (eC aH ay
Pallial sinus deeper than in Nuculana; shell thinner, gaping at bot
ends; usually with strong keel on posterior dorsal margin,
Subgenus © Yoldia SeSe Flattened; elongated; no sis ie except increme
lines.
Yoldia myalis Couthouyl, 1838= Arctic Ocean to Boece oat: 1 tore gem
Punuk Id.’ and Nunivak Id., Bering Sea ( Lewis); Kodiak Id. Alask :
Craig,Alaska, 20-40 fms. ( G. Willett); Sucia Id., Puget Sound, 25 fmse
‘Oldroyd); Akutan Id., dredged 10 fms. mad, 1934 ( Norberg); Hinchinbroo
dredged 1936 ( Norberg); Knight Id., Drier Bay, 25 fms, mud,1923 ( We:
Unalaska Id., under stones on rocky reef at low tide, 1932 ( Wede Eyerdam
Yoldia limatula Say, 1831< Arctic Ocean to San Tie eo: a ee
“Kodiak Ide, 15 fms. ( Lewis); Wrangell, Alaska, 50 fms. < ce Wille
Puget Sound ( U. of W.); Elrington Id.,Pr. Wm. Sound, aree eee 1924 i
Sorfjord,Norway, 1935 ( Norberg);
Yoldia gardneri Oldroyd, 1935 = Gardner Bay, Pender Harbor. in 4 fms
Ve49,No.1 ,pel4). Some students suggest that this is the west.coast
ine of Yoldia limatula Saye Others place it in the synonomy of limati
Mre George Wil Tiett collected a topotype which he says is narrower anc
-attenuated posteriorly than Y. limatula. He labels the Bettas Rey 4
Yoldia limatula gardneri Oldroyd, 1935,
Subgenus Cnesterium Dall, 1898= Like Yoldia SeSes but with concentric
not coincident with incremental lines.
Yoldia scissurata Dall,1897= Syne Yes ensifera Dall, 1897; ba ensifera plen
Dall,1908. Arctic Gecen to San Diego, Calif. yay
It seems to be generally believed by students that Yel ackaene eat
ensifera are the same species, There has been some confusion as to whic
the older name. They were —- described in the same ‘Publication and §
has page priority.
Yoldia, SeSe Yoldia ( Yoldielia), we
Punuk Id. and Nunivak Id., Bering ga 8-12 fhe ( tsetse Cra:
60 fms., Newport,Calif. 30 fms. ( G, Willett); Puget Sound ( U. of W.)
Ide, dredged 12 fms. mud, 1934 ( Norberg); Una’aska Ide, dredged 20 fmse
( W.J. Eyerdam)$; Hinchinbrook Ide, Pr. Wm. Sound, dredged 1936( No:
Izhut Bay, Afognak Ide, dredged, mud, 1922 ( Wede Eyerdam); San
Sound, 25 fms. (Mrs. Oldroyd); 8-51 fms. in coarse and fine sand, ah
Monterey ( A. Smith); common in fish stomachs at Pacific Grove ( So. nser
dredged in great abundance off Redondo Beach, Calif. in 50-75 fms. mud, —
uncommon in the Pleistocene of Timm's Pte, San Pedro,Calif. ( Burch.) ”
Yoldia sominuda Dall, 1871- Bering Sea to ar Alaskas 4
a iTaCs, Woxe tn'26 Subs 7/4/38, heveneat Sdn Lite sep.
ane in send off Reguehsae ts (" te Sith); nee
cimens have Peeat cue up by etormé ‘at various bine RA
front ( ‘Tremper) ( Strong); La Jolla, Calif. ( HN. Loweng
dia Verrill and Bush, 1897- Shell swollen, blunt ended.
ormis Storer, 1838, Arctic Ocean to Oregon; also Atlantic.
ee 50 fms» at Ge a uet UL Sucia acre Sound, 35 ay
ji “Heng 50 fms. a ee eran | apr
Dall, 1916= Boring Sea to Anacapa Tag calif. rad
fi
reyensis Pall, 1893— Chirikoff fal, Alaska to oy Seeay
thoms, in mud and sand ( U.S.FsC. Stas. 3128 ,3202,3670,4509,
»4538,4540,4541,4542 ) common. Off Monterey, Calif. (As Smith)
e)3 off Monterey, 25 fms. ( Mrs. Oldroyd).
all, 1897= Prince of Wales Ide, Alaska to Gulf of Calizs
, Wasi. ( Oldroyd).
Smith, 1880= Vancouver Id. ( Smith) > beast
rrill and Bush,1897. Very small; polished. Deep waters
B55e Norton Sound,Alaska; | also Atiantic»
it HN. Lowe). 5
» 1865~ Bering Strait. & Norton Sound, “Aleska.Cireunboreal.
T,1916. Oregon to San Diego.
11, 1916. Southeastern Alaska to Pt. Conception, Calif.
“Dall, 1916. Off Tillamook Bay, Oregon, in 786 fms.
lla Dall,1916, Aleutian Islands to Gulf of Californias |
9 shores tooths
Carpenter in Dall 1898~_ a Pleurodon irate Carpe) Dall,
Carpe, Nucinella munita ( Carp, in Dall) Keen, Nucula petriola )
- ina Island, Calif. to habe 34.8. Off Catalina ats 30 fmse (Willett).
- Tindaria
de Adams. ( Euan netned ts) Type» saga lant sulcata A. ent, oy
n the beach at Ocean Beach, San Diego Co. ( Miss V. Bristol); oo
» Stas. 3128, ,4509,4536) 6 Oe AN he at
ey, dredged, 1923 ( W.J, Byerdam)s off Monterey, Calif. Cou
Taian eee
ee as know hace encecneen have wee ay and
_ Genus Mindaria Bellardi ,1875. Type~ Tindaria arata B
ee | Shell aes globose, betas tae beaks swolle
ee Meee ts ramen Dall, 1916. Bering Sea to ‘H1tendok, Oregons .
ys ~_U.S.F.0. Sta. 3604, Bering ii lat. Ne cut 51", ae °
‘ 1401 fms. ( H.N. Lowe’ Colle) ay Ne
eh fa neers. californica fares 1e6. Santa Barbara to San
; “755-958 ethcas, in sort oe as off Bone Pinca’ a
ip eee wonnertyi Dall, beast oft Wii Alaska, ta Senta a
1h Phe waters nt
eae ter st: ,
Tindaria mexicana Dall, 1908. San Diego, calif to Ace
7 Uneapep mprpsrauemen 0 SeEcact ener mea
| waters
oi Hinineta rivtert 2 Dall, 1916, ore Ia dolla, California qi 285 : thon |
er a Bs
“group | is cuncertain,
any : :
Malletia —
us
8 Lamarek, je
; ‘recent reports ons
e8 of aigeybebns" by Ge weld cues Bulletin of the
ornia a ve of Sciences, Vol. XLII, Sept.-Dec.,1943,Part: 3.
om the West Coast of Mexicoand Central America, Part rr" by
trong, Zoologica, Vol, XXVIII ( Part 3), Dec. 6, 1943.
ne of the lees Hd Tryon! s. ch Conchs " Shell ane ie!
ge a ee paper necbeeed | ine aees , maken ‘¢he following slebemente
7 a saushern shia from mies dS eed deep water Bight ae air anes in
10 cotton are pe specimens from 40 fms. off San Clemente, and 25 -
ib COLL: South Coronado Island. As previously stated, the record for
rom Forrester Island, Alaska, resulted from misidentification.
a oeestoed should be carefully cheoked."
ong probabt ity of misidentification.
eenac Willett, 1943. Type locality and only record is Porrester
aska. ( Bull. S54. Calif, Acad.|Sci.e , Vol. 42, Pt. 3, 1943).
migueliana Dall, 1916. Dall in Bulletin 112 reports the range of
Spe es as from Oregon to Magdalena Bay, Lower Calif. and the Cortez
| pak, | Te 4 was a reported from Forrester Island, Alaska, but Mr« G. Willett —
| shows ‘that this was due to a onan heh aethred hee Inasmuch as al] members of
¢ Gl Glycynerts profinda Dall, 1879. ort Catalina ‘stand nea Redondo Beach, Cali °
“Pre <M, Vole 1, 1879, pp 13-14). Figured in G. Willett's paper.
Lx valves f from off Catalina Island in 200 fms» ( Ge Willett); one
Glycymeris Pes ee Dall ?
Off Redondo Beach, 25 fmse, acs:
Island, Alaska. Mr. Willett shows this to be an error and makes the ¢
" Specimens labelled septentrionalis | in west coast collections are aie:
_ certainly misidentified.
Therefore, for the above reasons we are » omitting the numerous co
records of the members until they have had an opportunity to check the!
specimens with the latest information. Hertlein and Strong suggest that his
_ species should be placed in the synonomy of G, multicostata,
Glycymeris subobsoleta Carpenter, 1864, Aleutian | fslends ‘to Lower Calif. i”
fate is the commonest species of the genus along our coast. " It is the
flattest and thinnest of our Glycymeris.” It is probable that many specimens
identified as one of the above species are subobsoleta. ea Paes
Mr. Ge Willett in his recent report cited above gives an | interesting a :
account of the apparent change in this species pipe one end of the range — Rata
and the other. Mr. Willett states: wae \ large series of "specimens: dn. the Calit hs
es 0 Ay aoa
averaging very slightly rounder than Slee ashore?
however, a morphological change in the species begins to be noteds Me
produced,and ‘with the apical ‘angle about a right angle.® Mr. Willett ais By at
that pooner or later this aeenciads species may be ie a ‘to, rate. a subspecific Sige
names I Gia
- This Ae ene, ‘oommon 1 dlyeqnarte taken off Bedard! Fausn) ae eter
25 fms. on sand bottom and frequently washed in to the beaches in
-bers following blows. Also dredged off Pacific Grove, Calif. s/t nr, RE
in local Pleistocene deposits ( Burch); Agate Pass, Kitsap Co., Wen andra ie i
Friday Harbor, San Juan Islands, 1920 ( Weds Eyerdam). y oe y
Bubgenus Tuceta Bolten,:1798. Type Te eo bindilintes Arca. | cetmneuiale ome Mert
Strongly ribbed with an arcuate hinge. For the strongly ribbed species » =
Glycymeris multicostata Sowerby, 1832. Dall in Bulletin 112 gives: the i
ae this speties as . () Monterey Calif. to Gulf of Calif.” bs haji: mh oa an
range “ Punta PunaBaoL Beats. Mexico ’0. Guaygutl,Boundore® The eye Vooality
is Quayquil, Ecuador in a8 fmse | ae ae | ae
Subgenus Axinactis Morbh, 1861. Hertlein and Seno use this ‘eubgenus for: : fe Bicone
several southern eihaenis but it has not been recorded north of Sen Neti: | ae A
Family LIMOPSIDAB | | LON ae
" Shell small or medium sized, scheesh iy cuanaean and somewhat » oblsiisey Malia ci hea
“ately solid, with a tufted periostracum, Umbones subcentral, slightly elevated, aa
separated by a narrow rhomboidal: ligamental area, in which the short ‘ligament pete
lies in a central, triangular pite Sculpture consisting usually of more or
less conspicupus radial striae. Hinge line curved, with a series of more or
less oblique teeth. Posterior msele sear larger than. antert or ccna Dally
Bartsch, Rehder).e - Ba
Limopsis —
typy) + ten
} "12 mpegs seat Ae
to Coronado Island" Dall
9. e ea, 30 fms." Dall
Dall, 1908, é SRNR ; ri
Loe 1891._ Bering | Sea ond’ Aleutian Telends." Dalis, ies
> fol) ring works should be examined for the more bie i cis reports on bs ue
en Strong " “uaiueks from the West Coast of eaten: and Deri. Aner pe
rt II", Zoologioa, Vol. XXVIII ( Part 3), Dec. 6, 1943, aan
-" Glassification of the Peleeypod Family Arcidae" '» Bul. Mus.
‘Belgique, Tome 11, No. 13, 1935, 68 pp, pls. l=5.
." Mesozoic and Cenozoic Arcidae from the Pacific Slope of Worth |
© me Uslotiee of Barbatia ( Acar) Gentes - Brod. ' Sby.)y fee Cer ea
ego Soc. Nate Hist. Vol. IX, Now 105 pp 39446, 1939, Nee COE EE ni
"an Overlooked Arca from Southern ‘alite", cc opt veA6y P aTe th NR
‘ Proce U.S. NeM. ru Arte 9, -P 2. Paths
ee Type ie by subsequent costes | Schumacher, inn,
8 ee eh 1665. Buuatitet yas Arca Limo ony Von Koenen,
cea esd gation’ of Reinhart, (1935) "Reinhart gives Arcopsis ,
By aelide: Broderip and Sawer by, | 1833. Dr. Dall in Bulletin 112 oe
cies under the subgenus Barbatia Gray, 1847, ‘and geve the rang ‘
to Panama" - The San Diego record has been questioned because ,
that this record was based upon one single dead valve taken
st off San Diego. However, 4+ Myra Keen in" An Abridged
i 1d ‘Bibliography of West Ainerican Marine Mollusca", 1937, p 18,
@ northern limit of the range as 34 degrees N. latitude which would
up to ‘Santa | Monica Bay. Hertlein | and Strong give the range " Asune=
“Lower Calif. and the Gulf of Calif. to Paita, Peru, and the |
", The California record of this species is subject to some qhestion
records: may all be due to a confusion with other species, One
of error in which this species was misidentified is described by A.M.
in the | i Recent Marine Bivalve Molluscs of Los Angeles and Orange >
Calif." as Atalay A small Arca has been found in aig numbers —
the | hells die ang from 2 to 4 inches of clean band and fine gra
Small rocks were found which were covered withthe shells. They were
ified by Dre Dall as a dwarfed form of As solida wisahaigins at the ee
inikoh has been identified a5 she young of As reticulata Gnelin! hae which
jall states are young males of A. solida. " We now know that the species
d to is ‘Aroa ( Acar) pernoides Carpenter. However, these two should
ly distinguished because of the raised muscle scar in Acar, which does
sur in other subgenera. Reinhart suggests that this species has at times
fused with Ae gradata and Ni she tersely states the Latah iaeidalaasat pee
fo. as followst
" Ae sordda;: Greer may be
a small tri angular area under the bea
cardinal area detoid ef ligament. On
occupies most of the cardinal area.”
Subgenus Acar Gray, 1847, “type: Aros gtvariokte | i Wivereye 1833 we iy ul
Stoliczka, 1671). The distinguishing feature jer this subgenus is that the m
Scars are elevated. Dall,Bartseh, Rehder in" Marine Molluscs of Hawai
other current authors use Acar as a genus -under > the family Arcidae.
raises Barbatia ( subgenus of Arca with most authors) to generic ‘stan
Places Acar as a subgenus of Barbatia. Hertlein and Strong and many ot
consider Acar a subgenus of the genus Arca ain: we are home) ‘them for ti
present. sad
Area ( Acar) reticulata Gmelin, 1792. Range: Atlantic- North Carolina to
Indies and Texas. While Dr. Dall in Bulletin 112 listed this species cur
from San Diego to Ecuador, there seems to be little question but. Shee
coast identifications of this species have been in errore aan
Arca ( Acar) pernoides Carpenter, ‘1857.. Arca bailyi Bartsch, 1931. _
Reinhart gives the range as — Topanga Beach ( near vanta Ny
Island, Gulf of California Cs HN. Lowe Coll.). Gey
“es nlveu above all deal with this- Meuceon, stron. Reinhart atc. ‘We ne
thought the matter settled when A.M. Strong in 1932 (. Nautilus) state y
pernoides iS the same species as A. bailyi Bartsch, and Reinhart conor ;
this epinion in his paper, 1939,( Trans. San Diego Soc.s). Honares a
his more recent work ( Geol. Soce Amer. #47) abandons the name pe
returns to bailyi. Reinhart's reasoning is quoted here: §: pai
corcluded that Ents species was identical with " Byssoarca"
described from San Diego and believed from its descrip
conelusion, which was until recently concurred in by me C Reinh
to u6e6 However, Dr. S.S. Berry has nutates out (personal. pike
an obvieus discrepancy in this conclusions Carpenter' 8 origin des
B. pernoides ( 1057) gives its length as .68 " pollex", indioa
apecies than the southern Salifornia Agary which is always small,
-ing 9 mm. in length. It is therefore ‘Probable that the name apeece pernoide:
refers to some other species, and that Barbatia baily! is “the carats nam
the southern Galifornia species."
| Collecting data; Palos Verdes Estates 9/1936 under rocks as ow tide
Chama beds in Newport Bay, Calif. 10/1935, from under: stones at low tide
Onofre, Calif. rubble reef and very abundant. Could ‘sweep them off wit
11/1930, same habitat from El Morro Pt. north of Ensenada, Mexe o/s
Laguna Beach, and La Jolla, Calif. ( Willett); “ Recorded as Be gr
from 12 fms. in sand off Monterey, by Berry, who now states that. re
extremely doubtful" ( A. Smith); Mr. E.P. Chace reported taking ‘the 6
Monterey, Calif, 2 but again Mr. Chace is doubtful et his Tener de’
“Area ( ar “perokdes Carpenter
iy San Onofre, Aeatia!
fcr: Ne WEES BN tice ty AEN aD
WANG Is OP
/ Mg PA
: nal area. It s elon gate-quadrangular in outline,
inded , and usually has only @ narrow byssal gape." Grant
) reeveana a “Orbigny, 1846. Arca. helblingii Bruguiere"Reeve
nhart | "Southern California( Keen, T9327, Pe 8) to Peru and heal,
( Grant ond Gale, 1931, pe 143).
bing data: Note. from A, Myra Keen " We have a fresh looking eebes t
a student picked up ‘at Santa Monica Beach. Has any one
southern California 2?" ; 5 Note Mee pe ay hag v Rec. Mere
we. ave ‘some dgpepence. of Bree about this. group. Reinhart, the
name, establishes Anadara. Gray, 1847 ( subgenus of Arca with |
hay full generic value ( in fact uses a subfamily dnadarinae)
a8 a Tg gil of Anadara. However, Hertlein and SHEOne
euder ” ‘to the nines live oe "anaderas Central teeth an '
yes a lity: ‘Gulf of TaRnaa eepees Mexico in 12 fms. ;
Bay long sandy bank of the slough, 1934 ( Burch) ;
to have been taken in a dredge by a fisherman
ow Laguna( Strong). ae
Genotypes ‘Arca poctunculotdes Scacchi, 1635 or
ity: Bay of r Of Panamae me Tin Oe
San Diego to Panama" ae ‘
o Sante Barbara, Calif. to the eens eM at
Type ‘locality: Not designated. ae
“aepth ‘of about 2000 fathons ( Reinhart). Vas wie 2 hy
TT ty pubs design, Gray, 1847), | fan’ ni gra. a Cheme “
e specimens of the Genus Pinna jieaeee: 1758 from
n has ever been reported north of San Diego. anit
ayer ‘into. two partae ts- The genus Atrina does not
: ‘Type Micaliey: isan, Pedro, Calif, in 25 fathoms.
ae and cnet Bay, Lower Calif. Me Hertlein
“The gabelaon mentioned fa the collestion
the Burch pereections: ar
est PTERIIDAE
-" Shell oblique, Aytetota? nages® snaquivalve, | paul wlth, one adductor scar;
ligament alivincular; byssys present; young with hinge teeth, Cerne sbscure
saan "It is somewhat intermediate between the dimyarians and t
warians, the. young ‘possessing two adductor muscles, the anter’
small or absent in the adult." Grant and Galew > ( a
Genus Pteria Scopoli, 1777. Type: Mytilus hirundo Linnaeus vy nonotypy eh om
the Mediterranean. ( Avicula Es aie’ rae | SRN
"Shell oblique, inequivalve, eared, byssal noteh hee baie wage aueaaen ear
of right valve; cardinal area linear, with obscure or: ‘obsolete teeth; dorsal
margin long, straight; scylpture not prominent; shell fragile." Grant & Gale.
Pteria sterna Gould, 1851. " Hueneme Point, California to the Gulf of Calif.,
_ and south to Paita, Peru" ( Hertlein and BGrone) « ‘Type locality: Mazatlan Mexico
Many of us have this species labelled Pteria peruviana Reeve, 1857~= Avioule
peruviana Reeve, but Hertleina nd Syrong and others have shown: mee specie
identical with P. stera.
An interesti ng thing to consider about thie species: is. ‘brought out b
Hanna in his paper " Exotic Mollusca in California" ( Bull. Depte Agric.
"Dr. Fred Baker has advised ( verbal communication) that the presence 0.
species in San Diego waters is due almost certainly to its having been ¢
there on the bottoms of ships and bargese Dall ( Bull. liz, : Cia a ae
Sprague of Santa Ana took over 50 large ha erik a float hae was
ashore in Newport Bay in March, 1941; old marine ways, Ban Diego. ¢ F.W. et
Pteria viridozona Dall, 1916, Long Beach, Calif. ( Lowe). " Specimens in the i
Gollach collection taken from the baoke of deep sea crabs” off San Pedro are
believed to belong to this species.( Chace) ( Strong). However, this is a
questionable species with no member of the aia! sure na Nay haha Ase
na _ Brug
Eyes
3 species with Co
Family PHTLOBRYIDAE el ee
Genus Philobrya Carpenter, 1872. ue Bryophile . Serpent e
~typy) Bryophila setosa Carpentere = . as
® Shell like that of a minute Pinna with notated wedices ‘upper may
with a strong internal ligament, anteriorly somewhat indented by
sinus, ventrally and posteriorly ropnded sie pings ciel acn a aed
subcentral, indistinct.” ( Tryon)» :
_ Philobrya’ setosa Carpenter, 1864, " Porreeias Island, Alaska to ole of c
\
ype loca ity: Cape San Lucas, Lower Californias oa ae
Collecting data: Dredged 7 fathoms off Santa Monten, Calif. 12/1935, ié
40 fathoms off Monterey, Calif. 8/1937, taken in abundance at low tide on th
bay side of the San Pedro breakwater in holdfasts of corraline algae, 1937 Bure]
San Pedro, Calif. ( Lowe Collis); San Clemente Island (: Hemphill); Coronado ‘Ids.
( Stephens); Guadalupe Island ( Huey); 5-25 fathoms, on sea mosses and peipore
algae, off Pacific Grove, Calif., Comnon ( a. Smith); Forrester Id.,
-Cayucos,San Pedro and Santa Cruz Island, Calif. ( Ge WAllett); " This
species is not at all uncommon at “hite's Point, Point Firmin, and Ri
Calif. ( Chace); " Found quite plcntifully on the moss on the backs |
_ at Isthmus Cove, Catalina island. ( unite) ( Strong)s ° ws
Family DILYIDAR ee one |
Genus Dimya Rouault, 1848. | {type Di Amy acehegetens Rout: " by ‘mor
" Shell small, pated Ne ga ondaae oie jacinta bt the
-snell eetiggalae pit. Interior white, with a aouule mayer ioe ce
anterior adductor muscle scar; inner margin radiatcly wrinkleds "pal:
ot a californiane Berry, 1936. ( Proccedings of the iialacolog’ al S
Ole XXI1, Part 111, Nove 1936). 100 fathoms off Santa Monica, |
i we knov; of no record of this species other than the type spe
48 presumably still in the possession of the euthor, Dre Se ee
of the club has scen it. It was obtained from a stone taken Sisk ishern
WeHe Golisch, summer 1918, ea
ry with Ropmdue) pone: sculptured by eatelecbine lemetige and
r rarely almost smooth; lower valve generally decper than the
Loe fa be: flat or sieas imesh concave; tteement in a mesial
ase 1857. Range otein by Dre Dall in Bulletin 112 is
ound to Gulf of California". However, it is now thought that
is confined to ‘iest liexico and the Gulf of California. Viost of us
following the opinion stated in Grant and Gale as follows: " 0. pee
> folintions on the outer margin, and a row of denticles which fit.
f the opposite valve.” True Ostrea almula Carpenter from the
eee ee) ute Aelie Strong Eo Se raat ren eo) by a ‘brown
Delay ued, to confuse Ostrea mexicana Bevery with this “species”
ae mexicana from the Gulf is alve ys dark inside and eee
Loe of San: eres Calif. | are in Sbatity the above species,
sib alike = Laie Saka’ to Cape San aTaeets Lower Calif «
[ Ceepemtons: is thought to be but a color form of jucide |
ansa Carpenter, 1864, " yonterey to San Diego, Calif.” Ball. |
opinion has been that this is a situs form only. It is usually
nd not in clusters and the flat form easily explained. However,
ein ie to ule Melia ae suggests that this is a flat
nandicgrans tall on stones from. the eavel beds off Redondo Beach
20 fathoms. However, Hertlein says that the northern range records
‘and expansa are hardly separable, for, by definition expanse
trea ‘Sonchaphila Coranabers”
e 1 Gab, Mle a cle Gate ctnke dtte spodien dn the spaonony
a “eoilatar sabes ‘It is found recent in icexican waters but is
i
¥
" Intraduced species of Ostres Hy i ve iy
reported that’ this species has, been introduced ae Apmport
Bays but as far:as known did not takes | : Rag Ae
Ostrea virginica Gmelin, 17926, Imported from the Menai co st. T is.
: as far back as 1870. However, propagation in California oe 4
_ Thunberg, 1793. Several other names have heen. placed in. the
species by authors.. The latest. data indicates that these Jay
but one species, laperousii. Dre G, Dallas’ Hanna ,, Californi
ae and. g fas hun eres 1793, is BpEet es. to the
largely dependent upon the iSeoege each individual happens
‘Keep, Josiah " West Coast Shells", 1911, p. 57-1935 Bay oy ifs sl B
as ienlactec ente)
San Onofre, Galifey |
PEN
'
Ostrea chilensis Phil, ~ This is, nel tks pb edible Porm of the Gulf,
Teaching @ length of ten inches er more.” ( Pilsbry and_Lowe Me. S
has been ‘planted extensively in California waters according | o Dr
eeeereefal, probably due to hoes Sessler
cing the ‘ound form as ates nnd ‘the: long aienaen”
re | Exotic Mollusea in ene Bull. Dept, Arric, 1939 peat
The name: la ervusii is ‘pometimes: hic EAR IS to
Intergrading specimens between the two are ahatdenty
-berg's name is prececupied by " gigas” Meuschen, A780, it appe rs
Japanese oyster: should be indicated as: " laperousii" according
-lein of the California Academy of Soienced le) n
References on this species - follow: i
Pe:
McMillan, H.Ce & Bonnot, Paul “ Oyster Culture in Calif." : ‘Cal
vol. 18, noe 3, Bosc 1931, PPe 246=251, 5) text tiese Uy
Galtsoff, -P.S. " Introduction of Japanese oysters into’ the Unite
Dept. Conmerce Burs Fisheries, Fishery Ciroular, NOs 1, Auge
Bonnot, Paul, ‘" The Calif, Oyster Industry". Calif. Fish & ‘Game, v
MacGinitie, arp " Amer. Midland Netairalist" Vole is, indie!) Bigr
( Intrdduced in Elkhorn Slough; name used, ene 4p nteus". —
the ane Fiaue: on the ent anterior one sheltow The bad,
of rather heavy radial ribs, and finer riblets, which are cros=
xceedingly fine incremental nme | especially conspicuous on the left
should be. mentioned. that ‘somewhat aifrerent descriptive terms are used
ons of this group, the monomyarians such as the Pectens and Oysters « .
14s ‘at. right angles to that occupied by dimyarian pelecypods. The
ges to one side. As a result the following terms apply. The ears
ntral and dorsal instead of anterior and posterior. The hinge line is
« The free ends of the valves are posterior, The byssus is always ven~
e right valve is’ the valve with the byssus on the right ( and bears —
1 notch), the left is the valve with the byssus’ on the left.
6 ( Mem. San Diego Soc. Nat, Hist, ,1951) maintain that the genotype —
e@ Pecten adscensionis Osbeok,1765. and give a voluminous and interesting —
of their case for Pecten Osbeck,1765. Osbeck stated that his species
hed to a piece of coral. Grant and Gale drew the conclusion from this
that ‘species must be a form similar to our Hinnites anteus Gray, and
_ therefore ‘placed Hinnites in the synonomy of Pocten bers Oe the cther hand
Ostres maxima is one of the group with a flat valve, a much different type of
shell, the Pecten of Osbeck has been rejected by Dr. L.G. Hertlein ( Calif. Acad.
of 80 ences, Vol. XXI) who gives the following references to authors who have
dtecussed it and also rejected it:
vy oHey Bull. ‘Mus. Comp. Zool., vole 43, no.6, 1908, pe400.
‘Iredale, cag! Transe New Zealand Insts, Vole 49, pte 3, 1915, pe. 198s
| Winekworth, Re, Jours Conch. vol. 20, now 2, 1934, pedl.
-Dre Joshua Ls Baily Jre ( personal communication, April, 1944) states the
osition | to the Grant end Gale theory as follows:" The difficulty with this
action is that Osbeck's description is too painfully brief. Our Pecten latiaur= |
satus spins a byssus by which it attached itself to kelp. It may be that Osbeck's
Pecten was merely fastened to the coral by a byssus, and may have been some
A form similar ‘to our P, latiauratus. Also it is said that P, irradians of the
e Atlantic coast spins a byssus when: young= though I have never seen such a spec=
(mens Finally Hertlein has suggested that Osbeck's specimen may have. been a
1 to which the coral had fastened itself, in which case it might have
ane anything. I believe that Osbeck's publication of the name would have been
‘sufftotent to establish a type if it could be identified. If it is ever found
it will then be. necessary to revise the. nomenclature of this family accordingly.
ae Osbeck's name is:a nomen nudume”
4 Dp. Baily mentions a further curious theory in regard to.this disputed
Lnderpot™ In Dre Fred Baker's card catalogue Pecten islandicus is indicated as
type. This, | ar correct, would make Pecten and Chiamys identical, and the flat -
valved forms would have to be called Janira. But there is no evidence as to
where Dre Baker picked a this type des fen ation. Certainly I have never come
across it anywhere. _
fas Also, ‘Tryon, in his. Structural and Bystematic Concol ogy divided Paoten!
into many subgenera» to all of which he gave subgeneric names except ones ‘This |
one is the group commonly called ye ee and I think there ean be no rease
onable doubt that he considered it rue Pecten 8,5. But again the evidence
on which he ‘based this conclusion is Hot known, so that we have no choice but
to accept the group known as Janira with the flat valve to be the true Pectens
mig tue ‘that Jenira, has a. at itferent tyre but this 1s so mush like Peoten
the taxonomy of this group has been the subject of a great deal of diepup.
’
SS
Posken t Pepteny’ die siigte Doles 1898
Bank” ( Dall), to Ban Benito Islands
‘Subgenus ae Bolten 1798.
nabehihoe: that ‘Jenira % '
Pecten s BeBe by Grant and Ga
Note: The southern species Pecten (
related. Dr. L.G. Hertlein states “© It is
Species, inter grades with the northern P. |
Collecting data: Dredged in abundance in
on gravel bottom, juvenile specimens living ( 3" t
many dead valves oe. fresh adult. Rea
adults 8/1940; good specimens dredged off Avalon, ¢
35 fathoms 8/1937; one fine living specimen washed. int N
common in the Pleistocene deposits at Hilltop Quarry an
and also in the Del aie Baldwin Hills a epert iN Bureh)» i
Pecten 8eSe
~
Hormannsen 846). ee iy
" Shell equivalved, of medium size, jeibomicutng.- or ove
moderately inflated, dorsolateral wings subequal, wit
“ally larger, byséal- sinus under the right anter ( ’
-pectinate lower border. The sculpture consists: of ather strong radda
with finer riblets, often beset with scales." Dall, Bartsch, F
Dr. A. Myra Keen “ An Abridged Cheek List, 1937", ‘Dall, arts:
" Marine Mollusks of Hawaii" 11988, and other recent lea gui e
to full generic: a tandanee, 4
Pecten ( Chlam rs) hoptedun: herteius Gould, 1860, w Port.
Diego” Dall.
5 ly | ndiv
ornamented by prominent sone There are nine narrow, eee nt
, hericiu
Toisnernan’ but enede ca Oe
only a few dead valves ( A. Smith);
off Keton Island, Puget pate Wash,
lier); spe ite: Boe Straits of Guan de eee with yellow on. the umbones (
r . h)3 common in the Pleistocene of a ea PALEY» and Timm' 8 Point
deposit ay, an Pedro, Calir. ( Burch).
s) herictus pugetensis 1.5. o1aroya,1920.
@ 0 ‘Wales is lend,Alaska
t jf A re (fy
ay, Calif." ( Gregg.) Bee ae
Gregg makes an excellent | SE eR Uae ec wy
iis contention that aa TRE ASR
subspeci s but a dis inct “eee ie \
ay Md altl on: to A article
Dre enh aes has. written the
ce entranoe to bay,
‘specimen measuring
«3
cad aaa fis
ce between
~! - pibs x :
right valve
RS
Pecten ~ hericius pugetensis olaroya
fk young speeimen -off Redondo 25 fath.
oe
Go y ‘ 2
ons on has lotae Iwas: dis-
see At would seem that
ina a11 ‘the specimens I have examined a have f ied: to note any such
of intergradation.” ve eae x
Collecting data: Puget Sound: S.B alway ¢ many, looelities, ( ¢
Hinchbrook Island, Pr. Wm. Snd., Alaska ( Norberg, July 1936); dredge
Monterey, Calif. in 40 fathoms on shale bottom, 8/1937-40, also dredged fre
“tly off Redondo Beach, Califa in 25 to 50 fathoms, spring and summer, 8/
not uncommon in the Pleistocene of Timm's oe San Ma, Gali. x
Pecten ( Bev) hericius albidus Pall, 1906, is “Mleutien Totanaet™ 4) ‘Da
Type locality: Unalaska. : hy
Pecten ( Chlamys) hastatus astatus Somerby, 1645. 0 Monterey to. ban ‘Pedro,Calif,” t Dall),
and § outh to off Newport Bay ( Burch); to ” San Diego" Ne Grant and Gale)s rales
Collecting data: Off Monterey, Calif, in 1040 ‘fathoms, in sand and on .
shale and corralines; fairly common ( A. ‘Smith); fine ‘specimens of bright orange
color off Monterey in 20 fathoms shale bottom 8/1940, not uncommon off: Redondo —
(ae re 25 he 50 fathoms, off Avalon, Catalina ‘Teland, 1957, din 26, “fathoms. w
Burch :
preuee oa Chia: s) hindsii hindsii Carpenter, 1864. Bi Bevin Sea foe Diego co
Note: Grant an nt and Gale, 1931, placed the Reece in oes
Pek of the typical. Mre George Willett os the Los Angeles fuseum agree
and the consensus of opinion is so strong that we are listing Pecten ( =
hindsii navarchus Dall, 1898 as identical with P. hindsii hindsii,
The Source of the San Pedro and San Diego records for this Tar northein,
species is not known to any member of the club and are open to questions _ aig ia
_ Note: The sculpture between the ribs on Pe hindsii, islandicus etee ‘seems.
_ to be 80 variable as to indicate that this method of differentiation | is of |
little significance. This is the opinion of Mre, George Willett of the Los. An,
“eles Museum who collected these species extensively, in Alaska, and has been
our experience in studying the small series.in our collections ;
Collecting data: Prince William Sound ( ‘Léwis); S.E. Alaske suas. Looe
“ities ( G. Willett); Straits of Juan de Fucca in 50 scetivalh | Sa Eyerdam)3 specs
-imens of yellow color from Straits of Juan de Fuccas_ .
Pecten ( Chlamys) hindsii jerdani Arnold, 1903, ¢ Mem, Calif. Acade Beis @ Vole
Pe Uli, Pls Le, figs 6,7, 1903). Type locality: " Pliocene of Deadman ‘Island,
| San Beare) Calif, ’. Recorded living " at various places with hindsii® ( Gray
and Gale). Collected living " Forrester Island, and. Howkan , eee. ‘an
Sound by George Willett of the Los Angeles Museums sali ie me
| Grant and Gale, 1931, say of this species " This variety is” comet
_ between hindsii and kinoaidi, and it is doubtful es any of. the’ dis ; ean =
hinge than Higanae! the ribd of Kineaiad are narrower and as ge: ike
WJ. Eyerdam reports havirlg taken the species at lat. 58, Alask oy
Pecten ( Chlamys) hindsii kincaidi Oldroyd,1920. Type locality: ‘Puget Sound.
Drs A» Myra Keen reports that MacKenzie Gordon has. this, vertety from bah
Bay, Alaska ( lat. 58). |
Mr. George Willett places deastouild in the sjmonymy of) Jurdandy.
probably correct. Grant and Gale, L961, ata " This =e is dietingat ene
sg its small size and its few distant ribs," Waa alee ‘
AU LAAN SS
i AWN) right valve left valve
HOA x 2
testy aoe (
Ac
Peeten islandicus Muller | Peeten tumbezensis d' Orb. '
Alaska= Willett Coll. Ghampemco,Guatemala 14f Strong Coll.
\ ;
a.
Me i ‘i
Kens Hi te;
Caen
Hee. right valve right valv
Noe ‘ i x 4 x 1 ;
ip ela eg :
Pecten islandicus Muller Pecten hindsii Carpenter
Glowecster, Mass, 30 f Puget Sound
right valve
mL
Pecten hastatus Sowerby
Monterey, Calif. 20 f shale
get Sound 7 “Chesap
and fait Scotland Gi Wood) C Grant
The consensus of opinion seems
coast fauna. Note by Mr George Willett of the Lt
not Pacific coast", and Dr. As Myra Keen writes '
never seen islandicus south of the Bering Sea" ‘s
Note: Grant and Gale, 1931, were disposed pe make west ee Sp
into varieties of east coast species. The consensus of eet op seem
this theory as ee eye
Pecten ( Chlamys) beringianus Middendorff, 1849. " ' Bering Sea" (Dal)s
+ and Aleutians ( G. Willett). ee
This species is figured by Grant and Gale, 1931, who say le. at " th: i
~ies is easily distinguished by the few broad eee ribs. on the — B
thought, a variety of islandicus, for it is very tee Ce eota
respects it is closer to roe By ait tacks the SEEnOR and
eee this ae s Ry
Pecten (_Chlamys) lowei Hertlein, US a Gulf of Cal eentes poe en
? Catalina Island, ‘Valif." ( Hertlein). he The Recent phic :
There seems no reason to doubt this locality, atthough the range
that of most west American Pectens" e
Subgenus Patinopecten Dall, 18984 type ( by original deste) Pe
Gould. ed
" Shell large, thin, sometimes of a ee pearly texture, hav
outline Ee very low aes valves a, hie! Eee @
species" Grant and lates RUG
Pecten ( Bettany oS en Bowens caurinus Gould, 1850, Hake as given in “note. rom
Myra Keen : " The range “Ts Wrangell, ‘Alaska ( lat. 57 not Wrangel Te
south to Humboldt Bay, California. The latter record was reported by
McGinitie who dredged it there," Type locality: Puget Sounds.
Dr. LeG. Hertlein, Calif. Acad. of Sciences, has published two ar’
Nautilus dealing with the range of this species= Nautilus, vole Bly
Ps 144 and vol 54, Now 2, Pe 68, 1940 in which Hertlein gives the ps
" Channel Island, Oren Inlet, Cordova, Alaska to off Point Reyes, | fe
Note: Many of us have specimens of Pecten yessoensis Jay from Japan
have been imported extensively and sold for use as cooking»
specimens could be purchased for a few cents. at the Fish Pier
Carpenter considered yessoensis a variety of caurinus,and t
any amateur collector is in trouble if his labels are "mixede ie
Grant and Gale do not state the origin: of the Williamson San Pedr
for this northern species. It sounds too ‘Allogical to cons unless
based on a fossil. This species is not uncommon in the Ploistoce r
San Pedro, and even today it is possible to find ining seb i gaan
elder heme hel “e eine and progenaiie nae ‘1849. a uitinitels: alae
ae identifies as identical: ereieun threaten the well known name
ce ion in. eye: Pieteesoens | of Timm's Pte San Podro,Celit. ( purch) Humboldt
cay Puget Sound ( Sorensen )s !
ieaphekecton Verrill, 18976 Type ( by even desigation): Pecten
iheris yonrade
"Shell ‘thin, small, of low convexity, approximately equivalved ( ‘except
) ears); sculptured typically with only a few low, broad folds, but on
the elder Species and on the typecast variety of P, latiauratus Conrad, where
relat ion to typical aeguipecten is more clearly shown, the folds revealing
: true nature’ as more definite and more numerous ribs; hinge line long, some
s as long or even longer than the shell, byssal notch foe with bade eens
t delicate) pectinidial teeth" ( Grant and Gale).
Note from Dre A. Myra Keen: " If you take Pecten as the sole genus of the
33 OS Hertlein does, then Leptopecten would be a subgenus. If you start.
‘ ding, | as seems to be our tendency here at Stanford, then Leptopecten
ither be ‘® Subgenus aed Aeguipecten or 4 genus in its own nae Tele (4
re) hoice.”
Grant: oe ‘Gale used it as a section of Aequipecten used as a subgenus of
! LO sient Le a dre in y " West Coast poets uses Bequapebten ‘as
Oo
cten as ih thurstas Aes hiretus eeneae: 1837. ve Monterey Calif.
3 GaiF Ce teiirrie (“IVS. Oldroyd); San “rancisco Bay, Calif. ? { Packard)"
ertlein). Typé locality: San Diego, Calif,
hol ppepeeti on: of Conrad! s original figures— ae Jatiouratus and monotimeris
ne,
iy ‘pointed ears. The longer hinge line and yonineatly lamellated Fras an
75pe distinguish the subspecies latiauratus delosi ( Plate 19, fige 10)
from Conrad's species" ( Hertlein).
' However, Grant and Gale, 1931, place the wariety, Pecten ( Leptopecten)
- tatieuratus delosi Arnold, 1906 in the synonymy of the typical. Mr. George
Willett: ‘of the Los “Angeles Museum agrees with Grant and Gale in placing delosi.
b Rane also note the perreny Pecten ( PERE ls td latiauratus fusicolus Dall,
present soens ae ranon the Heat concluéion:
(. Leptopecten) latiauratus sus monotimeris Conrad, 1837. " wincdiey, Calif.
of California" ( Dali). Type locality: San Diego, Calif.
ede the discussion of’ monotimeris Grant and Gale, 19351, say; " This variety
ties n great abundance | attached by “py its byssus to kelp. Its situs accounts en=
tirely for its special characters. Mrs. 1.8. Natali Ae has informed the writers
=
at low tide level near San ‘Pedro. The forms described by Dall as fusicolus and”
y irnold as cerritensis are but variations of this variety, having 4 smaller...
umber of ribs. eee pak almost surely without significance. aorter ere dactene
anveblon’ GREG Ed etc may be fi
close off shores ‘Therefore it seems
latiauratus are but forms adjusted to a
Collecting data: To attempt to give a Y ;
ppeatee would be a waste of paper. It may be taken in great numbers
following habitats: off shore kelp, eel Sibi pilings, Stones at mi
the habitat of the typical form seems Ad be in deeper water and 1 usual yo
_s7ed to stones and gravel. :
Pecten Pecten ( Leptopecten) paucicostatus | Che penten! 1864. " Catalina ‘Island,Calife
to Gulf of felifornia” (Dall) Tall). ” Santa Barbara, Calif. to Gulf of Calif.’
"In Garpenter's seen eet the species is listed from Banta Barbara ‘Ca
recent collecting fron local waters ate to meheca: of the club" t sere
Grant and Gale, 1931, place this species under the subgenus Aequi) ecten _
and place it in the synonymy of Pecten tumbezensis da‘ Orbigny, leat Hertlein
places in the subgenus gee onl hl » and also Places in oe } SyOTYTR of tumbeze —
-ensis. E aes tc
Pecten ( Leptopecten) tumbezensis d‘ Orbigny, 1847, " cult of ‘Gali goede to are
Santa Barbara, Calif. ?” The California record of this species 6. doubtful. se
" Arnold states of this species, "A pair of valves in the UeS. National Museum —
from U.S. Fish Commission Stae Nose 2840, Santa Barbara Islands, is ‘labelled ae ne
tumbezensis d' Orb. This shell is probably an albino. variety of 2, Jatisuratus
having just a touch of color on the interior of the posterior ear t * a
valve, The true P, tumbezensis is from the Peruvian part of th
coast." The Santa Barbara Channel listing for wih as species” seem
entirely on this spesimen" ( Strong). a “4
This species is distinguished from P. latiauratus yf see has. fewer pues ea
and the tops are more broadly rounded.; by its heavier shell and stronger ribs."
Grant and Gale. " The left valve usually shows a sprinkling of Light t bluish
dots on a slate colored or brownish sg einer ( Hertlein).
Subgenus Pla agioctontum Dall, 1898, Type” ( by orige desig.): “Peoten yentricosus
Sowerby» ae
" Shell like that of Aequipecten_ SeSe but usually with stronger, squarer_ hina
on which the radial striations are faint or, obsolete; valves often mo} ¢@
hinge line long, ears nearly equal" ( Grant and Gale, 1931). oman
Subgenus Aequipecten Fischer, 1886. Type ( by monotypy) = Ostrea oper arts. i sc
vi Shell of moderate size and thickness, of circular outline; ribs unifo dis=
-tinct, ‘not bifureating, sometimes with finely imbricated radial stri
ears usually equal, the byssal notch of moderate depth, etenolium usu
present but small" ( Grant and Gale, 1931). ya
Note from Dr. Ae Myra Keen: " As Grant and Gale point ave: ipecte
prior to Plagioctenium , and as far as’ I can see is doubtfully | separa Se
I have abandoned use of the latter in our collections, and Bs now th ke
_ wrong in subsuming the species under Chlamys in the Abridges iets? sre
However, Dall in Bulletin 112 used Pla foctenium and this pract
been follawed by Hertlein, Willett and others. Ther ll con
presente K ; bee
Pecten ( Plagioctenium) piroununte Biwecti, 1035. " Monter rey, , Calif to
Peru” ( Dall). Grant and Gale consider this species a variety o: -gibbu
" Pecten ( Aequipecten) ibbus Linnaeus variety circularis Sower Poy Ca
" sTthough the typical Gulf of California form is listed fromthe coast no mem
~ber of the club has specimens that can be classed as coming under hig ( Stron
on “spectos of the California coast. The > only ad stangtion
; aris seems to be that acquisulcatua attains a larger size
ea ‘the ene is thi inner with narrower Jes, and more
vetoay from the young of the ‘variety. Specimens cite from as far
Santos Bay produce adult specimens that if not typical circularis
“intergrades toward the typical. A logical inference would seem |
t aequisuleatus is but a cooler water form of cireularis. ( Burch). _
ithymetric range of this species is somewhat interesting. It has been
abundance at the far upper. end of many of the sloughs such as Newport
heim Bay, Mugu etc. and on the other side it has been brought up in
from as deepas 25 fathoms and is very common in shallow depths
| Harind tee:
bf ey. hasauigeine, subequileteral, close, Bahprane by the
d irregularly; hinge without teeth; ligament thick, in a deep,
tee ae Fecken in its irregular growth, and an being adherent, “
Conche) |
Pe ioeee pascde 1825. a ' Aloutian Islands to Magdalena Bay, Lower Calif.
Lo Rodney. Gale ’ ‘Trans. San ides Soce Nate Hist., vole ie Noe. 9, pp 91=.
928) made an excellent case against the genus Hinnites. This was later
elaborated by Grant and Gale, q Mem. San Diego Soc. Nat. Hiat., volel, 1931).
le ejected Hinnites as a genus and described Pecten multirugosus Gale, 1928
: ew name for the above. species. Inasmuch as this is still a much mooted
tion with the burden of proof upon those making the changes, we shall follow
old name until all of the evidence is in. It would seem that if we retain
: there would be no question about also retaining the specific name
iss Yaka Dr. Ae By Keen writes ¢ * The name combination Lima ig
‘0
*
Y 4
fe Perth) +. Allyn: Smith writes that the (BEpaisd fs mot found in 4°)
TesKle over ene: pet nla ke of abe 6
collection I continue to be inclined to P
L. Baily Jr. states the case as follows:" In 1 i:
igantea, and in 1825 Gray described Lima ima gigantea , the latter bein
“nites giganteus. These names did not at at first conflict, being in sep
genera. In 1826 Gray took the species out of Lima and put it into Hir
genus which is the same as Hinnites, according to Grant and Gale, T
decided that Plagiostoma and Lima were the same, and that. therefore &
Species preempted the name, being older. But Opinion ‘#83, does not e
the case, Grant and Gale do not tell when Plagiostoma was made equ
If this were done previdus | to 1826, there would fe ‘been two. ‘Lima_
first synonymized with Lima Beacon.) we must ae “a re was Pir s
~er it has the same type, 0: or merely Lice it is defined the Prien
-ission settles the matters
W.J. Byerdam published a note in the Nautilus, vole 47, ‘Now op ‘ :
the record size of this species. Eyerdam's specimen came from off the San Juan _
Islands, in 1918, and a lower valve measured 8 ig inches in length by 6% inches
in width. \3
The bathymetric range of this species is of some interest. It is) |
~on off Redondo Beach on gravel bottom down to at least 25, fathoms, ranging in ae
to the pier pilings. An occasional Bree nee is Hebei, that vine ne ci become —
rocks, acs, breakwaters etc¢e and usually distorten a fit ‘the surround Se
Young specimens are regular in form eae annie & nas a
Subgenus Propeamssium De Gregorio, 18845 Type ( by nonotyey) ronken >
=mussium) ceoiliac De Gregorios
-lucent. The left valve may be smooth or with fine radial | or poth radial
concentric sculpture}; right valve somewhat flatter, with concentric sc’ Pp
appressed near the margin to the left valve, resulting in a slight: marginal
concavity. Internally there are ‘fine radial riblets, which are neue
through the translucent shell." ep)
_Pecten ( Pro eamussium) alaskensis Dall, ie7i. " Pribiloff Islands, Be
‘and southward to the Santa Barbara Islands, Calif. Japan." ( Grant: an 78.
Type locality: Alaska. Grant and Gale, 19515. extend the range to Magis e
Bay, Lower Calif. " usually in deep water". TRS ie si
Collecting data: Forrester Island, Ketohilen, alaska ¢ G Minlott)s Prince
William Bde, Alaska ( Lewis.) — OG OG Se Ae Sie a
“Right ee
Pectin alaskensis Dell
walve, and after it is a little more than half grown at dovetone |
outside of the right valve also." Dr. LeG. Hertlein of the Califo:
of Sciences ( personal communication, May 12, 1944) says " As to.
it does not have the appearance of a Delectopecten but more like +
—eamusium as suggested by Grant and Gale. The original descriptic
mention any SR ee ribs but it appears that ayn eae Ge this.
in altitude. The general resemblance to the sodeicn 8a: anus ‘Dall Seon
mantic would seem additional evidence that teers ey belong to Propeamus:
Subgenus Delectopecten Stewart,1930. Type( orig. abate, 4 Pecten ( Paeudemisiun
vancouverensis Whiteaves. ( Acad. Nate Sci. ahs oe ub .|
ear differentiated, Daleete ecten’ includes a group of gaara pe O
Pathe Wek. Paotese-whken teas been classed as " Pseudamusiun" pee
An important reference in making a study of this group is 1 ee
_ Lower Pliocene Mollusks and Echinoids from the Los SEES ni
(U.S. Geol. Survey Prof, Paper 190, 1938). ee ‘
The discussion of this group seems to hinge on the identity of the: ie.
of Pseudamusium involving several different views. Pseudamusium is based On);
an Atlantic species and is rejected for our species by both Hertlein and Wood=
“ring. Dre LeG. Hertlein ( personal communication, May 12 1944) advises "
Hyalopecten Verrill is base@ on H, undatus Verrill and is quite similar to ‘the.
west coast mud Pectens but there seems to be some difference in detail of a
Shape and ears. Anyway it is based on an east coast species: and may or may not
be applicable here. Deleetopecten which is based on the west American form
yancouverensis gives us a subgeneric name which we can safely use unless ci i
can be shown without doubt that some other. name is available for the spesiag 4
occuring here. I am in favor of assigning to it, arces, bistriatun Me.
, randolphi and subspecies. tillamookensis and. vancouverensiss As t
-ensis, I have not seen specimens and unless you have information » ty
=trary I should think it showld be left as a subspecies of randolphis
Woodring in the paper referred to above accepts Hyalopecten Verr: Be)
Delectopecten a subgenus of oe ee Dr. A. Myra Keen of Stanfo
ty writes — W" After studying the various genotypes, ae Peleuck and
If Verrill's analysis of Pseudamusium is \eoreeet, thon our spec!
not be included in that subgenus. NRSP Say, choose to use nee
a subgenus of Peoten. , m
Pecten ( Delectopecten) arces Dall, 1913. Me piel .SeN Me Vole ‘48 po bees oP ae
TOS) ey DEL Santa Barbara, calif. in over 500 fathoms, bil a4 bottom, Cate aaa
267169,U.S»NeMe” a a
Dall omitted this from his list in Bulletin 112. Woodring places: it in me
the synonymy of tillamookensis. a
Pecten( Delectopecten) randolphi Dall, 1897. " Bering Bea? to ‘Guaymas Mexico"
T Dall). ™ to Cape Blanco, 225-1064 fmse" ( Woodring)» .
Grant and Gale place in synonymy of P. pedroanus Trask.
Collecting data: Not uncommon in dredgings from 50 ‘to 75 fathoms °:
-ondo Beach, usually listed as from mud but in proximity to rocky bottor
been taken from holdfasts of deep water gorgonians. (" Burch) ;_ Catalina
( Willett); Hoods Canal,Wash. attached to apertures: of oe ee
i t Bering | Sea ie San
Sy ony. orward, ‘Inlet, ere Sound, Vancou=
rs done 10 ‘to 20 fathoms Tiere are two very good figures of ils
ae fabay! S.E. Alaska, Redohdo Beach, Catalina Island im 30-50.
ms ( Ge ra not uncommon in dredgings from 50 to 75 fathoms off |
Eccetee:, sane the species incongru s Dall were Raaortved and ee fig
by Dall. So far as we have been able er ne these species have not
lgured. ‘anywhere. None of the members of the club report having Boer
ns and they are placed in this subgenus tentatively. —
Delecto ecten) Angongrivs Dall, 1916, " Off San Dien Calif. in coi
Pbutietie Ven, 1904, " Dolphin and Union Strait, lAeothe. Ocean" (Dall |
oN ‘112 lists Pecten ( Pseudamusium) andersoni Dall, 1918, but the name
rsoni was” preoccupied by Pecten VP Plagioctenium) andersini Arnold,1906.
ave the species the new name listed above " Rectifications of Nomen=
ee Proce Cal. Acad. Scie Sere 4, Vole 18, Pe 175 nak
i Arg
genus hd ppoghi, Verrill, 1899, beanie Conne oad Arts and Batt, 18991900.
, oe jie peeve oeus Verrill ( by original designation). —
ane as Pe rr
dispar, etc. in which the valves are of. nearly equal size, with simple
é come evenly together without flemure of the lower one, and in which |
rickes are small and nearly equal" ( Verrill). id
my Cyclopecten) eatalinensis Willett, 1931. ( Heed iia Vole XLV, Noe 2,
193i)» @ locality: 100 oa Off White’ ) p pandings north side of
lina Telend, Calif.” es )
ollecting data: While Mre Willett decerabod this Spaeiica from a few sna
eat been oon in erent numbers off Redondo Pesets Calif. in 75 to
differ widely from the typical form of that group, suc
Ea ert toacent Dalle This name is hadea for the members who love a ngeteet
A note from Dre Ae Myra Keen about this name follows: “We have specimens from
(4213 fathoms off San Diego== a beautiful and fairly large, paper thin species.
tis not cited in Bulletin 112; Grant and Gale do not mention it, but Orcutt
ae Moliascan World” cites the name."
trea lima Linn
‘“ Shell equivalve, compressed, obliquely oval3 ante
=ico" (Dall). The type locality of this species is Fayal
eetie such as Lima hians Gmelin from Florida, Bahamas
sculpture and shape. It would seem that. they should not
However, there must be some difficulties in determining »
Lima ( Limatula) dttenuata Dall, 1916. pep re Bering Boa,
Tslands and eastward to the Shumagin Islands, Alaska" ( Dally. : SU
Lima & Limatula) subaurioulata SLE " Forrester Toland, Ata i
Feniay cui
Genus Lima ima Bruguiere, 1797. type:
posterior rounded, sp eres eae Lit umbones apart ea
brownish epidermis; niked area trienguler, cartilage pit. cebtral;
~pression lateral, large, double; pedal scars two,small."— ( ‘Pryon,
Subgenus. Mental lum Bolten,1798. Type: M. inflata Chemnitz. =
"Shell obliquely oval, thin, ventricose, anterior side widely g ping.
cmargins not impressed; hinge gnarein oblique; resilifer central, pro
into the cavity of the shell." ( Limaria Link, 1807). _
Lima As Mantellum) dehiscens Conrad, 18376 7) Wontercy Calif. to
There is reason to question the distance involved in the 1
sent us by Mr. Paul McGinty dredged 150 ft. off Palm Be
Le dehiscens. A comparison of these shells with ebges 2
note stating that the Boherroe: ie in the eee A
should be in order, i
is clomreanate data: AS a free evinning form this is one:
25 fathoms off Redondo eee Island and pile ar Js
ec: Limatula Wood, 1839» pita oe Bde sid ety 1808.
RS
gives the range on prec side " North Aelanttes pa tont tna Porto Ba
states " It has also been taken on the British Coast."
Collecting data: Forrester Ide, Ketchikan, Alaska; catalina tas
dredged in 20 fathoms off Monterey, Calif. on shale bottom, 25 fathoms off
Avalon, Catalina Id», and common in 15 bie 265 fathoms - off Retense Beach
sand bottoms ( aia. !
Lima ( Limatula)subaurieulata
Malaga Cove, 10 fathe sand, 1916.
valve aed the resilium on a raised unbitice’ process; in the left valve
} “esilium fits into a little depression. under the apex. Interior with two
retractor muscle scars in the left Sd tag paths rae ae: Rehder.
s yesal scar whokeae in Anomia there are ‘two fue salt scars present.
the amateur will find it simpler to remember that Anomia has in all
ele pee gst kone: in the ee or top valve;~ a small one near the aa
Peed d Orble: ae. San fears Calif. to Peru “and ‘the Galae
Islands™ ( Dall). Keen " Abridged Check List” gives the range to 37N
itude or near Monterey, Calif. A note from Dre A. Myra Keen regarding |
lows " The record of Anomia peruviana at Monterey was given
n the Mazatlan Catalogue, pe 168, as follows: " Monterey, 60 fms
« Perhaps it may be attributed to an error ‘of some sort, pea
of collections before ees saw them.”
ky nee littoral me sctore due to the fact that the lowe valves
. ttached and the habitat is below the low tide line. The ‘bathymetric
_ range is somewhat uncertain but it has. been taken from dredgings as deep as
26 as off Redondo Beach, Calif. (- Burch); taker by H.N. Lowe at La Paz,
_ Guaymas, Kino Bay, Mazatlan, Salina Cruz, Mexico.; Talara and Payta, Pery
ae ney beaches in 1938 and 1939 ( W.J. Byerdam).
A Genus Besotesmas Philippt, 1837. Type ( by norioby sy); P, be otene Philippi_- -
-Placunamonia rudis Broderip, Cuba, Recent. ( Grant and Yale).
veel " Shell variable, right walve rather flat, suborbicular, somewhat pearly;
- byseal: plug passing through foramen in right valve; a single conspicuous
ie. byssal scar present; hinge without teeth; valves poutptured with radial groo=
=ves" ( Grant and Gale).
ee Subgenus: Monia: Grey, 1849. Type ( by sub. ausige, Buc,, Dautz. & Dollfus,1888),
Rly ited gealandd dica Gray.
"™ Monia Gr: Gray is much like Pododesmus,5.8. but has a larger byssal open~
n e" ( Grant end Gale. )
| desinss ( Monia) macroschisma ( Deshayes),1839. " Southern Bering Sea
_ from the Pribilof islands to Japan and the Okhotsk Sea on the west, and on
: Arle south to eae, including the whole coast of Lower Californie, Mexico"
ee Dal}
‘a Collecting gots Very common the entire length of the coast on stones,
pilings etc. near the low tide mark. The bathymetric range extends down to
at least 35_ fathoms on stones off Redondo Beach, Calif. It is a conspicuous
fouling organism on anchored barges, bait floats etc. The bait traps at Point
Mugy, Calif. were brought ashore at one time in order to scrape these shells
off of them. It is safe to state that not less than one out of three of the
large Hajlotte. rufescens brought in at Monterey, Calif. carry one or more
“Pododesms | Nab teened’ to. the 5 shale
25, Alaska peninsula, Unimak ‘Island, Unale
Mitrofania Id. 1928, ‘TIzhut bay, Red Fox bay, §
(1922-24, Port Armstrong, Baranoff Id., 1917 an ag ait, Chi
‘Ids, Admiralty Id., 1918, Raspberry Id., 1939. ( W.d. Eyerdam, a
«ther note from Eyerdam yi also have | it from Reese tte on Pu et
valves are as thin as pager while others may. ‘be as quarter’ of an
I have a valve from Afognak Island that is nearly half an. inch t
many of the poe ene are ime wee ae a Msienary form of this rock:
‘should be deseribed AB 8 var ieee Fine
‘Bododesms ( Monia) foliata Broderip. " San Potpal Cad
ne Proc. UedeN. “if, Vole 87, Pp» 257). Note from Drs Ae Myr @
record in my " Abridged Check List" is based on Dall's statemen
in the Peruvian Fauna ‘paper. Dall could have been iwrong, of cour
detected a- number pea ya in a determinations" . ry fu
ia
;
4,
Lties alon,
s
bes ‘this genus. A note from Dre A ayes oie should ee 0! ir
this connection:" For the past several years I have beén. shee
ppetling ynacroschismus, but after a restudy of the deriv: ion, I
that macrosenscpa is anon by cee | es i
Volsella
fy ee
(Pree aig -
Seas: eee
; Lithophaga
he Aaah iy
ESS ESSA ee ee A OA tec a Ha
eet It
2 ve i y rage oy,
Ey eR So aN
e ; ¥
ieee Sols ee vee eee epee ee SD
y i Pemere t te e ee
J Oa
wulehees pects re ee enn ret crams
¥ is x
ayes ine
i: oN
/( Modiolaria) —
!
Me trossulus - My dunkeri ie anal Me se
( fr Atlantic) ( Alki Pt, Wenn
| Puget Sound,
The above figures were made by selecting typical specimens from sets —
of the species and simply tracing the outline of the valves on the starch
They only indicate the decided differences in forme
inal, Nolakedy" hinge teeth weet: or obsolete; pedal badiee iupebastons
ch ie pane le elose to the | adductor" wil ai SiS¢ asa
sorenenta untulation and coarse, often indefinite or vehtbddes
Cyt) californianus Conrad, 1837. " Tadleeke Aleutian Islands,
[ ocorro isfand) Mexico" ( Dall). " The type locality
lifornianus is " San Diego, Santa Barbara, and Monterey"; as the hol-
pparently lost, someone will have to designate a neotype from one
ities some day " ( Dr. As Myra Keen).
is the common large Mytilus of the California fauna, forming dense
igh tide line to the lowest tide lines The
alain size attained by this Lei
ilus ( Mytilus) edulis Linnacus, 1758. " aretic Ocean to Cerros Island,
ie mor dwide in temperate waters" ( Dall).
This cosmopolitan species would seem to be too au known to deserve
h comments However, collections from different localities and different
ts show such great variations in shape that there have been many variet«
“subspecies and agit described. We will comment upon @ few of. these
eae coast.
if. She is, Pe 29, a 16, figeds Otia, pe 214. San Francisco acy on foie
, sea nl I Carpenter, Suppl. Repte, pe 616 " Perhaps an accidental variety
sing crowded ona floating stick". On page 643 " Short, stumpy. solid,
". Mre AaMe Strong is of the opinion that this is merely a form caused
‘mollusk adapting itself to a strange habitat and therefore not even
\g @ varietal name, Dr. A, Myra Keen fails to mention it in her " Abrid-
yeck List". Dall ommited it from Bulletin 112 and it is generally ignored.
r, Dre Joshua L, Baily Jre in " West Coast Shells"1935, describes it as
ER es Gould and states that it is the common species in
Sar cisco Bay, having the common name “ Spherical Mussel).
Mytilus ( Mytilus) edulis trossulus Gould, 1850. Proc. Boston Soce Nate Hist.
P VOR Pe 344; it was figured in the atlas of the U,S. Exploring Expedition
(Mo usca), 1856, pl. 41, fig. 567. The type locality is " Killimook, Puget
Oregon". Dre Ae Myra Keen writes of this " from my own little collect}
Wy
~-ing xpedition along the Oregon-Washington coast I concluded that this is
Tillamook, Oregon, where the species occurs abundantly". However, Dre Joshua Le
ire comments on this locality " The old Oregon territory included three
Washington, (Gregan, «mt Idaho which explains the placing of Puget
ye Oregon,” —
Dr. As Myra. Keen mritoal ue pobatnet communication, May, 1944) " Some years
ude a statistical study of so-called Mytilus edulis of the west coast.
there isa ‘significant difference in size between a) the true Me edulis
ne tlantic coast, which averages 59 mme in length for 43 specimens3 b
e form on the northwest American coast ( Puget Sound northward), which aver=
a6 42 mm. in. length ( 47 specimens) and, like the Atlantic form, is purplish
surfaces; c) ‘the native form along the oentral California to Me shiner 7
coast, eiicss averages 301 mime re ‘length :
a bluish color on worn surfaces. ( ae nsp:
specimens, bluish when collected, now are ‘1:
age, end this distinction is therefore invalid Tr
~tion of Mytilus edulis trossulus. I am going to sen some sampl
research on mytalids came to a halt when I started measuring specimens fr
southern Tee as these seem to be a ee of pans Me edul Ak Te}
mussels ‘in our “gollection from sake and Europe were ‘not. rorneeaneeel
the population. However, the color differences are con eines as ala,
difference in height-length | ratios.” — ua
In support of Dr. Keen's conclusions Lamy, Es " peeidion! d
vivants du Museum d' Histoire Naturelle de Paris® , —doure Conchyl
vol. 80, nosd ( Sept.1,1936) on page 107 cites M tilus trossulus as a sepa
species, distinguished from Me edulis , he says, by const tant ‘differences eee
form, color, end smaller sizes Gould's original comparative notes on tros us
read " It is more slender and more cylindrical than Ms : rsal Wi:
is less elevated, the posterior slope rectilinear; the coloy O88
jet-black and without. radiations, and there is a difference in the: form a the
muscular impression." | é
Mr. AM. Strong is disposed to express hie opinion of triseulue by citing
Carpenter, Supple Rept.s, 1863, pe 532 " Is scarcely, a variety of | Leduliay 6):
which is very ‘abundant along the coast under its usual modifications of for 7
and color, but generally of smaller sizes" i nee |
However, note the figures on pago 6 of these mineeons, ann is
In regard to the possible | introduction of exotic forms of My is) oe
‘ship's bottoms Mr. AsMe Strong stated to the club that in his” opinion it is —
highly improbable that the mollusk could survive the journey ‘through ‘tropical .
as well as colder water and this lee raiel of basis, (= thy Bone be care ul
“ly questioned. 2 baal LA oe Oh a eh
ilus ( Mytilus) dunkeri Hose 1857. 292 Congas Ten ve 10, pe ‘By fe aoe
eeve'S species same from the Philippine Islands. " Shell triengulerly |
Hen shaped, sheen ert aye! incurved an Boon peewee me
if the posterior age, with the ‘umboes. contracted! aad Deakeds®
Reeve did not compare his species with M. edulis, — i TRY
Note: The Minutes of the Conchological Club of Southern Cal
discussed this species. in ‘Ane peee, few years a new irl of
very common in Newport Bay, Mission Bay. and don Pedro pe The
“on is of some odd form of ac edulis Le However, a compari n
shells with all known forms of edulis Shows it to be a mich mor
species. They were sent him from San Diego aaa Kekeelale Le
explanation is that this exotic. species was. introduced wit
Japan. Some of us thought this. conelusion illogical because:
seed of the Japanese oysters has not been used in ‘southern C
extent sufficient to accbunt for such a general distribution in
times Paul Bonnot, Nautilus 49, Nos 1, pe 1 gives an acco
sing at Elkhorn Slough, California in 1930 which did co
Japane However, Mr. Allyn Smith recently wrote that Bonno
planting a number of times and could find no evidence: thet: ny
taken roote fer
2 up this ‘and |
0 hear of a much aittorent life oyele which ‘would: wilde
ee Relotan’ ‘ot the ‘Ban’ Diego slecum writen | "We need wpeetneue: of
eri from the Inland Sea, Japan. They came to HN. Lowe from Ann
only uncertain whether or not our shell is really ‘dunkerd
ra Keen ( personal communication May, | 1944) " Mytilus t
18 Dunker, 1853 seems to be a prior name for the M, ('M.) dunkeri Reeve,
ce for gra anus is: Zeitschrift fur Malak., ‘Vole 10,1855. the two
are considered synymous by Lamy ( Jour. Conchyl,, vol. 80, pte 2,1936,
Hanna is interested in this. new record of an exotic species and —
411 check up for us and decide whether | ‘Lamy is correct in synony=
aia ee .
Btrong ts personal. sormunlaekton May 1944) Ahaha that we
el ne: possibility of our new shell being a more southern’ species
8 coast before definitely classifying it as exotic: " at the time of
eath there was on his desk a list of species from south of San Dest
e of this manuscript which Grant has. This included Mytilus
oring Exped. and has been listed as a synonym of Mytilus ater
ne ee the gh ea This sain een ee sr Seles should be
mre, EN ” The ee was first dsetaaseca by dukeaebeons
ytilus exustus Linnaeus, fortunately the same 5, alee later selece —
ted by Grant end Gale.” ( Dr. a. Myra Keon)s' tf ey
Ԥ ell sculptured with Lacan oad | fine, anene yh spaced, bifureating |
. been beh cede penile! ‘adepute Pope ‘the. relation of Hormom re
tess They do seem very close. The distinction seems to be cere
shhadontes has a ‘produced anterior margin similar to Volgellas Grant _
est on this point " Perhaps Brachidontes should be recom recognized —
year went dnto the question with some eare, studying topotype material —
> a. descriptions. We concluded that no true Brachidontes occurs on
mast today, although there were some species here in the Tertiary. It
% Baily Jr. ( Personal communication, May 1944) " Bartsch tells me
a” should be placed under Brachidontes, becayse both of these
ge» I feel that the taxodont hinge is of greater importance
bilus and Modiolus ( Volsella) is in the
dé a Subgenus of Modiolus ( Volsella), then Hormom
Pay -Brachidontes. Before my attention oo ets aaTter3 to
I Ce Df, considered Hormomya a subgenus of Mytilus, and Brachi-~
ce areas of Modiolus, but as 1 said above, I consider, the taxodont-
' . 80 hink it best to unite these twoe When I raised
to generic rank in Mi ae Coane Shells", Pins & did s0 on the advice
whi h corresponds to Me edulis in the Chilean fauna. I know of no rece oS
; termediate between ilus and Volsella, with Hormomya as a seo= a.
Dee A. Myra Keen ( meen mes communication, May 1944)" Dre Schenck and
0 us preferable to place Hormomya as a subgenus under Mytilus." Bur, Dr.
digiihien so 1 believe: Hormomya should be placed under Brachi=
odiolus pee |
a Rhee tors, cannot be a subgenus of Mo oluse
range Magdalena Bay to Patagonia. The description of this appears ie
‘The , following th
ilus ( Hormomya) |
noe 6, pe 70, pled, f plate wa
Type locality: ‘San Diego, calif, Bie al net
good size", “ an * unusually large’ no
measured: length 0.45, width 0.24, gicans: QO. 32
for Me stearnsi. As to color, our species seems to b
purple above, with the ventral face straw colored, N
None of the specimens I have seen could be sale cae Jounin:
M. multiformis as " (PUrPUney, ae marginum benalayn aie Tith
Tomine viridi". Ins ee
Mytilus ( Hormomya ) multiformis Carpenter, Metaat desc Catalogue,
(“date of part, as given on p. 109, Dec. 1855). Type | locality:
Mexico. Described as varying from smooth to saneae S:
4
>
rf
about % inch, breadth about i anen, ! : os
tilus ( Hormomya) adamsianus Dunker, Proc. wont ‘goat
( date of part, May 8, 1857). Type one iethmae of
this Siero ton are: Drs Prite Has 15, eta tae ae 56, Ps
Malacological Notes III, Zoological Series of Field | ;
vol. 29, Noe 1, pp 2-11, dune 10,1943 : and ‘EP. Chace Naut lu
October 1942. !
Dre As Myra Keen « personal sonunieetions| May
species is involved in this complex, then the name
the basis of specimens at the National Museum I cor
California form ( stearnsi) was separable from the
form, which ranges north to Cape San Lucas, is sm
finer seulptures The California omy, larger, hag:
is difficult. The specimens in our collection | ‘80
Pilsbry and Lowe's species may be something else
Dr. doshaa L, Baily Jr. ( personal c
of multiformis " Specimens from Mazatle 1 y en
epecimens. 1 have taken it in both localities e 0 me they
“ent species. But Carpenter recognizes this. difference and sa
taken at intermediate lich ane show a Bn 6 te fa vase ys
ava
as to names for these aeiea’® “and in writing of re
ae as that to Aceon the names | adamsianus Dunker and m
M. stearnsi and M. Leena A Mr. ark Strong is parte ve
that miltiformis is a distinct species, "t .
Therefore, the consensus. of opinion seems to be. thi t we
involved: M. adamsianus Dunker , the Panamic form ran
M. stearnsi Pilsbry and Raymond, ‘the San Diego form,
Calif. south to Oaxaca,Mexico; and Ms miltiformis
Gulf of California southe
Type oye ‘Punta~
| iformis Carp." "While _
be f the Yaribbaean region, it dif-
This ney be ahother distinct |
ontes muleteated 6 Serpe pr cl Niet Bartschand Rokdee a: Type Sane
Vaiss Lae ee, Dadi aml Hit authors state that this
olen iad :
Hormomya) recurvue. "Her sghaaes 18R00 upronede from Newport Bay,
re al 6 by or Trmper and identified by Dre Dall. One specimen only |
No one has seen it before or since. There is no question but that
error and the. above name Should be Aime ESS “ all ee lists
i
f ui fer noorde:. 18486 ron (pias) eealsopke Oe, wyttus bilocularis
As dl that of Mytilus. Pay ys ch an umbonal deck"
nei pilebry a.nd Raymond bee, is deposed to A on the under: side
fe) ‘and more Bidden from the light. |
Ree piae: vare aveBLotue Dall, 1916. Santa parteya to ‘San Diego,
Tocality: San Diego Bay , md flats. The description of this
and almost self explanatory 3 ul Shell large, the sculpture
e distal part of the valves nearly smooth".
ew exceptions west coast collectors ignore this varietal name
ttle or no significance. The first inclination is to think of
withthe sculpture Worn smooth. However, specimens of this. species
on in which the sculpture is obsolete but not worn. Miss Viola.
the San Diego ‘Museum reports that they have sets of this type from
are and from San Diego. Mr « Yeorge eres of the Los Ream, Museum :
in his collection.
m Dr. 4. Myra Keen " There has been some URIGAtTOn | as to whether
yrcatus ( Conrad) could correctly be assigned to our fauna, as _
Hawaiian Islands as type locality. Dall, Bartsch, and Rehder
of Hawaiian pelecypods ( Bernice Bishop Muse Bull. 153 ,1938),
hree species of Hawaiian Septifers, none of which resembles Conrad's.
8 the “holotype is in the Philadelphia academy and does resemble it,
coms Pretty is donsena to be the thing California collectors
i h Aenea peTLecaiy soon panne to distinguish ‘nan at aA 0 Rane,
one ie = rent oe C on, | ay 1
se Shell libage hed oblong, on sd poster!
the re
end ieee ace beyora muons hinge ‘edentulous. in adult"
_ Here we have another of thase mooted -
accepted errant Dall, Bartsch, and Rehde:
that we must accept Volsella ae than gener S.
in "West Coast Shells” and many other current aut
The sg apes seems briefly to be whether or
en Volsella — antedates Vonereie’ 8 “Modiolus, “and mus
Subgenus Volsella ses, |
" Shell moderately heavy, usuadly purplish ae ddish an
rather heavy periostracum which bears membranous | ings
Volsella ( Volsella) modiolus ( Linnaeus), 1758. " On the
the Arctic Ocean to San Ignacio patie Lower oe fo
Bapnmborcait ( Grant and Gale).
preliminary outline the patel Weabenent of opinion we, mae
Burch — " This Species nae been Nahe eae southern a “ays
not two aietinc’ species here. I may be wrong. ‘What aba
( Conrad),1837 is said to differ from this species i o
more inflated, and has a more depressed region betwee thet mbenes
and Gale). Boe. I have yet to see a local specimen tha 1 =
~cription and figure of capax. I have certainly never seen ai
southern California that could Perea ay be contuscd:
Jordan's shells from Ss. Tpiaoie chaclane. studied". Dr.
"We have no Ve modiolus in our collection heaton
as to range! ei _ However, eee Elsie Chace is
species are seater. in southern. Californi
Ving -2 3 together, but she. said ete ve
fornicata in clusters. ;
Collecting data: Collected by Weds te
Baranoff Island, Afognak Island, Amoknak Is?
nullipores and Saxicava ‘arebyes) | ee also
and Tromso eat ah aN alsa have them from
=es Bank, New Hoindland: look more Te My’
they lack the irridescent nacre. Without Gout
occuring in both the north Atlantic
-described. I have one large ‘specimen Pham Gnas, tan
_is also similar te the ones from Georges Bank, N.F., and
Norway coll. by I. Norberg in 1936 which are typical. Th
Penobscot, Maine and from Unalaska an Amoknak Island ar 1
other but are much more elongated than the typical and shoul
as a variety of N. modiolus to distinguish bspainiis aero AN
ir icitne |
oy a» Calif. to Payta,
rr pecies 4 of this. “Sanu being fount
aters, stones, pilings etc, It scems to reach its
ce on wharf. piles in the sloughs such as Newport Bay, Anaheim
>» However, it is cast up on the beaches all along the coast. We are
6 uncertain about the bathymetric range but it certainly ranges down
ral fathoms below the tide line. We have no record of dredging the
at any depth’ beyond the littoral, The shell of this species is brick
n the periostracum is removed. It is our opinion that V. capax is a
stinct species although Keepand Baily " West Coast ShelIs™ comment
ugh T | have eeave? eOnn Ee as to its being fia Dy distinet from the
| Hieleeta): recta ( Gonrad), 1837. " Bolinas Bay, calif. to Maddal~
ay, Lower Calif., Mexico" ( Dall).
Gr ant sand Gale say of this species " .., aiffers from Ve ‘noapic: Gane
he greater extention beyond the beaks of the anterior alation; a also the
ant rior half of the dorsal margin of the valves is straighter, the dorsal
lat mn occuring posterior to the acts ey Ve recta attains a larger size and
ften more elongate than V. modiolus"
‘The figure of this species in bylade Ad Baily " West Coast Shells" agrees
with specimens so classified by most of the members of the club. |
ee ctise, data: Our experience has been that the typical of this species
s the off shore form with our records reading, 7 faths. off Santa Monica,
‘faths. ope i Redondo Beach in gravel, 15 faths. off Ensenada, Mexico étce
rch); H. I do not recall ever: taking the slender, Te werent shell on
Hale ‘ Mrs. Elsie Chace).
sella ( Volsella) recta flabellata ( Gould), 1850. " Vancouver Island
‘Grant ‘ana Gale, 1931, say of this variety " This cui is close to recta,
is. larger, less ventricose, particularly at the mabere and the anter=-
for alation projects farther forward".
“This species is well figured in Qldroyd " iabine Shells of the West
"Cot it of North Coane Pl. 6, fige2 and also figured by Grant and Gale,
Nee pee: in
Pas airectiogs™ being very iliuminating." Our experience has been that
flabeliata is. ‘the ep reenin ad bay form petnough we have dredged the NEES
There seens to 1 ‘a "Tome difference of opinion regarding the habitat of the
speci Bs Kespiand Baily " West Coast Shells’ 1935, De a state " se. former=
ff vaHere of British ‘Colunetar a aha ranges as far south as San Diego
7p water", and ‘Dr. Joshua Le Baily Jr. ? personal communcication May 1944) —
says “ The fact. that. you can't separate these forms proves that they are a
single Bpecies. To my mind there appear to be three varieties. According to
our collection, recta is the form in which the byssaland cardinal edges are
parallel or nearly” "80, which recta flabellata is the large northern form in
hich these edges are close together at the umbonal end. I think it. wise to
eep both names."
is Collecting date Newport Bay,Calif. 2/25, Mugu, Ventura Co. 6/35, Mi se=
sion Bay, San Diego (Co. 5/36, Morro Bay, San Luis Obispo Cos very common
d exceptionally large 1/1940, all on mud flats, often associated with eel
rass ( Bureh); eis ‘Eyerdam reports * bi have this species from various local-
“9 inches. in Tee In my eouneL en are a):
from California up to 6 inches in length. I
several times but failed to detect any essent al ifference exé
Puget Sound form seems to grow largere". wee ;
Volsella( Volsella) fornicate ( Carpenter) ,1864.. ney We Spl dee: Rai San Pear
Cortez Bank, Calif." Type locality: Santa Barbara, Calif.
| " In this species the beaks curve strongly forward, downward a nd bac
-ward so that a portion of their curve projects considerably beyond th
_serior margins of the valves" ( Grant and fale). oat
- Our experience has beenthat this Species Aer confined to. moderati e
water. It is not uncommon as deep as 25 fathoms on the. gravel off Redo do
Beach, Calif. However, we have taken it from kelp holdfasts, and at )
_ took large numbers of fine specimens from the lower portions of the old Bonet 2
Saphire pilings off Redondo Beach. These were brought up by using diving
equipment from a depth of about 40 ft. We list it from 20, Rises ie) Mont-
Island etce It is not uncommon. . .commensal on the Haliotis ‘pireseee, brought aia
into the Monterey market. It is occasionall¢ washe a in Biter Din) but ‘is fee
rarely oa by littoral ebbaat cin : ‘ ee oe
ax 2 t tn pn eS
eR ee Pe FN RAT TEN Oe ee LT eS EN
Subgenus ‘Amy gdalum Megerle von Muhlfeld,181l. Ween ae dendrit um ¢ =
4s arborescens Dillwyn ( by momo typy ) « 3 ee ey ce
"Shell of medium to rather small size, elongate to elonga
fragile, white or translucent, smooth and shiny, with no |
for delicate incremental lines; perioptracum very thin c
-owish or greenish in color, often with gray color mar
thin and slender. Hinge line simple, without teeth or.
white, pearly." ( Dall, Bartsch, Rehder). A ihclany es
“Volsella ( dalum) pal ighie ( Dall),1916. " orf Bodega dea , Calif. and
South to Cerros island, Lower Calif. in deep water” a Wd ii ee localit tas
Off San Luis Obispo Bay, in 77 fathoms. oy,
In the original description of this species i? prede Us5.N Me vole ao
p. 404), Dall gives the measurements of the holotype as length 23; maximum ,
height 11.5; beaks hehind the anterior end, x3. diameter 5 mme ‘and ‘Sugge ted —
that it may be a variety of politus Verrill and Smith ,1880, an ‘Atlanta a
species. This was accepted by some authors. Mrs, Ida Oldroyd. lists ‘the specios
as politus pallidus in " Marine Shells of West Coast of North America", 1924. 4
Dall makes the following statement " None of th Pacific. specimens hav a
golden yellow color of the Atlantic species. and 1 ne on tan oi
“same saze. Otherwise the shells are very similar." | )
We have dredged specimens of this species off Redondo Beach co atdoceniy |)
bee rather “4
etionss Inverior |
M by t ea) a i
larger than Dall's measurements and some of them are very definit jen
yellow. However, we have had no opportunity for comparison of ow with ©
politus and are disposed to place the burden of proof on bc = to.
make a Pacific species a variety of an Atlantic species. | f
pelier bene data: Our experience has (pisses Leas Rich a
yellowish white almost Evan epareat shell oie quite rpaeend: t om anything
else. sailie. Willett reports isi; taken a in all abet off Los ¢ ronados e«
ay ;
x
y x1), Modiola beipeee”
ego radial riblets;
mp 1 scriptions of Seeehiaontee available and “they should perhaps .
led because there are many divergent opinions regarding its position,
‘Le Baily Jr. in “ West Coast Shells" 1935, Dall, Bartsch, Rehder
: ollusks of Hawaii"1938 and many others use Brachidontes as a genus »
Pp! the most interesting comment in this connection is from Dre Ae Myra
( personal communication May, 1944) " My present opinion is that the
es demissus is a ribbed Volsella, not a Brachidontes whether one consid«
Tatter subgenus or genus. The ribbing poe not bifureate and swirl
ird along the hinge margin as in Brachidontes."
_Brachidontes VSe Brachydontes. Swainson first used re ‘ame in his
Co Tacology in 1840 and spelled it Brachidontes. Therefore this.
8 the spelling we must use. However, the alternative spelling has‘been
ctensively used. Mrs. Ida Oldroyd used the ys An interesting little note nS?
shi “matter by Dr. Joshua L. Baily Jr. " The reason that the alternative ee
rm Brachy arose was because it seems more reasonable otymolegiedt tye:
am not a” reek scholar, but I believe the name Brachidontes means "arm Sh
oothed", and that Brachydontes means " short ‘toothed: It may be that Swaine
+ aa name he intended to use." | he ae
la ( Brachidontes) demissus Dillwyn, 1817. San Francisco Bay introduced
) Atlantic with seed oysters. Pas
ae oo. en Ms Bull. of Depts of Agric. Calits vol. 28, noe 5" says "
lama ies cote Wa! tebe found 4b very abundant on the mud flats along,
th ‘Bay | Shore Highway between San Mateo and San Francisco. ae
We ineenuis: c| Dall), 1911. * San Franeisco Bay to Cape San lucas "( Dall). i
locality: San Diegoe We are uncertain of the subgeneric positions | na
This raeree was described by Dall in Nautilus vol. 24, pp 110-111, as
Bla aa FiBigebun' of Botula with a very brief inadequate explanation
n both ‘the iene desert iption and his later aes he mentions
apie pasie: ae the) Gains otis in with the: Mytilus in many locals
~ities. Our ‘experience seems to indicate that it likes rough open water. It.
very common in the large neds of Mytilus californianus on the breakwater
‘Playa del Rey, Calif., Santa Monica , and also the breakwater at Coronado, —
1 Diego, the type locality. However, we have also taken it from the barnacle |
ilings at the entrance to the Playa del Key lagoon apparently not
i Mytilus in any way in this instance, All of its habits as
( gel 1 formand appearance indicate that it is a Volsella, as orig-
winally described by Dall. However, Dre A. Myra Keen in her ™ Abridged Check
as pee Pleces the species under Botulae eh
‘ IRIE AIG IIR A IO IOR I AOR A
PME hecclved the following interesting data on the genus Mytilus after
ing completed the above notes from Mr. Wed. Byerdame
ilus californianus Conrad, 1837. The following specimens collected by
dam ese Fort Armstrong, Baranof Island ( up to 180 mm. in length),1917e.
zhut_ "ise Afognak Island,1922- | Unalaska, Aleutian Islands, 1932 and several
ocalitios in Puget Sound. Me magellanieus collected by W.J.E. on the strait.
3 any in race uae are almost indistinguishable nee ee ae
A, f ) i Cone ))
Hanae It yee Popwaunut ie u aunker’ Roovo fo)
‘Stages it is similar to and is the
areas Japan SeasFrom Hise ole a
“Knox Coo, Meine. Z if ae aad
ytilus dunkeri Reeve) I tneroatioed fone
Specimens collected ae Eyerdam at. Teuruga, «
BP Ae Oe Elen \ hy ek eM bck halal ds deieded hindu
Sir sath
(a
4 Pilebry boa aymene
Mexico dat
Pp See In this public=
sction without descrip~
ce Py Bishop Museum
ve is set up as a distimet
and described as follows
oa, lahones ahbersee pedis or pea 509 apts a like
ilus , finely radiately costulate anteriorly and posteriorly,
» posteriorly expanding area below the beaks, which is dwye
adiat ‘sculpture. Ligament subinternal, ‘moderately stout, with rather
a ticl anterior and posterior to it. Margin crenulate; ventral margin
; oe." Genotype: Modiola opifex Say ( ‘by monotypy)«
Gregariella) opifex Say, 1825 is the label at this time on
ur west coast collections with few exceptions. This is the
- Dall in Bulletin 112 and followed by Mrs. Oldroyd. Dall gave
_ Santa lll to Gulf of Calif.". But before consideration
Piece it seems certain that all of the species involved belong
e genus Modiolaria ( Musculus), or in a separate genus of their -
an in the genus VolseTia( Modiolus). Data and opinions follow
for. arrangement. 5
@ indebted to Dr. 4. Myra Keen for the following notes on the name
lla Monterosato, Naturalista Siciliano, vole3, fasce 3, Pe 90, Dete
fide Bucquoy,Dautzenberg, and Dollfus,1890; Modiolus mullet
remedy ae ilar SEC ea aaa 1835) a Mediterranean
a in fact, Lamy and others consider Greg-
enus of Wediolanl a rather than Volsella) , with radiating ribs”
ded epidermis ‘on the posterior surface.
cings of figures of Modiolaria sulcata ( Risso) as figured
erg, a nd Dollfus, ‘Marine Moll. Of Roussillon, vol. 2,1887.
, of Gregariella. The description mentions fine, radiate
canal an denticles at Sane e end of ns Bearded
a fre te =) | ne
Vane fe aero fee
LH a oe
ae "geteaitely: different, then ee pists cannot
and Botulina is good and should be used. However, no
; to our. “knowledge seems to have been made of Botulina and
e by Dr. A. Myra Keen follows:" Reviewing the matter
regariella has priority over Botulina by a few years
had oats by 1907 when he published the Porto
@ subgenus of Modiolaria ( or Musculus) ,
t and nameless. he Dail, adden ign gee
“Dre; Le Ge Hoek yatin ‘of the cee Academy of Pectonees| ( per «
ny June 16, sony are The saga of the correct. genus for ais
untdeuleta: with the’ Se
Gregariella, shown by Bucquoy ,Bau
29~52, and with specimens of this. species
striated than the west. American shells. another Wi tecrenbe is th
margin is smooth while in the west American shells the entire ma:
~ticulated. The decision as to which genus to use se ms to ‘rest upc
-sortance of the amount of denticulation. After ac 34.
ad am inclined to favor use of the name Botulina Da Y
applicable without doubt to denticulata. "Perha is one sou] ¢
@ Subgenus of Gregariella. However, since Botulina is ava
west coast shell both Allyn and I favor using it as a |
- course to change if later study shows that’ it should 1
subgenus of some earlier genus or possibly bbandoned i:
We will accept the advice of Dr. Hertlein and
con use Botulina for the generic allocations
wii
Hotulinn ee ( ba) 1871. american Journa °
87. ¢ Pe, Le
etes, and form a: solid mass of Feeeilae forn, hon pean
ae the shell, There is an obtusely rounded carina ie
are | ts
anterior end being slightly. the cedar tees ‘is. eee gape
in the middle of the ventral ea a otherwise both. alice
au ted and t
“flated. The color of the shell is ei mike, 9 with | a ‘purple ae wpokin ath
the posterior muscular impression, and the umbones tinged with purple. RE !
epidermis is blackish bwown, thick, and liable to peel off; at is marked wi RY
faint radiating lines, as nearly as the inerustations will permit. of perceiv=
wing. Long. 07, alte o4 ine Habitat, Acapulco,Mexico, Dall, 1868. Lee
This very curious species is unlike any other I know of . In some re ~—
-pects it approaches Modiola opifex Say, which is. a much more elongated eae
from Rio Janeiro, Brazil. :
‘The above species was described as odiolarie. dontionlata
We have the following comments by Dr. A» Myra Ke St
" Comparison of west coast specimens of o ifex with t
with topotypes from the Caribbaean area leaves no doubt in
species is distinct. There seems to be no name for it unlesi
denticulata Dall mentioned by Oreutt in Molluscan World was :
West coast specimens differ from east coast in outline as
shallower, posterior end less obliquely attenuated, posteri
‘less pouting. " " The synonymy card in the drawer at se
_ placed opifex under coralliophaga, with semen Reeve 1 >
would have been Dr. Dali's. last word on ‘She matter."
Dall in The Mollusoe ri Porto Rico, My Sy ‘Comndasi
1884, Modiolue som adophnen oneLin, 1782, Squads ‘Bota
sinha Mo fodiola OPLESx ex Saye ; unt ani
ulos ee instar dencocane, testa ae pollicis circiter longa.®
eee vce mee me that hay iuloe to tne: same genus but Hate
some doubt as to their specific identity. Say" 8 Shellsapparently —
| e differences remain constant in a series of opifex from the east
O ot know, According to Miss” Keen the species are di ferent and after
study of |
to denticulate Dall, I have not seen a figure of the type of
Tt was described rather fully see ‘Specimens from Lower Calif.
Dall! 6 descriptions There may be a Dds as to whether or not
be a ‘separate subspecies,” —
usion is to refer this species either to Botulina denticulata
‘Botulina sp» Keene soe:
ing data: Our experience has been ‘that it. is. a dredged species
ios oderate d epths, We have taken it rather frequently off Redondo
25 fathoms gravel, and it was not uncommon in our -dredgings from |
rocks, about 35 fathoms off El Segundo,Calif. We dredged it in both |
ins and oh fathoms off Monterey, Calif. ( Burch) eft Catalina: Teland |
i if ‘ x j wumereny prairie
‘ i '
ronounced medial depression and the posterior end is more fopebine. |
rite ( personal ee ena ines Le) es have just gone over ae
Z
I
Botulina denticulata (- pall) ,3 1871 ae
El Segundo, Calif. me fathoms» a es ie Se
Genus Botula Morch, 1853. Type ( by subsequent designation, Dell), Boul
fusca (~Gmelin). 4
"Shell iong,subcylindric or rhombi oe beaks sub Gécnen or ‘subsenueiny
Subgenus Adula He & de Adams, 1857. Type ( by monotypy) » Botula is Adula
soleniformis ( d' Orbigny), | MERC
phell Thombia, with subcentral beaks; surface of valves polished, not
-incrusted, " Ve
Botula ( Adula) falcata ( Gould), 1851. " Coos. Bay, Oregon, to” San Diego, ie
Calif.” (“Dall). Type locality: Monterey, Calif.
This group with Lithophaga has been the subject of much speculation
regarding the manner of boring in solid rock. The excretion of some aci
assist it in boring sounds logical Rue 50 far as reported to us no i.
proof of this has been made,:
i B. falcata is distinguished from Be inredoniicaees Philipp! ane that
falcata has numerous transverse wrinkles — mn dark brown pertost ay
Be californiensis is shorter with more angular valves. ate
Collecting data: Boring in shale at San Pedro, Point Firmin, also
Jolla, Calif, Dredged in shale off Monterey, Calif. in 10 fathoms 8/37
Botula ( Adula) californiensis Philippi, 1647. “ Vancouver Island to Sa
Diego, Calif.. North Japan” ( Dall). Type locality: Vancouver Islan ‘
This species is much more common in the northern part of the
predominant species in southern California bho Be falcata. Howev
species is taken in southern Map gigas : mers
Eloetion.
Genus Dacrydium forell, 1859. Type: D. vitrea Sars. . e
" Hinge crenulations tubereuliform anteriorly, elongate posterio 1 a
Dacrydium pacificum Dall,1916. ° ‘Bering Sea, 1401 fathoms" <® Dall).
Genus Lithophaga Roding,1798. Type by monotypy) bere
: tulotes Roding
Mytilus lithophagus Gmelin. I
wShell cylindrical, inflated in front, wedge~shaped behinds) spidenay “
and dark; interior nacreous."” ( Tryon SS. basen : . i
genus from Botula." Gi rant and Gale at bs
as panpice )s Ve plumula Hanley |
backward from the beaks; with
: Ls: pattern on the areas betwe@m
projecting beyond the ‘onde of the hohukica opposed symmet-_
phaga ( ioc plumula ( Hanley), 1844, yee dosaiity: Panamae
his is ou, Tabel we we have been using for our common rook borer. However,
ok bue? Mr. praligs has given us the ee data wien is self
Yo " Lithopha s calyculus Carpenter, Mazatlan Catalogue, pe 124
states that the incrustation lies in a solid triangular layer over
ior part, with the arrow headed lines pointing away from the vertex
angle, At. the extremity of the beake there suddenly appears a deep
ng the termination into two knobs. Lithophaga plumula_( Hanley),
Mazatlan Catalogue, pe 125. Carpenter ‘states that the incrustation
st part presents the arrangement of a featherin lines running out
de of a mid rib which joins the umbo to the posterior end. The in=
ead beaks Hever? the geiay appressed but not proraeeee or
i Puma te wery! iictiar to that of ee and the latter becomes a
ee the typical ylumula Hanley, The incrustations on our @alifornia
Ls s similar to plumila Carpenter,(not Hanley) and seems to be without
te ue describe it as a new bain Perhaps both occur here. We
Wiateati nn
i. and other oy shells ‘a8 well, as stone and shale. The b frame alae
> is not known to us but we have dredged it from as deep sh a fathoms -
ere * and oe fathoms off Redondo Beach, Calif. ( meen)
Aa
Boe. a “bwisted.® ¥
nga ( Myoforceps) aristata Diliwyn,1817.- La Gotie Gen Diogo Cos,
to singe Also atlantic.” ‘G Dall). Johnson ‘lists it from the Atlantic
é Co lecting data: We Haws) specimens from. the Caved at La Jolla, Calif.
Mgt ao: L chal sin this cata not uncommon ’ on Deadman’ 8 Island,
abhi Dall, 1916. e ( i oreieaal dest 5, Litho haga attenuata
Dall in Proc. U Be Vol. 52, pp. dents ), terra typical Lith-
as a ‘elean outer. surface; Diberus a divaricate posterior incrustat=
reeps , two crossed conical projections; the present form has on |
semicylindrical smooth appendageof which the distal end is inter~
ned and somewhat separated from the appendage of the PREORATS
the ends being: rounded."
hophaga f leabis) attenuata Deahayos, 1836. M Monterey to Patagonia" ( Datt)
7 Kojererare spare oh
S re] , this: ppeeiee, eeea weet nesies) okeeee., I have never seen a
cimen said to originate in California. allyn Smith writes " Several lots
she collection of the California Academy, of which the most A Sige JO
clan Se8, c bepeeto 5 i daccenmaslle It is not in our fauna."
Genus Modiolaria Beck,1830, Type ( fide St
" Shell Thomboidal, sculptured by ‘two.
area ) of strise, which radiate from he
plate Py netcheas if ae
_ Here we have another depute. Yodigineiy ae
" Musculus Bolten being preoccupied by Thomas Martyn, Mo
place™ ( Grant and Gales). This conclusion has been a c
majority of recent authors,; As Myra Keen " Abridged C e
Joshua 4, Baily Jr. in " West Coast Shells", Johnson |
“antic Gsast", Dr+ Louise Perry, Maxwell Smith and
Atlantic fauna all have accepted Modiolaria. Hov
who reject all of Martyn's work thereby nullifying Musculus Me
leaving Musculus Roding the name for this group. Dall, Bartsc
" Marine Molluses of Hawaii” 1938 state this position as
( Musculus) has recently been considered to be preoccup:
1787, but in our openion Martyn's name is not availab
being non-Linnean." Several opinions on this matte
Banly Jr. ( personal communication June 1944) " I use
had not rejected Martyn. Dall used Musculus in Bull.
-ioleria in his supplement to Bull, 112. Dail, Bartsch |
“lish un until after Dall’ s death, and ef think that - -
oneat U.C.L.A. He accepts Martyn. putes and Haker’ Ha
hever Seen a copy of Martyn I can tell you a little about
is not like that Io} @ aan: and Chemnitze The eee ee
is not TAuneun But it is iubdasthie: to eal we
be that we must accept some of his names and
Dr. A. Myra Keen rejected a number of
i An Annotated Check List of the: aera ong
alsoe few years ago in another ponnenthon aes
from the Commission to the effect that generic ;
~ial author might be valid provided they were binary ( t
but dont lets get technical). Accodingly, pending a de
been accepting Martyn's genera ( Purpura, for example) bi
species. However, one of our students in mulling over t
out to me that part of. Martyn’ s specific names were cle
note Some day I want to take time off to go over to
Stanford's copy of Martyn is stored, and bisiergtet car
we should continue using Modiolarine.””
droyd ( signe dae Kodiak Ide 15 fmse,
18 fms ick ene fms» ( liwis Coll.); Ishut Bay, Afog~_
iisehinbrack Ide, ¢ We ‘Byerdam) 5 Flensburg, Schleswig ( I. Norberg)
; Whalerspynt, Spitsbergen ( 20-30 fsm. clay),1864 ( Hans Schlesh) .
ria nigra obesa(Dall)} jei6. " Arctic Ocean to Cape Flattery" ( Dall).
aria protracta(Dall)1916, " ‘Nunivak Island, Bering Sea to Monteroy"(Dall
from Allyn Smith " “Dali's Monterey record is en error, based on the
fication of a worn specimen of Botulina — I suspect the specs s
only. in the northern faunae”
taTine tyléna record is probably an Sop also. No monber of the
Bx 8 ever having seen a specimen from southern Californiae Reported
0} ge Willett from Umnak Island, Alaska, dead on the beach.
a impressa(Dall)1907, " Petrel Bank, Bering Sea" ( Dall)»
taylori al1)1897. " Yictoria,Vancouver Island" ( Dall).
ing data: Departure Bay, BG. ( G, Willett); DePaaeare Bays Bele
Mr. Oldroyd ( 4, Smith)»
abstriata(Gray)1624. " Arctic Osean to Puget Sound CArcumborenl!
“eenland to New York, 5-100 fathoms ( Johnson).
ig data: Puget Sound( G,. Willett); Punuk Island, Bering Sea,
ering Sea, 8=10 fathoms, Parlof Bay, Alaska 13-16 fathoms, _
ind, Alaska 12 fathoms, Victoria, B.C. 10 fathoms ( Lewis Colle) :
Wed. Byerdam- Izhut Bay, Afognak Id., 1922 and Elrington Id. 1924,
am on kelp holdfasts, Hinchinbrook Ide, Horvere 1936, Chatanga Bay
, Yega Expedition 1878. Poa
corru een) 181, " Aretic Oacan to Puget Sound. Ciroumbor~
Greenland to North Carolina 2-100 fathoms ( Johnson). |
{) We '\
pecrtins data: Pa, 1982 ( Wade peprdta)s Tromsosund ,. Sa
ni 1940 Poaldeted ge Wede yaeea also Elrington ‘Id. and Evans Idse, |
Pr: William Sound ( Byerdam).
Mod olaria aa Eada Ste George Island, Ey ate Sea" ( Dall).
‘Islan ron dhe Oldroya collection ( A. ‘Smith) »
peat ria. eee. “ Circumboreal ? " Puget Sound" ('P.P.C. ve
| Li). Solliect data: Tromsosund, Norway,1935 ( I. Norberg) ( Eyerdam).
muda(Dal1}1697. _" Bering Sea to Forrester Island, Alaska" ( Dall
ig data: Craig, Alaska in 20 faths. ( G. Willett); Frederick -
Maes Colle);
ene Gbsnolta. Brown, 1827. ‘Type ( probably by monotypy) » Mecewuc decussatus
Mon : 34908. ee ate ;
POW gaat oblong-ovaly ikea tbeeooda: beaks obtuse, slightly tur=
ened to one side; hinge destitute of teeth, but with a flattened, horizontal
“slightly crenulated plate on ‘one side of the hinge in each valve; right walve
with a triangular, horizontal, projecting, reflexed plate, end the left one
with an oblique plait, both of which are a little crenated externally.( Brown)"
Crenella decussata Montagu,1808, Bering Sea to Puget Sound and south to
San © ani also Atlantic" “i Grant and Gale); " Greenland to North
Bay ,Knight Telaud, npleis dhol ga .
Alaska, dredged.e1936 ( I. Norberg ) (
Grenvaes divaricata Orbigny, 1645. " Santa EB
est Indies. ( Ball); " North Caroline to the W
In a preliminary note John Q. Burch wrote the
several different opinions. “ Crenella decussata Soaks make
confusing group to me. Grant and Gale, 1981, state that ‘divaricata.
a tropical race of decussata.e These small peetes, of area are ve
in mud. We have specimens in any number from off Redondo! Beach, Catal:
San Diego,Coronado Islands, Ensenada,Mexico etc. I have on many oc
attempted to separate decussata from divaricata with | poor success 11
of divaricata " This little shell is not to be distinguished, except by
nearly white color, from the young of Ce decussata of the same size." ¥
question is very simply this.» What do you propose to do with a thousand of :
them coming. up in the same dredge haul and nicely mized from white to yellow
to brown? " This note brought the following comments. " Small southern race
of decussata" ( George Willett). The following remarks came. from Allyn Smith _
"C, divaricata= As we have coneluded, this is only a Gulf ane tiger
species, not found in gl odie It is distinct from decuss
mens rn Redondo are probably decussata." So if ee. 8) (ie het ar cuted
are clearly distinct, it is provable that the Burch collection does not have _
a set of true divaricata, i a
Carpenter made the following comment in his o ‘Ons ueaa of the Wes
Coast of North America" 1863 "Cc. decussate Mont. Besant. acocras wich
Atlantic specimens".
in stydying this group we became intercated in a southern. species,
inflata Carpenter, 1864. We kmow of no record indentifying ‘this species a.
part of our fauna, but. since we had some difficulty in getting the original ay
description we shall reproduce it here for the convenience of any member =
interested in checking up on it. The original description was in Latin with a
a note as follows: " Crenella inflata Carpenter,1864. Ann. Mage Nat. His st
sere 3, vole 13, pe 313. "? C. testa valde inflata, minuta, albida ubrhonbo=
ideo-orbiculari; diagonaliter parum producta; marginibus subquadrangula
rotundatis; umbonibus prominentibus, valde antice intortis; tota super
ut in C. decussata sculpta, costulis crebris radiantibus aequidistan
hic et illic aliis. intercalatis; lirulis adiunictoiiae sasha dante
crenatis; cicatr. adduct. cubasenevieee pioke acetyl Bitis. eee ae
alte .09 poll." “ Located provisionally in Crenella from its Likes
C. decussata, but with peculiarities of hinge and adductors which appro:
Nuculina on one side and Cardilia on Leihcg ok Type locality: Cape: ‘Sa
Collected by Je Xantus. =~
The following comments on Sielate: were rebelvea.: Kc this sounds mo most
Ce. ds divaricata of eny of our California species, but, being ‘from Cape
Lucas, it may be entirely different.” ( George Willett). ia Collected »;
Adams, no location, Pe 39" ( Dr. Joshua Le Baily Ire) Bete ly dN i) af Sai
Carpenter's document "A" contains the iMate i atsibme ery ares
( An aberrant form). Algo Panama, C.Be Adams", , ve ay
Crenella leana Dell, 1897. " Aleutian cpio ee oaetward 8 to maaateton 1 Is
Alaska” ( Dall)e aN We:
ad Le yee 10-25 fathoms, San Pedro, 10 rae: Catalina Island, 30
‘hol Los. Coronados Islands, 20 fathoms: of. Ge Willett); Unalaska, tlluldiuk.
ay, dredged, 1932 ( Wed. Eyerdam).
risea Dall,1897. " Bering Sea 0 > Sitka, Adeawn" ( Dall).
eting data: Forrester Island, Alaska, 30 fathoms ( G, Willett).
otundata Dall,1916. " Santa Cras Island, ‘Calif. in (155 eathoma¥(Dall)
BG [ARSE IC ICRA OR IO AG a Ne ; ;
ue er heat’ ona and Additions ae
us dunkeri Reeve= " The Academy now nee sete of Mytilus from ‘La Goris
e) ‘and from Anaheim ( E.P. Baker). It has a singlé specimen of dunkeri
, which one with the Pears figure quite oe aha The two shells
Gunk 2 ithe southern. Galirarnia anol a are not this speciess Comparison
of the. atter with Me edulis. gallo rovincialis from the south of France
_ show Reeerrences whatever. ie the two 2OGE were mized there ae be no
Pic depen at Piasiore! Sieteny in i haayey Bay and Drakes Bay. We have
no Jap: Mytilus: at either place yet in spite of the fact that Paul
it a the: Fish and Game diitiasta ean) has been watching for ite" t Allyn
a _coralliotis Bory, 1944. _Ercooeaang of the Metacological socteke |
mea ohandyas a hauled up by Mr. Shelton, fisherman, cel March
: 366 oo Cate Now 8435 deni oy remnants of. holotype:
é ftv es) Inbar ~ t
pipes surface. of the lett yalve euaty rather. than laminated, attached
ety ebaut the umbonal cumeiedl of the right valve, 2 and with the saa
This ‘species should be atidied in connectton with Dima: Revie
ys which we discussed in our issue # 34 p lO. |
bees 3
(a
woe
Family J PERIPLOMATIDAB
Senumacher. :
"Shell oval, very ee ea doeiutiatee ood nacreous; &
deepest; posterior side very short and contracted; hinge with an
spoon=shaped process in each valve, and a small triangular ossicl
-nal rib proceeds from under the hinge to the Ligabee sede
lunar; pallial impreseion caren Siphons long and ‘slend
Periploma planiuscula Sowerby,1834,. " Point Cancepcion, Calif
(Dall) " Negritos,Peru ( Olsson, Naut. 57, pe 128)" Dall listed
Pedro southe Type locality: Isla de Muerte, »Guayquil. eal arg :
is a much used name in the synonymy of this species. ~ ya ae
This is the common southern California Periploma. T
oly just below the low tide line. The shells are washed ir
infreugently still living, but I have never heard of a cc
littoral specimen in what seemed to be its natural habitat
very abundant species in the off shore reefs along the
to Huntington Beach as it is inca) ponsapty to ig: a.
hundreds
e Toatity:, Late 68. aeereeas: aT moreno a 8
Vane 168,53' west in 32 fathoms, fine mud rot bang, A a
Arctic Ween and known to range to MacLeod a ao
Harbor, Montague Island, Prince William Sound, i gies)
Alaska, in 25 fathoms ioheda bottom. | he Ane
Periploma, discus Stearns, 1890. Woriterey, Calif. Oe La Pasay “—
Tower Calif. The Hopkins Marine Station have spec= ; aM
-imens dredged in 20 fathoms in Monterey Bay, and
_HeNe Lowe listed it from the mud flats at La ~
Paze Dall gave the sap as San Pedro to :
Die
iia Collecting date: San Pedro Harbor, 10 fd, mud
( G Willett); off Redondo Beach in 50 fathoms md
( Burch); in 1915 both Mrs. Eshnaur and: Bee >
Chace reported finding this species in some | !
numbers. after a storm on Terminal Island and at Seal Beach
Subgenus Halistrepta, paid, 1904. Neubaten uy, De 123. PS ay
"This species is, we believe, the first Periploma known to p
«-dulated sculpture, and bears to those of the ordinary type
as that of Cyathodonta to Thracia or Labiosa to Ractae” _
Periploma suleata Dall, 1904. Known only from the type locality,
Bay, Calif. This species was apparently described from one
in after a stormand found by Mrs. Oldroyds a .
The only other record we know of is one Ii dai dredged off an
by George Wittent in 15 fathoms. eae Won
An interesting little note is ak mead from Dre Joehua ee
ue
p Periploma is neuter. Should be P,. planiusculum according ‘to Be
This is one. for the Latin scholars. It is not the common usege
ase p 13
324 (diets 8 ‘weil Nate Oe S25 pe! 347). Type
nvil 327, Man. Male, vol. 2,P. 660), T. corbuloidea
ote by Dr+ a. Myra Keen " Unless this interpretation of the
under analogy with the case cited in Opinion 6 of the Inter-
mn ules, the type of Thracia mst be I. pubescens Pennant, by desig-
n of Anton, 1839. Blainville in 1824 PEepouee Thracia with two divis=
‘A and B, for which he cites as examples "T, corbuloidea" and " T.
Leach", respectively. In 1827 He says that division Bo should be
i could be construed as fixing the type in a manner acceptable
6) 6 of the Rules." Note that the author of eee is not
L Bate ( Gaited ly the ehty by nontnet with Sach gener
00mm in length or more." ( Grant and Gale).
racia 8eSe i
Thracia) trapezoides. bonees, 1849, Craig, Alaska to Redondo Beach,
ant iain ' Fossils from Northwestern aner fea? y in de De Dana,
Pie. 2 Original description reprinted by Dall in U.S. Geols Survey
Paper 59, 1909, p. 153. Type locality: astoria, Oregon,Miocengs
Grant and Gale give the range " Puget Sound ( I.S. Oldroyd,1924);
- Graig,Prince of Wales Ieland,Alaska" ( G. Willett)". However, Dr. Myra Keen
| A pe Check List” brought the range down to Monterey, Calif. giving
| oa Hy range abuthinerd and would make Bret Keen 8 range reas 54-566
La The reason for discussing this species first is beacuse according to —
Grant and Gale, it is very close to T. corbuloides Blainville, the type
species. It is well figured in Oldroyd "Marine Shells of the West Coast
Sf North America" and also by. Grant and Gale, 1931.
It is a common species in the Timm's Point Pleistocene of San Pedros
Dall | mentioned this species in writing of Thracia curta Conrad, " The
_ Conrad isa more elongated shell”. Grant and Gale
ey ‘con ane this as 2 means of differentiating between Te curta
and T. trapezoides. " The imperfection of the right beak is typical of
-"Thracia”™ * Imperfect right umbones due to contact with the left beak."
Thracia ( Thracia) curta, Conrad, 1837. " Icy Cape, Arctic Ocean, Bering
> South to San Diego, Calif. ( Oldroyd); San Hipolito Point, Lower Calif.,
0 ( in Hemphill collection~ Jordan); to Punta Penasco, Sonora,Mexe
( Lowe- Trans. San Diego Soc. Nat. Hist. vol.s8, no.6,1935)( with note from
Dr. A. Myra keen on the Punta Penasco. Record w? Corrected range: 2s~Tl. I
: also found it there." ;
Vi This species is not a common shell put has been taken by most Littoral:
collectors to some extent. Our southern California specimens are quite small
by: comparison with ‘Specimens of the same species from the northe In fact,
- it would seem to be indicated that perhaps some of the northern records for
this species should be reexamined for possible misidentification. The speck’ s
ke usually taken in crevices and other protected places. Our experience
has been that it is very abundant for the species at San Onofre, Calif. in
he rubble Feed at minus tides. We have also eames ios it from many other —
Pr. Wn, Sound, 1923, aredeaee Hinel inbr
Thracia ( Dieapta) beringi Dall, 1915. WW Borie!
and south to Sitka, Alaska” ( Dall). ‘Departure Ba
Sound ( Oldroyd). Type locality: Commander Islan .
Collecting data: Wislow,Unataska Ide, and Atka Ide, 1952= noe co
Thracia ( Thracia) challisiana Dall, 1915. Wi “Forrester Island, »
Gulf of Georgia” ( Dall); Keen “ Abridged Check List" gives the
and.a note from Dre Myra Keen " Collected at Montere » Cali feb by
Gordon. Oldroyd also gives Monterey. | i
Collecting data: ‘Craig, Ketchikan, Forrester Teland,dlasks n
( G. Willett). ne
‘Thracia ( Thracia) diegensis Dall,1915. " San Pedro” Ba
Bay” (Dall). Type locality: “Ban Sahu ‘Bay, in y: to 8
very abundant" ( Dall). a
‘Our collecting. experience has bee to find uy:
rare. We took it from the mud around the bridge piling
and later dredged it off Bpasnods Nastse in ive uo de Tn
35 fathoms. ( Burch).
pending further study, Several of the ausbe oeebee
«enothaerus vbllosior Carpenter that are certainly
have been calling ortee Several of the members have mad
as Mr. George Willett " Same as -Asthenothasrus Fife or Cary
Aethenotheerus .
Note from Dr+ Ad. Myra Keen regarding the Mare dav
Genera” crudely traced above," “The figure in the P
from U.S. idk ange) ‘Museum and is of the hetphreey
15) ; ;
, Cyathodonta eC
uivelved oleic) hinge with
18 n prone of Thiack as aoe, the ae usuage has been to consider
Gyathodonta a distinct genus and there are other differences in additiot
_ to the undulations. Grant and Gale state " This imperfection of the right
beak is typical of Thracia SeS. , but Cyathodonta has an entire right beak
a but @ small eroded hole on most specimens. The ligament. of Cyathodonta
nternal on a definite ehondrophore, while thé ligament of Thracia corb-
-euloidea and Thracia trapezoides is external". A note from Dr- Joshua Le.
es y Jre on ‘the genus VS. subgenus matt er “ This is a matter of personal .
taste. I think we have too many genera, and would make Cyathodonta a subgen-
7 aes But probably | most people would agree with you.' ' We are pence to
_ give it generic standings
be thodonta undulata Conrad,1849, Monterey, Calif. ( collected by Mackenzie
Gordonend recorded by Dr- ik Myra. Keen) to Tres Marias Islands, Mexico (
record a Strong and Hanna).
‘Dall ( Proc. U.S.NsM. vol. 49, pe 444, 1915) gives the distribution
ve of this, the type species of the genus as " La Paz and other localities in
Rees the Gulf of California". Then in the same publication on page 445 Dall des-
ug “<cribed. C. dubiosa and C. pedroana. Conrad did not figure the species in
his original description. Grant and Gale, 1931, state that southern Califor=
snfa shells fit Conrad's description of undulata and " we do not believe
me) that. the distinctions Dall has used for separation of dubiosa and pedroana
8B full Species are significant." So Grant end Gale list Dall’s species in
the: ‘synonymy of undulata as the only distinct species-on the California ©
coast. The preponderance of oponion seems to favor this conclusion. Note
on the matter by Mr. George Willett of the Los Angeles Museum " Cyathodonta
aes Con.( plus C. dubiosa,plus C. pedroana Dall)." Dr. A Myra Keen
oan perconal commun. July 1944) " I have compared our Gulf and Lower California
- specimens with San Pedro and San Diego material and am ready to concede
that only one biologic entity is involved. The size and position of the
‘pallial Sinus is variable, as are outline, convexity, and sculpture. The
*/, name, of course, will be undulata." BeRSeor s there are those who disagree.
- _ A note from Dr. Joshua Le Baily Jr. states " In 1932 Grant told me that he
Row considered undulata and dubiosa distinct,and that da&biosa alone was
found in Alta California. I would. follow him." Dall states e8 that wee
from La Paz etc. " The pallial sinus is rounded and high, reaching
pay from the beaks” , and for both dubiosa and pedroana patlial
‘sinus is not so high relatively and falls short of reaching the vertical of
the beaks". Dall in Bulletin 112 gave the range of dubiosa “" San Pedro to
San Diego and the Gulf of California, thereby overlapping his range of
undulata. In the description of C. pedroana Dall stressed differences in
shape anf sculpture in comparing With dubiosa " more pointed behind" " plaits
_ are more numerous: (25) jnarrower,more close set, and more regular" " reach the
_ posterior dorsal margin", Pedropna is described as a smaller shelle
a Orcutt in his " Mollusean World" and others have listed Cyathodonta
licata Deshayes from the California coast. Grant and Gale say that plicata
'§ more elongate than undulata. However, Dr. Myra Keen ( Per. Comm July 1944)
_ disposes of these records as follows" C, plicata ( Deshayes) was described
without. locality; afterward Deshayes attributed it to West Africa, but haber 3
: authors have identified it as Indo~Pecific,Caribbean, ote. atce ".
- Subgenus Pandora s.s. " Right valve with two cardinals; left valve wi
Genus dathonsteeene
"Shell like a Thracia » hin
a pit under the umbose" ( Oldroy ON ae
Asthenothaerus villosior Carpenter, 1864. " San Pe
Lucas™ ( Dall). Type locality: Cape San: Lucas, Lowe
As stated above in the discussion of Thracia d: 2g
the members are confused in regard to this genus. It is €ither e
-.elose to Thracia 8.58, or else the sets in local collections labell
-othacrus are not that genus. A 4 further Fanon must be made, et fer,
information is on ) hand. Eg
on
Family PANDORIDAE Rae
‘Genus Pandora Bruguicre,1797. A number of authors. Neate Dell. an | Bull.
112 and followed by Grant and Gale and others, have given the genus Pandor
’ Hwass in Chemnitz,1795. Dr. A. Myra Keen ( Per. Comm. duly 1944) * Until -
- @ ruling by the. International Commission has been made on Chemnitz, ati
better not to accept his.names. Therefore the citation should be: Pandora
-Bruguiere,1797.( Encycl. Meth. livr. 2, Pe 250) ( genus withoub SPOGIS a. |
type fixed by Lamarck,1799-~ Pandora peru aad ( Linne)." This is used
by Tryon, Oldroyd etc
-" Shell inequivalve, thin, pearly theite; wadveH close, attenuated wariend Be
right valve flat, with a diverging ridge and cartilage furrows; left valve |
convex, with two diverging grooves at the hinge; usually no ossicles pallial —
line slightly sinuated, Outer layér of “regular vertival,prismatio ells®, Bik
one obscure cardinal or none; lithodesma absent; right valve with feeble io.
_ eoncentric sculpture." ( Maca Be cin yp ieot is not bikebipred: on
oe California saat ; ' is
K. filosa. taeter. ae
WTike Pandora 6s., but with a Pittindendal right 5 valve with fine but ite
spaced and somewhat irregular radial striac." | Pee:
- Pandora ( Feeds? randis Dall,1877. " Pribilof Islands, Boring Sea, to
Siletz Bay,Oregon.” ( Dall). Type loodlity: ‘Unalaska. eee
“recognizable by ‘its large Size, curved dorset ieee and lack of rostrat~
eion" ( Grantand Gale.) : ee
Collecting data: Wrangell,Alaska, - 50 fathoue in md. A Ge Willett); 8
Juan Islands and Victoria, B.C. in sandy mud ( W.d, Hyerdam); ‘specimens aa
upto 45 mm. in length, Orca, Pr. Wm. Sound ( Norberg) ( Eyerdam).
Pandora ( Kennorlia) forresterensis Willett, 1918, " Forrester Islén 1
5O fathoms ( Dali); Ketchikan, 20+30 fathse, ( G. Willett); Prince @ Vie
18 fathoms, Frederick Sound, 12 fathoms ( Lewis), et nati
Pandora ( Ss glacialis Leach,1819. " Arctic Ooean and south to Fuca
Straits; also Atlantic” ( Dail T), On the Atlantic " Arctic Ocean, Gul ae
St. Lawrence and off Martha's Vineyard, Mass. 45=100 faths." f John my ae
Type locality: Greenland. " ... the right valve has two or three Bee eeeaer
radial’ plications and a broad suleation ventral to them” 4s Grant and Gale).
Collecting data: Storfjord, Spitzbergen..5-10 fmm. clay ( Byerda mie
Pandora ( Kennerlia) glacialis euteaenia Dall, 1915. " Port Etches and ea
-ward at Sitka, Blaska,” (Dall)e " «ee a more rostrate posterior end
averaging larger than the typical form." tate a ne
Pandora> contisned ie next issues
f ; k felon; ae ae Sea.
eas, Lower ae. Mexieo 5 apecaes
gon boreal margin is Sbprecimneely Gupat okt. The posterior
efinitely attenuated into a rostrum! ¢ Grant and Gale).
ecting ieee! Off Redondo Beach, Calif. in 75 fathoms mud and off
Mexico in 50 fathoms mud ( Burch) ; Kodiak Id.,Alaska in 15 fath.,
lliam Sound, 18 fathoms ( Lewis) ( Willett); Craig, Ketchikan, Alaska
fath., Newport Bay, Calif. in 30 faths( Ge Willett); Smith's Cove,
Wash. Harbor in 10 fathoms mud,1919, Izhut Bay,afognak Island, 1922
homs mud ( W.d. Eyerdam), Monterey in 40=202 fms. ( A. Smith).
‘( Kennerlia) bilirata Conrad,1855. " Prince William Sound,Alaska >’
autilus ve51, pe 101)" to " Point Abreojos, Lower Salif." ( Dall).
his Speeics differs from P. filosa by the rounded posterior margin,
hich in filosa is rostrated. The beaks are also nearer the middle in bilirata”
Collecting data: Dredged off Avalon,Catalina Island 8/36 in 25 fath.,
off Monterey, Calif. in 40 fathoms 8/37, off Redondo Beach,Calif. in 25 fath .,
off Ensenada ,Mexieo in 50 fathoms ( Burch) ; Ketchikan, Forrester Island, Alaska
20-40 fathoms ( G. Willett); Drier Bay,Knight Island, Prince William Sound, —
athoms mad ( W,J. Eyerdam); off Monterey, Calif. al ani ini
i ,clay ind gravel ( A. Smith).
Pandora Kennerlia) granulata Dall,1915. " Santa Barbara, Calif. to giana
“especially abundant at the type canna on A muddy sbahcts a in She:
f La Paz, Lower Calif." ( Dall). 2
« closely resembling in form bilirata,; but tee smaller, more tren
ud of a greenish tint, with the base and dorsal margins ‘more nearly
ces the elevated lirae of the posterior dorsal: surface delicat~
eting hetas Note from Allyn: Smith of the California Aoademy " No
» except that we question the California bl ccbhalig No member of
ports having taken it,
Hetorsel du Dali, 1903. Type ( by original cosignation), grec
rt RoR cardinal and a produeod bon bntae eeaivtel ridge ;
or ridges or teeth, eodine in front of the anterior page)
ns present."
pose) punctate Boheed, 1837. " Vancouver city oun to the Gulf
is specics ry epenaily recognized by its strongly. ee) ( concave)
dorsal margin and the small punctations on the inner surface of the
i Grant: and Gale.
pea ieetite data: This species ‘4s found in shallower. water than any others
genus and is not infrequently washed ashore. However, the habitat is
lowest tide lines. We dredged it in some. abundance though. immediate=
veel ade of the ethene Monica breakwater in what ee not
‘dn 20 fathoms. ( ic nice): Phayoaust, Vancouver Islend, ‘eritisn
a Wade appa
Pandora
; . Corres tions smohddttons. (7 0) ee
The following notes | personal sommunidaekens guly 22,2
us ather we had gies our article on the ee Botult.
to the same conclusions reached by Dre Hertieig aa follow
" os ( Monterosato ( Naturalista Siciliana, vol.
( not regoriella; the name comes from its gregarious
Modiolus barbatellus Cantraine ( -- M. petagnae Scacchi) .
af
related t o Hotulina D Dall, but. pee a somewhat weaker peceet
whereas e otal es it is denticulated; possibly, Botulina
a subgenus of Gregariella. ;
Lamy( Mourn. de Conch., vole 81, 1937, ppe7, 33) gives di
discussion of this group. He places it erroneously, at ‘believe,
“laria (=- Musculus) as a subgenus , cone ae
ciella .- i Nae
e have at least two species of Botulina in west Atlantic w
quite different habits: 3 ape
Botulina opifex ( Say) makes a selene: fee, of ‘the neeluts
grains on a stone or very hard substratum, the | J eidacsc eatin a2
with the outer édge of the nest. _
Botulina eorel epee i! aes Lae the. other: hand, bores
in sponges.
It would be interesting to know what the habite oe your Ca iforn:
species is, which, by the way, is not opifex (Say). oe
In regard to the group Hommonye, we are hugs it a8 a subger ‘
genus Brachidontes. " , : PARE Se
been that our Potulina denticulata hee has ane
either mentioned. Our EpeOLnel ae Solitary. T never
are cadence nestlers or borers. It is ius GHEE. "hey ere 1
gravel, Pooky or shale bottoms but hi Senet. and cleans
has dredged a great many of them. Mre Willett! 8 Yomerionce the : Wi
( John Burch). ieee
Vie:
n AN ougeve ovate to ibertienior; or sometimes irr~
€ gaping, especially posteriorly, usually thin, white, yellow= —
s ames submedian or anterior. The surface is covered with —
=: is present, which may ihe pinched up into slender radial threads.
; is Anterne) and lies in a posterior groove and has an clonepeas
y pes a Maatartor mecle scar ‘slightly larger than ‘the Anterior one"
ssch, Rehder).
' oe n “eed aad Cabelas type Mya. striata Monta gu== Mya norvegica ( by mon-
Be {
“e 0 ‘Thin, elongated , with fine radial sculpture externa-
cum inconspicuous, usually with more or less adherent sand;
ilateral.” ( Dall 21903) —
inction between the subgenus one SoBe and the subgenus Allo»
f: aat the latter has strong cae paaees ene GE ce Lyonsia
riata Montagu,1815. " Bi rausboresl: Aleutian Islands to
de Type locality: Atlantic. |
question about the exact identification and separation of
ome. of the specimens | some of us have been labelling gouldii
| identical with this specice. If this should prove to be true
e extended southward past San Pedro, Calif. —
ita: Kodiak Island, 15 fms. ( Lewis); Piteghter talsnae ia
( G. Willett); Illuliuk Harbor, Unalaske Island, 15 fmse
yerdam).
-arenosa Moller, 1842. ” Gircumboreal. Arctic Sea to Japan
‘on the west and on the east to the Aleutians and Kodiak
Dall). Johnson gives the range in the Atlantic . Greenland
13-60 fath."
data: Cape Schelagskoi, arctic Siberia, 12 fms. send ‘Vega
awe e Eyerdam).
_Dall,1915. San Francisco Bay south: to Point Arejon} canon
7 extended to Tres Marias Islands ( Strong and Hanna).
Ota new name anes eg Dall to nitida ohvanee Type. locality:
Teferoe some of our records are included subject to ae
tas Dredged off Avalon, Catalina Teiand in 25 fathoms 8/1937,
30=50 fathoms 1937-41, off El Segundo in 35 fathoms, off
if fathoms ( Burch); Catalina Island 30 fathoms, San Pedro
Ge Wil tt)5, Meptar ey: Calif. records 5<15 fathoms in send-rare,
leiitoenion Conrad,1837. " Puget doundste) Manuel's Lagoon,
Grant end Gale, 1931); Keen " Abridged Check List" gives
vh would take the panes up near puntos aay Type locality:
acalif., —
n ‘data: Our common California species taken in mad ‘bottom of all
ays such as Morro,Mugu, Alamitos, Anaheim, Newport etc, The bathy~
Saetete range in our. aioerienan goes” as ‘deep. as at
50 fathoms off Ensenada,Mexico, 25 end 35 fathoms o dond ac
ealina Island. More common in sandy mad bottoms( Burch); Craig, Ketchi:
Forrester Island, nae 1540 fms. (. G. Willett); Elliott Bay, Seat ae
10 fms. mud,1921 ( W.J. Byerdam). — :
Lyonsia ( L bata’ californica haroldi ‘Dall, 1915. ieee Bay, Calif. - 0 Sen
Francisco Bay. Keen ™ Abridged Check List" gives: 35=58 which is about as By
stateds to Tomales Bay, Calif. ( Ae Smith).
Dall certainly gives very little desert pticd! to ie" 3b variety wi
nearly cylindrical form without arcuation from San Francisco Bay" Us
It has been our custom to label the shells taken from upper Morro Bay ;
with this name. They are much larger than the typical californica averaging
perhaps an inch or more in length and seem to lack the pearly appearance of
the typical. It is probable that we have the same thing from Alamitos ve
and other southern Salifornia sloughs which would bring the) renee fa to
south. ( Burch). | ;
- In a preliminary discussion of this species John Burch made: th fo ing
statement which brought up some interesting opinions and a decision which wi:
have an effect on our future works " Such things as haroldi cause me t
if there should not be a custom of indicating 1 mere form caused by ‘th
~itat rather than being distinct such as L. onlif. var. haroldi Dall :
of writing it out as a subspecies. Of course, this may be of agate
easily distinguished from other shells of the same genuse"
In answer to this Mr. Allyn Smith sent in the following note * |
is true that this is, as you call it, a " situs" form, found in shallot
in muddy pays, it is just this sort or a Sti fercHt environment that or
7
good subspecies. Your thought to use the tern " variety” for such seoTogioal
variants is something sabicslyarsy steer. away ‘from, for tro reasons~(1) at ad
be a variant that is SEL aati nee in position to a “subspecies ee the ‘pie aut
-nomenclatorial scale, in which case it (2 ) leads you: into quadrinomials,
which I believe hinders rather than: helps, and is cumbersome, at best ‘Man
older zoologists used the term " variety® when they really meant " subspect >
The reverse was also true, as you well know, with the result that 41 ome
insfences it is now difficult to tell just what they really did mean. Cons¢
“quently using this line of reasoning, I feel that color varieties ha eo
real taxonomic standing in a faunal that, and Mac and be ssh put ‘then | 11
synonymy in our Monterey paper, " ae
This matter was discussed in open ahha of the elt and the ¢ f
was to place all color forms and minor differences in the synon wi
Lyonsia ( Lyonsia) californica nesiotes Dall,1915. * Catalina and re onado
isiands, to Magdalen Bay" (Dall). Type locality: Catalina Island.
- Dall's description ".. a very thin, smaller, and translucent f rom
| Catalina and the Coronado aioe dain the aes bh ‘olose to the eon
ena", ;
In a preliminary note John Burch stated ” We ‘han deedena
all around the channel, El Segundo,Redondo Beach,Santa Monica ete,
or might not fit such a description. So far as I know it has never
“ured anywhere." Mr. George Willett commented " This and all pr
be forms of striata, or, with exception | of striata, may be forms
“nica. Catalina Island, 30 fathoms", Mr. Allyn Smith writes)” in Mi
the Academy material with no better luck than you haye in ma
that would be satisfactorys We would put this subspecies iy
with true californica.” *
Our disposition until some | student can make a careful study
is to place this in the anon gay of the ba ise qk
pugetensie I Dall, 1913. w ‘Chimie Bay, Maske to Puget Sound
Abridged: Check bist" gives” lat. 42055 which would be from
ty,Calif. to Forrester Island, Alaska. Type locality: Guest, 5,
s is the ead cies ic cpbabs yeti ‘species.
Shneting oe Prince. William Sound, Alaska, 18: fathoms ( baie a
Afognak Island, Alaska, 10 fathoms, 1922 ( W.d. Eyerdem),.
Allogramma Dall,1903. Typeb Lyonsia formosa Jeffreys ( by orige desig.
ge foot." - Dall, _ ate
Rey
: PaGodonna Philippi, 1645. Archiv. Ain Naturgeschichte, yolsll, pte 1: ‘Pe
Type ( by monotypy): E. euiienite Philippi, 1845 ( genotype figured: in
: Patel, pl.3, figeld, “y
* Testa. bivalvis, peranaeeeua, inaequilatera, epidermide crassa westita,
epee: edentulus; a eae. ( oe Han internun, in el)
Ne tire) agers denueke Dons are of interest becnube Entodesma was —
considered a oka by Mrs. os and others. as! no descr iptions were
ane Surin Conrad, 1837. “ In sponges, Vancouver Island
YT Dall). Keen “ “Abridged Check List” gives the range 2055 whieh
the northern end of the range up to Forrester shine pa Alaske.
: Guayaquil, Ecuador.
‘states that the habitat of this species is “ in sponges or the mass
‘i und astidians”. Our experience has been that we have dredged it rather
mmo hie Redonda Beach, Calif, usually in 20 to 25 fathoms in both sand on
a8 40. fathoms aaa also on the shale bed off Del Monte, Calif. in 20.
oms or less. Many of these specimens came up with nothing to indicate that:
p were associated with either sponge or ascidians, ( Burch). In this conn-
god following note from Mre Allyn Smith “ We would like to see the
| record: confirmed. ( l.¢s Puget Sound and north). My experience at
an that it is rare and not necessarily associated with sponge or
Geer collected at Forrester Ieland, Alaska: in 50 fathoms. Mrs
tt also lists it from off San Pedro, Calif. in 20 fathoms".
Im discussion of the allocation of Entodesma as a genus or a subgenus *
oe Willett gives cause for serious thought with the following obser.
tion " Does not. inflatun connect Tyensis and ie aa ? If. so, Ayonsia. paye
be usede ry
we Aouee, because this Geeiee was dexnnthed ¢ as Seats inflata several
embers have sets labelled Entodesma inflata which is Incorrect. Dr.
yra’ Keen -asvises us on Entodesma , ‘As the Greek desma is neuter, the... -
ae ndings= um or ense are required for species that ere adjectives.” :
very short, with a profusion of Suey Seeneies filaments and .¥ Pini ci
x!
Subgenus foriccerae Dall, 1909. Type ¢ ae orien A 88:
The name Agriodesma was originallt used by Dall without ioacetpelo
U.S.NeMe vele 37M 37, No» 1704, pe 284, Nove 1909 exactly as follows: “Ent
( saxicola Baird) Carpenter -- A lodcure Dall,1909, new name” ; i
“Dr. Ae Myra Keen explains the matter as follows. ® | Agriodesma ma Dall isa
nomenclatural orphan but apparently was validly proposed. In the reference
you cite Dall in effect says: “ The Entodesma as used by Carpenter for the
species saxicola Baird is incorrect and I propose the new name Agriodesm
for this species. As you will see by consulting the International ‘Rules, ©
Article 25 and Opinion 1, this is a sufficient indication to validate the a
name. The differences | between Agriodesma and Entodesma are se Ait forenoas, See
between the type specics. — My) jath
Thiele makes Entedesma and Agriodesma subgenera oF Iyonsta , and ais
~tinguishes them thus: " Vee:
* Entodesma se8. Schale ziemlich isin und ‘kraftig,aufgeblasen,Liganont dang,
mit grossem Lithodesma. Ae
"Agriodesma Dall,1909. Schale gross und dick, mit sehr kraftigem Periostracum, a
unten breit klaffend, Lithodesma sehr gross ae a
_ The principal durforense’ between Thicle's characterizations. would seem -
to be in the strong periostracum and the broad gape of Agriodesma.® __ ¥ foes
Fntodesma (Agriodesma) saxicola Baird,1863. " Aleutian Tetands to Cape Colne
ERGs Lower Calif. (Dall). Type locality: Vancouver Island.
“ This enormous rude species, sometimes reaching nearly 6 inches in Mbength’
( Dall). " The lithodesma is very large and strong and is inserted ob: iqueay
below the dorsal margin. The varietal name cylindracea Carpenter was: iv ie
to specimens which had grown to fit borings of Lithophaga.” ( Dall).
Collecting data: Large specimens from the littoral rocks at low tide ‘at
Port Orchard, Puget Sound, Wash. 8/1936, Crescent City, Calif. in the, same et
habitat, also found in the rocks at Monterey, Calif. Fine specimens taken ©
from ships bottoms in dry dock at San Pedro. (. Burch) 5 common ‘littoral aise 3
in southwest Alaska ( G. Willett); Port Orchard, Kitsap Co., Wash, Izhut Bay,
Afognak Island,1922, Drier Bay, Knight Island,1923, Sitkalidak ‘Island,1951,
Dutch Harbor and Unalaska in the Aleutians 1932. This species assumes
peculiar shapes according to its habitat. A specimen from Sitkalidak Island — “a
is heavily encrusted with nullipores. Most specimens are chitinousand crack
all to,pieces when dry but I have some old specimens that were cast up on He et
the beach that never showed signs of cracking.( W.J. Eyerdam). yikes a
Mr. Eyerdam also reports " Near Valparaiso I collected Entodesma chile
-sis Philippi, the genotype.”
Entodesma ( Agriodesma) scammoni Dall saeria Port Simpson, British Columbia
T Scammon): San Diego ( Oreutt)™ ( Dall).
“ This species differs from all others in ite brilliontly pearly: kopetiees |
its oval shape, and its permanently adherent periostracum without radiating —
| eed the original apr ree easteeres, in 1865 have 50 far been obtained” !
( Dall one
Some careful student aod wiudy the types of ‘this apecteas: Montier al eee
list scammoni with a question mark before and aftere Mr. Géorge Willett ha ae
a set so labelled when sent him but they were obviously Mytilimeria. The Sah ‘4
Diego record by Orcutt is definitely questionable. Oroutt states of this find
" One example found with the above species” ahd the above species Pingel ae
is Thracia plicata Deshayes, an even more startling find and clearly not
accepted. If anyone has any information de. pisces this matin we Rene: be
glad to hear of it.
Genus Mytilimoria Conrad ,1837. Type ( by nonctypy), Mytitinerse moteannts
~rade aah As wit sitio feats
" Shell rounded-oval, more or less ventricose, equivalve, fragile
-ed by a thin caducous epidermis; beaks pore, Sieh bane? Fi te
formed of small linear excava : -
ower Gaitfornia ie farted Dall in tuiietin 112 under the _
In compound ascidians" » Dr « 4. Lyra Keen in " Key to West
merican Pelecypod Genera" states under the habitat a Burroughing in
pound ascidians as Amaroucium califor: ~ua." And in a recent note
a he The compound ascidian Was . untified for me at Hopkins
Si Te is not confined to the one ree of ERA A In 1915
( Proce UsSsNsMe Now 2116) " It is by no means certain that
properly placed here, despite its conchological characters. The
However, Dr. A. Myra Keen ( personal commun.) states " As to the
ocating Mytilimeria here, the latest work on pelecypods by
ts as well as shells, the placement is probably correct."
datas Comnon under the rocks along ‘the coast of. San Luis
fathoms ‘always in the ascidian MASSe ‘Also taken, ‘from Bird Rock,
ng Zo county and elsewhere along the southern California coasts ( Burch )3
ext canal of the eee to et cho Island, Alaskas
aka .- Bntodesma
eee Let i
ae ae
a eee re Hf
tL eae a il
known of the anatomy rather points in the direction of Verti~ Me
it in family ‘Lyonsiidae, superfamily Pandoracea, and as ‘Thiele —
Kitsap Cos, Washes ( Wed. Eyerdam); and as stated above Mre fps i
_ Lyonsia ealifornica Conrad i
20 fathoms, shale, off Honterey, Cs
8/1939. This is the species we ea iio
Other than the distinctly different shape
neers See note under gouldiie ie
ba Re Sa
=
ered. ith. a thin yellowish pecldetruci Ligament external. linge
ong or sometimes rudimentary cardin 1 tooth in the right valve. —
early, without a pallial te and with the muscle scars subequal”
ch, Rehder.
bove description is included as a necessary part of a discussion
oup although the consensus of pEAnseH is thet Eoromye ale is not
ad in our a.
on Lemeiton a Dall, 1889, Bull. Muse Comp. Zool., welgiie: 1889, pe 448.
Type y monotypy) termatom a mactroides Dall 1889,
ee - Dall in Bulletin 112, Mrs. Oldroyd in " Marine Shells of the West Coast.
th America” and others used pemmetonye as a subgenus of Poromyae Some
al confusion has been added by giving the date Dermato Dall,1908._
Men Ae Myra Keen A personal communication, July 1944 gives an explane
sion 98 follows and we are following her conclusions. " You will notice
n th “Pelecypod Key that we abandoned Forenye after examining figures of
the genotype, as we could not key out our West Coast description using the
i description of Poromya. The first use of Dermatomya is in Bull, Muse Copp.
Zoole, vol. 18, 1885, p. 448, where Dall says: " cent Dermatomya) mactr=
ve ‘ ides ReSe This fine sportan 6 oho from the Spee form of the genus
ci Donny ‘team of the group. The rlnge is. also remarkably coarse and eae
It was dredged by the Albatross off the coast of Ecuador, in 741 fms, and
ee malty presents much the appeargnce of a large high specimen of Mactra
lis." (Co page 452 Dall gives © synopsis of the demers Cuspidariidae,
sel ‘tecth strong; oral palpi large; foramina of septum Slit-like sss
sinus obsolete; surface of shell granulare
nu. a oT shell not granular; pallial sinus ihe hinge
‘ocala “ 5, tanutconeha(De13)2815 a. Alaska pordieaule to Coronado Islands, in
4 oop Water" ( Da ;
a _ Collecting en Dredged off Redondo Beach in 50 datnons) apparently
ie confined ‘to the north side of the submarine canyon and to rocky bottom, not
uncommon in the Pleistocene of Timm's Pt., San Pedro ( Burch); Catalina
! Island, 30 fms. ( Ge Willett); Montera@y, Calif. records- 66-73 fathoms,
in green mud and rocks, off Point Pinas ( U.S,F.C. Stae 4552); 659 fathoms, in
green mud off Point Sur ( U.S.F.C. Sta. 5699) rare ( Allyn Smith) .
Dermatomya 2 trosti(Strong and Hertlein) 1937. Proc. Calif. Acad. of Sci., sere 4
vol. ee, Nos6, Pe 163, ple 34, figs. 346). Type locality: Costes Bank, off
i san Clemente Island. And a note from Wr. a. Myra Keen “ We have a specimen
eve to be of this species, from off San Diegoe”
buttoni(Dall)1916, " Montarey, Calif. ( Button)" ( Dall).
y records: 581 fathoms, in gd ( U.8.F.C. Sta. 3670): rare. (Smith).
rin, ana ( Dall),1916. * Aleutian Islands to Tillamook, Ore. "(pall
onina ( tatt 1916. " Off coast of Washington,877 fathoms" ( Dall
al ante.
eae
Genus Cetoconcha Dall, 1889. Gear : Hpenete me ‘Dall,
" shell d differing from Poromya proper by the ; ) being alm
external, and the fossettes: diminis se in size and upturned, ‘the exter
song serene in the young; other shell characters much as in Por
( Dall
Cetoconcha malespinae Dall,1916, " Southwest of Sitka, Alaska, 1,579 ttm
own only from the type locality. Wi
‘The only note received on this species is one from Dre doehua! ee
Jre who commented “ Although Dall and Oldroyd both use males: pinae, T ‘belie
this to be an obvious typographical error for malaspinae,” UR
_ However, it is not likely to make a great. deal of Tisforence to nost
us now. they spell the. name of, such an Sxoeedingly hie Auntie Guano ‘fe
Family CUSPIDARTIDAE ; ! ! i ae
Shell small. ,ovate, baekophorie rostrate, ‘Anflated, thin, ‘are bar or gray},
‘umbones submedian or slightly anterior. The surface may be emooth or tat, Fi
“ose, or concentrically or reeteety sculptures, and it is se
and is situated in a groove or fossette which may project from the d
‘ ufone or may be more or. less adherent; a Fetinapene is Bahai =
ae The interior is white, not pearly; the patorien: maerie, prise ay
‘single, the posterior muscle soar double, a pallial sinus is absent Dell,
prereh, Rehder " Marine Mollse of Hawaii", — G id
‘Genus Cuspidaria Nardo,1640, Type: Gus idaria typus Naréo, — “ToLina :
- idate Oriviy by original designation}. we ua | ya ru
u ea Cuspidaria BeSe' ;
" valves smoath or concentrically foebly acu pens cosantte, posterior!
dolined and attached to the hings margin by its pone edges oe b caenidandas
lateral tooth in the right valve." Dall,1903. Pant
Cuspidaria geoctens GeO, Sars,1878.__ Wore San Diogo, Calite, 239 fathoms.
‘ Riso Atiantic. Johnson © Vollusoa of Atlantic Coast gives the range ' " Gul
of St. Lewrenee to Florida, 64#1467 fath."” Type losality: Vadso,Norways .
Cuspidaria ee Ee lacialis Dall, 19134 ‘© Off California coast in deep water”|
us pubescens & apodema prey ree (1916. ® Off Sitke, Alaska, and south to Panama ay,
n deep aac wetce { Dall)» Type locality: Sta, 2859, southwest of Sitka, Be (oe
Collecting data: Rather common in mud bokton 25 to 75 fathoms off Redondo
Beach and in 50 fathoms off ‘Ensenada, Mexico ( Bureh) 5 Parades Isiend, , 50 fm
( G» Willett). —
Cuspidaria chilensis Dall, 1689, © orf Oregon dn 277 ‘fathoms, and ‘sout to .
coast of chile in 1,036 fathoms" ( Dall). | ist
Cuspidaria nana Oldroyd, 1918, Dall in Bulletin 112 listed this. specie
gave the range “ Baulinas to Monterey,Calif." However, the following not
from Drs Ae Myra Keen ( personal comm, July 19¢4) places this” epecics in
another group and is ebbehhdee Cuspidaria nana Oldroyd is a Sphendas a)
It is my opinion that Sphenia globula oe is a synonym. We have Eyie
material of both for comparison.” So we nave. | Bph enia nana 1a Olaroya) with»
8. stellate Dall in synonymy « eM PUL:
Genus Cardiomya A. Adams, 1664. ne a by monotypy) », Neara
" Valves with rediating sculpture, and the fossette more vi
“inent; otherwise like Cuspidaria ses." ( Dall, UPON sii ae ca
We have a note from Dr* A. Myra Keen in this connection as ‘c
“oontologists such as Stewart,Vokes, and others » now Percennen
as a full genus; rightly, it scoms to me.” .
j ;
Tm Aga ts t i
CEL ONAL ia a pl
pe at iC Sapporo) rede, . Base sound. reo Columbia to
a Bay” ( Oldroyd). Type locality~ Puget Sounds ae
Le data: Rather common in about 25 fathoms off celine Island
| Beach, Calif. also in the Pleistocene of Timm's Point, Hilltop
of San Pedro ( Burch); San Pedro, 20 fathoms ( G. Willett); Smith's
attle Harbor, in 10 fathoms mud,1920 ( W.d. Eyerdam) —
veringensis ( Leche) ,1883. a Bering Sea to Kodiak Island and Pan=
Panis Off Redondo Beach, Calif. in 75 fathoms md bottom 8/38
ig and Ketchikan, Alaska in 25 fathoms ( G. Willett); Sawmill
land, Prince Wm. Sounds Alaska, itr dredged in 15 fathoms mud.
ya oldroydi ( Dall),1924¢ In 1.8. ‘Oldroya, 1924, Puble Puget Sound
tation, vole4, pe 33, ple 1, figel3. " Vancouver Island, British Col=
get Sound" ( Oldroyd) to Catalina Island, Calif. ( G. Willett).
rge Willett of the Los Angeles Museum has dredged this species
6 off Catalina Island which is an entention of range recorded
get Sound southward to Catalina,
1lifornica (Dall),1886. " Puget Sound to San Diego, calif.” (Dall).
ty: Catalina Island, Calif.
data: Not uncommon in mud bottom 25 to! 50 esnome: off Redondo
, Burch); San Pedro, 20 fathoms, — Timm's Point Pleistocene ( Ge
ye pl netics Dal1)1908. " Pribiloff Islands, Bering Sea, to Coronado
Lower Calif. in deep water" ( Dall). Type locality, U.S.S. Albatross
: eds: ort Redondo Beach, Calif. in 50 to 75 fathoms md Do eben
Forrester Island, Alaska in 50 fathoms and off Catalina Islaand
fathoms ( G. Willett); Drier Bay, Knight Island, Prince Wms
oms, 1923 ( W.J. Eyerdam).
ah a es “ Cortez Bank, Calif. 60 fathoms" (Dall),
1» Be bai ‘ead Rehder " Metns Mollusks of Hawaii" 1938 use Myonera
eS Cuspidaria, However Myonore has a hinge without teeth,
Cu pidaria SeS8e has a hinge i a right posterior lateral. This with
rences make quite a different hinge and seem to indicate a full
notion. The figures will show this.
Shee i Dall, AO26. " Off Tillamook Bay, oregon in 786 fathoms"
. There has een no Tittle confusion regarding these ta0 names,
uthors | inoluding Dall ( 1903) as separate subgenera of Cuspid-
pine Keen | Hae siehekuane shea ahaa duly, 1944) gives an
‘Adams, 1864 as! Mage Nat. Hist. (7 8Cle 3, Vole 8, pe 208.
r: Le adunca (— Gould). Original descriptionL “shell thin,
boneee poaierlarsy, Haba ta an external ilk Goce i
in each valve . Right alee with two’ aiventay mM
a single primary tooth. Lateral teeth two, strong,-
says the cardinal of the right valve is single and bi ee ek
Reviewing all evidence some years ago, Dr. Schenck and. ve came. 2 to the)
conclusion that as all the evidence we had concerning the genotype ; ‘of Leio re.
is hear say and opinion, and as the type of Plectodon, proposed the 6 aie,
year and possibly prior to ‘Ledomya, is a west coast species, it is more
practical for our purposes to recognize Plectodon as a genue, pending a mon
“ographic study ef the group by. some specialist. The data on Plectodo
paecnccen Sarpenter,1864 ( Suppl. Rept. Brit. Assocs, ps» 638). Dall,
6. Comp. Zool. Harvard, vol, 12, no.6, pe 299) says: " Pl
oe es closely related to Leiomya. It differs in the insertion of th
“age behind and under the beaks, instead of on the hinge-margin. it
in a fossette; in having rather than a true tooth upon the margin,
“like prominence formed by the spiral twisting under the beake of t
“margin itself, upon and over which, in Plectodon scaber, there is :
external ligament; lastly in Plectodon there 18 & granulated surface
in Poromyae. The pallial sinus appears to be ‘about the same in both,
tips of the siphons are protected, in both groups, a6 in Schizothaert
leathery ring, flattened and broadened at the sides. Until recently on
right valves of Plectodon were known, but in 1873 I dredged at Ca
Calif,, in 16 ftms. .. mud, some half a dozen living specimen
enabled me to make a careful comparison with my Neaera granula
no doubt of their generic identity, and even consi idered as specie:
very similar, the intwisting of the margin being less marked in
| gnd the supposed external ligament obsolete. I regard Plectodon
a8 a mere section of peace ass might also ane lade,
of about equal value wit ectodon.” Le AM
- Rhinoclama "“ Dall and Smith” is described in. the same “pay
pe 500) as like Plectodon but without, cardinal teeth; Halonymp
Smith" ( Dall,1886, p. 50 1) has an acute cardinal tooth” 16 Yr:
no other. teoth in either valve, a ‘pall aivan rib: extending Postel LC
both valves. — Be
_ The specimen of Plectodon illustrated in the Peleoypod. ‘Key was conte
-uted by Mre George Willett, who dredged it off Catalina Island in 40 fms
The shell figured by Mrs. Oldroyd ( Marine Shells «.. volel, pl. 54, figs) \
is Cardiomya planetica. One further word on generic allocation; Thiele, makes:
Plectodon” coordinate with Leiomya, both ‘subgenera of Cuspiceraet y
a ea
‘Plectodon scaber Carpenter,1864. " Catalina Island, Calif. ‘to Ban Diego" \
€ locality, Catalina Island in 40-60 fathoms» vara he Sin 5 waif Lae
30-60 fathoms. ‘s moe Pree eb ae
Family VERTICORDIIDAE | ey .
Shell of emall to medium size, ainertitaaiar to. ovate inflated, thin:
or moderately thick, whitish or gray,. covered with a brownish perdostracun,
the umbones are submedian'or anteriorly situated,often with a rather. sonspiee
“uous depressed lunule. The surface is usually minutely granulose, the micr rom
-scopic granules or obtuse spines being arranged in crowded radial rows;
besides this thwre may be more or lesa conspicuous radial ribs. The hinge
line is usually somewhat sinuous and 4s anteriorly ‘thickened, or may hav
cardinal and lateral teeth. The interior is pearly and has two subequal
scars; the pallial sinus is rani aii apeeny or onty spa hho) deraiveady
Bartsch, & Rehder 1938. Ve AGS
Genus Verticordia J. de C. Sowerby, 1844 ( ex. Wood us)
center aia pardsterese hi Sowerby .
a gee pis
die totloniie note ( personal commun. _
Mins this ae " canara D' ‘Orbigny
ne pr
te th CBBe The ope of aeigowttiae is probably rns, by mono t Be
the preemey reference
v3
erticordia ( Tri onulina) ornata(D'Orbi guy), 1846. " Catalina Island, Calif.
: a Bays Riso Japan and the Antilles" ( Dall,1921). Keen " Abridged
t" gives lat. 8-36 which would take the range northward to Monterey,
hnson saa vhs. Vaan ee on the Atlantio | " North Carolina to West Indies,
it a 40 fms, off eat Mexico in 50 fmse ( Burch); San Pedro
, Catalina Island 30 fms. ( G. Willett).
Johnson in " Mollusca of atlantic Coast” lists a eubspecies, Verticordia
aglate Verrill 1884 with range “ Off Martha's Vineyard, Mass. 100 fath.*
lyre | een comments on this “ As to Verticordia caelata Verrill 1862( —
_ there is no evidence in the original sr ora as to how > a
Jia does sida from be ee :
Wyonsiella M. hace: 1872. ‘Type: lyonsiella epyantoote Sarge
hore tne? lunule faint or ones) ossicle sem Ae tay forked
‘The elas Piveeation, of L scatetonaatl has bead ‘ths source ofa abide
different: opinions. ot ip in Bulletin 112 and followed by Mrs. Oldroyd
3 placed it in a family Lyonsiellidae, but with ea question marke
nd a host of other authors have placed 4t as a genus of Lyonéiidae.
1g
Handbuch | der Systematischen Weichtiorkunde, pt. 3), who was a care=
an ; and es emiori ty on thw soft parts of the Mollusca, places -_
Derteatiy/ the Poromyacca, whereas 1 nsia is. placed in the Pandor=
should recommend following Thiele. If this meets opposition I should —
family name Lyonsiellidac.
‘The ee of — alaskans in oe Poleeypod Key is of the holotype"
fa Southwedt: of Sitka, 1,659 fathoms, and
; California in 600 fathoms" ( Dall).
‘1 Me fi
=P ~
ff
: hie : \
al Hay
0 cA
~ kes
Lyonsiella
it here on the advice of Dr* A. Myra Keen ( Per. Comm. July 1944)
Oe EL a Se ee i lea pice eae ama
a Pleetodon Me chy oN GWepagertar 1)
sapeenencnaaresreanl
asthenothaerus villosior Conn eben gas) We
ee ns
ro ee <a
different shell. The Aouderne: has a ghar Valve, Macon y Se oetetas Beebe
Expedition from somewhere off Mexico ( I forget where now) ¢: ‘This 1 k's
_ like a much elongated Thracia curta, with about the outline of ve
young Platyodon cancellatus ( although, of course, the ‘similarity er
there). Tt is about 3/4 inch long. A. villosiot is a perfectly good
“ican, species that probably should not be lie toa in the Cali fornia fe
We also have a note from Dr. A. Myra Keen of Stanford University
“ Re Asthenothaerus villosior vs. Thracia diegeneis: All of the specim s
I have, examined have turned out to be the Yatter. ra have, aie ee A
Museum, photographs of the holotype of the hand used ae
drawings in the Pelecypod Key. ee ae i
Our final conclusion on this problem ds that. all of, our Teen ‘
labelled Asthenothaerus are, in reality, Thracia pees ise
i OHIO CI AE
The following note has been received from Mr. ‘Allyn. Smit
note on Mytilus dunkeri ( See Minutes, No. 36, bottom of p. 6
account leaves the impression that there was a large planting of J
oyster spat in Monterey Bay at Elkhorn Slough which contained Me
The facts are that Paul Bonnot inspected the shipment of: spat (
dunkeri and other Japanese species, and ordered the entire sh! ‘pment 4
-troyed , which nee done. Thus dunkeri ‘has not aahitias been 1 introdt @
into Monterey Bay."
eed who. ‘drew the above es ' ues aoe eea 8
te tooth (X) in the right valve only which fits |
Anite the left veiwee A coe ate is. peer cete
near Beach apectnens have never been “compared with type
.
i 1) Ti Mezaneu 0 ria i Rh) : ¥ ‘ Y
j Ne Eee ty v y ‘ ‘ a bt Wekos
pres Lay yt ae aN ; Ps \ . : : vee
f { wat Ty tae \ , RA 1 ; , i. : x
pes ; Chr) \
‘ ‘ i ’
Y i rat { & * WA
\ ’ Avie ee Fa
© {
NOX
% tale o
“
;
*
{ (
f f
‘
: ; ) 5 }
a ) aa aH
Mi ‘
{ i }
i
-
4 PMs Vil \ | {
fi S bea Rit
Pami ly CORBICULIDAE ~~ | Ks : ;
Genus Corbicula Megerle von Mahi feld jell. Ges, N
5, ptel, ped6. Type ( by monotypy) : Te 0. f
Corbicula fluminea Muller
on the north bank of the Columbia Bier in)
miles east of the little town of Knapton.
supposedly with seed oysters from Japan. not knc
it has become definitely established. _ CVA aC
_ We are uncertain about the specific Sdontistontion ft
and hope to receive further informations
vate oo $59- ps |
d the jirrine Mollusca of. Ascension, Aptana, Atlantic.
i eae “by JeRe aes ‘omlin
me febloring personel Communteation, sie 5, 1944 settles one of our
ame Pecten Mo Osbeck' s book but war work keeps one away from conchologye
‘lly Iam on the British Museum staff in London, but of course the museum
8 closed and has suffered some damage.
Teen, however, state certain points as to the above,
| a ‘Osbeck' 6 work was Pup tesa’ in 1757 and is therefore prelinnean and specu
BS ead, es to prelinnean, names which have merelt hecH cited post 1758,
as Pecten is from Osbeck in these translations. The case which is always
quoted as an example of this is that of Klein's numerous genera, which were ©
| Peventee, en masse by Bruguiere in 1792, but are not thereby validated. )
a Analagously, some one or others translation of Osbecke which is mereaae
Age a ‘verbatim repetition- doesnt validate his names
And now another point.
Many years ago I got into touch with one of the nurses at the Ascension
: sland hospital, and ne her long stay there she pegeanted shelis and sent
m home to ué.
the fauna is very small: I am eeventne a@ list, which you may like to
of 16 20 species which represent the total fauna that my friend collec
ted in a good many years assiduous collecting. I do not feel at all sure that
these 20. kinds ere all indigenous there. They represent several different
fav carbas~ 8. Africa, the W. Indies, the Atlantic Islands. There is a
current which brings Carribbean shells to the west coast of Africa, and sev-
- ral well ‘known Caribbean species are established there. Fissuridea parvifor=
cate is” “exclusively Cape Ge Hope and has probably been brought to Ascension —
‘and 8 Helena on the giant kelp. Several | ‘Species are chiefly Mediterranean- it
TCAs C. luride, and Fiss. nubeculae ies
is a current westwards from Africa Called the Benguela current P
whic oar
et: ns think dhad these wilt ‘be any additions to the list I give yous
‘oe There have been various spurious things brought to both these islands
Be Prom sto East, as they have both in their time been regular ports of call
_ before the opening of the Suez Canal. A'wary eye therefore has to be cast
on any ‘shell which purports to. have been Recent eery. collected on either of
; these islands. —
: ‘Finally I must put you on wae guard about another snag which has come -
up. eka at the British Museum. This is the existence of another Ascension
‘Island in the Pacific, This isle is now more often referred to as Ponape in
the Caroline group, but older writers used to call it Ascension- ‘ee the 230)
_ Sowerbys- and at first I used to be puzzled at the British Museum by obvious=.
Me ely tropical shells labelled “ Ascension Telena", which could not possibly
have come from the Atlantic.
eee is a pity that Grant and Gale have resuscitated the old Osbeok rch
which ds quite untenable. |
Have just. received another of your interesting minutes. jee are a cheat
pees ® aig with cordial cacicainccl in
i Mollusca of ascension inland Atlantic.
: aa i | Gee COMMON.
Thais deltoidea ( Lame)
BSpondylus powelli Smith
Nucula cardara Dall ( p.7)- Monterey records should | read + 4
“Off Pt. ence and Santa Cruze
Eats castrensis Finds { eis)e
‘sand and clay; commone
Nuculana taphria Dall ( p. es Adds B~51 fms. in Mon torey ‘Ba:
7 Yoidta” soissurata Dall ( pe 123 > Th
‘one that shou
Anomia peruviana d‘ Orbigny ( De 3)= Add: cc eant
Co Noe
Cypraea spurca Le -=------- c ia oot
Fissurella nubecula Le _ | ae)
Fissuridea parviforata ( aac’
Harpa rosea Lame
Nerita ascensionis Gmelin
Pisania pusio ( L.)
Pyrene ortbraria ( Lam,)
Strombus bubonius Lam. Nae .
Thais ascensionis ( Gmelin)
Thais fasciatus ( Reeve)
Arca bouviers Fischer |
Hemicardium medium ( Le)
Ostrea cucullata Born eats
Pecten nodosus Le Pe,
PEO EE EE Me cet EN
Additions md Corrections 7 UR Oa ae Aes a
Mr. Allyn Smith sent in some collecting localities and notes which are > adde
here in the interests of completeness.
Minutes Noe 335
Add: fests) any) in Monterey | a
read : $5=139 fia, | Monterey. ‘Bey in cia sey One
Yoldia montereyensis Dall ( ps 13)= For 152871 fae 5 ne bangs
TY question the Lowe and Oldroya records fron 25 and fms. oe Sh
one species. art ic i
Cyrilla minita ae re Pe 13) Add: 50 fms + oft San Diego € FW x
inutes Nos 34- . HS
Glycymeris suibecleta Carpenter ( Pe 4): “da ‘515 fins, Montore ‘Bay
coarse granitic: sands i
Arca reeveana d' Orb gny ( peT) H Laguna Beach, 1 valve ( 808)
Minutes Now 35-6
Pecton arees Dall ( p 14)= Another record: 764-881, fms." oft Sa t
in mud ( USFO Ste. 4428); 1 specimen. . Beane sat
Pecten randolphi tillamookensis Arnold ( Be, “.aa) ~ ‘Another pee
off Pte Sur, in green mud C USFC Stas 5699); 1 specimen. AN ts
Pecten vancouverensis Whiteaves § p. ab Aad tt Lone. ica #: Monter y
on caloareous algae; not uncommone — fs
Minutes Noe 36 .
6039 HH. These seem to be O.K. There,are several pecimens in th
Mytilus dunkeri Reeve ( pe 6)= Shall have more to say on this p !
based on a number of samples from various. sana balances by mate
just received. syed
Volsella pallidula Dall ( pe 14)- Add: 41-142 fms. Monterey Bay,
common. me ihe ae
Volsella diegonsis Dall ( p. 15)= Add: Rock fill at Elkhorn Slough, onte
Bay; 12 gues off Del Monte, on shales Algo, Sousntite and 2 mi. Ne of Jenner,
Mendocino Cos ( AGS). ee a a
Pusey)
cata Gould | (p fe)=) We ponord at com: 15 ‘tne. off daitsren|
forniensis Philiped ( pe 6 ) = Monterey Bay in 8<-15 fms., boring %
“Rave 16 also fro» the Meridocino Coast ( 3 mi, N. of Gualala);
3 use Beach, San Francisco ( We Williams); Duxbury Reef ( AGS).
irenella decussata Montagu ( p. 9)= Adds Monterey Bay, 15-30 fms. in sand.
Hate pe Conrad ( Pe 13)= Adds: Monterey Bay, 35 fms « off Seaside,
ot ene ( pe 3) = ‘Add: Monterey i 10~15 fms. in send; San
cisco ay, 3 fms. in mide .
re. bubtons Dall ( p» l)- Locality of USFC Stas 3670 ie. " Off mouth
a apodemn ma Dall ( pe 12) + Monterey records: 70 fmse mad ( McGinitie);
a. “soft, green md, off Point Pinos ( USFC Sta. 4475), S6f Catalina L.
mya pectinata -( Carpenter) ( pe 13)= Monterey: record: 66-69 fmse, green
ks, off Pt. Pinos ( USFC Sta, 4555)»
lifornica Dall ( p. 13) = Montere occa 34-78 fms. mad and rocks
nos { USFC Stas. 4457,4474,4552). 50 fms. Catalina id. ( He Lowe)
2 planotica Dall ( p. 13)= Monterey record: 40-202 fms, soft green
and sand ( USFC Stas. 4475, 4482,4483,4485), 35 fms. Catalina ( He howe
icordia ornata a'Orbigny ( pe 15)~ Monterey record: 25 fmse , sand, in eo
ay and ©armel Bays; rarés Catalina Id., 50 fms. ( He Lowe)»
ordia ornate eselata Verrill | ( Pe 15)= Note by Hertlein: " Has Al,
ibs an | cel eeetale area". : |
" seteneerenssseteseenees
- palty ASTARTIDAE
Genus Astarte Eke oie. Type, ( by Libssguent. seateueedon, ans oe
Astarte Turide Sowerby, fide Grant and Gale 1931. Type as given in Oldroyd
Vo. y Dall in Proc. USNM 26, 1963 - Astarte suleata ( Da Costa).
w ‘Shell equivalve, inequilateral, sub-ovate, or orbicular, or Bub=trige
uae generally sub=compressed; concentrically wrinkled, covered with a —
thick epidermis, closed. liuscular impressions two, large, rather kidney=
=phaped. Impression of the mantle entire, Hinge tridentate in each valve.
“Ligament external, with dorsal area and lunule excavated."( Reeve). .
In the preliminary discussion of this group the following note was geae
ey John Qe Burch: " I have been using the sections of Astarte following Dre
- Dall in “ Synopsis of the Fam. Astartidee..” USNM, Vol. 26-,pp 933-961, Trans.
Wagner Free Ist. 1903, pp. 1485-1496 etc. However, a casual study of the —
- apecimens in our collection tends to be a bit discouraging. I wonder if these
- sections are deserving of descriptions as subgenera. Dr. Dall stated :1905,
r The distinctions upon which the subordinate groups of Astartidae are founded
are chiefly the: greater or less development of the hinge teeth and modificat-
ions of external sculpture. As the type of the hinge formula does not change
( but merely submits to certain deductions from its possible total, it will
ag inferred that the subgenera or sections are not very widely separated.”
_" Anyway some one will have to show me some easy way to place for example
Astarte willetti and Aastarte alaskensis in different subgenera. My off hand
Personal Opinion is that we are splitti ing hairs when we try to subdivide
Wied genus Astarte.”
Pe Dee. Joshua Le Badly dre noted in pencil following the above " 0.Ks aaa
i) amen" which seems to be the consensus of opinion. Therefore we will ignore
the seotions “ag Porras: avis caer ented may maine the above paterencete
Pe
Astarte polaris Dall, 1903. " jloutian ‘end ‘Shu
~cumboreale” ( Dall). Johnson * Moll. of ablant gee
90 fathoms", Type locality: near Shumagin Islands, leeks, i
Astarte compacta Carpenter,1864. " Forrester ‘Island, Aleske to. Puget So
( Dali). Type locality, Puget Sound. ee
_ Collecting data: Forrester Island, Alaska, 40 fms, ( @, Wintett)
-ikan, Alaska and San Juan Islands, Wash. ( Wede Eyerdem).
Astarte willetti Dall,1917. * Forrester Island to. ee cs . Da:
ey, Forrester Island, Alaska. Nis
Collecting data: Porvestar Island, Alaska 60 fms. ( gi wixtcae
Astarte rollandi Bernardi, 1B56,, * Pribilof and Aleutian Islands ‘to Pr
William Sound, Alaska Also Kamchatka." ( Dall). Type locality, not
Seldovia, ‘Maske 1927, Akutan Island, Aleutians, 1931 ( s Norberg, Byer
Orea, Prince William Sound, alaska ( Norberg~ Byerdam Colls)ei leas.
ao rollandi loxia Dall, 1902. " Semidt Islands, Alaska" ( Dall).
Abridged Check Sek List" gives lat. 56=59. Type loc., Simidi Islands
” Gollesting data: Orca, Prince Wm. Sound coll. by I. Norberg ( Eye rd:
Astarte arctica Gray, 1824. " Circumboreal. Arctic and Bering Seas” and th :
Aleutian Islends." ( Dall). Johnson "Moll. of Atl. Coast" eneey + Greenland og
and Davis Strait, 15-60 fathoms." Type loce, Ber:
_. ™ Generally larger and not to elongate as Ai seen tee ( Grant &
Collecting data: Hinchinbrook Island, Prince Wm. Sound, 16 fr Se colle
by I. Norberg, 1936; Izhut Bey, Afognak Island, 10 fms. ( Weds Byerdan 1922)
( Eastward extention from Alcutian Islands of about 1000 miles). a)
Astarte borealis Schumacher,1817. " Polar and Bering Seas, North Japan
and eastward to Prince Wilii:m Sound, Alaska." ( Dall). Johnson " Molle
Atl. Coast" gives " Greenland to Massachusetts Bay, 15-100 fathome",
" Alaskan specimens of this species are somewhat elongate, with ‘the
concentric ‘undulations pronounced on the upper { umbonal) quarter ae half
the valves, but smooth or with erent, lines only on the eo bu
& Gale, 1931). inet ae
Ice Fjord, Spitsbergen, 10 fms. elay 1864, Drier Pre night. "Talal x
Sound coll. by Wed. Eyerdam, 1923, ‘10 fuss, oe Pros spertet as: ‘Rhode Ide,
19 fms. ( WJ. Byerdam), . renee
goes alaskensis Dall,1903. " ‘Southern, horse Sea, to Aleutians: ie il
get Sound. H Herschell Island, arctic Const" S Dall). Type dosatia
ee Id., southern part of Bering Sea. — Sian OMe,
" This handsome species. has prominent concentric asbeds: Mr. Geo
and also in the straits. A i willetti Dall ( Nautilus, vole ‘1p Be ‘10, 1917)
is smaller, relatively more ventricose and has fine concentric rib '
Willett who has done considerable collecting in the Alaskan waters,
-ed the latter species in the open sea off Forrester Lisle: Sat no
straits." ( Grant and Gale, 1931.)
Collecting data; Ketchikan,Craig, Forrester Talend Alaska. 10=40
( Ge Willett); Ishut Bay, Afognak Id/, coll. by W.J. Eyerdam, 1922
Drier Bay, Knight Island, Prince lim. Sound, coll. by W.J. Eyerdam, 19
fmae, Hinchinbrook Id., Prince Wm. Sound, coll. by Te Nombor gs: 1936,
San Juan Islands collected by W.J. Byerdam.
Astarte fabula Reeve ,1855. " Cireumboreal, ‘Arotic Sea and south. tn ® erin
Sea, Nunivak Island” ( Dall). Johnson " Moll. Atle cera tl a ¥ Greont
12-90 fathoms," ae
Bering Sea to Nunivak Aiaeghy ( Dall).
nd fey
ietler, 1642, * ites: eerae pane Faecoaicoa? he Dall)s |
, A ea een mnenees Islands to selene Sound" ( Dal)»
ne Dall, 1910. | obs ‘bemiebeind’ bakeri Dall, A905).
1 small, “of. the general form of Rochefortia, concentrically scul«
mally, with a Sonspieyons prodisoconch, which is elevated
al line entire; hinge with the posterior dora margin of the rine
fit into a shallow groover in the margin of the opposite valve;
Uicrly veen, a strong left lateral fitting between two prominent flexuous
r laterals; two right and saree left cardinals a the resilium
Te terior to them all. { Dall).
rdi keri Ball, 1910, Point Loma, San Diego « Snersin) to da gaatera
flifornia ( Dr. Baker). ‘Type locality: Coronado Islands.
. short. Soka on the extention of ee of this. Species aoe Minutes
y,
_ 4 complete specimens ad 1 odd valve from. the sand. at the one of Point eins
4 eomed ia be a cae northward ‘iebauancasey of the ranges Keen " Abridged
ec ae st"
an ae hove: proved ta beling to other groups such as Astarte crassidens
! ind Sowerby ( Carpenter Report, p. 175) which was figured and
esed by Dall as nee, Proce 1903 , pe 949 as Venericardia crassidens.
: Borneraine
_ his names mst be attended with so much guess work and infé
oy the sole ae of ‘Lanerek! Fy Crassetelie. - a
therefore. be s28eds Grant and Gale, 1931,Dr.
Coast Shells" and many others are of this ociatenes is
stated by Dr. Joshua L. Baily Jr. ( Per. Comme Auge 1944) a8 foll
" Stewart prefers the name Crassatella to Crassatellites. The for
is uncertain because the type species was originally described a8
If this shell really is a Mactra, the name Crassatella cannot: be.
our Ce fluctuatus. But if T& were not a real Wactra but
one, the Crassatella is good. Neither Stewart nor G Grant
original material and they have based their opinions on
_ctunately they did not use the same illustrations, which acco
difference of opinions In this case I agree with Grant, because t
Crassatellites has only one meaning, and there is no “possibility
“understanding when it is used, " | ey
_-s- But we are disposed for the time ‘being to follew. the advice
Myra Keon stated as follows ( Pers Comm. Auge 1944) 3 "I have
seen a copy of Krueger's work and am convinced it must be rejected a
binomial. Therefore, Crassatellites must be dropped. Kruger attaches
suffixe- ites to all previously described genera as a device for
fossil species. He does not cite bibliographic references,
much preferable to disregard them. An excellent discuss
is given by Stewart ( Acad. Nat. Sois Philadelphia, Specs
134-136,1930). There seems to be ample justification for
name Crassatella Lamarck,180l== C,. tumida Lamarck, 1807 oe Vea _ponde
‘Gmelin. this is Stewart's interpretation of the type, eTthough | |
actual citation was “ Mactra eyenens Chemne 6, %e2], f+ 207."
says "It is clear from t the or ginal donorsption 4 that ‘the Wea ones
Lanarok was due to a misidentification." | | he
_ the Crassatellidae ‘this orgen lk ieee from the ‘veetlian | Ty
“Ite is interesting to note that the Astartidae seems to prefer cold w wa: 2a as
while the Rrerestel tees are sien in Des tii waters and Saisie Be ae
the cold seas.. ee 4 = a a
Genus Crassatella iamavene 51799. ve! :
Crassatella fluctuata ( Carpenter, 1864) ~ * biaeh) Barbers yeaa
(Dall). ” Sante Barbara: Islands to San Pedro” ( Oldroya) Type rene
Catalina Island, Calif. ;
While other specific names have been given shells from seuiners Oat
-ornia it is our opinion that the above ‘species is the. sole: ‘ones: Kipr
«tative of this groupe ei cis SRR
_ Colleoting data: Off Avalon, Catalina Ieland in 26 fothons A/IvoT
off Catalina Island in 30 fathoms hy ed nice co aire tae
Genus Cragsinelle Guppy, 187%.
~sis a" Ort gnye nid
We have another rather sanptidatea ees eae
name. The source of this difficulty is confusion with
C.B. adams,1847. One version of this problem is stat y
Baily Jr. ( Pore Comme Auge 1944) as follows: " ‘ Sdenetl Cr
roposed by Guppy as a substitute for Gouldia in
waa teacuacothes But Adams had used the name Gouldia
and it was not until 1850 that honapery meee | 7 Nuc me
Ae Bg p 9
that the ‘bird and not the shell needs a new names
of Dre Baily about the bird needing a new name is no
a te However, this does not ‘quite settle the matter because it
“thet when Adams published the name Gouldia it was based upon two
different species, Gouldia cerina and Gouldia Parvae The species cerina
Venerid and. rorve a. essence An excellent sta statement of the case
Pant oe. Ae Myra Keen in Podeedinea of the bviesatoetony, eateey of London
vol. 23, Part I, 1938, pp 3-31 gives an excellent explanation of the matter
i. hich she states that Ge cerina was clearly designated by Dall as the —
genotype of Gouldia in 1885. if this is true then it follows that Gouldia
is a section of Veneridec and ee is the genus for bans ey Crassa~
wi ctellidac.
- Grassinella ere Keon, 1938. Proc. dome ice Soc. of London,vole
25, Part I, 1958, ppdle-32. Type eatery South Slough, near highway bridge,
ty Book bay, Oregon, dn Sect. 14, T. 26, SR. 14, We, Willamette Meridian, 1 to
2 fathoms. Known only from the type locality.
- Crassinella branneri arnold, 1903. " San Diego, Calif. to Panama. San Pedro
“Hisistocens." ( Dall).
Collecting data: This species is not reported atcote living by any mem-
ro: ne, club in California. ‘It is very abundant in the San Pedro Plei sto
Oe “o4i- Fd sced detest suse con Institutions
. ade : Byers reports ae collected Ce sustteldedan oo raving
is the epectes listed in many pki idetigae as 'Geeinateniaeéa “nk marginata
ntere Keep " West Coast Shells" described it " a minute southern eEeTt
1t the size of @ pin head. it is somewhat triangular, yellowish, and
with brown chrevrons" « This specific name was listed by Kelsey, Vol.
2 San Diego Soc. of Net. Hist. p. 38 from 12 fms. off Sen Diego.
cies is” also listed by Orcutt " Molluscan World”. Eric Knight Jordan
in of the Southern Calif. ‘“Acedemy: of Sciences, pe 188 lists a Crass=
llites mere rate Cerpenters. ne would seem logical to assume that this
Be Kelsey also ‘lists a ‘Crassinella variehs C.B. Adams as dvonged in 15
fathoms off Gan Diego. What is it?
Mr. Allyn Smith sends in the: following note regarding question #1.
“ Discussed your questions today with Hertlein over the telephone. He thinks
ag Jordan'# citation of p Spee eects teen margarita is an error for C. marginatas
liest. ‘once to Crassatella marginata Carpenter, so far as we can
ider Conchi1fen= Sammlung, part 3, pe 136 ( 1890) |
ptr. Calforn.” There is no. printed description
e we suspect: that it is a nude name, taken,
"s unpublished mss. or labels, Berry ( Naut. 21:20)
rginata Neal in his Monterey list, based on one valve
she 1 ord tenelt, Vie suggest you ignore. the whole thing."
; See Page 17
Crassatella
‘Family. CARUITIDAR) nue yn | SHAT Sane
The following paper was read to, the. catah by Me ‘AeMy oerote agate
with the. spanet es ubeensea, and . specics of ‘Carditides from the. west coast
Dall’s review and revision. of the family Carditidee: ‘appears in’
Trans. Wagner Free Institute, vol. 3, pte 6, pps 1406 to 1436, 1903. I
he divides the family pie ich eeilenarecl ee with the narmup
valves. He further subdivided ‘the " pibremdly Ceraatinas: ae “gio. "groupe ee
mytiloid form with a byssus and slight ventral gape ‘and ‘Hepercaten teres
without a gape. hy ‘por
In the mytiloid group of ‘the eubfamily Carnétinaa! Dall 1
genus, Cardita . Bruguiere,1792, Lamarck, 1799. or the type he use
calyoulata Linnaeus, the first name to appear on Lamarck's list.
- genus Cardita Dall places as sections Glans Megerle, TLL, . type C
and Card atinora’ Conrad, 1839, type C. arata Conrad as well as |
represented on the west coast. Grant and Gale show that Ce 1
( equals C. antiquata Linne) was designated as ‘the type by Chi.
This species does not belong in the mytiloid group and cardit
as Dall used it. The: oldest of the sections, Glans,the
Carditimera .can well be cinssed. under itas a subgenus.
~est that Mytilicardia “Ant2,1839, " of which it is the wee
for the species which Dal].placed in Cardita 5eSe
Inthe cardoid forms Diil lists a. ‘number of genera
~tions. The first genus he lists is Venericardia Lama
gives the type as Ve imbricata Lamarck. Grant gives
Gmelin. se is to be assumed that ak two. are sia
these we have on the west coast: the. followings subgen
type Cardites antiquata Linne and under it section |
type C. borealis. Inasmuch as Cardites Link has tt
Lamarek it cannot.be used as Dall used Ate ‘Grant en
~cardia proba ly should be considered only a sub;
agree with them.on these pointas em Ae “il
Venericardia is generally considered a good. genus, tt is
d 0 species which seesely TeLone in some iui not
and Galc nor Dall. Dall lists Miodontiscus Dall 21903, a
: odon Carpenter,1864, not Dumeril, 1667, type. Me rolon atus
nite: ardita Lamarck, replacing Cardites as aad. by Deli conve conside
das enus with Cyclocerdia as subgenus under dt and Miodontiscue con=
idered a genus. ‘Calyptogen? Dall,1891 , type.C. pocition | a was d cite
b -@ genus and is 80 recognized by Grant and Gale.
. the subfamily Thecaliinae Dall lists two genera only one of witch
to occur on the west “coasts, It is utinerds alias 1881, ik Ceropsis
ay Hy h { \ \
Suptontty Cora ae a byssus and small. ‘poneeel! gapes
Genus Glanse Shell quadrate, with slight ventral gapes
a Ree Glens 8.8, Shell short, quadrate, convex, posterior right
Oe eareane) often obsdlete, species usually small.
Mi ae carditameras Shell slongate quadrate, lateral teeth strong in
e adult. /
_ Subgenus uptttdoardiny oh Shell elongate quadrate, the laterals absolete
in the adu ay
oup cardoid. .
erea Yaperdvartse, Shel) dies. ronnaea ean ‘NVeterat teeth peaeueh
0 lete, two cardinal teeth in the left valve, three in the right.
‘Genus Gardite. Similar to Venericardia but ‘smaller, with vay right Sos
~erior cardinal absent, the laterals absent.
i ne Cardita sese Shell more or less colored, rere canes SEASe
este ic Gopeetse heat ect with a rude Perontiacun, Boreal
Tat fercreree buddinat abeont, a posterior right and anterior
at co, Siok Lp
a the family Carditidae. He uses the arrangement in pohors
as used by Dalle if the west coast species given by him are
cid be. as auch Ries Gen SF eet A a
a |
pet subquadrate a not Conrad) dy ‘inbebute
Shicas iforeies | |
Rootes Chile,
a Sowerby. quit of Calif. to Panamas
finis gelifornica cle eae Gulf, of Californias
i Fes oe anama
see Gulf of ali cate ito pavenae ON
Venericardia (7%) megastropha Gray. ( C. flammee ¢ Michel 1 & ott
Tower California to Ecuador e Risa ae
Genus Cardita. ; hie oa Gay
Cardita ( Cardita) spurca ones) cult of Onlaty ‘to Perus ie
Cardita ( Cyclocardia) alaskana Dall. Alaska, cn cH
Cardita ( Cyclocardia) barbarensis Stearns. Santa Barbara to San Die
Cardita ( Cyclocardia) crassidens Broderip & Sowerby. B
ae) couldit tells Off/San Bicgon
Cardita ( Cyclocardia) incisa Sores als BLAgKAe ey
Cardita ( Gee Cyelonatitay word ticows Gabbe
Cardita ( Cyclocardia) nodulosa Dall. oC
Cardita ( C Coacaaias eetcaas auc icostata Krause. ‘Avctie. Sea to F
Cardita ( Cyclocardia) stearnsii Dall. Puget Sound. ie
Gerdita ( Cyolooartia) vents (boas Geulay Alaska ta Coronado Islends.
Cardita ( cyblooaraie ) umnaka 1 Wi llett. Alaska, ss
To these shou be added o1 one species listed by Lany 2 0
Genus Calyptogeng. Ah EN
Calyptogena Stongate ta Dall. Santa Barbara her, San. Dhegiy
alyptogena peltae pelts Alaska to cast parene Channels
Genus. ae ike a ae
Miodont Tscus meridionalis Dal, ort Point ee i 70 fathoms. —
‘Miodontiscus prolongatus Carpenter. Alaska to San ero ca Rees
Sabfanily Thecaliinace rk taneR are ton sal eat a
Genus Milneria. — x ae aOR NO RAIA,
Milneria kelseyi Dall. Monterey to Rdsnete Baye feet ie he
Miineris mi inims tou ra Monterey to. Rosario eal
Gardner & Bowles in U.S. G8. Prof. Paper 189 F, 1939, pe ls |
that Venericardia cuvieri Brode may belong in the subgenus Glyptoas
-art, AED ape a, hadra Dall but this is a Miocene groupe ey
: it :
‘The ‘following notes by Dr. A. co Keen ‘ Pere r
from Mr. Strong's conclusions in but few particulars
Genus Begiings Roding, aisha Type by monotypy, Chama p
es ah Sa Linne.
The species gray Dall seems to fit here better deeke in Lans
so far as the hinge is concerned; this is a highly unorthodox a
however, and I make it with due Henttn tions mets o) Beit
Genus Gardita ; Fiat . ae pau:
Subgenus Cardita: spurca ey ; ; eae
Cyclocardia: (€ speoics as indicated by ure , Strong)
Genus Venericardia
eer a ener Eee
Subgenus Venericardia s.s. : megastropha Gray
Glyptoactis Stewart: ouvierl Broderip. |
— Sacco: teehee ete. sedge
groups Glans, igeisiennditn, ‘Garett re aes a
-genera of the oldest name, Beguinas So far ¢
true Mytilicardita in the American area, ‘though
Caribbean. The genotype is intermediate in size
with a reverse curve along the ventral margins Good i
hinges of the various groups are given bil thames is he che:
: cal Amsrican touae. ou have Sauparod West
laticostata with specimens and illustrations of turgida,
y e only living representative of Hognoertttey « and feel eases
sis where latioostata belongs. ty | sti a
Estacion ath (uy ERO ae ae ; ir
| Glens) earpontert Lamy, 1922. Jour. iGenahyt wel 66,1922. " een a
6 isiends, Br Columbia, to ‘Todos Santos Bay, Lower Calif.” ¢ Dall
ciatys Santa Barbara, Cal Pe :
hames subquadrata, perpeener and minuscule. Grant and Gale are in the
of the above Species,
ing. data: This is a very common, little species taken easily
hee erapl aed coast ak under Lisa in. wharf ee otce
ite ‘up iene Pron as deep as 50 fathoms off. ‘Revondo ‘Bowen 15—
| Pacific Grove etc. Dr. Baker dieses it in ae Teuse ae deepwater
a Co nado Telands. te oie. ia ;
ee Seard a) Be ea as ako. a Santa. UBacheva: Pheneea.
» Calif. dey vater™ ( Dall)» Type losality: off Santa Barbara.
wing note reer ‘ived from Mr + Allyn Smith " According ge Mao~
Gain, bachavehes ¢ os a. iiigenlved ‘shell from. 1000. nse: pe the |
arbare Channel ‘and is known only from the original lot. .1 have one ee
shells’ in my collection. It is a good species, -
| Cyclocardia) gouldii Dall,1902. " Off San Diego, Calif. "( Dall).
Jodardia ‘stearnsis Dall, i902," ie Bound") '( Detl) si,
polocardia ‘paucicostata AESHAe 1885. Arctic Sea to Fuca Straits
ocality: Emmahafene
datas Atka Island, pieitrene, 1932 ( Weds ‘Eyprian). ata
locardia) crebricostata Krause,1685. " Point Barrow, Alaska for
alife” 411), Type locality= St. Paul Island, Alaskae.;
Collecting date: Note from Allyn Smith " Mac says that this species im
ot mown, for certain, to have been taken south of the coast of Oregons .
Weh have not éech it from Monterey.” Reported from Ketchikan, Forrester |
li Intend, Alaska 30-40 fms. C Ge Willett); Ishut Bay, Afognak 1, coll, by Wede
| Byerdam, 1922, 10 fms. mud, Drier Bay, Knight Island, Pr. Wms. Sound, 1923
dosage Akutan. Island,’ Aleutians, ‘coll. by Ie Norberg,1931, dredged.
Card a ( Cyc Josardia) ‘alaskena Dall,1903. Keen ". Abridged Check List °—
_ give the é ‘Gnmitted trom Bulletin 112, Grant and Gale: Place |
ie it in the synonymy of the above species. crebricostate Krause. Fh
"Collecting data: Izhut. Baypafognalk IsTand, 1922 ( 1922 ( Wed. Byer dam); Vieto
BC. ( Newcomb).
Ae rolocardia) orassidens Broderip & Bowerby, 1629. " Aretic and
as and eastward to Kodiak Island, Alaska" ( Dall).
llecting data: Icy Cape, Aleska ( Weds. Eyerdam).
i Ge clocardia) (eee Dall, ,1919. *° Santa Barbara to the Coronado.
~Dalljs Ty ocality= off Santa Rosa Island,
esting Rote regarding this epecies has been received from Drs .
Jr. ( Pers Comme | Auge 1944) “ If you decide to follow Grant
tting our coecies of Cyclocardia under Cardita , the species
1 wil. have to have a new name, as there are already +
of Cardi‘~ called nodulosa.” Inasmuch as Dr. Baily is —
ie Roduigea of Lamarck and also Reeve we propre to pete
Tt may est chaos another pene
Collecting data: off Catalina Tes
Cardita( Cyclocardia) monilicosta Gabb,18
Recent Lis { Dall}e’ this species is mention:
Recents One notation was sent in. by Mr. ‘oorge Wiliett. w A Plsistoe ne
species, probably a synonym of occidentalis Conrad.” as See
Cardita ( Cyclocardia) umnaka Willett,1932, " Trans. San Diego Soc.
Hist. vole7, NOs 9, PP. 85 5-90 “. Umnek TAPERS 9 Alaska. Washed up on: tr
beach. ( G. Willett). 3 :
Cardita ( Cyclocardie) ventricosa Gould ,1850. - Belkof tsi Bay, Al
to Coronado Isiands and Cortez ace California" ( Dall de ‘Type loca
Puget Sound. Oe Un ie
Collecting dota; Craig, Ketchikan, Fotrenben retena, Alaska 20-40
( Ge Willett); Monterey records: 35~149 fms. , mud and fine sand, fai
common. Monterey examples are not typical and may be worthy ofa
name ( A. Smith); Smith Cove, Seattle Harbor, 1920, San Juan ,
Bay, Afognak Island ,1922, Uzinki, Spruce Island, Kodiak Id.
We have a very interesting note from Mr. allyn Ge
quotes some observations of Mac Gordon on this species
"The other main problem is that of Cardita ( Cyclocard
There were two species inthe type lot. One can be reco
measurements and figure, but the other was figured as the ty
who, stated that it was the same one figured by Gould. Dall
the Stearns specimen os C. stearnsii and designated the
-imen in the lot as the. typee “There are some who would
mistake was 8 designation of type and that the name ve
~ied to a species of which only a dozen or 80 specimens Ow
sense, however, tells us that Dall should be followed a may gu
that Stearns designated two types of which Dall selected one or that Gould’:
measurements and figures leave no doubt as to which speei . de As.
there is no Rule of Nomenclature to cover the holotyp: of :
the name may be saved for the more common species. Howeve:
form(of ventricosa) is immediately recognizable from :
form. I think that it deserves a subspecifio name ‘based on the m
dorsum, lower beaks, and truncate anterior; this also has an eff
position of the bend at the lower side of the hin
tooth. As I see it there is the typical ventricos
Sound region south to the Sahta Barbara Islands;
ranges from Alaska to San Diego; and a transverse ‘Lc
which is known from one specimen dredged in 822 fagh
hinge plate of all forms goes through the same varia
straight or slightly sigmoidal aspect of the posterior |
C, stearnsii is a good species based on the narrower sh
ack, higher beaks, and the strongly curved posterior
The following note by Thomas A. Burch accompanies t
next two pages: " It is apparent in these drewings that.
of different shape. Our Redondo Beach specime:s are rov
are distinctly more inflated. While these dr=.ings show
ribs it is very difficult to show exactly how it is. I
then I have just finished drawing them. The ribs are mo
“tour in the Puget Sound specimens and while the draw
impression at first that the ribs of the northern spe
“nounced of the two- such is the case. The concentric BCI
of the southern form consists of flat " plates” which I |
several closely spaced lines, while on the northern s
incremental lines. These " plates" tend to line up o
and give a much more definite concentric sculpture ° n
John Q. Burch thinks this should be Cardite vontricos
though there seem to be no intergrades. mit ,
a J
We SOU Fated eA!) Ale ode) ae dae Ske eels.
pn eee
lee ‘
eee en
h, California
fathoms~ mu
©
Ce |
fou
#39~
te Sc
ns Tins
ees
an Juan islands, Washe
@ardita ventricosa Gould
Puget Sounde
ws : AW) aay VA w\\\ Nyy) | \
ane Beinn
CCT
ae ; Uae a
a air
ay ean,
Ny foo oe ree |
aes Le i PUY A ta
c [oa pWithary ee WAM PA) Wy \] Wi) | |
: Beri vere da 7 RET ESV | i)
[ep ing | fi
Get
PEEL, a are ie 2 My 1 {
59" 1 P Ww
r dncisa Dall, io02, *t Unalaske to the Somiai islende, :
eden ‘Toonitty, Unalaska.
: 0 ci ra Dall,’ 1°03. types Me prolongatus be msoutay, Nae
naeaetoeee aeeten atus @ or 1 te Me protean Curent Masia to aan
go, Ce lifornia " ( Dali}. Type losality, near Neah Bay, Washington.
4 — Collecting datas Crei.,rorrester-Island, Alaska, 30 fms. ( Ge Willett);
Sean Juan Islands, dredged ( W.J. Eyerdam); Victoria, B.C., dredged ( Newcomb
e “Monterey record= 5=25 fms. sand, off Pacific Grove, 25 fms. off Carmel, rare
(( 4.G. Smith); dredged in Puget Sound in 1940 by Trevor Kincaid; common in
Ban Pedro Pleistocene§ Burch).
a Mo eppetscus meridionalis Dall, 1916. P ort Point ena Calif., 70 fathoms"
a araaastoal ce from ne type locality. ' eg
y menu tev togena Dall, 1891. Type ( by norlotypy yy) Ge acifica Dali, 1891.
rs Caly togena: pacifica Dall 71891. " Clarence Strait, Alaska, to Santa Barbara
- . Channel, Calif.” ( Dall). Type locality, off Dixon Entrance, Alaska, vee fms «
oes elongata Dall,1916. " Santa Barbera Islands to San Ploe C Dell
ee (i taht hh (off Point Toma, > haha in 275 fathoms.
Rie Genie Milnerta Dall, 1881. “Types Geropais minuta Dall.
NG, Reference- Neutilue ve 50, pe 86, 1937= Dr. Fred Bakere Nilneria minima”
rc ‘Dall and Milneria Root Dall. The first was originally described as: Cer-
opsie mininas Cerops 'S being preoccupied the name was changed to Milneria
ain " In describing Me kelseyi, Dr. Dall remarked that it had been con~
‘Tusa with M. minima and that it could best be described by using the two
ee specigs for comparison. By a curious error he reversed his type specimens
so that the description of Me minima is really the description of the new |
species. To read the description correctly, one mst reverse the names
; - thrdughout the whole article." Ref. Proc. U.S.N«Me, LIZ, 1917, pe 408.
; a The above note copied here although I think. all of the members have —
Gaus: familiar with the Situations
Ms ‘Wilserte seine Dall, 1871. " Monterey to Rosario Bay, Lower Calif. on Haliot+
ha" ¢ » Type locality: Monterey, Calif.
i We viel found minimo bi solag an mek rare. It was rather common at Arbol~
Lat oay Loner. California, - so ool water localitye Ms kelseyi is the common
form taken by all littore! o. ‘llectors under stones.
_ -‘Milnerie kelseyi Dall, Isic. " Bopterey to ; amended Lower Calif.
5 é ‘under ‘etones™ (Tall). at
nae wea FESO I ORO
| s bolteetng the di acuseiun from page | Swe have the following data. ‘from Dre Aas
‘Myra Keen ( Per. Comm. Aug.31,44) " Circe margarita Carpenter, 16554. Mazat~
a elan Catalogue, Ds Sle Type. locality, Mazatlan. Without seeing the types one
-- gannot be positive about. the diagnosis of this, but specimens identified by
a Carpenter, evidently paratypes, in the National Museum seemed to me to be the
_-young of Amiantis callosa or some such beast. Specimens’ in our collection
under ‘the names " Crassatella mar; inate” and " Cragsatella margarita” mostly
- prove to be the shells later named Psephidia brunnea Dall, which seems to be
the valid neme for out California BPeciess interesting essai memorandum
on one of the San 'Diego lots, in Hemphill's Tease says:".Copy of
Carpenter's note -- Cragsatella ( Hemphillia erate Cpr. I must separate
_ this, being ovoviparous; if I 6 cee oe Tia from chitons I will put it
in here. Meanwhile call it Crassatella, — tines. Mr. Willett put me on
the right’'track some years ago when 1 was puazling over the problem, and
later I verified the identification of the Psephidia brunnea at the National
itusoume ‘The spelling " marginata" : is evidently an errore At any rate, J think
can write the Hi Apeatae off 80 far as | California is concerned." ( con.)
in
if be ak
aes
a Op ae Oe
" ee back to tne Circe mar arita es
Mazatlan Catalogue describes a C, subtri na
from our area. Specimens of this in the Mi
eenter seemed to me to be Petricola telli lis. a ey.
Gouldia varians Carpenter, Oct. 1855. Mazatlan cacatme gt
locality, Mazatian. This is a Crassinella that differs from C. p
Adams) in being less compressed, more inequilateral, with finer
8 ae ie 2k oe 2 RE fy it ig
We discussed the genus Verticordia in Minutes #50, be 15.
puzzles connected with unas group was the name Verticordia acutico
reported from Dr. Baker 's oarde in the San Diego Museum and p
picked up from Mr. Button's list. The following | data. has be re
this name, Mr. Allyn G. Smith " Verticordia acuticostata was: describ
Philippi in 1844 as a Sicilian fossil. :
And Dre A. Myra Keen advises us as follows " . Vartidendiat degtdnane
( Philippi), 1844, Enum. Moll. Sicil, vole2, ps 42. This is an east coas
species. Our West Coast form was identified as V. novencostata Adams an :
Reeve for a time. Dall,1886 { Bull. Mus. Comp, Zool., vole 12, noe6, pp p 285~
-286), reviews the group and synonymizes pee ab and onglate Verral ny
under ornata ( D'Orbigny).” OAT
JAE ER ORE OE REC Went Ds f
aeons senhatist Reeve , an exotic species presumably introgpeed. toon, apan
666d oysters has been reported from the Bolinas side of Stinson Beach, —
Calif. just’ inside the entrance. Mr. Allyn G. Smith reports that they are
more highly colored than specimens in the Henphill collection from hu i
We hope to receive further information regarding this haan Gee
SELENERED AEE AES ENED ee ee
cba picts
Kees oe
hn
ed
ee Ba Sage Ee tI as paths pans rie Bd
Femily CHAMIDAE Lae | Roc
Genus Chama Linnaeus, 1758. Type ( subecquent dont akin sieuee ya eae
Chama_gryphoides Linne, Chama lezarus Le ( by subs desige Children So oie
8 given as the type by many authors. 2 |
" Shell orbicular, ovate or oblong-ovate,. Srecatlar, inequivalve, profu~
. ornamented with epines, seats or Janel ines ROReE fee more or less
two, lateral loegee Liganent external, divartoate behind the: canon
Iconica) e -
regarding ne einen: Some giving Sena 1834 . Dre Ae Myra me
us on this as follows" The pomeae oF C. pellucida f the Proce doole
the coast on sii hiee, psicgolbal eta rocks stay: We: are nok, aE ON
bathymetric range but have taken it from just below the tide mark Q
as deep as 25 fathoms on the gravel. beds” off Redondo Beach. ne Burch).
Chama frondosa Broderip, 1835. San ‘Diego, Calif. to Pern! BE ies,
Tocality: Island La Plata, West Colombia. 7
opinion is that such a record was based on einienticlontions
Smith sends us the following data " Note by Hertlein: “ The lam
Chama. frondosa are frondose, expanded and radially striated.
specimens from California or northern Lower Californias". | si
Chama buddiana C.B. Adems,1650. " ge Calife to “Panana i
Gon.
f my Pose ia. I dnyal no way. of checking the authenticity of this:
perhaps, ‘like the Monterey record, it represents a misidentified E>
doubt very much if true C. buddiana occurs in California"
Allyn G. Smith sends in the following note " Note by Hertlein: Co
ee not occur. in California. Contused with Pseudochama granti
ama Cee. guns Svenska Vetensk. Handlingar, Bde 52,
30 Genotype ( by roid geked Pa carte xi Lamarck) -- Chama
L es sine
tk ‘preliminary discussion of this generic name the SE iiowing notes
de b John, ee . Is there any distinction other than the fact
ea ice ieee ChamaeIf the only aiiarenee is in the attachment
valve there must be considerable question about the validity
mas Many species seem to be described as attaching by both right
Cotton end Godfrey " The Mollusks of South Australia" Pt, I, pe |
ing Chama ruderalis Lamarck 1819 state " Usually, when viewed
alve, twisted sinistrally, but occasionally dextrally as in
; the direction of the twist Bepsnte on whether the Bhatt ais
left or right valve." ta
mnonts brought a number of replies. Dre Ay Myra Hast ( Pere.
+" Odhner says ( pe31)c.e" a division into the two
chame ( comprising also Echinochama) is necessarys
ing characters are the following: The dentition in Chama.” may
in accordance with Bernard, 1895) ua Ah)
IS bee
ith ‘some. , mental teu areataaneiie oleae! the genus.
Te ” Oregon to Panama" ( Dall).
; Calir,
oe eidenran: Sivas abundant in the intertidal.
it Nautilus, vol. 47, noe4, pe 137, April,1934)
gives the range lat. 34 to 37. Our experience
ion terey. (Burch) San Benito Ids(2@ Ns) ( G.Willett
gd off itera Calif. on shale in 20-40 fmse, off Avalain.
de,yin 25-35 fmse, off Redondo Beach, Calif. in the gravel at 256
so from tRe rocks in 75 fms. or slightly deeper ( Burch );
, has well egilaaaas = oath on the under ee It is smaller
Family THYASIRIDAE | wy Swat ea
Genus pas Leach ( in Lenarck,1626), sp x by sonotany, ft
(6) §
wp a sa, Montagu, 1803..
"Shell subglobular, earthy; umbos directed forward;
furrowed; lunule sie eure in a Amen pers cxtetnnly
sim le." a
topes ay SeSe " Valves with ‘edentulous tinea? ie antesan
area more or Tess impresead, the posterior more or Teas radially suloat
' placate’ ( Dall, 1903). ae ai
Thyasira bisects. Conrad,1849. " Off Alaska banteauie: ena southward to Ore,
Coast” Also Miocene and Pliocene." (Dall), This, should no doubt also
include the Pleistocene now. It 18 not uncommon in the Timn's Point
San Pedro once considered Pliocene or older but now learn <— ‘to
be Pleistocene. :
Keen " Abridged Cheek List" ree late 44-66 for To
103 by Dr. Dall. An article in wantilos vol. 41, pp ‘129-131 iy ie !
. Tegland “ Thyasira dis juncta Gabb not Thyasira bisecta Conrad
West Coast Sher € arguments pro and contra are too ;
repetition here. Grant and Gale diseuss the Togland opin ae
but do not accept it retaining the name bisovti ba. ida the B of:
_tothe Recent and found them specifically hdeitipeds) 8 ‘e
bisecta has been in almost universal use for u oreat | wy y
the burden of proof should be greatly upon thoce asking us
Reported from Puget Sound by Walter Je Hycrdam,
Thyasira eouaeee Philippi, 1645. " Bering Strait to San. Diego.
( Dail). Pacer ites the range on hi auraau "; Gr and
5-400 fath." ‘
This species was first identified as Thya
genotype, from England. Carpenter called at ipo
many years by Dall, Cooper and dba is Gran’ and tat
Ss socucnusebes uae is a very: common speci
Point ‘Pleistocene deposit at San Pedro. Mr. Walter Je Hyer~
nde in an interesting note as follows: Thyasira flexuosa gouldii Phi!
Prof. Nils Odhner ene foremost authority on the Mollusca of Ne kurop
rs T. gouldii a variety of flexuosa. Comparisons between ».7 European
n specimens shows minor differences. The Euro,can ficxa sa_ is more
white while the Alasken specimens are rougher, heavier and rather
“3 Collecting data: Drier Bay, Knight Island, Prince William
a, 10 fms. (‘W.J. Eyerdam); Hofsos, and Reykiavik, Iceland, dred=
Torrell . Se Coll.) No other member of the club reports
eee) Gpisthuatl Croigny,1e46. * Sitka, Alaska, to Seh Diogo. Also ablentio
a the range in the Atlantic " Labrador to West Indies,
" Type locality: shoei and Guadeloupe. Also reported from
; Seay as subsfecies Thyasira trisinuata polygona _Jeffreys,1863
was as e8 ly as 1901 placed in the synonymy of the typical by Dall, and the
of opinion favors that disposal. W. mention it because (it is listed
ibine Bee eect calcney dieser) Ye emase€ Lewis); Ketchikan
ame Alaska, ee fmse, Point Loma y ir oe he 30 fms.
ea Gaanis eae = aoapee: from 120 sthins, near Cat~
id, Calif., prove to belong to this species."
ane We have identified cla ebeea dredged off Redondo Beach -
ican we ae not pick up another for months. They are very
large part of them were always crushed in the ‘dredge ( Bureh);_
fon ett in 20 fms. ( G. Willett dee
tT Tllamook, Deon,
marked species notable for the: steed fluting of the posterior
t all 19i¢. * off Santa Barbara Island’, ‘Calif. in 1,100
reas. or eEiohe, with the dorsal areas obsolete."
—( Axinu ferruginea Winckworth,1932. Jour. Conch. vol. 19, NOe7
» Dre Ae Myra Keen advised us regarding this specific name “ The
Thye ira ferruginosa ( Forbes), 1844 is preoccupied, a fact overlooked
dest cheok list. Winckworth has caught the h monyme®
" Aleutian Islands. Also Atlantic and scctic" ( Dall). Johnson gives
e “Atlantic Fone " Greenland to North Carciina, 20-1525 fathoms."
1s Axinopeis G.O0c ‘Sars, 1678. Type Axinopsis orbiculatus Sars,
us ste tal tumia eb aig the aged cs ince toward the margins ; umb0=
Axinopsis Kerioatnn: farpenten/ 1664,
Puget Sound and Catalina Island, Cali |
Mexico 7/1938 ( Burch). Type locality: Catali Calif. —
" Shell small, circular, flat, epidermis silken” . ‘Garpen cer)»
Axinopsis viridis Dall, 1901. " Arctic Ocean, on. the west to Japan,
east tne ‘Aleutian and Coronado Islands" a Dall). ‘Type locality:
Bering Strait. bl oie
In the preliminary discussion of this genus John Qe Burch mac e th
“owing confession of ignorance mT. would like very mch to know whet
not there ake really two species on this coast. Axino’ Bis is suc in
evably common shell in mud from around 100 fathoms that the
out through a sereen and then pick the other ‘species out of ‘the
thousands of Axinopsis, One dredge haul almost anywhere would. su
the collectors in creation with an extensive set. T have had ‘80
yellow and viridis a silky green. You Bet a. shades of bot ert: ng ‘some
blotched with both in my opinion. Inasmuchas they all easily fit Carpe
description of sericatus I have been disposed to. lebel all of the
until some one shows me how to separate them.” ee
Dall states of viridis "A silky green, solid, ‘orbicular species me
very distinctly developed cardinal teeth" and of sorieatus * pce ovate Ao A
=tracune"
Mr. George Willett sdvinea me on this as ee Bs ‘Bhess! the
properly figured out ( following illustration by Dall and Oldroyd) » 8@
is higher than long, and viridis isas long as high, usually longer.”
¢ See Proc» UsS NeMe 23: ple 40, figse 1& 2). Mr. Willett is of the opinion
that all of the Redondo Beath specimens are viridis. a have, accepted
Willetts identifications fi
Collecting data: for A. sericatus. : craig, Alaska. q Ge wWitlett) Mone |
-terey record, 15-25 fathoms, Monterey Bay, in sand, occasional ( A. h)
Drier Bay, Knight Island, Pr. Wm. Sound, Alaska, dredged, 1925 Ci
edam); Akutan Island, Aleutians, 1932 C ‘I. Norberge) ihe
| Collecting data: for A. viridis : Craig, Alaska ( Ge Willett Kod:
Island’, Pr. Wm. Sound, Alaska, Victoria, BeCo- 5015" fmss ( Lewis)
Teland, dredged 1931 ( I. Norberg); Illwliuk Harbor, Unalaske Isl 1
(1932 ( W.J. Eyerdam); Monterey record: 36=86 fathoms: off Point Pinos :
dark gray and green md ( USFC Stas, 4464,4475)= 298 fathoms off Point
in yellow sand afd mad ( USFC Sta. 3187 ) ( As you can see from t
we ere calling the material Mac dredged sericatus, and the ‘Albatross shel
: oes We do'nt have enough material to decide on the essential di c
ike to see a few of your Axinopsis from off Redondos T have
Heueiled " 4. viridis" from the Arctic Ocean in 3032 fathoms ( L 2
Longe 168 63° We), collected by Woodbridge Willdeme, They are not solid i
orbicular,as this species is definied by iad 80 a am Neha, lab
on these to A. sericatus.e) — Nee 2 | Higa Mi
Axinopsis af) AR { t ei 4 j : ke He he py
ih
Family UNGULINIDAE PO OBUERS SDE iy a
Genus Taras Risso, 1826 ( Diplodonta Bromne 1831) ‘Type
* Shell euborbicular, eoceth Tigament double, rather lor
hinge teeth 2.2, of which the anterior in the left valve, and ‘the pos b
in the right are bifid; muscular impressions polished, anterior elong
'The opinion that the genus Biplodonta mst be abandoned as a sub
synonym of Taras has been almost entirely accepted by the more recent tud
eents. Grant and Gale, 1931, pe 293= Ralph Be Stewart, Spec, Pube noe: As
pe 193. Grant and Gale 1931 suggest that the entire, fently as Prob bly
be included in lucinidac, MADER ei
_ Subgenus Taras 5.8. “ Shell with growth lines only, rather, ‘vontricose, val
inequilateral.” :
Taras aleuticus Dall,1901. " Cape Lisburne, Arctic Ocean, to the Aleutians
and eastward to Sitka Bay, Alaska." ( Dall). Drier Bay,Alaske ( Eyerdam,
"A chalky, subrectangular species, with coarse epidermis, The young
‘have a smooth surface and dark gray periostracum." ( Dalles ON RS ane
ae orbellus ( Gould) 1852, " Pribilof Islands, Bering Beato oui of Cal- ON
ifornia” (Dall). Type locality: San Diego, Calif. ee NN
This is our common southern California species. It is a subglobose shell ce
with inconspicuous beaks and fine growth Lines. Dalland others” all mention je.)
the habit of the species in forming a nest of sand and other material cement=
ed by musus. However, we have taken this species in. great numbers in bes ae 4
showing no’ inclination to make such a nest. For example the species is very — : i
common at San Onofre, Calif. in the rubbie reef usually among the worm tubes: ae 7
and I have never taken a specimen there with a nest. However, the nest is fhe
common thing with it in such places as Mission Bay. ( Burch) ; Pre Wms ‘Sound
Alaska, 18 fms, ( Lewis); Sitka,Ketchiken,Forrester Id., Alaska, 10-20 fms—
( G, Willett); Seattle in ma, Hoods Wovmte Wiens Izhut Bay, ‘Afognak ‘Ide, Re cae
_ Alaska, 1922 ( Wed. Eyerdam); | an Mb
Taras subquadratus ( Carpenter), 1855. " ‘Getadine Island, i Panama"( Dall)»
6 locality: Maxatlan, Mexico. We have dredged specimens tentatively re,
werred to this anual off Beane eye Mae atel bend Sane) leaky any 26
Dall states " More doopbaanes) and thinner on, ees pu oF ait
outline! While it is true bir our dredged specimens seem to be jee
w
orm);
more compressed and thinner” it is also true that it is possible to a :
especially young specimens from a series of orbellus from such localities ;
as San Onofre that seem to have the same outline as the dredged specim So
( Burch). Note from Mre George Willett " I see no way to nepereNe adults by
shell characters".
Subgenus Felaniclle Dall,1899. Type ( . Bee dente): Peidnia sek |
" Shell like Bele donta, but heavy, compressed, externally smooth, wit
conspicuous dark periostracum and less. equilateral valves." it Dall).
Taras ( Felaniella) sericatus ( Reeve), 1850. " Monterey, Calif. hed sie
Dall gave the range San Diego to Panama, but Keen “ ‘Abridged. Cheek ‘Lis
lat. 837 and the Burches drodged it off Monterey also. in 1940, ie HUW ie ee
Grant and Gale 1931 consider this ‘species conspecific. with the Pliceene
form Taras parilis( Conrad) and make it a Superrat ee, of parilis. (iaklea ata ‘i
We identified our specimens from off Monterey largely y by the fact thet.) |
they did have the " shining pale olive horny epidermis mentioned. by R Reeve Rae
in the description ( Burch). Allyn G. Smith ck Diy ee hier: vat
specimen off Monterey in 15 aeons aca i
Hy.
Wutrany
we!
on ‘hy. vat f dea
ni Leth, ii
shri ¥
na. brugeiere, 1787. "ave 2 ‘i (
his entire group represents another confusion of different-opinions,
ifficulty is that at least three types have been used by different schools
each claim to state a strong case for their designation of type. While
11 outline these opinions below, for the benefit of members interested,
1 ns fitting that we should retain the old arrangements until some reason
umed trom our use of the name Lucina as genus plawing pier groups as
genera that we are not aware of the fact that some of these should and
robably will be raised to generic standing. Dr. Dall in Bulletin 112 and his
Brera orks used the-Genus Phacoides Gray,1847, having as type le jamaicensis
hic! n the same section as the type of Lucina and becomes a synonym o
Bruguiere. We will therefore not use Phacoides , but pending some
Te settlement of the above problem we will digas the arrangement as .
in Bulletin 112,
A aks me. WeHe ‘Dall in © Synopsis of the ‘Lucinacea® 3 1901, Proc. U.S NM, vole
W253, pp 801-2, and in ” Tertiary Fauna of Florida”, Trans. Wagner Free Inst.
of Seis, vol. 3, pte6, pp 1351~2, 1903, and carried on into Bulletin 112, 1921
sed as the type of Lucina, Venus edentula Linnacue.
Grant and Gale, T931, ° Piiocene and Pleistocene Mollusea of Cealifornie®,
Memoirs of San Diego Soc, of Nat. Hist, volel, pp 2834 follow a host of
other authors in the use of Venus pennsylvanica Chemnitz ( by subsequent des-
-ignation Schumacher 1817). ~
Ralph Be Stewart in Special Publication No.3, Ane, Nat. Sei. Phila. ,
1930, pp 175-6 designated A. alba Link #- jamaicensis Lam, as type of the
_eubgenus Anodontia lank, which seems to more or less follow a host of authors
ng jamaicensis as the type of Lucina,
If the above statements seem confusing to the reader, aks is not surprselte
ae dice editor is in the sane positions
} Dre :é hiyra Keen a personal conmunication, September, 1944) outlines the
the problem concerning the generic name Lucina is very briefly sketched
Grant and Gale. One can advance cogent arguments for the use of any one
of the three species of eo seashell or jamaicensis as type. But _
th coneept of the genus altere Bitcra sud cally depending upon which species is
accepted. So far as I can see, it is a problem that must be settled by the
_ Internat oneal Commission. We on the West Coast can avoid dealing with it by
wreating ‘subgenera ag genera, as Frizzel and I did in the Key. Our reason was
t solely a matter of nomenclature, either, as we found one could not key
the various groups of the lucinids under a single'set of characters. Con-
rmation of our grouping is to be found, incidentally, in the revision of
Incinidae by Chavan, so that we adopted for our groups the nomenclature
recommende-~ hence tho Linga ( Here) about which you inquire. The complete
havan reference is: ‘* Essai critique de classification des lucines", Jour.
chyl., vol. 81, 1937, p.» 133-153, 198-216, 237-282; vol, 82, 1938, PRs 59=
, 105-130, 215-243. Chavan takes, as type of eee a, Le jamaicensis,
our e that may be open to question. If the Intothetton onal Commission does” ie
old his decision, his classification, outlined below, will have to he
ered somewhat by substitutions of nemes. The units into which our West,
species are anne pi: cap eee to Chavan: eae) i
: ae ake Genus.
This would be wane hinga 3
He a
Lucina, if ponnsyi Uni a nein cg Wy
=vanica is type. a Da Pleuroluein
# Phacoides® of . Iacina lucinisca
authors 7 is ft
Godakia ‘Epilucina ey californica
| Lucinoma SAU UES ae ua a annulata
( usin in Anodontia oe e sdontudotdes ( ou:
Dall” a8S. ; re « fauns)«) oe
For the Capes a should prefer to deal with 1 gene Epilueina rite
ences,
Perr rts
Subgenue Ragabatie Link, 1807. Type ( by subsequent designation, ali ,190
Venus puantere Linnaeus.
Ty inflated, thin, concentrically striated, anterior and posterio:
‘dorsal ede obsolete; lunule deep and narrow, no visible escutcheon; Ligament —
and resilium deeply inset, but not occluded; margins entire, anterior adductor
sear long, hinge wholly edentulous, shell usually. large® Ci. Dall). ile ae Akasa
Iucina (_Anodontia) edentuloides Verrill,1870. * San Clemente Island to eae |
of California all). type Tocality: La Paz, Lower Calif. | es
The consensus of opinion seems ta be Worl stated in ‘the following coment
by Mr- Allyn G, Smith " We: eee Dali’ 8 record of this ata sia a Be
San Clemente*,
Subgenus Here Gabb, 1866, Type ¢ by desig. stolseoxe, 2671), Tueina Os eS u
richthofeni Gabb. / Bh A ;
hell having all of the usual characters of Iacina, except thet ‘the
lunule is very deeply exoavated, penetrating the hings plate, and almost
~forating it; bounded anteriorly the anterior lateral tooth, and er :
~lp by the cardinal tooth.® { Hs ey
Lucina ( Here) excavate Carpenter,1857, aide ( Here) richthofent_ (
wSan Pedro, California to Pere Mexico™ T Grent aleye pe Loce
Mazatlan, Mexico. — SAL ies Oe.)
Collecting data: San Pedro tn 20 fms. ( G. Witiete)s lithe spec oe
taken in Newport Bay on the north side({ where the big rocks are, upon and —
around which we used to find Cypraea and Ms trielata) moving laborious poae
among brokew shalla and pebbbles, The habitat of the especies 4s coarse
and péeces of shell. 1936 ( Ke Althaus ) I have a fine adult moe dead
in upper Nawport Bay ( Me Caruthers); eau uncommon in the Del Rey Bal
Hills Pleistocene. i
Subgenus Lucinisca Dall, 1901. type( by Devon ee, * Ineine aaseule Conrad
" Shell lentiform, white, with well marked dorsal areas, - the soulptu: cy
~ate end muricate, the right anterior cardinal obsolete.” { Dall). __
Lucina ( point eee) nuttallii Conrad, 1837. _ _ Senta Barhara, Calif. to Yaseti
exico a. eon © Abridged Check List” gives lat. hata ait asi be
an extention of range ss alipieinnii to epnrnreyn Calif. — Mi . :
. If this centrifuge ts”
ge would be Serene to
rey ee 46 whos, vo sand, rare, valves only
hh. , in Morro Bay, 6/36, dredged off Avalon, Catalina
in 26 fa mA, oft! edondo Beach: and Santa Monica in 20-25 fathoms,
ttoral ieeee, Diego Bay, Bird Rock, It is not an uncommon beach shell
the coast from Long Beach south to San Onofre. It is a very abun-
et ote of the Pleistocene ere i, any |
us Ang Coie Nenbtrorn. wits, witht a sc anbieelouh eae
ellose or striated; the cardinal teeth developed, the inner
TDall). 1 pe date Reeves Calirornia)
re reed 1931, place this species in the synonymy. of the Miocene
) Conrad, 1649, stating *The supposed specific differences
annulata and acubilineata is a delusion,” ‘However, this
Weg have been generally accepted. Keen ° Abridged Check
L Baily. Jr * West Coast ee | i and other mevent authors
ng
nt e yno’ vey. of ele aanalave hha’ Grant see | Gale,19310
ta: Craig and Forrester Tsiand, Alaska, 10°40 fathoms ( G.
y record, 8-10 fathoms -( Dall), Bragments dredged in 25 fmse
Ve Alici Point and Harbor Island, Beasi0, Wash. ( Wede
“and ‘also off Catalina reaeed with a bathymetric range
‘less down to below 75 fathoms, (. Burch).
juizonate Shes 1890. " Santa Barbara Islands to
Ball).
Type mt by original dest gration) lucina spot
, convex, all. the. hinge teeth sevelapsa, inner aneeine!
6 ae (Dall). Dall in Bulletin 112 used Epilucina
nder Caliveina as &@ subgenus. Keen ” Pelecypod Key* figures
a a Jr. in West Coast Shells followed Grant and Gale
californica Conrad. In order to understand
ina it is necessary to read his description of
ne Conrad) © Shell orbfcoular, dosinoid, concentrically
! eeble radial sunlpture; the dorsal areas obsolete;
small, comprised chiegly in one valve and fitting when closed into a
in the ‘other ¥ valve; hinge with one cadeulets in each velze, the other
eeble or absent; inner margins crenulate.”® —
Bpilucina) californica Conrad, 1687, * Groacgnt City, Calite to San ©
the daniety nannies |
ies ange VE
of centri a "has the concentric ~
erg ea cy Flnged with flat spinules, :
aye i dina obsolete or desis the snoge er entire‘ Paty ;
a
) , We
-terey, Cayuces, Diane pw dene san Pde
_sulate but not muricate, teeth fen but all pperebtetpooenth =
4
the basis of USNM specimens from Monterey, Calif.as follows
ae
may be indicated by our page ile records, ose
Subgenus Parvilvotna Dall, 1901. type ( by original denigration),
tenuisculpta Carpenter. . see
Grant and Gale, 1931 say of this “ The shells of this
and more convex than those of Luciniseas | This. section, ike
is hardly of more than specific aignificance®, ean
In the preliminary discussion of this section John Burch made
“ing note bringing out some interesting observations * We hve. Gana
under t his subgenus, tenuisculpta and approximata. Dall writes of enui
*,.. metropolis is in the cold waters of he northern coast", and ¥
-imata " Closely related to the lest species, but smaller, more |
“out the aneorter oe cardinal Scoth which ia. pppoe in the
name tensisculpta Car enters. If any of the Gredbere know a “eouna: it
differentiation L will be glad to hear of it. * Ina
Mr. George Willett made the following comment * I agre
but southern specimens in my pa ate eile are ne smal
your specimen may show differently.® aha on the same
the te i “There is no ela ied the of pee Ane
-tion to the extreme in variation.”
Lucine ( Parvilucina) tenuisculpta Car es 1865. ® uniyek te
to the Coronado islands, Lower Calif. ( Dall). Type local
Collecting data: Craig and Forrester Island, prone ( G
Watsonville Beach, in mud and fine sand ( USFC Sta. 3138) (
Bay, Afognak Island, Drier Bay, Knight Island, Alaska ( W.
-ing Station at iene Island, Aleutian Sat ae
Lucina aoe an a Lk kd Dall, 1901. rey, Ca
T Dall). peality, Gall of C alifornia Ny Lhe Me ee
coniseeiie data: San beare 20 fms., Catalina ta., 40 fmse (¢ {
off Monterey, Catst in mate Siig in sand and mess Eas ey
Genus Divericolla von Martens, 1880. ~‘Bype,. se ornate Re Tae: ye
“ Valves piste iets subglobose, the! umbones ‘Theonspic ake
united, deeply inset but not strictly internal, ‘the ae
an angle on a line radial from the beaks” ( Dall). eee ii
Divaricella perparvula Dall,1901. ° Monterey, Calif. (
to Ecuador® ( Dall). .
} iy
8
asua op eS about. Mverde Tia. They tek?
L IE ala Maclaa Ungulinidae ttptiaoncLane)e of
Jase on pags. Te els | Hes
owe record this ‘species. ban ta Pax and Acapuloo but it seems
he southern fauna. The Monterey record is open to such ise
it a disphte. A note in this connection from Mr. A.G. Smith
3 at the Monterey record was based on specimens (ior
y Collection, | ‘in which the locality FoRe yes. are not~
t is not in the Monterey fauna. " :
bit Va us Oe nee aes
ear. ee DG eee tases
e no ‘little ‘pontvdat BA the proper Baty: name for ‘this « 0;
been using Erycinidee Deshayes, 1860, others use the name a
Myra Keen ( Pere Comm. Sept. 1944) advises us as follows:
m > pending a revision of the whole group, apparently the best.
the earliest-proposed name, which | seems to be Leptonidae —
t nee eee he Anton or Ohi args and it may well be that these
ee "Er npetiacen” . His evidence for
D iaeidens the a Erycinacea” into two families, Bi:
ae, the latter jincluding | Rochefortia and Montacuta
. However, Thiele's. generic nomenclature is very Rhee
e to eee nine genotypes. Cossman and Peyrot, " Coh=
. Aquitane™, tome 1, ,1909-12, present a classification
se you by. ‘copying it heres L lnad T enclose eee
1 of eS Rent
| on each Beher are, Dell a confident, of the utmost ‘
the ‘development. of the hinge. As in the vertebrate skeleton, pres ur
vos ri t nin localized. araas will amine directly a ‘response at
‘facets ‘en autres see In fact, 1
account, every hinge shows more
structure and its responses to st
form. In no group are these more t
—typic hinge of the group, or that while
exhibit any of the various types of hinge §
ed simple sop has been hcl ll Land as. s Fachyke
ich are diueuty bent at the ‘Seon, | jor aupenes: ae a ay
form of a figure (7). In Pachykellya the hinge is
a “silium not obviously separate cen the diganent
aie of the 7 shaped lam@ilee , oe which most here ee loped ‘mo @ r
eneey the aden or cardinal ' eg hook", ra The lower nes el ey
etonss The ACE may bé long or. oeeeel wea eee ) is short. we t
eal shaped tooth; the severed eee) ed he modified by oressure to a petalol
ree Sy)
; othe mantle of the enimal is “without OS
| eo as by degener
f the ing Ly
Pichon obsolete.
incurrent and excurrent openings between ‘the mantle
_ueuslly very salaailae and crawls: ‘Like « a "gastropod
Key to te oagdace Adapted from Keen! ri o Koy | to P raleenee er
| node hatin and latera “teeth pr Present. = ey TOE a ae LAT ae
Cardinal teeth 3 in one valve, 2 in other > eo eeetenee
Cardinal teeth not 3 in one valve, 2 in other
_ Carding] teeth one in each Valve eerecroee
Cardinal teeth two in right -valve- (9°77
? ‘Shell minute, inequilateral eecrcesoee
ie Shell small to medium, equilateral © wae
Shell unsculptures, inflated. Seeecccvons oe oe.
Shell with minute paponatigns) not infleted eae
Lateral teeth absente ee a ieee al ak
Same number of cardinal teeth in each vatval te
Cardinal teeth two in each valve, Ligament interna
. Shell inequilateral | (Oe e see cenesctreneseen:
Cardinal teeth one in each valve rere is
Outline quadrangular > or trapezoidal | eeaeee
Outline suborbicular Soe erecerscreneverenss
if
Gerdical teeth net in one Chines) 2 Maenner,
Cardinal teeth absent in one valye 0 Be da. We ne
Cardinal teeth Mokancave in both bwalinncls ene
hi
Le eee A Pe Ce Om, B18
Erycina pellucida Lam, Eocene
| a ge
ete Ce. from Cossman and Peyrot
| yes
prot sf ™
ay age reat ie
Rycwe Pj
ees Pg mt
Lepton squamosum Mtg,
from Cossman and Peyrot
Montacuta substriata Mtg.
from Cossman and Peyrot
En ne Rochefortia bidentata Mtg.
pai a ifn i
PG.
mons Lié
LEFT. ee LLL met Sportella dubia Deshayes
‘ a - ce
We ae
| OO ae ae
|
|
}
eS
amy - |
Holory re
Erycina balliana Dall
Montacuta
caaentaseneneati neeemememmiamemnsameeeamnansntnmetemeem ener mmmaetan emeeetieeeeta eee
enn
| ae
ae a
ne
See
rg han ie ee
Anisodonta
TTS
Lf. ch
rie ee GS ex ee
Pa
Coa)
ive
SSS
<a te
ie
Sa
Ns
\
}
/
fo
wei 9
Pachykellya
‘ te
ee
) By)
\ ib ee
\ ate
\¢ le
Vey }
\ ee . Maorype
el 7 x f Lepton meroeum Carpenter
ool a ae ie ie
i
Erycina chacei Dall
Pseu opythina
i Hecory PE
us }
f Je :
Ali ta ( Conrad) |
Tron BAT,
— iY
a Oa
os
wel
Sportella- Sketch of hinge from
Hocene specimene
LIG.
two ieterae in sack
‘Resiliun oblique,
Es hauner the Beorter: ent’ be anterior or adatertor
“be more ‘rounded and often larger. than the scar at
shell, a yrosult brought eet in all probability by
tuat ne ® A Baws :
rycina have been deseribed fron this coast, all of them
same boas : Prot. U.8. NeMe Vol.62, BPe aR
a i Cie eeeinall ‘Coun. dente g cont! Stated: hae at the ey
Museum I made camera lucida drawings of the six ® Erycina® described
91 ater the National Museum kindly furnished photographs of
m; at that time Dr. Rehder commented that none seemed to be
which opinion I conour. I enclose tracings of my drewings |
these and notes A ae eae I would make the eerie brine
ifs
eebiea, it shouid’ merit, ry now. ‘gems, | but a suapect
Lae es
oeyths dar donde: iia probably should
ee not eben aid of our other plant
pl aeet Saat! ‘on ) “type, ng iasiue in esd,
to Turton"s genus Kellia, mentioning
ul. qui correspond au charactere de son genre
vue Zool, uv. Wel, Pe 295) ( Winekworth,
nequblateraty shell Maeda turad, inflated. The .
concentrically striate or smooth; with an —
Sane and a ae end internal plier
ig until | fairly worl” grown, and the young
he adult shells. In. ‘many species the dental
cies ciel ie & Godfrey, 1938).
have never been sure of more than one ‘species. None —
35 fathoms off San Pedro, Calif. si bilge ‘
Kellie Ieporoustt Doshayony 1839 a
Panamae - ti ty Wy
yates) interesting note: pamela this species is one mad
19365 ® There is but one siphon, which is incurren
#for to the foot is used as an excurrent ‘siphon® .
Leptonidae are not supposed o have siphons. Do they
Grant end Gale, (1931 considered pee a vE sa of _ subort u!
a
eS discussion of this matter Dre "Ae Tyee
1944) stated “ I am in accord with you on the blo
collection are as orbicular or high as our lone topo
sorbicularis. If a separation can be made among our
mame Ke chironid is available ( See Carpenter, 1664,
= ‘rotundata Carpenter, same references The southernmost range
an Martin Island ( lat.30), Fred Baker colle”
Collecting data: It would be a waste of paper
range when an examination of almost any wharf. pile, ¢
ete. will yield great numbers of specimens, It is. inter
specimens. from the northern end of the range average muc
metric range is a matter of some interest . The species is
off Redondo Beach in the gravel down to 25 fathoms» ‘Our 6 ;
oe Roohefor tie Velain ere «
Velain.
in one valve. | “ eee
* Right wales with 2 s aiveegtee sean! ae pit tin um b
tyro kc anakeon left nied with 2 loinepx Saco ae eine
of the ine margin, are Gbeclteds hate Heibiniitha abov
first mentioned valve, and the ae anterior lamina
right posterior ones From Bernard's researches: hee
such forms as the Veneridae betes the latter yreak up
lateral teeth properly so called. But in rare instances the
present group begin to show signs of a tendens foi: arate
distal portions are more elevated ‘than, ‘the media
ina generic sense they reall are. The “ventral.
carries a lithodesma,® ( Dall).
polished periostracum, The Lidar eaiaae are either: free i
the Perea of. poss | or. cogmmensa) on crustaceans. -
Dre A Myra Keen advises ° There is a A Sopa es as to
Velain's reports it may have been 18776,
Gr’ l |
1, 1885. * ley Cape, Avovio: oeaan, ‘sbaes to the
“Alaska® ( Dall),
rinosa Dall, 1916. * San. Prenaiece: Bay to Santa Rosa Island,
Type locality, San Francisco Bay.
sringensis Dall,1916. * Bering Island, Bering ‘Sea® ( Dell).
grebnitzskii Dall, 1916. * Bering Island, Bering Sea” ( ti,
ca Dall, 1899, * Bering Sea to Coronado Islands" ( Dall),
g@ data: Southeast Alaska, San Pedro, Calif. and the Los Coronados
off Redondo Beach in 75 fathoms mud 8/58, off Monterey, Calif.
“shale ottom ( Burch). ro
188 pals 1911, * /Eeiacetn Islands, Alaoke to Gulf of
inden Dall, ‘199. * San. Pedro, Calif, 0 Morro Bay, Calif.
: “Discussed in connection with the following species. ,
olischi Dall, 1916. * Off Santa Rosa Islands, Calif,” ( Dall)
er BE Tait, 1912. ® san Diego, Calit.* ( Dall). :
oe
\
UE iyooles Rochefortia ee Dall until we were
Keen that in her opinion the species is Rochefortia
“s on very generously sent us photographs of the types
/ deal of study and discussion, Mr. George Willett made
nts ae qf Dre Keon alate shells with the type of
a gis ave & Shs cae shell with Wclncion
“Shah teaae e yore arg eouietdatas I Lacengehit that)
Ne inc on one” fapenian. ane seeardGe ‘on the other
‘nt know which end actually is anterior and posterior but I'11
he short end is on the same end in both species. If this be true
: Lane is Rochefortia | peazoans ae since ae desoriked 17
#40= p 16 :
Jn t a ella g ok
athe che,
Rochefortia pedroana Dall, 1899, | 4
Venice, Calif. 8/1937 on Blepharopoda occidentalis. y
Genus Berridens Dall, 1899, Type, Phistiphora oblonga Carpenter
Lateral teeth absent, same number of cardinal teeth in each valve,
cardinal teeth two in each valve, ligament external, shell inequilateral.
Serridens oblonga Carpenter, 1664. Monterey, Calif. ( Chace) to San
polito Point, Lower Calif. ( Eric Jordan). Dall gave the range San Pedro
to Coronado Islands. Dr. A. Myra Keen ® Abridged Check List” noted the
range down to San Hipolito Point. Our members here extend the range north
ward, the Chaces to Monterey, Morris E. Caruthers took the species at San |
Simeon, Calif. ) : rae |
The species is found commensal with both Ischnochiton conspicuous Carp.
and I. magdalensis Hinds, especially large chitons in such a situatton that )
they are inactive, The mollusks are found under the mantle, among the pills, |
and also on the bottom of the foot. “fi ag
ibe
projections ° the right ale margin titting into
nahn one es and one lee y perasne ly a SurEne, inter=_
a bat dab) 1864. ‘Commensal leh Gebia. Puget aaa
eee ( Ge. Willett) to San Bartholome, Lower California
data: off Orcas Island, Puget Sound 10-30 fms. ( Dr. Fred
Cr: Alaska and San Bartholome, Lower Calif. ( G. Willett).
> by Mr Behe Wallet If my understanding of these species is
" and compressa) , Oldroyd has the illustrations reversed.”
te Wp Keen * one, ees veto c
sa and i slightly. different futdines I Ka pal they are P, ee
‘igure ae a 38, figed is ee from Dall, Proce is N.M., We
hine co vress pall, 1899. ° Cape, Tahun: Arete Ocean, to Aeapulect
( iia Dall). Type locality, Bering Sea » south of
fathoms.
rai , Alaska 20-40 fathoms ¢ Ge Willett);
oe ni ho epebaieas with chehosaeie Puget
_ myaci: SL avetla, At the National ne oli The posterior
ae than in other Pscudopythinas. °
1) m age Described as Eryeina chacei meee eae 1916
pe 410). es pnnte Rosa Telend to Coronad 2) Istends®
1939 the Buechos: dredged Gankain specimens off Rédonda Beach,
Y md bottom which had not been classified to species.
tly sent to Dr. A, Myra Keen for identification. The following
ned with the ‘specimens " The packet of leptonids arrived this
ve one real find-~ two specimens of * pee chacei®, one with
es intact. I took my life in my hands and open e Jatter specimen,
1 val eevee ‘broken and looked hoe to Srumble,. es coating
it wi ha thin | solut:
able to see for
“th
' you Hela oo rami said by Dall to be a right
‘but your specimen, with ligament in place, shows it to be a let valve
1, Below are camera lucida drawings of your larger specimen ( a lett
mee ory, like the holotype except it is larger, 8 x 5 mm, as opposed to 5,3
35) and of the right valve of the smaller specimen. After comparison with
ot. of Pseudo thina oo Pe macandrowi,as wella s with other possihil.
ne ave aponey ‘on that ‘Dre Dall's second hunch was ¢oer~
i, ythina ( see Proc. U.S. Nat.
Be compressa but differs in
is. dine Big attached ‘to the foot of dine sea mouse, Aphrodite,
eiinal
| be am
shacol, a
Disr TSR
Noe
Ne
gt
HGebes. phot Philippi, 1836.
Borie eee Minh ie
a cepema3
and one pia pounce Go
lemineae in either valve may have
excavateds® ( Dall ,1900).
-- Bornda retifera Dall, 1899. * Mo
ee oie seep off Santa Rosa Islan
MN ikea af x ; wipes c nay
4s | olished witt
Teenveating date: naa Ventura
Del Rey preeepqoene besten ah a
with 0 one "cardinal and, one or
end Godfrey, 1938). Be
nter, 1864. See agave. on page ce San Dises/, calif.®
» to San Diego® +e Oldroyd). Keen " Abridged Check List®
h would take we northern end of the range on up to
ra Ke a eore ‘Comme Sept. 1944) advises ® the Puget Sound
son meroeum was based on a specimen in the Fred Baker collecte
t the National Museum, probably by Dre. Dall. It seems to
| type, but I doubt if the allocation to Lepton is correct.
however, to suggest a better one. Perhaps ° we should pat’
ame a sau ta marks to indicate unsertatnty.* :
ma of Thi. on. uch, ie deft valve with one cardinal
diverging from the umbo" ( Suter), >
'@ of Lasaea are nestlers, adhering by a byssus ‘to the rugosit~
lgac, barnackes etc. They are abundant in many of the
oa eeeee. ( ae 1804 be the he co oe for a
i i deeured. din the pune aopeatts! on " some of our
cee: ‘80 it was still considered te have a world wide
n : “Troe. Mai, Boo. vole 23, pp. 25-26, ple 2) figs 7-9.
( Kaun) to Ensenada, Mexico ( Burch).
Shell. minute, quadrate, ventricose, cepecially above
ey greatest dimension parallel to dorsal margin and to
“SCArs 3. deaks at the posterior 2/5, umbones tending
more than 1/10 the height of the shell; anterior
aneurin a rhs ge anele) ; not eniieiind inmed=
he
hich engage he wane Yateral of the Hone
a small lamellar posterior lateral; muscle
" Length 1.0 mm, Ht, 1,6, Thickness
sional specimen of L, cistula may —
ou size is only about two-thirds of ° that
Pglatule is consistently higher than ee
iy ventricose, which fact, together With 14%:
Suggested the name, a Latin noun, feminine ta
’ ae subviridis re is fy ner ae
{ dangemmestacaecaanein
Re ‘i shat a a the
ae wy ‘ H 6 Is
MA:
yet
cee
\ oF
WD? fe
ey
a
. o ( af rubra), variety subviridis Carpenter, is pale gi
- sulleteral ( anterior end longer), oblique, rathe
ss _muscle-scars, beaks at posterior 2/5 » umbones low
the height of the shell); junction of anterior and v
stun and 14 gament; Bar ese shail Binge with
range ® Greenland to Wassachusette’,. | i
from ote Uisnea by oh
Collecting datas |
1917 ( H. Ne Lowe); ceiprle Bay “ bridg
Mexico on Balanus ( MacLean 194i),
- Lasagce subviridis Dall, 1899, ( feanca, pg Aton mused dis Dal
TOCs UsSellelMs, vole 21, noe 1I77, pe 681). 7 . or
reported from Lower California®, Redescription b
a
parallel to posterosdorsal margin, but not parall
attenuated , ventral margin rounded, joining post
Apa oud _eroenish or yellowish grey, suffused with
eee: surface sculptured by drrogular eronth’ onsees tiene an
concentric. striae, especially near the ventral margin f
‘with a lamellar ( sometimes bifid) anterior lateral and
‘pit, and a lamellar ‘posterior cardinal above the long,
of left valve with two lamellar anterior laterals receiy
of the Tight valve, a isl ae like cardinal, re a anal
‘lateral.® j ;
jee locality,- bel owen California’, Neotype eon oan Mart
The above descriptions are ineluded because the Proc.
are not readily available to many of the members.
Dr. Keen gives the range in * Abridged Check baee
) Gablesting, data: Monterey, Ban Pedro, ‘Bante Monte
Point, La Jolla, Punta Banda, Lower Calif, ( rch)
| Relend, Calif. ( Kate hesitant: 1907). re ie
‘Genus Turtonta Aldor, 1948. si Venus mlouter Fan
Fewer earainal teeth in one va me than’ ii eae ca
(& in othere i He Ray
*® Shell ovate, anooth, oloned, with: an ‘elongated
, in th |
valve one stout and one slender lapened Jenihar’
lemina. entering a sulous in the opposite valve; pal
“sinuate, a adductor scars ovate, distinet, surmounted by &
from the retractors ( Dall, 1800). ral a Hees ann)
_Turtonda minuta Fabricius, 1780. * Bering Strait r
ower Cavit. w'( Dall) . Type locality, Greenland.
_ Collecting data: Friday Harbor,Wash. Gineb
City, Calif, ( Chace); Rodman Bay, Peril Stes. ,
Elrington Island, Pr. Wm. Sound, on ‘nullipores ( W..
-Turtonie occidentalis Dall,1871._ * Plover Bay, Ber
Wibridged Check List® pives late 55604. re
© We have specimens I papatey ab Turtonia. ogetdentalis
Alaska.® Fe TNT A tL
Teds neh the ventral surface of the Pesach in ‘the larger ¥
wath. a thin calcareous deposit, often wholly absent and never form=
Hepes: ee RHO shmes the distal saphena: of the laminae sometimes | i
kteeste substriata ( Montagu)
ne acide drawing of a specimen in the Stanford Collection from Plym-
Ly England by, Dre As lyse a tae 4
on ioe 1843. Types Aligena striata H.C ;Lea, 1845 ( ie sub
ation, Dall, 1900) =-- A. ae ae ja ( Conrad), 1843.
ferences: Lea, H.C., Proce Ee Phil. Bote, vole3, pe 163,1843 (septaye
Amere Phil. Soc., Sere2, vol.9, pe 238,1845, Dall, Trans. Wagner Free
. Scie vol.3, pt. 5, ps 1175, 1900. Amphidesma aequata Conrad, Proce
hila. Acad. Sci. volel, ‘Pe 307, 1843 ( Oct.). Al ligena ae ao aia ( Conrad),
all, Trans Wagner Free Inst. Scie Vole 3, pte 5, ‘Pe rm TC ple 24, 1895; ibid
s pte 5, Pe 1175, 1900, ae
ae reh, Atom, <9 2 Survey of the West Amip kann Aligenas with a Description
fa New Speeies*, Nautilus, vol.55, pp.48-51, ple4, figs. 5,6,7, 1941, ( Oct.)
‘The following : notes on this genus are by Tom Burch, .
This genus was originally ( 1843) described as follows; © Testa aequi-
ri, subacquilaterali, postice et antice clausa; cardine dente cardinale
» sulco sub natibus. longo, minime profundo.” Two name, A. striata and A.
vis, were assigned to it, unacctmpanied by figures or descriptions, but
llowed (1845) with characterization. Dall ( 1900) designated A striata as
pe of the genus and placed it ins nonymy with Amphidesma semua (Grnned
843) ( Proc. Phila. Acade Scie qolsl. <9 Pe S07, 1843).
| At the seme time Dell recharacterized the genue as having ® a rounded
hanked poparated tye a est ee
-ior dorsal margins, of an elongate |
The pallial re is simple and the past ohh
than the other.*
Thiele has made Aligena a subgenus of Montecuta Turtdn,
of it ® Aligena is von Montacuta nicht wesentlich Weresuiteden. .
einem wertokticn Teil, die vorderen Zahne konnen rudementar werden”. Tt
of Montacuta is described by Dall as follows: * Anterior part, of hinge
~ided in the right valve with a narrow lamina having a minute cardi
at the erexiet ena left ie with a similar lamina on which bea
-ing no trace on the shell; peeatian strong, internal, p
nymphs of which the right one is sntagen tras oe
the laminae sometimes obsolete.” :
ecuta cubstriata which is the te spaces) of uénkecked: ae pepe
holotype of Brycina balliana which Dr. Keen believes is the only represent
-ive of Montacuta on this coast. Neither of these drawings shows the
pepesnee hook” mentioned in the ae ne the Reenint Bishae eh,
cerritensis Arnold nignt of Hontncuts & a Weneseata since at ‘definit y do
have a Wnarrow lamina having a minute cardinal hook at the proximal end® as
ean be seen in the accompanying Brewing, However, the other hinge. ¢. ct
are not alike at all. : ie
vt
ligena “corritensis Arnold, 1903.
Right valve é
—- nuces Dall
Left valve
7 loping abruptly down —
of shell sloping ie y down,
a tooth ees Ee PN ae nuces
tion of shell sloping abruptly down,
i lous duneperepnaacnteustesnerse secede redondgsnais_
és
Niet i te 7, f |
ry
yerritensis house, 1903. Ny
¢ of Pe RPG T es Meme cenit. donde Sei. vols, Pe 138, Ble: :
5 was decoribed from the Pleistorene of San. Pedro, Calif.
orted oe La Jolla, Calif. a bie aan roe Mexico : aoe
aoe vols 45, Pe 597, ls “inte: vols 66, Pe 2 *e ee
from the Gulf of Belitornta, The shell was said to have
, the anterior end of the shell shorter®. Obviously —
would have to be longer, af the beaks are ‘posterior. The
he left valve is described as having “ a long strong narrow chon~
1 a small pustular projection in front of it®, Between the chon=
. the mall tooth is a triangular socket for the reception of
the ot valves The chondrophore to which Dall refers is a
ventral to the ligament. The A. nucea Dall in Keen's
Marine ‘Moll., 1939 is based on two Tots of shells
a Calif, and off Santa Rosa Island, Calif. which are
Burch and not As nucea as identified ba gen
Bur hy? 1941, is Lue)
5 Pe 50, ple a figs. 5, 6, Me ‘
a very restricted habitat in the submarine canyon
e mollusk lives in mud mixed with some fine | ersy gravel.
“ gravel bed” the pure mud is barren of shells when
a lonteane i habe the Alig one ea aise has ped)
‘airly Bea eene. and is similar to that of Ae aequata
| e tooth. The hinge of the left valve varies
imens being similar to that of aequata . However, the
© Nese from being practically seosiste to being
, shaped chondrophore. In the most extreme
above the spoon-like lamina behind which is a
tooth . see ae wieee Pigies)
sath LEFT VALE & ce
pe of Gs Ohta |
\
i
1)
_ Gnnamed genus. So far I know of only two v :
_ the other by MacKenzie Gordon, both at Monterey. The
_ sbles Pasudo ueney but the Mie seems to be ae
in Cane Sa)
Like those of th those o Rese of Thyastra, and, ey to the tiie
opening though not developed into | siphon is”
_— Apbaosonte pelinetss Li ee Peeper eG
‘Family CHLAMYDOCONCHIDAR 1 CON Ts
Genus lagen 4 18846 apa. Chlanydocone a _oreutt Dal
Been routs Dall, 1884.
ry a Ts aeepenemememenen N
| iiinutes ¥ 's9, b p 14” Cardita nodulosa” off catalina 18
the leteral teeth are Dpantine. Muscular scars large,
Doane line simple. Ligament external.® ( Tryon)»
lGapdine
ore
Sportelle salifornica Dall a ® Monterey, Calif.®
TT. wT eS: Th urn ok two Ay :
& Orne @: 24 : Ra aye ole a Neale el gas
Sel@e ce eH ke BS wh coe a aoa abi te
( Personal Comm. Sept. 1944) from Dr. Keen is very. resting § perks
californica is very obviously not a Sportella. Perhaps i re C
Both ve taeeee and lateral. ‘eoth : present Cerataal
f v is
{ i
»
The generic description by bieaca eee
* The shells are enclosed in two little. nace
mantle. The umbones are close together, apparentl,
griatle resembling an abortive ligament,
‘valves are about 10 baad tong and L mi. Wide, d
» hinge or tooth. ‘The embryonic valves are | ;
the umbonese” ( Dall), oie we
‘Type locality, San Diegor eee Paaee :
-- Collecting deta: Mr. and Mre. ‘Ere Chace teport.
in both Mission Bay, San Diego Co. and in. Newport:
brown animal. Mr. Morris Caruthers reported havin,
in Newport Beye ‘EWN. Lows had ‘Specimens neh tented 4 .
| cheteueha: nud daauikones
200 fathoms~ not 60 fathoms.
Minutes # 39- p 21- Thyasira trisinuata collected by 1
roi not Frederick island. 1 4
Minutes #7 59= p 22<. eames se viridis “ool ecto at
not as types 5015, eh Oi
Minutes # 40- p 15~ additonal Vecorae of 0 Nonaebia
{ Hemphill); Mole Harbor & Rodman Bay, Alaska
‘ fms. San Diego ( Dre Fe ie Balland Beach,
Ee resem
eae if Tar VAAN
eer eeoens ppt Gaxpentar | ) | oo
Wimites - aT p uw
/ Thracia challisia
1G. & ie ts Auge, ote
follows * 1 should. ident
‘We have a specimen nts
a specimen Mrs, Oldroya hs ay
#tiflestion. peas '« Da
eyicardium —
| Adaations ah Corrections,
Minutes #40 p 17” Ba
Kellia la cvouskt Deshayes - - Seateias King Con, & Port Orch rd ap C }
Wash. Dutch Harbor, Aleutian Islands, Izhut Bay, Afognak Id., and Drier Ba;
and Thum Bay, Knight Id,, Pre Wm. Bound, salehitg moe tly: acing in em
shells. ( Wed. Byerdam). 4
Rochefortia tumida Carpenter= Minutes #40= p 15- Drier Bay, Kn gh
aska, 15 fms. mud, 1923 ( Wed. Eyerdam)» —
Rochefortiea plenata "Delin apt ce on reefs. Unalaske, Aleutte
ede Eyerdam).s : |
Rochefortia aleutica Dall- Minutes f4o- P 158 Illuliak Bay, Una k
~tian Islands, dredgedes mudes 1932 ( Wed. Byerdam), ,
Rechefortia pedroana Dalle Minutes #40- p 15= © I find in ee current
an interesting account of finding on Blepharopoda occidentalis Ranf@al
Rochefortia spe I collected species resembling your lescription on thi
Crab at Pacific Beach, San Diego Cog, In 1940, they were. ‘commelé-on ch
crustaceans near the Crystal Pier. Other Bs occidentalis examined
“ion Beach, Calif. possessed no shells attached to home My specim
white, with wrinkled , tan colored epidermis. I also have one complete
-fortia sp. taken in sand at Coronado which is altogether different, . a
not identified. I understand Miss Edna Wilson has also collected Rochefortle
from sand crabs from La Jolla, Calif. ( Wm. Keith. Emerson) » Lee ua nie es
Pseudopythina rugifera Carpenter= Minutes #40= p 17= Port Orchar.
Os, Wash. Commensal on Gebia py ptensise ( Weds Byerdam),
Lasaca ape ~ Minutes #40= pp pp 19= An nteresting report has be: eeive
rom our member Mr. W.J. Byerdam pepertiae Lasaea rubra Montagu from Vencou-
~ver Island, British Columbia and Port Orchard, Kitsap Coe, Washes |
in Mytilus beds. This ts the most northern record of this genus o; eoas
and 80 listed in Bulletin 112, However, our decision was that we have oo
eistula and L. subviridis and do not have rubra, Therefore, i it wil i
‘Interest to discover which of the two species Mr. Eyerdam has- or bothe
NB oe ouldii Philippi~ Minutes #39= p 20# Set in the San Diego useun of
abel from Mainea nd Winter Harbor, British Columbia. met Bae
Th carne barbare pis Dall= Minutes # 39» p 21~ 1 velve from Carmen
of tails TH oNe fe Colle- in San Diego Museums vai
bet |
a
t has heen called to our attention that we. Se eho! "eyes
rection Dall, 1908, Transe Wags Free Inste Seis p. 1338 gives T
Axinulus) brevis. Verrill and Bush, Proc. U.S, Nate Mus. xx, pe 79 ), 16
faras subquadratus ( Carpenter) Minutes # 39= p 24- Det each
(Stephens); San Quintin, LeCe ( Oroutt); Teposa Bay, Sonora, Mexe (—
Pta, Penasco, San Carlos Bay, Santa sie Bay, Ganenee Bie
Espiritu Santo , La Paz ( Lowe)»
Taras ( Folantedte) scricatus ( Reeve)= Windeee # 39~ Pp wa ;
stations in Lower Calif., 6 from tho Aower Moxiean obi “save riioerag
Costa Rica, and Panama ( Lowo). |
Lucina ( Lucinisea ) nuttallf{i Conradq Minutes co P 6 Ensenada
20s and Guaymas, Sonora, Moxico ( Lowo). i
Lucine ( Epilucina) californica Conrad= Minutes # 40" p 18. ‘san Felip
Wodos Santos Bay, LeC., Codros leland ( Lows).
a aeene Parviluoina) 4 Preoee Dall» Minutes #406 P ‘as Uh 30 and $5
| Off catalina island, San Benito Eeeenito Telande in 10 fms., Magdalona Bey Cu
plan icdon scaber Carpentere Minutes # 38 Pp 14. 35 fms. Catalina Isla
( Lowe); 10 imse San Benito. 8, nace & 20 fms» Saraen: eu anak 48
ner ny Poderaseeas that Geeahain Bebe ‘is not i coteneeatee in the
coast. Some authors have | been. ne to ah ell of -our aig
he aac ere. be no means in ‘accord on the proper assay | to follow
8 groupe Mr. George Willett made the following comments: “ Am return=_
r manuscript with quite a number of notes on the different species.
the Cardium group as a whole ( that is, our west American species),
Sorripes, our species appear to me to Broup more or less gitar
elatum eet " procerum
a ae? piyistahe ebay oe Mel i
BRN a EE Pek Gon i Coa aree biangulatum
ium 46 to be discarded as a. genus ‘nor. our shells, my main critioiem
rrangement would be:
mo good reason for recognition of didnodaretue: as a full genus. To
uttalli, ciliatum, otc. are much more like quadragenarium than is procer~
ich you include with.it, and the latter in hinge characters is very close~
igulatum m, Also, it looks to me as though centifilosum is not more than
¥ different from californicum or fucanum. If Cardium is not to be
id you have plenty of good authority for not using at IT think I would
and Gale's arrangement to yours, though I think they have procerum —
e wro place and I am not sure that biengulatum is more ‘than subgeneri=
i: ente
| ty) "Cordiun is, superficially very different from any of our spec~
; that oo continued use of Cardium may ba regarded as a ponousaien to
Lee any to me other ore ca: so far proposed are so erat ee
allocar a differs” from n Mraohycerdtun SeSe * The cardinals are ji steely
for and the hinge eee 8 to be same as that of T. isocardia, except
; ait is not so heavy.” Stewart, ue Pubs #3, Acad. Nats Scie Phila. p264)
.chycardium ( Dallocardia) Ae enarium_ Healy wile . Santa Barbara,Calif,
lif - the eaters. helon Cane, Wexieo and have Ht Ei te many localit~
98 off the coast. It has an interesting habit of seeming to literally leap
out iy sand ee rere: the return of the gaily ‘Collecting gets
oe as Roe as 75 ealicea It is odd t
taken eb deeper water than the adults. |
1g
eedcnta? Tt is. not uncommon. Ya the ‘iu ‘Pedro Pl st ver
4.
Loma and in Mission Bay ( San paeee pairs. Ms Sion Ba;
Subgenus Wexianraie phone 1980. Type ( by original
rocerum Sowerby. .
an ii piaced Ce procerum under Rin caraian F
this * Superficially T. procerum resembles Rin ice rdium
has a heavier hinge and the cardinals are -equid nt b
while in Ringicardium the cardinals are cl 6e to t
The hinge ae ‘outline of T. pecan are Las ie
mart, 1930).
trach cardium ( ‘Mexieeegiay extenndia) procerun Ronociyy 1833.
os Angeles County and San Diego. Range 1.
Toland to alae Peru.” This. feat is not es
Goines: inane when. present ares kc tog
inconspicuous; ligament in dorsal view long, na
porcellaneous, ventral and anterior margins
~inals in each valve Re nearer sm
caiplg anterior to the anterior pee
line simple. Bpecimens arnge in length up
Trans. San ia Soc. se ae rigeiee
_ Ribs Avert ea eae an ihe
4. Length of shell groater than height, lv
=icuously ventricose, ribs about 45-50
Length of shell equal to height, vakves
ribs. about 40 ain number eed anudiains/senmane ene
d fo , woton wm Pe ecane, vix prnhayaped
tice ibtraneets, cinerdonrufeatenn hrs carina radar
eles oe let. How polle “Hab. Pu cs Sound .®
A. Myra Keen ( Personal Comm, Sept. 1944) states * The ected
has been confused with both californiense and fucanum. It is
by reason of number of ribs, ventricosity, ovate outline, and deep
between the ribs along the central area of the shell. I have seen
in Sa ties Museum and have studied & ee carga series
rniense eeheue ae rote
ium nuttallii ( Joday 1837, « gute yaks Pribilof, ad Commander 1 Re
) Bering Sea, south to Hakodate, ndines wee San eae pe be,
ape ares 7) ( ooh 1921).
a have sets Aapelied' Cardium corbis. Martyn, This has been the
e of this species frou ’ time out of mind®, However, there seems
but that. Martyn * 8 names are in many instances too confused
and usés An excellent discussion of this matter is given by nh
Spec. Pubs Nos 3, Acads Nat. Scie Philas, pe 260. , yew,
data: We have collected this species common in Puget Sound
Ox a, Wash. It is not uncommon in Morro Bay, San Luis Obispo
Ne dred t off Monterey, Calif. in less than 20 fathoms. Our most
srly record is Mugu, Ventura Co., Calif, where we took specimens in Jnb
“uncommon in. some of the San Pedro Pleistocene deposits(Burch) 5
hoast Al ska, common at low tide ( G. Willett); reported by W.J. Eyerdam
om any places in State of Washingtona nd British Columbia, and Alaska
ae in ell Aleutian ee ee in the bw of Kronoteki
ie “Width oe : Hed
ve Tm dee. ee mm
: 106 ed A ean — 80 m
aoe POR tam ASR IAN 0, 85 mm
ao NEO am) 5 : 74 mmee 8 fms
ohne note! from Dr. Ae Myre Keen of Stanford University —
which she states “ We have recently received a specimen of Clinocerdium
as tt ii larger than Mre Eyerdem's record-sized specimens. This was cOllece
- Atkea Island, Alaske, by Je T. Barnaby, a member of the U.S. Fish and
lif Service, in. 1941, Both valves are intact and in perfeet condition,
hi measurements are? length, 145 mm, height 138 mm, thickness, 102 mm.*
ida Other collecting records of this species are, Windfall Harbor, Admiralty
Is., Alaska a Kate Stephens); Puget Sound (- Hemphill); Orcas Id., 10-30 fms.
(Fy Baker); Japan ( Anderson Collestion); Morro end San Franctaco Beys (. Lowe.
Syeiaiae Aina. BoC ( ical
‘and Sere = ir
gives the Atlantic range» of
Greenland.
Collecting datas Kukak, ices ine. "beeen W. ange €
Alaska 26-40 fms. ( G. Willett); Punuk I., Bering Sea, 1:
Id., 18 fms., Frederick Sound 12 fms. ( Lewis) ut
dredged sandy bottom 1922 ( W.d. Eyerdam); Bering Idee. |
Expd. 1879 ( Eyerdam) ; Tromsosund, Bormay and Hin in ro
~berg){ Eyerdam); ental
Clinocardium californiense ( Deshay el 1841. * J
to Sitka, Alaska. Type loeality, Kamchatka. A
There has been so much confusion about the
species and Ce fucanum that many of our collecting re
and the specimens in our collections should be studied
stated by Dre A. Myra Keen ( Personal Comms Sept 1944
" The species C. californionse is Asiatic |
no farther east than Sitka, Alaska. Most of the
from Japanand the Bering Sea area. The type loeal
as indicated by the only specimen in the Paris M
“pond with the original figure. The original dese
Californie®, which apparently was a bit of poeti
much heavier than the west American form usually |
and the posterior slope, even in young specimen
furrow in addition to the normal ribbing. um hia
C. fucanum Dall is the common West American fo:
Puget Sound, but ranging from Sitka, Alaska, to Monte
from the Bering Sea, but I have not seen specimens from ther:
~inguished from true * californiense by its squarish
shallow interspaces, especially on the middle third the.
ribbing is often fabri a Ee | Pleistocene : it tee a
Pedro. TARR
-ing sciiaceine woaoras are ive wit che ae
specimens involved will prove to be C. pede é
5-20 fms. from Borton Sd., Bering Sea’ to Sek. lasks
etc. ( G. Willett); San Juan I., Puget ‘Sound i Lowe oO:
( Dr. Fred Baker); many places in Puget Sound and in |
Afognak I, Evans, Knight, Sitkalidak I. and Kodiak I. (
Clinocardium fucanum ( Dall), 1907. * LE cried e
and south to Monterey, Calif,® ( Dall, 1921). Keen
gives lat. 37 to 57. Type locality, duan de Fuca |
Collecting data: ‘Dredged off Monterey, Calif. i
( Burch); Forrester Island, Alaska ( G. Willett); Sar
-und. dredged ( Dr. Fred Baker); Puget Sound (—
Victoria, BoC, and a ae Pre Wms Sound,
( Wade Eyerdam). es
a ;
‘
~
comoxense Dall, 1900 from the sy es of V
re A. Myra Keen advises ws on this * I know o
C. decoratum or C. comoxente™s, f 1G
j
|
eo mteratly toaeewes |
1a smaller on the Lpibendua
Pigoueeneeic a eee howaoce the’ nae Chliy ee or
the outside, white or slightly colored with streaks or a blotch
is brown on the inside. Hinge having the anterior lateral teeth
° he cardinal teeth, the re laterals more distant.® ( Clench
hatin vaiuenent liste Dre Ae Myra Keon advises us about the
rds of this species as follows ( Per. Comm. Sept. 1944) Trigonio~
sudoxia Dall should be stricken from the ‘list, The holotype, from
alifornia , is a young Trachycardium ( ey procerum,
: from Gotal ina Island recorded in” Buti. TTz ational
8 bs bearing piteried on the posterior Nee te may be a
‘shell. The ina carried no Feria date® .
cardia Stewart, 1950, ‘Type ot by original siete Gardium
2 fairly heavy. and i aeeelity pivtehed with brown or brownish
ha the anterior lateral and posterior lateral teeth about
5 ance from the cardinal teeth." ( Clenchand Smith-Johnsonia).
a8 been some difference of opinion about considering Americardia
ardia as separate genera. Dr. A. Myra Keen advises ( Por. Note.
“Americardia looks like a good genus to me, but J hold no
or it if you peefer to subordinate it to Trigoniocardia.®
scribed it as a subgenus and it is used as a subgenus
in Johnsonias ‘Dr. Joshua Le Baily Jre writes ® I say
ericardia) bian lata Sowerby, 1829, ® San Pedro, Calif.
921). to Guayaquil ( Jordan 1924). Type locality, St.
We Colombe « to Redondo Beach ( core
los » tos a ertow oa ne dead valves taken iittoralat Punta
and also on Catalina Island, In connection with the bathymetric range
tate to list one of 100° fathoms off Redondo Beach in which we broyght
up a number of dead valves but no living specimens. ( Burch); Mission Bay,
a Ba Coe Sy WK patria, Catalina Island in 30 fms. ( Lowe Gots).
/tgpel ( by subsequent designation) Stol=
Gnelini
if a enerally inflated, moderately thin, smooth to very finely
‘rivbod, not gaping. Lateral teeth prominent and large, the anterior jetcreis
being nearer to the. cardinals. Cardinal teeth small ans well developed.®
| hs hp mene a nd Smith- aa ry
Aix
Laevicardium elatum Sowerby, 1833. * Sai
Type locality, Gulf of California,
Collecting datas Dead valves are ‘commonly 8
off shore reef between Huntington Beach and Long Bea
in many of the local Pleistocene bette dy: ee
Baye Specimens from the Gulf of California are abundee? and ina
~tions.( Burch). Reported from Corinto, Nicaragua by W.J. Eyerdam,
-Laevicardium substriatum Conrad, 1837. Mugu, Ventura Cos, Cal
~Aeapulco. Dall in Bull. 112 sone the range ® Catalina Island d
southe.* Cooper listed it " Monterey to South America®. Howeve
southern shell and I have seen no specimens from farther north 5
collection at Mugue Type locality, San ‘Diez, |) -
Collecting data: We found this species. very common in
Mugu, Ventura Co. which is an extention of the range as giver
miless It is not uncommon off Redondo Beach in water as deep
. It is, of course, one of the most ebundant species in such lc rb
Anaheim, Alamitos, Newport, Mission Bay? on south, to. the Eaters ae
made in our best tata if Burch). , “Vag hae
Genus Serripes Gould, 16425 Type ( by nonotypy) + Cardi ergenlandtown ue
-uiere, Treos |. ee
" Shell subcordiform, compressed, subequilatoral; ikeuee 3m
slightly radiately striate; beaks prominent; cardinal and | Asner
obtuse, small, almost obsolete.” ( Tryon 8.8. Conche). :
‘Serripes groenlandicus Bruguiere ,1789. * Clreunboreals
‘Bouth to BaROdaESy Wa apan, and Puget | Sound® ( Dall, 1921). do
Atlantic range * Greenland to Cape Cod, Gila and Msts as
stractus Dall. :
Collecting datas Tank Ts £0. Roverebune,” ‘gome iG Ge Wit
“Sound, Bering Sea, 5 fms. , Kodiak Island, 13-15 fms., Frederick
fms» ( Lewis); Izhut Bay, Afognak Island, Sawmill Bay, Port Hu
Ide, Alaska «es dredged in mad ( Weds Byerdam) 5 Hinchinbrook I
esund, Norwayee Ingvard ( Norberg); Gedhaven, Greeblande. el t
Moller «+. Topotypes , Bering ne by Vege Expeds 18795 65 fms,» |
-( Byerdam Collection); Lue
- Berripes laperousii Deshayos, hea! 0 aering Strait to ‘Hak be
and Sitka, Alaska” ( Dall, 1921). Type locality, ® Mers de California’
Ho te hae wucn aus opinion that thie is a West Coast species. Howe
Mr» Yeorge Willett of the Los Angeles Museum recently worke p some ms
from Greenland and found Se laperousii in ite Therefore it seems that
laperousii and eee aes are circumboreal, DUN BRN a
Collecting atas eorge Willett informed us_ ‘dhs, thi | spect
taken usually in ohal oy coal “Reported, Kodiak ‘Island, dead
( G, Willett); Punuk I., Bering Sea, 18 fms., Nunivak Teg Ber Y
fmse, Prince Wm. Sound 18 fmse, ( Lewis); near Victoria, Britis
( Whiteaves); Kodiak, Woodyand pegalen! Islands” tn the Kodiak
largest specimens area as follows; |.
Length oye With,
120 mm 95 mm
‘the species. involved here dndey. Ate genus Bracoonedaa Bey=
‘was, of course, followed by Oldroyd a nd others. Stewart in
uepead stetos of Nemocardium, * This genus is separated
his eace has concentric ribs.®
yra Keen in * Abridged Check List® uses Megocarainn, Grant and
) used Nemocardium but considered it a subgenus. of paket
usion pparently not generally accepted. :
re As Myra Keen ( Personal Comms Sept. 1944) says of this * In my rev~
ision of ‘ae oo , ap sense I have been working for about nine years
. Ye T tant agree with Geen end Gale eigenipiaetton of this
dium as subgenera, of Laovicardium. The species of centifilosum
onii are not Nemocardium in the strict sense, but until a rev+
ie Whole group is published, this is the best allocation eyelets
on to Protocardia, a Cretaceous genus, is definitely out,”
menus cae CE eaeeelie 1864, * Beare Bey to Lower Calit.®
a. |
ey in ae and off “esaulede Mexico in 50 fms, ( Sidi
BE0, Calif. in 55 fms. ( Dre Fred Baker); San Pedro, Calif. in 20
lina Island in 30 fms., Newport, Calif. in 30 ise ( G. Willett).
{losum richardsonii Whiteaves, 1878, * Queen Charlotte
Tanibia to San Francisco® ( Dall ). Keen ® Abridged Check
se ese is from about San Francisco to eee Island,
oan in 60=60 fms» ‘but also comments ® oy can see no
this and the last except size.” Mr. Wod. Byerdam reports
occa Bs Co eos Izhut Bays pee Ide and an 8
“1886. ‘Type, Bo ieed pate: Lciantao smiths
rithout lateral teeth; epidermis polished, ‘umbones nbderaeetyr
circumeerstes, ey a vite otherwise as in Meiocardia®(Dall
Ss Strait, Alaska, 522 “fathoms, and in
fa * Dery
a “1696. © Off Tillamook, Oregon and south to the Gulf of
ep waters.® (Dall).
om: f oi Dall, 1895, * orf La aaa elon 1 sands and south to the Gulf.
a. mia in Sere vated ( Pall)» |
with narrower interspaces; sculpture less” arouate tha”
Subgenus ontvosten Dall, 1 a
Muse Compe ZOOLe, vol. 43, Pe 418. ne
* Shell inflatedly modioliform, met dally igh
hinge plate short and broad and the hinge. teeth rad
circumscribed by an. impressed line; pallfel line wi
~ding nearly vertically from the middle of the poster or
Vesicomya ( Beer el) igas Dall, 1896. © off Point Sur,
n the Gulf of Californi aliforn a in eep water.” ( Datei cae ce
Dr. A. Myra Keen bowl eee Woodring, 1938, Prope Pocus, es
nos 190, pe 50, places Calyptogena in the Vescomyaeidae also. App
group is better regarded as of the Isocardiacea than of the Vener
We Cisepssed. the genus ‘Calyptogens v under the Carditidacs
Additionsand Corrections i —™” ie
The genus Nuculana wes discussed in our Minutes gay PP oui,
new species described by Mr» George Willett of ae Los. Angeles
be added to the list. ae
Nuculana burchi Willett, 1944, Bulletih, So. calif. Apter:
Cire pi. 2 » 1944, pp 71=73, Pl. 14, figede ‘ veda
® Shell brownish or olivaceous strigonal, oblong,rather
anteriorly, bluntly pointed posteriorly; posters or: copes
teeth 20-22, posterior teeth about 15. Resilium triangu
‘" Type, right and left valves, No» 1066 Los Angeles
10 additional valves collected by John Q. end Tom Burch, in 50
Redondo, California. Two additional valves takeh 5 miles off El
The type right valve measures: Tongs 1202, alt. 707, late 24 bien
valve in the type lot ( Bureh colle) measures 14x8.7x2.5 mms
‘This shell is very similar to Ne cellulita Gia but adffers. :
Periplona ( Halistre ta) indneate nai 1904; ‘sbe ainatie un
Nae strep) tena ba Redondo Beach, Calif. by th
were specimens raceme allocated td ‘the ‘above species- fr m
fathom gravel bedse Dre Ae M ra. Keen recently examined gne of
returned the following note " 4. The larger is more like Py
Suleata Dall than anything else in thé literature. It is evide
and is longer than thé ‘holotype of sulcata , with less regular on
ridges, but otherwise conforms well with the figure and deseript
We were rather disposed to thin we had ao new species,
Dry Keen's onrace and leave the wae, meheotey ge iene ae
nates mor ine NT te
| "Wanutes tf 40> pp. 9610 We have quoted so. troaly. from 1
work in the niienanatlone, of the Wagner Free Institute o
~odelphia Vol. III, that we may ask ko be excused aif we
& quotation and faib to give the sh reference and
marks where they should be placed. The above pages con
We mentioned Dre Dall ot the bottom of page 9 but failed -
“ence from which it was pedal Ib was the: above work Vol.
pp 1114-1115, Sh I A
: te dbveress eanind, As ioe ene in eae hinge
- without laterals, tro or three small] bifid radial.
: tes in each valve Seren necnerarenseereeenssescacene -PETRICOLIDAR
tone of the Family Genoridee | Bad of the North Ansyteen
Proce UseSe Nate Muse 1902. y
a af Wi teonbeogitne of the Wagner Free Institute of Science of Philas®
1 ‘II Part VI, 1903-6
therine Van Winkle * The Veneridae of Eastern America, Cenozoic
» Paleds Amer. 5a ON
ialph Be ® Gabb's Calif. Cretaceous and caine Type Lamel libra
Pubs se Acad, Nate Scie Sane 18505
y vole 9% yi0g11..
321 Transs San. paleo Soc. oe Histy vole VI, noe 21, 2OSi. |
fey” * The Molluses of South Australia’, 1938
-Rehder ™ Marine Molls. of lain Bernice P. Bishop Museum,
we oo: become a thesis of a size nano in our
n4 oe he a “groove and enfoldiie: a Hees resilium; lunule small, im-
} essed; hs Mila ai chi linear, or absent; ae plate broad and
ora valv
obs Dieta, 2 “ene adae elke one ‘anterior lateral and three cardinales valve
margins ‘smooth; pallial sinus rather long and usually acute; sculpture gen=
“erally of elegantly concentric grooves and interspaces, sometimes raised
o lamellae at the borders of the lunule and escutcheon, copssed rarely
vith weak radial threads; colouration rarely disposed in patterns, a nd
usually pal fl many” species being white; pertostrachm sioeailet ee ‘thin
_ and polished” -( Cotton and Godfrey, 1938).
| Subgenus Dosinidia Dall, 1902. Type , Venus sehoeneelon’ Borne
id aaa * valves suborbicular, more or less compressed, white, with a sculpture
jens concentric grooving, the interspaces never lamellose; furhished with an
obvious periostracum; lunule small, impressed; escutcheon absent: pallial
/ sinus: ample, ascending, angular in front; middle cardinals broad, suleate
i OF bifid, anterior lateral small, fecble, smooth” ( Dall, 1903).
ek. ‘Dre Dall placed all of our "Recent Central American oo feet Indian
| species: in ote subgonie « or section in his nde
Beta obvious that a detailed sas deuusion of the various classifi=
Dosinta ( pueaheley ponderosa
le) ayta, Peruy ( Dall, ; a
Practically all faunal on genres:
this speeiecs at San Diego. Of course, it is a com
eocene deposits, but I have never seen a Recent Bp :
_ eollected near Ban Diego, much less San Pedro, The California recor
open to ‘such uiiiveciae as: to be disputed unless verified. . be
Genus Tivela Link, 1807. Type ( by cubsoquent denies Dall, 1902
corbicula Gmelin ( V. mactroides Born). :
: Shell porcellanous, smooth, sometimes heavy, ‘trigonal
peaks and short but stout 14 gament; hinge with three radiat:
each valve, an anterior lateral in the left valve an or
in the right valve, but the teeth variable, cones Ee :
pallial sinus distinct, short or longs" a
. Subgenus Pachydesma Conrad, 1854, Type, Donax stultorum Mowe. BS
3 * Shell very large and ponderous, with smooth i ‘Lor margil
thick vernicose ah ene dea hinge with four cardinals in eae
Tivela (. Pachy esma) Parent Mewe , 1823. « ‘Hele. edn Bay, San late
California to ower calffornia ” ( Gren and ee ae Boa
rni
published a paper * Notes on Cy
Descriptions of Mdny Varieties”,
~cribed 16 varieties ‘in nee one papers Thoy were all based on |
minor variations. is
to be of Aomipietel rn oie in San Lute todas’ rey ion ne
past Morro Baye From there south while an occasional specimen may ap,
it is not really common again until we reach Todos Santos Baye ( Bur
Genus Transennells Dall, 1883. type i oy dnote: te conrad{na De
"e small, having the general form and coloration of Tivela,
a binds atch three cardinals in each valve, the middle ‘left ¢
and an slongateleft lateral received into a socket in the oppos
the hinge has no rugosities, the lunule but not the escutcheon :
internal margins sharply tangentially grooved with numerous Bu.
pallial sinus angular, free, obliquely ascending” ( ‘Dall).e _
This genus differs from Peephidea in ‘the epencnya of n
lateral tooth in the left walves Dian
Transennella tantilla ( Gould), 1852_ * Sitka. Harbor, A
Lower California” ( Dall). Type locality, Pliocene of
Specimens of this species are sealed ba! tv e of
posterior portion of the shell, ese iat
shale bottom in 1020 fmse, dolieates littoral at | 3
specimens taken from the backs of Haliotis rufescen
at Morro Bay, San Luis Obispo Coe, aiso taken in Morr
uncommon all down the coast to El Morro Point, ‘Ensena
Sante. Cruz, Catalina’ and Sen Martin Islands ( Gy Walle
Genus Amiantis Carpenter, 1863. Type ¢ by nonotypy)
* She arge, solid, ovate, seats dees foi
° § Poti belies tue.
the: ee erior one very thin,
ce erat deal of discussion.
rigin describe: enuse Dre Joshua Le Baby Jre ( Pere
. 194 states the opposition very well as follows: * The subgenus
[ do not think to be worthy of generic rank. It was formerly in=
‘the genera Cytherea or Callista. Certain nomenclatarial artists
se two names on the index ‘expurgatorius, 60 that it becomes a ~
mi, ediency to raise the subgenera. under them to the rank of generae
of umileria is somewhat parallel, but not exactly. The systematic —
of this group seems to be uncertain and until we know more about ty
ir to. onl a genus of it than note”
sa ( Conrad} 31837 ® Santa Monica, calif. ( Weymouth) to Gulf
. Mexico* ( Grant and Gale, 1951). Dall enve the range San
. data: The habitat is just below the low tide line on sandy
open surf. There have been severale fforts to plant this sp=
| oeye SUCCESS. Sam of Anaheim ees great numbers
ae Patou, ee ae soap the stretch of pee between
fF
eae ae ae rinedeas sh iain) in alive by the acy
"ey
Bower, est. tee « by menctaey) Venus tumens Gmelin. : We
eet ea ps eeu. not can inprossed, bounded by an
scutcheon not limited or well defined 3 internal cath smooth.
ee per ‘Piter as Feely tounge d accupteds The ‘storm waa
the rules Btatod as follows fy! The scientific names of animals
eee te ithe toa Tiles, dn 30 fms and Se Coronado Island
fms. ( G. Willett); dredged off Catalina Island, in 35 fms. 8/1937(Bureh
\da_Teglan nd, 1928 {( Nautilus, vol. 42, no. 1, pp 4=5, July, 1928)
i Pei a Alaska, The oe was Canaan identified as Marcia
one. of our ase. omy give this matter a ‘tought, and please advise
me. I find Pitaria newcombiana which I eam changing back to Pitar and note
that Grant and Gale have Pitar newcombianus, And ida -was described as Pitaria
i a hey agen to ida. aa TF anything?” But my Latin scholars failed to oer ee ;
\
1.
Dr. Joshua be er es dee conuieaye a m
you as to the gender of the name Pita nf ann
nor is it Greek. I believe it is Ho tt t. An ,
. as to whether the specific name should be in the mas
form. The specific name ida suggests that this “species
Oldroyd, and since there 4s no doubt as to her gender, I would |
altering at’. George Willett very briefly * Let it ee But
Keen states ® Pitar ida should be emended to Pitar idae,
it. is named for Ida “‘Oldroyd.* .
Genus Ant’ gona Sohunachor, 1617. aype. a by aonotypy) se gona esr rin Sem
~humachers t ate
® Shell similar to that of onione., but with a small part of thi
cardinal in the left valve separated off into a pseudolateral, ‘and a
“ponding pit in the right valve® ( Grant and Gale). — Oe ee
Subgenus Ventricola Roemer, 1857. Type, Venus rugosa Gmeling Ce
" Shell large with strong, distant, ‘ovenly spaced concentric lame
between which are smaller coneentric threads; pallial sinus small, an.
lunule deeply impressed; right part of the escutcheon’ obsolete® ("patty 1802).
Antigona (_Ventricola) fordi ( Yates) , 1890. * Monterey, Calif, to Lower —
aliforniae Panama? © (“Dall)e Type locality, Santa Barbara, Oatity cai:
Collecting data: Dredged off Catalina Island in 26 fmse, off Sa
in 20 fms. sand bottom ( G, Willett); dredged off Monterey, Calif. 4
‘and also in 20 fms. shale 8/1940, abundant off Redondo Beach, — Calif.
to 30 fms, sand bottom/. In the Redondo Beach dredgings the species. !
prefer the coarse red sand although occasional specimens came up from the
gravel. We failed to find it in any of the deeper dredgings. Dredged in 25
fms. off Avalon, Catalina Island, off Point Loma, San Diego Co. Occasional
specimens a re thrown up ont he beaches ‘after storms but the habitat ii pres
-usly in several fathoms off shores C Bureh) 5 ins ote from : aoe,
peeee Cos by Mre Wek. seu key ; — j
1 te Re |
He By CO
Genus ,Saxidoms Conrad, 1837. Type ( by monotypy), Sax:
* Sheil Squivelre,) gaping posteriorly; hinge with fro
compressed cardinal teeth in the Sen valves in the left valve, f
lar oer ee tio, large,
sinus? eee
‘Saxidomus nuttalli Conrad, 1637, * funboldt bays Calif. to La
Ban Martin Teland ( Baker) ( Grant and Gale, 1931), | Type loca
( Oldroyd, ~ et
The specific name nuttalli is the correct spelling acco
Keen and not the nuttallil” of Dall, Bulls 112, Oldroyd |
Collecting eee has been that the no
of this crecton is that the young are often ete | Bhat ar
on the posterior third of the shell. This coloration evid
with age. When taking the first juveniles of this species
almost certain to think that he has something different.
recently sent us for study a striped specimen of the
-teus which he had taken in Puget Sound, Port Orchar
specimens are common enough in the sloughs. A large colony insid: >
on the landward side seems to produce specimens ebout half the normal
‘size or is it possible that the food supply and ‘environment of the
simply develops larger specimens ? ( Burch). i
A HS *
y
ie
/
2k PPr
‘Bpeoies a “subspecies of nuttalli. In my re this
tsa ai aa aime gee a gripe ie extremes with ease
Ser fron peapeetey pea Peepeouey fe ai ‘isaies have
stained shell, probably due to ges matter in the mudey
8 a an my eT eCh LOR are:
oe “120 mmss wisi y 100 mm. “Mud lg Ghuraton Cony: Week|
brevis Dall, 1916. " Admiralty Island, Alaska, to Tacoma
Toeality, Mole Harbor, Admiralty Islandse i i
Shell short, subtrianguler, small in comparison with
ngated. Length , 60; height, 50; diameter 33 mm™ ( Dall)
3 have specimens labelled brevis from the north given’
@ Baker. They seem to be of slightly different outline
the. species. My vote is to abannen brevis to the
Ook af George Willett).
yon Muhlfela, 1slle Type ¢ by subsequent designation,
dera Chemnitz 4* Venus cancellata ‘Linnaeuse
3 1951 reduce Chione to to 4 Subgenus of Venus and on pp
very interesting comp risons of Venus verrucossa Le ( type
cancellata. Ié must be admitted that with the two sholls
nd Gale make rather a good CABO. In the discussion of the
tatemont Mrs ised Willett commented ® I think so too.". However,
I believe Frizzell's work on the Veneracea will
£ + ino better than that of Grant and Galo. Notice his dis=
though sbeicuety: itepisad. Dre a ie Keen advises on this
© stated type locality of Chione fluctifraga ( Sowerby) is Aust -
: Lp aan is an error or subsequent rovisers have misidentified
| form with Sowerby! s figures."
.ta; This is not the common ‘specios in Anaheim snd) Naw suee
: f. but noit or is it rare. Undatells in our experience is the com=
non orm pea in the Estero bolow Ensenada, Mexico, fluctifraga sooms
Peat
x col: fentae, in this sections ( Porch.
| (Sowerby), 1835. “ San Pedro, Calif. and south to eee
II). Mugu, Ventura Co. ( Burch) Typo locality, Gulf of California.
_Dolteeting ¢ datat The oe at hatpage Ventura Cos, dredgod in 10 to 25
_ ealifornionsis ( Brodorip) « I have checked this natto
ugu, Calif. anama® me ae Aue
by ats oe one Asiana sab
Disoussion= Dre As Myra Keen ( pors ‘comms oo 1944) e, * on
~inete ( Valenciennes), 1832, which was doscribed as a Vonus , is &
“fomonym of Vonus succincta Linne, 1771. The noxt availablo «
Venus succineta Linne is not our West Coast shell.” We
advice of Dre Koen on this problem, Ce
Grant and Gale, 1931 place undatella — in the Nynon
the’ species we are calling saliforniensis. In discussing
‘Burch stated © It is my opinion that the two species can be defini
etinguished not only by the coarser and more distant sculpt c
' -miensis but also the habit of californiensis as. Dall stat
of the middle of the lower half of the disk generally are t
flattened, showing a polished surface which nearly covers th
“Mr. George Willett comments * To me , auco angi and fluct4, raga @
alike than are the especie and undatelle.® is ‘ Code py.
Venus verrucossa idemaote.)
he type of the genus Venus “hae been the agaeet lor pene
‘Dell used Venus with type V. mercenaria Le However, the stat m
‘seems to be very generally accepted at this time. Hee
FOE R
‘Dr. Joshua Le Baily Ste ( Pers Comme Nove 19a) comments Stewart
that there was an cariier designation, of Venus alone His | reas
Pecogns zing thas: earlier designation was ae
would apply equally well ‘to Venus pane Neamneeae a that a6 Cuate be . tres
to use Venus mercenaria for the type. the “objection to this course:
action is that nobody else would agree with mee ae ;
ie T wna Grant and Gale are ae cia in vmalcing Chione_ a
xe nus she Ba:
a
mlacea Schinecher a ‘Venus napsouela: Recents
Shell large, heavy; radial sculpture absent, “conoentrt
fine growth lamellae or ‘striac,® e
Venus ( Mercenaria) kennicottii Dall, 1871. . Noah Boy, Waanington,
River, Mendocino County, Calif.” ( Dall, 1921), > yee ee
Grant and Gale, 1931 state © V. kenhicottii Dall ‘from Washingto isso. |
similar to the Atlantic V. mercenaria that the two are very difficult ee
distinguish; and the fact that 1t is very rare suggests that, ema : i
been founded on aevenwi tous specimens of the lattert . BN cat H
Genus Humilaria Grant and Gale, 1931. Type ( by ortgtnat design tior
kennerlyf Carpenter in Reeve, 1863. ty ea
? Soll rather large, ovate=quadrate, flattened, bake’ rd
“tured with fine concentric lines and periodic sharp lamellae
sculpture; pallial sinus rather short, angular, but abruptly rou Vf
anterior extremity of hinge buttressed just above the anterior edd
valve margins crenulated or smooth." . Grant and ieee lagi |
till feel that Humil~
ne nee of om
eed kenr rley: . under * ante Varela Be: pl hia Adams,
Be Stewart ( aa Pub. #3, ANS. P.) pe eal seems to have bem
) discuss the confusion of types of Marcia. His conelusions
red by Grant and Gale, 1931, pe 325» However; Grant and Gale accept
‘or the entire group and described Humilaria as a subgenus of
4 s ‘Venerupis 6.8. seems to te such a distinctly different thing
i ‘difficult to consider kennerleyi in the same ZeOnuss We will,
| low Dr Keen’ in giving Hund larie generic ita ;
ennerleyi, Carpenter in Reaves 1863. * Kodiak Island, Nata ‘to
, Califor * ( Dall, 1921). Type locality, Puget Sounds
ey Prince Willian Sound, Alaska, 18 fms. ( Lewis); Ketchi-+
: Island, 20 fms., Craig from low tide to 20 fms. ( G, Willett);
imeni Bohai ad Sean thor than Sragece ones” 43 Ge Hiblett ys Tshut ‘Bays
a y mud be Weds Eyerdam; growing ehetts ‘from mud bottom have
—< a while some GE she. older fully grown shells with
gig nteus except for
pert of ‘the inside. of theeholisss hie species lives
on the surface of the bottom below the lowest tide mark. ( Wed.
ee water off bien tick Calif. 8/1940, ( Burch) «
Biicwnit)| 1930, Type ff oy. Geet. asetgtion), Saxidomus
pet saree ana < Haan ghl at i
psomyax ‘but. ee it as Shab lone undee
; yra Keen in her ® Abridged Check
mp. Ties tho matter Dike ey ome 4 Stewart! s ae
rt Lotedy 16644 o Saar telantes ‘Alaska to Santa
hee ae ( orareyt) expenses here to ice
{
oy ee ‘off: ‘Hedona Banek. re 1225. fmSe
( Mexico in 20 to 50 fms. ( Burch); Prince
8 fms. ( Lewis); Craig, Ketchikan, Alask ¢ in 10#20
edro egal cone 8 sult mud oe es \Drier Bay,
. “genus. of sronerictas aia ie
Mir. George Willett pa As th
Keen in ® Abridged Check List” uses Prototha
‘Nove 1944) states © I still beat the dni
a vastly different thing.® Dr. Keen also icind!
some of the work of Don Le Frizzell, Bivalves
( Abstract; Proce Geol. Soc, America for 1934( ene
# The genotype of the genus Protothaca Dall 1902 ( Ben
ry Paphia ) is Chama thaca Molinas Tho subgenus
ta es tenerrima Carpenter) is tentatively conside
=thaca, sensu stricto. The subgenera Rhomalea Juke:
Tafa Lamarck) and Tuangia Marwick ( type? Venus era
prove desirable and are tentatively accepted. we
species are now known to belong to the genus Protothaca
possible exception in the Caribbean) are distributed ar
Oceans The gonus is thought to have originated onthe w
America in the Eocene, Species occur in the mi
of North America and in the Pliocene of Japans
Philippine Islands # and» in New Zealand, also occ
of the latter sheet ae onelusion seems fee
~ence has been found to feces, the ene
migration. Since the genus is essentailly litto
land or islandec hain eponeaehone | along the route
when migration took place® 4 * Note by Me Keen
that the | bie iniaie Island record was in sigh
ed in his Doctoral en, oe Geaaee cry
staminea, laciniata, and rostorationensis from our
Thus, ruderata, SoteELd orbella, and épatio: al:
srt ane forms, not as va d varisties,"
Protothaca APO ce) if eo 1656, * Vv
Lower Calif®( Keon ° Abridged Check’ aes lat 2: Rigel
Hi ‘Dall placed this species in section Callithaca Dall,
Gale, 1931 say of Callithaca « | This: cae Eee the
pallial sinus and menneenlated 4
shell and less conspicuous radial p
our disposition is to abandon the use cal
our species as in Protothaca So8e_ na
. This species ie another of those puerles Aesorited
| Panamae Aik
Collecting ae Tacoma, Washe U Ge Willett);
in upper Morro Bay, San Luis Obispo Cos: Calif. Jane
Redondo Beach, Calif. as deep as 25 fms, often washer ino
from Sea Beach to Huntington Beach ( Burch) 3 Mud Bay, T
Madison, Kitsap Coe, Friday Harbor, San Juan Ide,
“dam); this species probably occurs on many beaches of
region but seems to be quite uncommon. I have only
and have never seen them in the loopl nario tel Wed, ‘
4a "pp
JELILL « a Me Ents
eabeck, Washe Holotype
: aes q Yo ap
s is said vag Prigzell to b termediate between Protothaca
te rim, ahe | a description | follows: . Shell as and
ee nook TeoURMOHe' on ‘the. eneertor phat of the shell;
seems to have been present, although almost completely
; no lunule present; inner margins smooth; hinge long, rather
arched; three teeth in each valve, the posterior two in the
the aa one in the aney valve bifid; nate sinus Bebe
en, 1837. 7 ibattit Mehands South’ to, Rambetenka
to San Quintin Bay, | Lower Califand Soccorro Island*®
fale ts ea nen Hessen laa Check List? eee lat.
ani some eon at = our i ee that they are
should be’ abandoned, 60, Nea | synonymy of the typical.
see of os nacre. Laltaiee ic eats
a Té5s. * ‘eeuteern Bering Sea to
19. al) s oi Status questionable” ( G. Willett).
Pee cctnaet nn step toward Truss However, ‘the
tend to occur in pairs, have a Chione aspect, It is
cke®, Walter J. Byerdem rep orts taking it in
d Alki Pt., Seattle, Wash, but agrees with
5 is merely an eeblogie form and the name
ce, We are abandoning this variety.
eres 1864, ® Kodiak Island, Alaska to
oie this form is the globular shape
orm in many lecaiieies. in Pager Sounds
Cy) Dall), 1916. " Puget Sound to Anaheim Bay,
d above this form is not distinctive and we
However, if it were of value we have taken
n exactly in many localities far to the
° This form is very abundant all the way
ee reiesaey. 1039. . Aicutian: Islands to. Ban
f Dall, 1921). Type locality, Columbia Rivere
ers seem to be quite sure what this variety may bee
‘may be necessary to substitute the varietal name
ata ", ‘Deshayes name is the older name. However,
ea ee ieiak of staminens Mre re tea teve acu
i
oa r
ee extended to the iatave” ‘south oe
pe. locality, Monterey or San. Diegos i :
of the majority that it isa distinct denen: “It has: | strong be
by concentric ribs usually making it spinose,
ane eree data: While the ree wane scoms to
Protothaca grata ( ae 18316 ‘This Bone was ‘lis 6
by Dre Dall becaysee of .a record from San Pedro by W
is the unanimous opinion of the members that any.
deen based on some misidentification because gra
Typical of the opinions on this is Mr. George
wornian®, Hea ! Beit Oe lies
Genus Venerupis lanarek, 1818. Type: Venus perf
ee Montagu ( by subsequent designation Chil i
Ti © Shell of eet ne size and thickness, ce toreeeeraear
~ptured with concentric lines or threads of variable strength and
strong or fine radial striations or ribs; hinge plate narrow, dent
that of Paphia; pallial sinus of Sarteble. Pee debs ling, round
_( Grant and Gale, 1931). EL SP Mae
“Bubgenus Ruditapes Chtamenti’77 16
‘Type: Venus decussata Linnaeus ( ie aaa. ry eR ate
) * Shell of medium pe. Ryan Pretty ovate
- umbone
the left valve and the two sortarhce oun Miare a
“what thicker and with a shallow cleft ontop; n 186
or pale salmon colored, sometimes tinged with ‘purples Ven ra
Posterior muscle scar somewhat larger than anterio aH
a deep posterior sinus.® Dall, Bartsch, Rehder ( Molls.
Venerupis ( Acct: pase ce Adams and Ree
into Hawai’ anes and is now established thebels
In the discussions of this species the PolLowing «
Myra Keen is of interest ( Pere Comme Novs 1944) * ‘The n
to be a synonym of Amygdala, which looks to me. to be more ¢
to Tapes than to Venerupis. However, this whole group of ven
toughe Differences that to the layman are hardly noticeab!
profound significance in the eyes of the specialist.
that was because the superfamily represents the h
pelecupods. Lack of crenulations on the interior |
lunule and eaoutcheon rule bbs steplna ees out of Frote
t
ra
mention Paphia bif-
search Board of canada,
ppe 139=40, Quayle
lec’ tat Kitsap rp Puge "sounds Wash. in 1943 and being
(inven le fish markets «( Weds Eyerdam); also reported originally by
as or revor Kincaid 3 Ladyemith Harbor ni Quayle)»
2mUs rus Oken, 1615+ “type ( by sveolute tautonomy) Donax irus Linnaeus.
she f small or medium size and thickness; sculptured id with period=
eleva concentric lamellae, and on the early part of the shell
triations; hinge similar to the hinges” of Paphia and ee
he hinge plate is narrower and ae teeth eee small een
Grant and Gale, 1931). ‘
d our species lamellifera under ‘the genus Yenerupis ‘Goldowine
er authors before and b abe A number of ‘us find this group a
agate sholad fashion ate thee milaae, and like
take almost any shapo according to the varrying hardness of
& mavorsel the. word ety ruderata of Ves taminea is an indpp~
Wetson de between Irus. and "ehoru is. ( Protothaca),” | |
ns i Ae Myra Keen gives the key to we ‘distinction ( Pers Comme
oes Irus lamellifer show internal marginal crenulations ?
Would Tulo it out of Protothacas® _
Conrad), 1837, * Monterey to San Diego, calif.® ( Dall, 1921
atercy, Calif. San Diego?
a; San Pedro, Calif. in 15~20 fms. ( Ge Willett); dredgp d
ine 10<20 Sree Lan ok eh g from stones at Cauyocos,
ence ee ewe ‘Bay, East Siberia.
© Port Simpson, British Columbia” ( Dall).
© Arctic Sea southward to North Japan, and on
Alaska® af Dall 11921) Type locality, Arctic
dates | Pana, aa Bering Sea din 15 fans, and Prince William
rt Lewis) Izhut Bay, Afognak Id., dredged in 10 fms. sandy
a Byerdam, (1922); ay som renee Island, dredged Cas seers)
rma. fort Bartsch and ichaer? 1939.- Nautilus, vole 52, no, 4, pe lll,
Tat Described from specimens taker} in 10 fms. off Chuginadak Id.
oe beatin: Lay NO» 4, Pe 143, Walter Je Eyerdam extends
the. Saeed. from Wslow, ais
_ The authors state that th:
the sculpture. is weaker, ‘the soneentri dq,
separatedsThe shell is glad broader and the umbon
more centrally located.* The oa in meet
clear and completes
Genus Gemma Deshayes, 1853. yes Wonus: ie totam
© Shell rounded, subtrianguler, subequilat eT, smooth, m
within; hinge short and narrow; three teeth in the ‘left valve,
one conical arcuateds two divergent tecth and an intermediate
right valve; pallial impression marginal, with a narrow deep si us
Gemma- gemma Totten, 1834, *® San Juan Islands to San Fra
wuced fromthe Atlantic with seed ost Pes Ne San ie
Genus ‘Bae hidia Dall, 1902.
{: ‘Baird.
* Shell small, Vonosirort Sonahae, with’ ee concen
any; beaks not prominent, valves inequilateral, with a narro
‘lunule pas no escutcheon; Pune ae, feebly concentrically striate
eular , well defined; hénge with three delicate cardinal teott
valve, with no lateral teeth; dorsal pla outside the hinge
grooved. ® ( Dall, 1903). , RR 79)
- Psephidia lordi ( Baird), 1863, # Gnalackn,, renee a oe
‘Type locality, Esquimault Harbor, Vancouver Island, Britt
Collecting data: 8,H. Akaska, comms 20=30 fmse,
in 30 fmse ee 1 specimen ( Be Willett); off Friday Harbor,
Izhut Bay, Afignak Ide and Drier Bay, Knight aa Font Alaska and
San Juan Islands ( W.J. Eyerdam). . pane
Psephidia ovalis Dall, 1902. " St. Paul Island, Bering Sen: to
Setit ( Dall). Type locality, north side. of Catalina Island,
Grant and Gale, 1931 make this a subspecies of. lordi
the ape! of opinion may be stated in one of Mre Geo;
comments ® Two species", The two seem to “Pas easily separable,
Mr. Willett also adds the following note ® aos, Mike to see
confirmed; have only found it in California’. 4
" Collecting data; Dredged in great a off Redon ce
off Catalina Island ( Burch)» Eyerdam reports from Hinchinbro
Psephidia c mete Dall,1913, * Santa Barbara Islands to the
( Dall). Ness te locality, near Cerros Island, Lower Ca rnie
3 09
Collecting datas We have this species from the
Point, San Pedro, but have never recognized it in. any of our R
( Burch). And none of the members report taking ite Wt
Psephidia brunnea Dall, 1916, " Monterey, Calif. to San
Calife™ ( Dalle Type locality, Catalina Island, Gel Lies
oan datas This. Ruger is reer! en vale
“atively rare in our pee in soapabiacn aan the ‘exe
aaa Burch); Catalina Island in 30 fms. and off Sen Ped
illett). i
Pse shidda dainonea(Gdxpanten), TRak) bd Parke iuna: Idee t
San Martin Island, Lower Calife( Baker) ( Grant and Gal
Collecting datas mabe off Catalina Ide in 25 ee .
fom
lif. 20 fms shale
Avalon, Catalina Island, 25 fms. 8/1957 a
ed ( dried speo.) about a dozen small ae
de, 3 as fina’ thee vhis genus is viv= eM
we \ «
Gegavdse’ Mi that ‘these are i
bit in their size and ‘developm
is obvious that this ee *
~inte T. Burch coe
| Family PETRICOLIDAE ras ee
Valves, when not aletoniea, equal, free) ‘aoaga
radlately abi Nhe with plain sul his, and oe
lateral lominae, with two or tives geht Mae: birt
teeth in each valves” ( Cotton and Godfrey, rei
_ Genus Petricola Lamarck, 1801 fa
There has been a diversity of opinions regarding
genuse Dr. Ae Myra Keen ( Personal Communication, Nove 194:
_ type of Petricola is P, costata Lame <- Venus lapici i
. Fleuriau-Bellevu vue, 1802, and also dosignated by Bo idt, 181
is a synonym. Rupellaria Fleuriau=Belleyue, 1802, of which %
“sequent dest patton ef belt 1900, 48 Petricola lithophag
seems to be a valid subgenus of Patricola; not a synonym a
authors who take lithophaga as type of Petricola.e I believe
species fit in poericete ea which has ‘zigzag sculpture; car
teeeegoasee and calirorniensis would | g° in’ oe Rupelses
etc» in subgenus Petricolariae” ec
ba arn ceed
Subgenus Petricolaria Stoliczka, 1870, rape a wy ‘subsequent,
‘Tryon, 1884), Petricola pholadiformis Lamarck, 3
Shell “elongated, pholadi form, seco) hingenteoth protracted,
pallial sinus deepe® ;
Petricola ( aaa pholadiformis Lamarck, 1818. illar
Pacific Coun’ ashe incaid= byerdam) y and cola beignets
with seed oysters: from the Atlantice
| Collecting data: In our Minutes #26, pe a aes 1943, we Ye
species from Washington in an article by Walter Je Eyerdame D x
Hanna “ Exotic Mollusea in California", Bulle Depts Agrics
‘May, 1939, reports thie aaa from Lake Merritt, Oakl
y
great numbers on ch cut flate along the Bay Shore hi ghw y jus:
San Mateo, Calife, Jane 1938. An additional note from
* Native to the Atlantio coast of America fos. Fee
pocmar ye. ; ye ce oO
Se
\
Subgenus Rupellaria FlgurieueBellevua 1802» ‘rypol > y subsoquont a
Dall, 1900), Petricole lithophaga ( Retzius). :
-® Shell inflate an od and rounded in front, Bitanye ted, ‘ana aoee
sculpture chiefly radial, stronger anteriorly." ( Dall, a
ar ( Rupellaria) tellimyalis ( Carpenter) ,1864¢_
imya tellimyaiis, Repe ote Reps e WeNe Amey 1864, Pe 64
onica, California to San Martin Island, Mexicoe
The following references should be examined
this species which was thought by Dr. Dall to be ©
Willett, Ge, Bulty 500 Calife aie Sci. aie bt
( saeped Malaga cove, heels eas, oanit, on algnes
; A Spee ges Nove, 19404 Me
n snaller variations, Toke Burch.
ha) fe NN
ri iLtoides Conzad, 1857. f 2 | Vancouver Island to
ring n shale ee) Grepoent. City, Calif., dredged in
40 mse, aff Redondo Beach in 25 fmse, littoral
{ Burch); Alki Phint, Seattle, Wash. and Restor=
ge Island, Kitsap Coe, Wash. He Rankin, 1955, Newport
aka tone ae pres!
0 sete of thie species ‘in ‘collections bear
provinee, ua oy our ‘ohelis’ are al c fornie
wiensis is given © California and ocean coast of
to San Ignacio Lagoon, the type from Ban Lib ae on 0:
follows: | ah een
Anterior end evenly rounded; ‘paliial sinus broesly rounded, t ends
thine Californias a ‘ my
Psiseice end tapering to a ee fepuenes waanty
longetriangular; shell more solid, partly pt
province CROC Herre ereenarerenone e
Note of opinion of John Q» Burch» The above Stati aseter
~iensis and denticulata has always been very unconvir
quite possible that we have two. SpeOree here, PeEnoy w
Santa Monica and off Redondo Beach in ‘the dredging:
described characters of californiensis very well.
out of the shale at Playa del Rey and also those from An
the pholads seem to me to be just about perfect nena
‘the anterior end tapers to a RateOw ly rounded. pot ie
long-triangular etce Sets from San. Onofre, Santa
sondo Beach etc, show the anterior end rounded a
Seiterence in the ay sinus as described for
the others Fre augetic bifid; qateraus ae r
palliad line narrow with an ample pbiaas CF ies 1900).
of California™ C Dall). ee lites San ‘Diego, Cali
Collecting data; Santa Monica, 10 fmse ( llett); A as O
Mission Bay, Estero. south of Ensenada, Mexico. Dredged off R
Calif. inas deep as ae Ta chamss ‘3 Burch). aise
Cooperella
of merely desertbing the enatony « and behaves of meilusiey 2
their anatomy | as it bears on their classification, Instead of >
structure and functions of the various organs, glands etes,) (0 ig
ee: it will be RY aim eee to show the distinetio | |
ae Recess I believe it would be heee to say s domeblitae
velopment. of a mollusks Tho early development of all mollusks,
phalopods, is fundamentally the same. Thus the following descr=
chal apply to any of the other classes with but a few modifications. ey
oy cael i) bhatecconeaa’ rey a Mestenenen Noay with cilia con= Aunty)
unt anterior endend the foot, and by the appearance of a sie Lhe
‘the mouth ( figel.). In the twenty four hours after becoming
» @ shell is secreted by the shell gland, a velum of cilia is
ming and food getting, and the foot becomes larger. This sec
ing larva is called the veliger ( fige2e)» The change from
to. veliger is accompanied by very little increase in size; but
ea veliger period, which is usually from 6 to 12 days ( dep= _
the temperature of the water), important changes eccur and the |
Ss assumed hige! al tae ea animal inereases: in size. The velum
4 tS
) s den ronan aatomce and not a. eae Batts a heir, The fares
terior and contained the gills, anus, and common apertures
gonadse The alimentary canal contained a radula in a mus= aoe
ecal masse ( Borradaile & Potts). The heart had a median ventricle = =
- of auricles. In the nervous system there were, as in annelids and — GN,
2 eircumoesophageal commissure or “ brain” which may or may not
“ ganglionated. Ventral pedal cords, a visceral commissure coming
pleural part of the brain, and a pallial commissure in the mantle
also present. From this beginning atverend the different Bre yee
now todays
ons ( Amphineura). ¢ figesS). which departed least oom the ances=
re became ‘elongated but limpetlike forms, their mantle cavity
around hg: foot while instead of a 1 single pair of gills many
‘ figs) reminud’ as short creeping forms} they are.
the growth of the visceral hump dorsally, but unequally so
d ina spiral, which is. ‘covered by a single shell, This caused. _
of the visceral hump which has revolved ( usually to ther ight)
the body ee oie logis the mantle cavity anterior. This
deuce, but the ulentation of the mantle Bea ae ‘ite
Before torsion the gills and anus point backwards, ( figse
auricles are in front of the ventricles. After torsion the gi
project forward, ( figs. 8d & 9c) and the auriclesare in
The uncoiled visceral nerve loops have been caugh: in the
laid.over the other, one over and one under the intes
er near the anus forming a ae aati: Tht whole P 8
minutes for neers ark
table, I). The order may be divided ae ez ae
“branchiata or Diotocardia in which two gills and thus - uric
preserved, and a more Specialized one, Feotinthranchists or lono tocar
which the right ( primitive left) gill, 31
dissapeared, Some of the Agpidobranchiata Like Trochas are
“late stage. No
It is possible that the ewe of ‘the organs: of
torsion are to a carietn extent wavorni! it gai Ha:
backwards be in pee oe the. auricle bening the
of this Aaeeatad are ‘ane “aaphpsed to show. eee
detorsions pain: like this pass into the Bypte
detorsion,( T 8) in which the shell is
- posteriorly sae he visceral nerve loop is
The Pulmonata are usually united with 0
“class Euthyneura, as does Dall in Bull. 112,
of the nervous system ( more Lavine i ‘the
detorsion. in Pulmonata ‘the shell ‘ts Pomine aa ee
typical members of Kae Groups but the visceral nerye, 2
circumoesopha eal nerve collar,so the negvous Tags
figse 12 & pends The most Ligne members of Rie
One of the most ohatacter athe cae hid . if
exception of the Pelecypoda, is the possession of a adula y
membraneous ribbon bearing transverse rows” of many ti
radula is usually borne on a pret inate PUpeea ts Sy
sent out through the mouth and work to ane: een like. a pi a
prey ( fig. 14). It is also used as a tool for boring in
order to le their contents. omy a emall \ sent f 4
at one times — ey, Min a
i Hes! peat ina is.
» like Tegnia‘( fig. 17), All modq
is from ene. median line of the radula outwards
ate al teeth being the last to be modified.
marginal teeth often gives a clue in many cases to the
of a much modified radulas; although in many groups the
0 long established and has proceeded so far that even the
longer retain their primitive form.
fan Footh of the radula is the central one ( fige 17)
oe sortee of teeth may be Beant or pepeateds
i ‘the redulee are ipobatae in. the ean Seal of a
La is often very eves the teeth het This includes
lidae, and Lepetidae s fig. 16):
‘he radula is remarkable in the dvaiepent of the uncini or
pare. re pee often meee cee like a fan's ribs,
land with: a broad eked ae This
olaridae, Neaveeret Ge Nrseedee, Moriodcae, md
consists merely of large rep eined teeth on each side,
uae This tne ludes Terebridag ee, and Can=
Hoey sept in most Pec etodctic pitt “arolamited: in Opistho~
and Pulmonata, ' fig. 29). In dioecious forms the reproductive
i ReneS ERE of an ovary or testis situated dorsally in
2
_ebranchia and Filibranchia of the British are lumped re eee
-atus consisting of an BOE EE or. ' fermaph
~maphrodite: sven an albumen gland, sometimes
duct and sometimes a 2 single ei panied are
rendered unnecessary | and ede into ate monuie. caeuey has
Similarly the foot has lost its flat sole and has to be ex
valves to move the animale ‘ ES
The faoets that the sneering sholl, at ite first
Peteepe seems ao point to a common ancestor for
and Gasteropodase ~ nee se
The organs of respiration are he. gills
number=~ right and Aeft~ each consisting lof
iimea groups which can be ineneeee ih’ ax evolutt
‘beeoming larger, more complex and solid forms.
group, Septibranchia, in which the habit of life
the gilis have practically dissapeared. Protobr
filaments short,compressed and free from one a
~ten, & Mytilus -=- filaments deitsate and somew! tene da, each —
bende upon itself in a "Vv"; Eulamellibranchia~ -ea, Oardium, Mya, Anodont
gill filaments united by vascular Gnterfiiaments esulting in; be
like gills; Bop tabpencnian oils ne to nee tal m,
to note, ‘however, that dee, two. ayetane Choke hinge eon
The peculiarity of the digestive system of Peleoypoda
of a‘diverticulum of the intestine, the oells of which se
Style. This structure projects anto. the stomach aga i
the gastric shield, It is. constantly worn away and the
with the contents of the stomach. There is no doubt tha
special provision for the digestion of carbyhydrates.
some gasteropodse No portion of the eee tract 5
in classification a6 in the enter Z
brini tie reise te have “four: dlabince seaee. of pace
‘remainder of the class the number we reduced me thre H
“bral and plefral ganglia, PENG?
The reproductive system of the Pelocypoda ts dike vi a9
-tance in classification. ae aya
In the Cephalopods the ‘primitive bilateral uncle 4 ret ned 5 Tn
there is an unequal growth of the wisceral hump. relative to be tg
body, as in gasteropods, however, it is coiled in a plane—
no. torsion, the mantle cavity conatethe poehertet iy aca
secome ‘more gel more eagenn: buimmers pen this is
ee ep aa their Ha oye habits.
be nervous Be the eye. thers. is haan inl to indicate hei
ip with any of the lower classes beyond ‘the general conformity © ane
lan of organization and the presence of aradula ( fige28).
is, in fact, a singularly isolated group. Paleontology en
Loti tt indication of their Whee and embryology is equal ae
one pode q
Cai cation of Hea Table. Ir Classification of ee
data or Streptoneura Dat American ss ‘British
‘Dictocardia) — Cae ert | Frotobranchtata
he aA ila “ueulacea ha ‘Nucula .
Pye ae ae Yee fs , VN 'Plasbranchhebe
ENS Uda isa Sa gh Fabaceae: a Arca
AEs -Pectinacea ~~ Pecten OE I ae
mie _ Mytilacsea "Mytilus \ OU" st ae
haat a bay Ostracea oes Bd
re Wes DAS ‘Teleodesmaces ‘Bulameltbranchtiata BOR nee
aay a : ws Ostraca a ie
UE pra he a gee Garauewe > Carddum
Mactracea — _ Anodonta
Myacea jeep
— Anomalodesmacea | Septibranchiate As
ea i eiacdaeene et Poromya. RA
ee anaes Oka hn ae . Cuspidaria © Cage
"Tryon Lees bar eputinetie Nansronsere
on ee a Coast of America= daw 112
eo) Hie GAR) oleh
OO Aap vere
“e BU te) vat ) By ss ;
cae
ES che sphore
x. PH)
onl
€
Of PEF um
pane fee aa poe ee a
: Oh ey Lottie: Brerree E MBs ) | is “
ema Bt
Aseneeed E
J18¢. Pohmunchieee
Haliotis € Ba & Baye
Ptenoglossa
Be T4Be) Me
hele ebeeleatehiate
ae gouldiens €, ae ) Pies
| £625. Re aia ste es
‘Doris obvelata ( Tryon) Bae
a finales ne
‘ peadc ‘eo dantetoies
leltgo eae ( Tryon).
y ws me g
xe
a Tht z
hat Wb
y
A
AB veeinum,
.
#A3= p 3
Se
tier ys
Te carpenteri
Macome inguinata Me incongrua Macoma secta
Un pe
com Sm ; 2,
Sohn gee eal
et
Me carlotensis Me quadrana Me planiuscula Me glaskana
( topotype)
Hinge of
Macoma carlottensis
Macoma nasuta
.
umb one
Hinge of Apolymetis biangulata.
c)
These figures have been retraced from the report on Tellinidae
made to the club in July ,1943 and published in Minutes #25, 9=26,
They are from the work of Beatrice Le and Thomas As Burch,
Ce She ie siburtaehel or neces shaped; rey short,
ti external, seated in a deep Groove eevseseeesoeeeence vonlewed
‘The above yey taken from Cotton and Godfrey * The MoLiusks of South
sustrelia) ho
mily TELLIN cae
us Tellina ee 1758. ibe: ( by subsequent designation, Schmidt ,1818),
ma radiata Linnacus. eh
The” Shell is slightly inequivalve, compressed, rounded . in Prout, ange
and slightly folded posteriorly, umbones subcentral, The pallial sinus
qopice’ ‘and Pree the er is. external and he eee Teeth 2,2;
| Sher io: some pisdabudons FN
Sia lateral amine in each valro,, those in the left valve always
‘However, Dre Dall uses ‘Tellina (Lam) with the
abe “Linnaeus Dre Ae Myra Keen advises on. this matter as
Pers.Comms Dec, 1944) ™ Tellina s.s. must have;the same type |
‘as “Tellina Behe, ame Ly » Te vadiata., 8 ., tellina idae “mayebe: assigned Mar
te sibgorus Tollinella’ Morch, cue s type & brian e utan by ntenee tee 1871, ie
Tellina. virgta, Linnaeus.” rat
With two lateral laminae in the right valve, one. or doth, of those of the
“left ‘valve. ‘absent or obsolete. __
: - Subgenus: Merisea,Dall, 1990 exe Te, ‘aaeliyte Sowerby»
LS Bt us Moerelia Fischer, 1887 @Xe Te salmonea Carpenter. !
Hi th a strong right anterior lateral , closely adjacent to the care
~dinals, the left laterals absent, the posterior right lateral. obsolete.
: aaeil ee ad a ale ee (OX in carpenteri Dall |
te
ners ;
.
=] / sewed ead hog to Pe ee. with a fold dy the eheut valve, and
@ corresponding furrow in the left, compresses, rather stout, white or yell~
ish, more or less broadly rayed with red or red brown; umbones prominmt,
median or slightly posterior, The seulpture consists of rather fine,strong,
erowded concentric lirations, ‘strongest and often sublamellar posteriorly,
with fine microscopic radial threads, most prominent near the umbones. Lig-
i i -ament. external, rather stout, dark brown, lying in a narrow elongate, dep=
“ressed eseutcheon, and situated on a rather stout, posteriorly truncate nymph.
‘The hinge consists of two earcinals an each valvo, one strong, triangular
and grooved( the posterior one in the right valve,thce anterior one in the left)
a and the other snealler, more slender and divergent; there are two laterals in
| each valve, those in tho right valve strong,sublamollar,triangular, and those
' 4n the left valve rather lov’ and somowhat fused with the margin. Interior
white or yellow, often with red reys shorting through; muscle scars typical,
the posterior one i aolae the meinen ane eheneetes The aor sinus
is pether lapee. extending "bout four
the tio muse Le sears” ( De bie aisulicgtoli'il
Tellina ( Tellinalla we Dall, 1891. inte.
Pedro, Oalif.” ( Dall), Type eae. ue Beach,
In our experience the range of this species along the
be from Newport Bay north to Santa Monica, Calif. | Ae hae
Collecting datas San Pedro,Terminal Island,19955, Neapor’
and not uncommon in the dredgings off Redondo Beach between 25 fms
as deep ms 50 fms. Specimens from San Pedro are difficult to ide
of the fact that so much fossil material is washed into the bay
confusing to determine whether or not the specimen is Recent o:
Young Specimens are equilateral and triangular in shape
sculpture than the adults. In fact,thhe very young ere common in
Beach dredgings and usually take a. eeeaes look to classify on th
Subgenus Merisea Dall, 1900. ‘type ( by original designat
_etallina Woods “.es« the laterals of the right valve a1
but the left valve is without lateral teeth, its margin fit
laterals of the opposite valvees” (DBall). a i
Drs Dall used Merisoa as a section of the subgenus
of which Dall says “posterior left lateral absent, and th
other teeth normal®, It seems that the strongly developed right:
are sufficient to distinguish this section as a subgenuse
Tellina ( Merisoa) lamellata Garpenter,1383%. ° San Daeg
*lan® ( ball). Type lowality, Meazatlane wT
None of the members report having taken either th S pec
following, However, Mrs AsMs Strong comments ® Know ‘of no rec
species, However, they both range up along the Lower Gi if
strays could come up as far as Catalinae® |
Tellina ( Merisoa) deolivis pee meni! . Catalina 1
raname” ( Dall)e My,
Subgenus Moerelia Placher, 10876 Type ( by eign Tell:
" Shell small, compressed, hardly folded, acute behind,
with feeble concentric sculpture; left laterals obsolete; no
the sinus long, coalescent with the pallial line below® (Dall
Dall says this section is closely related ‘to Angulus but ha
better developed and is without the internal radiis a
Tellina ( Moerella) salmonea Carpenter, 1864. * Aleutian Islan
Calife” ( Dall). Type locality, Monterey, Calif. ees pea i
Collecting data: Umnak Island, Atka Bay, Forrester Isl
~aga Cove, Los Angeles county, Calif.= S. Coronado Island in>
dredged off Pacific Grove, Calife Auge 1937 in 15 fms. sand
Bay, Knight Island, Afognak Id., Mitrofinis Ide, vbhesy ee a d
Alaska and Dutch Harbor ,Undmak Ide,Atka Ide Aleutians Aa Wed.
~inbrook Is. colle by Ingvar Norbegg ( Eyerdam)e —
Before 1922 a number of specimens were taken from Sean
seems to be one of quite a number of species ba Mrs AeMs
before the dredging and filling operations. eh
Tellina ( Moerella) meropsis Dali, 1900. * San Dogo, Calis,
California” ( Dall). Type locality, San Diego, Calif.
Collecting data: San Diego and La Jolla, Calife, ‘ae
San Diego Bay, 1916 ( Chace)s San Pe Bays common: CWw.k
Subgenus Angulus Megerle, 181ll. Type( - subsequent, dortgnatio
Tellina lanceolata sashes
an a. wiated: the. puetece eal ane or
; nymphs phere: and prominent, the ligament
jecent lateral well developed in the right
r3 internally. @ thickened ray passes from the umbo Just beh=
the or adductor scars and one or two narrower similar rays in
the posterior edductors, often stronger in the left valve, the pa-
rr sometimes obsolete; sinus largely or wholly Beer oeeenr with |
11 line below" (Dall).
r He: penteri Dall, 1900. s Forrester. Island, Alaska to
| tes, ae | Panama" ae Dall utes Type locality,
t we aul derehe down to below 100 Pathons! off Redondo Beach,
fate ce in 40 fms. Coe oe dredged off
feet “this neeotcs pes Soauriee! Lig ane Thotere: rom Burch ’ ‘Minutes:
aaa #25 De 12 " Resembles T. modesta and Te buttoni »
t, narrow,hardly % inch long (Keep). It can be distingui~
ctond by the absence of a ray behind the anterior muscle
a Slight difference in sculpture. The T. buttoni has a blmter
The color ranges from white, pink stripes, through solid pink,
Meny collectors note that they find specimens lacking in pink
find many colored forms. hiud bank forms are usually pink aand
he sand forms. Mr. George Willett notes that the Forrester
. specimens are more striped and of a muddy yellow with rays®
is amazingly common when ‘founds To quote from AeM, Strong,
is to found in bari numbers es ‘asa whe water
teria ae plentiful: iin “San Pedro Bay a resect
bOgensis ‘Selasbary.s4 Catalina Island, Calif. to
3@ locality, Panama Bay. ( Ty panamensis Dall,1900,)
|! Seg as on of just. what this species is has been the sub ject of a
/ al of d ion between local collectors. We have a statement on
rong ( Per, Comm. Dec, 1944) ® Have specimens dredged
tified by Dall. They are very small, pure white and
hing which would distinguish them from the young of
-earpenteri Dalle The BeebeCrocker Expeds material
valves of Tellina which I could not place. Tellina
Dall , if there is such a thing, should be among them, ™ Te_tabog=
new na e for panamensis ( Proce Malac. Socf vole 21,pte2,p,86,1934.
dia Mon sato, 1885. ‘Type ( by original designation), Teilina
ma compressa Brocchie |
Bk 2 anterior rib® ( Dall, 1900).
rdia) Re Carpenter, 1664, * Vancouver Island to Lower
“Typ logality, Puget Sounds
pe, La and. Thomas A. Burch in Minutes #25, pe 13 daweues this_speo-
follows: * This is a typical sand shell, found only by dredging. The
s small, white, rather Short, with a thick but rather obscurely def-
a i as reales pasuetor Scars The Burches have dredged some
‘an internal rib even though” she’ specie 8
ribs It seems clear that Te modesta en, bi
~dia.® e 5 e
12/1937, off aelene Cove,’ Los. Angeles. ee, Calif.
off South Coronado Island in 10 fmse Ae i. Meee
fmbe ( Lewis) ( Willett).
fellina ( Oudardia) button Dali, 1900. * Lituya Be
of California® ( Dall). Type locality, Guneelaps. Island,
Comment from iinutes bed Pe 13 * he ce is thite.
pare in 20 Bane on. aie foctans rrivle veneine oe al
sand bab, off Redondo Beach, Calif. in 25 fms. 12/1937( Bu
From Mre AsMe Strong we learn that these were formerly
large numbers at ‘the westerly end of Terminal Island ¢ Tren
number of specimens Sete in Catalina Harbor in about ‘5 fn
Subeerue ‘Peronidia Dall, 1900, Type c by original: daetguation),
pibacens Gmeling j
Shell without laterals, Sovine seh: heyaetoe: °
the external appearance of eres ( Dall), :
L
t
-ellina .¢ Peronfdte) bode ensis” Hinds, 1844, ey
British Columbia to Gulf of California. Japan?®
Bodegas Bay, Outibornbas Ay
Comment on this species from inatee #25,
spedies but ubigaede to Bebe from ae
‘Further aa acueaion of these spectes | is” Se
MacGinitie notes Be 1935) that ‘Tellin bod
just below the surface oe he gone ce ae a s1it
‘This species is found - in eee in gate sa and a
Mr George Willett believes Anat ey _bodegensis
not identical but just similar. ri
Collecting data: Morro Bay, calif. eee beyond. ih
adult alive; Crescent City, Calif. ( EePe & Eel, Chace)
inal Island, San Pedro, Ban Diego, Calif. shore, An
i ( Burch) e
Tellina ( Foronddia) centaraber Dall, 1900. by batee
San Diego, Calif. all) to Ensenada, Lower Califo
Type locality, Santa sited Bahia Ldap had ee
-soulpture is more |
thicken on the inside of the shell
» southern form, T. sentarosae seems
that it is exceedingly
vay
the ae: of ede: arour ‘ee uae mite was ade by John
ch ® Dr. Dall in his diseussion of this species states * This form,
“may prove a special race of Tellina bedi » eee « In my opinim
e here another of the many aed in which the one Meare
hee. thon perhaps Ensenada, ieeieos I am ee in favor of
antarosae in the synonymy because it seems to be certainly a good
s if it is not a specics. I sugrest Tollina bodegensis santarosae
’ this. theory did not meet with the approval of the majority
us of opinion is to retain the two species as distinct.
z data: Anaheim Landing, Calif. 1937, Ensenada, Lower Calif.
By and many dead valves washed up on the beach ( Bureh); liv~.
ns taken with T. idac at the time of the first dredging in 8m
Mrs. W. He Eshnaur)$ ideatee plentiful on the ocean side of
and (. ‘Tremper).—
eronidia) lutea Wood ,1828. ih brotic dean, Bering gay! North
Mleutian Islands wit aah’ 40 Cooks Inlet, Alaska” ( Dall, 1921)—
1 in Bulletin 112 and other authors have given " Gray 1828! as
of this species. Dr. A. iiyra Keen ( Per. Comm, Deo, 1944). explains
follows " According to the Internstional Rules, the author of a
_ the: person who publishes it; Wood published the name from
t museum label. One could write " Wood, ex Gray MS", but
*,. The type locality for this species was not given in the orige
Oldroyd's mention of Icy Cape is incorrect™,
data: Unimak Island and Kodiak Island, Alaska, 1926 (Willett); —
aske 3/15/36 ( G. Willett); Nunivak ieiend in 3 fms.( Lewis);
A gnak Ids,1922-- Mitrofania Ids, and Uyak, Kodiak Id,,1928,
Ly yeaa ea 1932 and Raspberry Ids, Alaska 1939 ( WJ. Eyerdam).
onid tea. venulosa Schrenck, 1861. “ Schumagin Islands,
all, aa cine ope L ey according to
1938 (Eyerdam)s
el ury,1929 ‘type a by meee), Tellina me meyert Phil.
ri Dunker ( fide Grant and Gale,1931).
1 He & Ae Adams as_ ‘used by Dall and others is replaced by Apolymetse
Tisbury, Proce Malate Sots Lons vole 18, pp 255 & 258).
cular, compressed, valves pid iowased , posterior pee
testh™ (| Tryon 8.8. Conche)» _ |
( Carpenter), 1856, ef Metis alta Conrad)
Calif. ‘a San Diego" ( Dall, 192T) extended to tnéeneee,
Dre As Myra poe agi abe" on this species as follows ( Per. Comm, Dece
1944) . The type locality of Apolymetis biangulata_( Carpenter) is Santa
See date. tog 1858, not ee as given in my check liste The descrip=
‘ Be ne was ;
interne Fosaa ae sealena a. altoet. aay
~ibus in ytraque valve duobus, contiguis, vix ra
; calicosine Sees: Formerly plentiful desuae ke puted sla
also from A.M, Strong,1922 * valves not uncommon on the beacl
Island in 1912 and-1913. These may have come from dredg!
Harbors I have.taken a few small ones at different times
ee Re ete off. Recondo Beach in Se fmse oo
Ventura Coe, Calif. aeep ee ii paion Bey Sari. Diego Gos
but not common, in the Estero de Todos Santos Bay below
“1/1937 x tel ed roe igh M¢ssion ek but not ‘common
Genus Macoma Leach, 18195, Type ( ry ysoe aon eae ea
calearca Satan ON SRNL
aan or. of fecble concentric growth Lines; p
~fluent with the pallial line®,
Quoting from Minutes #25, pe 17 * The Pacific
separated into four groups, | :
1, A miscellaneous group
2. A group resembling Me nasuta in shape
3. The Me eke and carlottensis groupe hs e
4, The M, indentata groupe ‘Usually placed in Se ton Rext
In the second group, Me nasuta is easi ly f°
cee Glee sinus in. the left ee reaches the anterior adductor scar
which is e150 more inflated.® ASR het a) fe
“Macoma middendorff1i Dall, 1884, . boclas Bernky south te 18
and Aleutian islands end eastward to Chirikof? = Alaska®
Type: _bocalitys Bering Island Rea eho
® Recognizable by its high triangular Porn ar shelly
hinge plate and flattened left valve® ( Dall, 1900). ea
Collecting data; Gulf of Kronotsky, Renchatiny. 19253 N
- Bering Sea, Alaska 1932 ( W.J. Byerdam). a
Macoma incongrua ( Martens), 1865. " Aretic dabensihoun °
West and to son athe Calif. on the a Pty 19 ” ¢
Yokohama, Japane
being more inflated ed Coucitherats This. hele seems eet
Me ee arnheimi Dall, Found in soft muddy sande
Ollecting data: Kodiak Islend, Alaska to. Tacom
Nunivel Island, Bering Sea, in 10 fms. ( Lewis) 4 W
localities in Alaska ( Wed Eyerdam) » Be Dee
Macoma brota Dall, 1916. * Bering Sea to Puget Sound! ( ‘Dall
Dre A, Myra Keen * The type. avenuid. of the tec bk
oe oul reco postertor ee
it ean eel, ‘Meeke” in 60 ene’ ie G. Willett); Gnetasin ;
leutian Islands ( Wed. Eyerdam) 5 Aputen Island, Aleutian
Norberg) ( Byerdam). > (
ro a_lipara Dall, 1916, © Bering Sea to Puget Sound® (Dall, 1921) »
ra Been advises that the type oy ae ibeeens ee sore iV
et oe Ketond kan and Unilaska, ‘dredged Ge Willett); ecrate,
W joa Kodiak Island ( Lewis ) ( Willett); Atka Island, Aleutian
nd Elk River, Ore gon( Pleistocene)( W.J. Eyerdam)e Eyerdem commen nts
vies as follows “ Although perhaps not a variety of M. brota it
ly the same aS Me inguinata and should be allowed to Stand". f |
na Dall, (4900, “Kodiak Island to Lituya Bey and Bithas Alaska® be yes
Type loeélity, Sitka Harbor, Alaska. | koe
shell like Macoma calcarea, but more slender, more equilateral, less
| with the pallial sinus more regular, oval, and confluent below,
the posterior end somewhat recurves dorsally” ( Dall, 1900).
ng data: Izhut Bay, Afognak Island, Alaska, 1932 ( Eyerdam).
ea Gmelin, 1792. “ Arctic Ocean to North Japan and to Monterey — eae
+ Circumboreal.® ( Dall, 1921 ). Type locality, Iceland or od ia
i 4
eae Johnson tee the alert ne aa) Greenland to
ee posterior ‘lseaie more pronounced. Tho species haeasd
at least, is not littoral or estuarine" ( Dall, 1900). __
data: Wrangel, Alaska in 60 fmg. ( Ge Willett); Punuk Ide,
[5 fmse ( Lewis ) 5 Izhut Bay, Afognak Id., Alaska, 1922 (Eyer=
the following sets in the Eyerdam colleetion : Godhaven, Greenlend
haa lek,Headland, Spitzbergen, Koefjord, Swedish West Coast. .
sshayes), 1854. ® Aretic Ocean ,Bering Sea and eastward
Islands. ‘Circumboreal.® ( Dall, 1921). Type locality, North~
os is c characterized ny its oval pouree ee form, low. poster-
alt, 1990 was: euperantiy, placed in the ee moesta -
+» a number of authors use krausei,e Johnson Mo 11 ~~
Lease pieh ts 1900 from Greenlands — f
r 18387. © Kodiak Island and Cook's Inlet, Alaska ,
goon, ‘Lower California ( Uette 1921). Ty Type locality,
AS} arf
« Minut "425, De i o My nasuta can be readily distinguished
Dyhtcie coast peenee since the wee sinus in the left valve —
age epoctes™ ( Fish aad Gata Bulls anny Calif. Fish and fie.’
roedaely i ee we collected Me nasuta in papha Bay and observed
antnrls were apreabed around — nas:
that these specimens eatented | th ‘sip
the surface of the muds ® . Mine bun Pee
goes down as deep as 25 fms off i Calif and
Calif. ( Burch); Craig and Ketchikan, Alaska ( G. Wi b.
species from W.J. Eyerdam follows ® This is our commonest Macon
Sound. It is apparently uncommon in Alaska as I have ont 14
‘simens on Afognak Ide and in Prince William Sound.®
Macoma frus ( Hanley ) , 1845 ( Macoma inquinatea (
to Japan on - on the west and to Monterey Bay, Cs
extended to Terminal Island, San Pedro Bay Galif. (
Dre Ae Myra Keon advises as follows regarding this
Comme Dec. 1944) ® Salisbury, Proce Malas, Soc. vol. 21,
out that Me irus of Hanley has priority. It was descri’
in 1845 ( Proc, Zool» Socs for 1844, p» 166). Salis
(pls 12, figs. 7,8), which is at the British Museum, and
of Deshayes Me inquinata ( $1. 12, figs )e The ae
-ley's species followas |
Tellina irus ™ Tel, testa ovata aut ohevartes crassa ( in adul
=tricosa, ‘Subequilaterali, impolita, extus. intusque elbida, co
fuguloea; rugis interruptis minimus, confertissi ie
vis gonhenng ma gis minusve arcuatos bilan one ace ee
Epa tae veces costa. unbonalt subobsolcta; Gentibus:
1,103 lats 1.40. polls : ay] ee
Comment, Min. #25, p. 18 ® eetiamieenee, fr
sinus does not reach the anterior adductor scar
Bay, San tater a, 1958 5 Fort Orchard, Washs eae ‘and Alich Po:
Wash. common ( Burch) 3. Akutan Idf ( Norberg) $ Atka Ide (Wed. &
Mr. baa aaah obviously pon toes irus and, inguina ‘
variety of came, inquinatas™ Brevdahs’ aleo ee ‘the. fo
notes for M, inguinata ° Not uncommon in Puget Sound;
Eyerdam in Alaska at the following places, Izhut Bay,
-fania Id.,Knight Ids, and Unalaska Id, Often togethe
Macoma nasuta, Saxidomus giganteus and tothe :
Macoma inquinata arnheimi Dall, 1916. Kod: ak Tal
Ban Francisco” ( Dall,l9el). Type locality, Kodiak I
Dall, 1900, described this as a variety ° ‘Shell
inguinata but shorter, and relatively more plump oon
In Minutes #25, pe 19 the authors expressed the
seems to be identical with Me ineongrua ( von Martens).
However, we have the following note from Mry Wade |
collecting localities . My specimens which were ti
-ional Museum do not resemble Me incongrua as has” be
much closer to typical Me inguinata. Perhaps the so
~ent or there has been a mistake in determinati
from: Afognak Id.» and Raspberry Ide , in Kodiak ids, ¢
Knight Ide, in Prince William woehias e Alaska? and Akutan
Ie Norberge ser «a tt
c beeen to Ban se
ntact ipl eS Sth
croation caectk ea Ria Gateral tous “nulliss
ty ae eae Habe in Oceano Areticos
be ryatie on the lower aa but. the eae are eae
oe surface has a donee d [pan ‘The remains of ae
\
ea eM ey of ay we
spocies. ah. the iscussion John Q. Burch made ve) ON ,
* an examination | of the sets ao
the Par mens are quite different ae
chnson | oda! of Atl. Coast™ gives the range of
pe in deep water to aay e ee is apparently
an bees pall Ids, ines Me Be ae Aled
Sound, Auge 1936, also Raymond, Washe and other .
poast and along the (Oregon co&st in bays (Burch); —
Alaska 1923s. dredged in gud (Wed. Byerdam). Mr.
his report as follows ° ' This variety is quite
ae the more ‘than 20 lots: of i ape Macoma
he ting bart on a. Wecoae! Magenta var fragilis
zhut — Bay, Afignak island, Alaska and identified ©
1 comments on tnig7 As. this. collection closely
me Me iy balthica it is ae that Dall
NE aes, ours a variety” -
‘poseibility ¢ of not one a two or more
ry dist species occurs in shed Lak: obey
ry ¢ Sater on the coast: off California/ It Shs
Lia two ob Gan an” & Dall, bal at We
‘
se
it sedmed gunlikely the species is part of our fauna®,
Sion Bay, Oreg Oregon ( Keen)e Deseribed from the Pleistoc
TsTands, Lower California® v Dall, noe "ype ieee
eroyd and the ony additional ‘commen: bar
* This little shell looks curiously like a.
differs little from that of Nap ton longipes |
‘Macoma oneilli Dall, 1919. * Dolphin and Un
However, it has been generally ontaben irebn Wone ¢ a
Myra Keen advises as follows ( Pers Commy Dece 1984)
oneilli because the type locality is so far east of rey, ape,
comments * Not known from west coast®, ‘We will, ,
Macoma kelseyi Dall, 1900, " Living in Puget Sound
so listed in Bulletin 112 by Dall. Dr. As Myra Keen adv:
( Pere Comms Dec, 1984) ® _Macoma | kelseyi was collected
the Oldroyds. Recently a Stanford student, Maxwell Be Doty
valve of what I identify as Me kelseyi: from Coos” Bay; t
the specimen suggested that it might be ay i
this constitutes a new record for ‘the orice: Hey
ana ¢ Boe, than any rs of Me. naaedt yet yenerdoec® i
-Macoma quadrana Dall, 1916, ® Boca dé Quadra, praia yecunistae le
~~ Calif, in 284 fathoms.
“luscula Grant and Gale, 1931, 1 Mere tte ae
been calling Me planiuscula is really Me quadran
Collecting data: Dredged off Redondo Beach,
( Burch); Ketchikan and Craig, Alaska, 2550 fms
BeC. in 5 fmse ( Lewis); Olgas Washes ( Engberg |
Islands ( Eyerdam), ‘ | TE AS i : Sear ia
Macoma planiuscula Grant end nny. ‘1981. € Ceiba leteae arine
Pleistocene Mollusea of California, Meme San Diego Soc, Nate
pe 372, ple 14, figs. lla & 1lb, pl.20, figs, 8a & 8b)» Ran
Odean to Puget Sound. (. Dall, 1921 as. OnmepERSUaaAy fype loca
Island, Alaska, Recents
Comment, Minutes #25, ‘Be 21 * Seo. ‘conment ‘unc jer Me
confused. Me carlottensis with: an undescribed ‘species tide 1 the; :
planiuscula, Therefore, all references by ictal to Me carlottensis ar
reality to laniuscula,® “a ee
Mr Gare Willett makes the following ‘comment here
except Nunivak Islande® |
= carlottensis ( mnikoawedg: 1880. im heouiay Govan end
Yagoon, Lower Calife® ( Dall, 1921 for Me inflatula). Ty
Sound, Queen Charlotte Island, British Miborp pure! a
Comment, Minutes #25, Pe 218
what is now My planiuscula he Nedevaesped Me carlott
Therefore, Me inflatula is synonymous with sarlotte
#flated subtriangular form which | is. distinet TOR,
Macomas» |
Collecting datas Dredged commen off Redondo Beaen, Cal
6075 fms« mud bottom ( Burch); Ketchikan, Craig, Dall Tee)
in 30#50 fmse} ¥ictoria, Bel, in 5 fms« My Lovie )e bai Td
“berg) ( Pyare)»
oval shell, with. iokey yellow a ee ( Dall, seen:
«ld eiinle ‘1864—— . Puget Sound > a Jolla, ease ( Dall).
1d “must be ‘regarded ns A doubtful species. The two Laman upon
w s founded belong to different. ‘species and neither agrees with
a
eeaorete A large broken are with the teeth wanvane probably
ch dents, & nd is really too odes for satisfactory determination,
; from Baulinas Bay, California, collected by Stearns, which have
h the specimens named by Carpenter, may, belong to a vali@
earry the name.” ( Dall,1900).
Carpenter, 1864. * Fuce Strait to San Didgo, calir.t (Dall)
Neah Bay, Washington. ae a
ent, Minutes #25, ps 22 “ .. cannot be confused with any other —
y are found oeeasionally in our bays, but live in shes low water
ae) very uniform, brilliantly polished specics® (Dall),
g data: Santa Monica, Calif, 5 fms. 12/1935; ‘naheim Bay(dead),
say, 2/1937 by shore sercening; Monterey, Calife 8/1937 in 10 _
and 8/1940 in 25 fms. shale and mud; Redondo Beach, Calif «
25 fms. gravel and sand, commone ( Burch); Dall Island, Alaska
e + Willett); washed in on Terminal Island, 1918 ( Chace); Van-=
_ sandy beach,1931 ( Weds Eyerdam) ¢Mission Bay( WeK. Emerson)
a ‘Dall, 1916. "Island near Cape Halkett, Arctic Ocean” ( Dall)
cles is mentioned here beaause Dall listed it ‘in Bulletin 112.
has. never been reported from the west coast and is apparently
fauna and should be omitted from west coast faunal lists. 4
‘Dall, 1900, * Lituya Bay to Gulf of Georgia® (Dall, 1921).
uya Bay, Alaska.
utes #25, pse22 © This species looks SeiNen iy like an
nus of Tellina) but has the hinge of a) Becomes Lives on sandy
rhaps” with rocks",
Ls tay Forrester Island, Alaska in 50 fmse, Ketchiken, Alaska
» Alaska in 20<30 fms. ( G. Willett); Izhut Bay, ae: Island,
22 Weds Eyerdam) C os sep rent ay a very rare shell
Snag 1869. - Type i by subsequent i iaeranar ale Dall,
v8 Jan Ppsteay Calif.
ak ” Like a young M, secta_ but bonis nde
mobs teat peaetnsae! ‘shows’ This species cclne iiyee barked in
sand in bays but is found in deeper water."
ting data: Off Redondo Beach in 25 fms. sravel 1938-41, Playa del
12/1936; Morro Bay, Calif. 1/1937; very oommon; Surf, Califs .
nmo: beach; off Monterey, Calif. 8/1940 in 20 fms. on shales Estero de
nta anda, Mexico aaa ( Burch de nag
Banta Barbara Tsiands ‘to. Pan :
and more pointed end and a deeper flexure
gravel, in 50=75 fms» muda nd gravel 7/1938, also taken washed in
“race has been ‘Shouent ty some to be. enbey of a. caepeteins name
they are obviously the same species and the differences in all
Comme Dece 1944) * The ie oe oe if the Ea aon a (
ie: in loeal waters. If tina Be the specics | on thie the Noa
_The bathymetric range in our-experience takes it dow as dee’
Redondo Beach ( Burch) 3 Tacoma, Washe ( Ge Willett); m
Puget Sound where it is often quite common on any mad
sinus deep, dounded® ( Tryon, 5.S. Uonene }
Macoma ( pltnashaah Auden
San Pedro, Calif. Rea |
© piffers from ye nauatees in. being |
C Dall, rf
Mr. George Willett comments on this as Lacan) Meenas
race; individual or sexual variant?® 3 ee
Collecting data: Dredged off Redondo Beach, calif. 8/1939 in
Terminal Island ( Burch). ] aa
Macoma ( Rexithaerus) secta (. Gonvad), leeo. # venwourer Isl |
to the Guif of California wil Dall, 1921). Re La gecik ao,
Dall. '
Aieeaeie Minutes #25, De sia - We have never found spect
merely caused by the habitat. Mre A.M Strong advises on ‘this p
‘In the discussion of this mene John. dy. seperate coe
“6 Dr. Dall ie ‘the uepent in the roe of ‘this, iceman We b
based, then we can erase the Japanese connection with et cal one! Bi
paper published in 1940."
Collecting datas Our experience hae eee ne "ipa His
species to record in all bays and on all beaches from Morro -
( W.J. Eyerdam). argon,
Family SEMELIDAE Lia ec hg a) Se
egler ~~ Tellina proficua Pulteneys
* Shell rounded, subequilateral, bene eel rae
slightly folded; hinge teeth 2.2, laterals elongated, dis
valve; external ligament short, cartilage internal, an
Aen Coy ME tee eM ts aah ( Fh A snes)
: ns ce dare, Calif. tnd tlewpore Bay i miter
« and young at Point Vicente ( Chace) sMission Bay (emoreen)
Gould, 1851, Boston Soc. Nate Histe, 42392
f. ( in Oldroyd collection at Stanford University), to
rdan)3; Scammons | Lagoon, Lower Calife, Mexico ( in Hemphill
ford aia tel ‘ Grant and hi gt cules ype canes,
ns bie. eu Was. aor ‘a. cai! one’ gpd cthae of this
a Banda across the bay from Enseneda, Mexico 12/1937. There
“reason hot to expect it Oeeneione thy as far Borer as
( Burch). i? | 4
Dall, 1915. hi ‘Sante, Cruz, California to cule ‘of california :
lity, Sante Crus, Calif. 9) 1, es
" This 4s Semele rupium of California authors, falioned
Sowerby) 1832", | * ‘Some are still te to y phe thie |
Type meats.
ae oo one fc atge enced years ago Dre GiDy Hanna
Eeoneane of this Bpociess A number of us have 'some
have: Dipl it ne great numbers off Redondo Boagh rein
‘low es ee and never in shallow watere Our. shallowest
{ poettion, is: U.S. Be F. Sta.
( ay cots
8 rather ie ‘poor’ ae of ite 8 eken given ‘in Oldroyd. We have ae
a specimen said to have been taken off Californias Mr. George
it in 20 fms. in Sta, Maria Bay, Lower Calife Pilsbry
! Guaymas and San Juan oes acide ekg mast be a rare speciess —
Semele californica a Adam
Pe 96. This species is not
by any member of the clube However .¢ is mentic
by Keep and Baily, 1935 with the note ® occasior
though their heue home is in Mexican Pal ghee The
ir. Ay Myra ones Povlages Ee
"8 S. testa Micniorovale, aluscanl eters |
striata; transversim suleata, liris elevatis, :
estitiis ¢reberrime longidufinaliter striati:
subtruncato, valde fleouoso; ned raberes
California® Rei i
Semele incongrua Poepeetae, 1864. * Monterey). ‘Calif, be an Coronac
C Dall, 1921). eRe Lote ia Santa aide = no
on sand bottom, wherens eeu came 1 UB LE
We have dredged it off Monterey in 20 f
Catalina Island in 25 fms, off eae esi!
“ern forms to warrant the pentyist, name Ww ! (
a incon rua monterey’ Arnold, 1903. Mems— ali
166, pie 15, Piges 3,58 ( not 4548 a
Arnold as a variety of S. pulchrag but. the fig
a eee diene 2 oval, dishes pe thin; Sig
seqeuay aboad posterior a much |
fold obsolete; cartilage~process deep, 0
in each valve; lateral teeth distinct;
solaeads interiorly.s Longe 23 mm; alt. 17.5.
Collecting data: * I have montereyi fos Le §
( G. Willett); off Monterey in 2@ fms. ? ( eine ale
Semele pulchra Sowerby, 19426 Monterey, Bedi eomtia: to!
Type locality on advice of Des Ae ae bab tones was ,
_Eeuador.*®
Collecting datas We have ae ‘this Bodie in
habitats. In the spencer as Point cots coneee Hah
¥
Bay. Vi ave ten Sher it fecn nied. Rocke, ‘Gan Bowe
and on "the open coast. i Burch) _ Seve a olay
Genus C umingia Sowerby, 1833. ‘Type nt by subs
Cumingia lamellosa Sowerbye _ aie aed
¥ ee transversely Wee et wadiptg, rounded in fr ighire
) form
eae of buted hoe of
ie eee 7, ee a
Fe ea ‘teeth: prominent. Tenet, one tnch and hone fourths
Santa Barbara, Calife =
A ee is, ae to great Manetion! ane to confusion
Se / ean: Sones en eee 25-41
anes Due to ua fae up in ‘the use a the names
limits of the ranges of the threes" Lar pa
at This ee ee is a. nestles. taken in rock crevices.
it at head localities in r
lA
Hey DONACIDAR Ou A)
Genus Donax Linnaeus, 1758. a by su
Donax rugosus Linneeus ( on advice of D
Tite a designations of Herrmannsen, — 1847 and- 7
* Shell trigonal, wedge~like, closeds front produced, de
side short, straight; margins usually crenulateds hinge te
1-1 4n each valve; ligament external, prominent. palatal sinus, eep
~zontak® ( Tryon S. 8. Conche)» i ia Se
Santa ‘Barbara,Calit
Donax pala fornick ‘Gonred, 18576 Fhe Aaa
( Dall). Maxwell Smith in * Panamic Marian Bhelis® 1944 gives th:
of californi6a south to Ecuador, -but.he places: ‘under it such.
Hanley, and if my. specimens a re correctly identified culter i
another - es Stabe Type ma etad near ee pepheet
below Geena; Mexico. We ae never + dredged it pnor taken
coasts ( Burch)e. _ ie.
Donax gouldii Dall, 1919. ( tienes obesus Goula, Donay, leoeigea ‘Desk
¥San Luig Obispo ( Keen) to Acapulco, Mexico 1: Dall). Type Page ty
Diego,-Calif.
Collecting data: Our experience has been. to find. this a ‘ver abundant
species with a preterrds habitat on sandy beached ‘along the open Be . eds
Nearly all sandy henehed from Long, Beach to. ‘Ensenada, Mestiow: hav colonies
of this species, While it is a shallow water or littoral species we nae,
brought it up with dredgings off Redondo Beach down to perhaps 15 fathoms
It was at one time of commercial importance below Tong Beach bei g Cc
‘)
in dane to make CheMee ti ai a ty ae
- Our Common. Wedge Shell “By Dre We0s Gregg”
* As pointed out by Strong C Nautilus 37(3)381. and also by Gee
Gale ( pe 380) it was first named and described ‘by Gould as obesa'
The name was preoccupied by De obesa d’ Orbigny, 1846. Then came |
Deshayes, 1854, which was ec be De cee ieee antes o
-tion in connection with a proposed new name is: euetislent’ he perth she
new name. However, in Bulletin L125 ps49, the name ¢ uldii is not designated
as a new name but listed thus- Donax gouldii Dall, 1 Inc Leating that 3
the name had been published in a 1919 article. Did suki article ever appear —
or is the use of that date. an Sernor® or just plain incorrect usage 11
have searched in vain to find any reference to the 1919 articles In conne -
“tion with Dall's name, gouldii, Grant and Gale refer only to Bulletin 112,
which would indicate that that was the first publication in which i ha
appearede If any one knows ri the 1919 reference he should not keep
secret, Oldroyd gives Gould's original description and figures Goul i
typese These clearly indicate that the shell which Gould described was
short obese form which almost entirely lacks the colored rayse This form
is also illustrated in Johnson and Snook, pe 452, figs 451. ‘This typical —
form of De gouldii appears in the collections of certain southern Calif:
-ornia collections under the name D, conradi, a much different he
does not occur in our waters. There is a moh more common form -
more elongate, less obese, and conspicuously marked by colored
been applying the name ous to aie common form, Is this me
S cuohas Neoniad a. ‘an hs
he short. obese form ae
1. ee oe more common forme
spear that a) 1s ords of D. gouldii are based
n i crether than on “teieal pulant A Both” forms occur in
os Sora
2 of thom should bear a least a subspecitic names.
secrete: andes 1843. While this species. ‘is listed res Bulletin
6 ranging from San Pedro south to Peru, it is certainly of
fauna and not of that of California. We shall, Perecetes omit
‘ r California Listas >
radi Deshayes, 1654. ® San Disco, california to Central America®
: anaeety ante of periter teat
.d = ala ieee until THe: foie | ce, Our ‘eaiy Ssoetaeny ame 7h
of California’. Mr. A.M. Strong advises * D pafunctetcetriee
came er eaety do not Patan in our ae o.
Garidae | ey Paanmeblidae; par oMuiartidas) appa
jari Schumacher, 1817 ( Psammobia Lamarck, 1818) Type ( by, ‘ahaoluee
Bias ae oes Schumacher -= Tellina gari spengier = “~ " Psammobia®
CK ‘fife _Gront Sele es 1931.
i athe ai y coniously, in its blunt and inflated ‘form, with a distinct
Beerior T eape® ( Pally ele es
“never open pee ne any Gee of ‘the club,
Gari. Gobraeus): ‘ealifornica ( Conrad), 1848. * Japan, Kambena tke, the
Aleutian Islands and south to San aes Calif. Mok Pally 1921 )e bie: loos
ee. Californias |
Re gees ecting data: tas’ lege arianee. has been to find this a. neat eect
+ We have dredged it off Monterey in 20 fms. on the shale and
liso, Patent it from the Redomdo’ Beach dredgings as deep as the 25 fathom
. Probably the best lmeality we know of to collect this species is
1 of beach between Sea Beach and Huntington. Beaches There is an off
Ong. there and vee kes storms it is dee nos to finest up. aoe
“alli, Mactre etra hetipht lid eeee: We cave
in the bays but have never been fortun: no
in southern California® ( Burch) Sitka and raig, Alas
Gari ( Gobraeus) edentula ( Gabb), 1869. ® San Pedro and ¢ :
‘to Ba an Diego™ ( eee sia Te Lene Pliocene of San Fer
that the npednee: was there but eee Beton our Aveda
pair or two taken by Mrs. W.H. Eshnaur on Hee Island
but collected some 30 years ago Burch) | re
Genus ee Lamarck, 1799. Type ( by 2
~tus Gmeline ,
Saneuinolaria Se8. * Shell medevave yy, levee) Ahab. cakes sh
=sotored or white, with short, inconspicuous nymphs, ‘two bi!
in each valve; pallial sinus deep, widest in ront,
ial line below, the epidermis thin,dehiscent® eh Dall,
eee, Nuttallia Dall, 1898. Type, S. nuttall4ii- Conrade
"Shell large, suborbicular, inequ valve, more or less”
right valve slightly flatter, the posterior cardinal in the
obsolete; the pallial sinus narrower oe eee and auiduenté a
pallial line® ( Pall, 1900) «, te :
f |
Sangwinolaria ( Nuttallia) nuttalli ‘Ooaean 18376
Zena Bay, Lower Calif.” ( Dall, 1921)» Dre at
Monterey, Calif, collected by Mackenzie Gordon Goan "ao Macbinitte,
eality, near San Diego, Calif. WN a Ube Ne
_ Golleeting data: While it is aie that ay ya
on the beaches oseasionally fromthe open eerie enc
Loualities as the lagoon at tin on) Ventura ‘Bee y Anahei et
the speeies as a rate about 6 to 8 neces below ‘the surface of
( Burch). ; a Vp a ae RIGA eannap CRE
% fPae hae p
Genus ee FENee 1853. fue ‘qellina aes Li nas
® Shell rounded~triangular, smooth, nether: solids Me
each valve" ( Tryon S.S. Conche). _
Heterodonax bimaculata Linnaeus, 1768. * Monterey, California to Pan
s0 Atiantic™ ( Dall, 1921). fecal gives the inaaicgte.
to Brazil®,- aaa
"Collecting data; Our experiones has been ae find ‘this ‘Bp
opie a definite stratum along tne ‘aes of Hee
8 or 10, nearer the water, below the stratum of th
to another strip in which Cryptomya californica is
associated with several other genera such as Seme
seem to be almost the entire fauna of their parti
is another bay in which this species seems to
conditions. We have sets from the West Indies and are
slightest difference between sini ( harden 4 eC aN al
cs
wii isa a aon
$
See en ee
a ae pat
3 es
Brae
j
.
s
), Solen guinensis
each Valve, Simple,
straights pallial
in s ringer neutral part eeptdelig eceicdenne with ithe!
eda pam or narine® ( Dall, 1900)»
tana’ iG Conrad), 1837e Monterey mat Calif. ( MacGinitie.
f Tehuantepoc ( Dall). Type locality, near Santa Barbara,
ing data: ‘Our cugrepens | has been to find this a very common
in Meu todo. of auch bays as Anaheim, ‘Alamitos, Newport, ‘Wasion,
below Ensenada etc. ( Burch )s * I have a growth series from 3 to
ng, taken alive in the Venice @ahal a short distance from where I
sifinis ( U.B. Adams). There ae not the sade abel suggestion
ation™ De Ware ate
fg) aN
Ae oe yory anna bd ae g a without careful study, MESS Feet
em from Lower Calif. we started checking and looking. The result was
pe tense The beaks. of ‘the nine eee are definitely behind
m loval waters: isa iene set collected vy Dre WoO. Gregg. 4)
nel near Playa del Rey, Calife siti
wd
S eecpldurs. barrens (1837. ‘Type, Solen divisus oubeigicn.
ith an internal radial rib, ventrally directed from the submedian
pees pinewives nike Ta elus.®
of the subgenus Mesopleura and the internal rib is apparent. Then 1
“pleked out a few sets of our Tagelus subteres and perhaps with the assis-~
Anmagination a vague rib could be noted on an occasional specimen
en then it would be preferable to take some else's word for ite In
oe see little of anything to encourage me in a division of our Tagelus
; into eee Therefore until advised, I propose to ignore PUuBene Es
a” e ei ues ea. ehoks Bay, Playa del Rey, Mission Bay, Estero
below Ensenada ete, ( Burch); * I have three or four specimens which show
internal rib; three or hain eo out of that many dozen examines.
os Woe Grees) u
i ceeion Cate, 1857 3276
7 “affini® Cae: sed subtranslucida, violacéa, extus linea
eee
“anc Pinel jrebteantioye nonnullis sears epidermide politissina x
Seen) maxine erdanith dellositate ab ‘umbonibys, linea fusca exter=
oe conveniente, subexpressa decurrente.
Known at onee by the brownish violet colour, glossy epidermis, and
ioe Peering: with a gata ey prominent ridge within. In this res-
da number of sets labelled affinis from California but they all ororee
SS. |
‘Note by John Q, Burch ® I have just picked out a set of Tagelus divisus
would be from about cartes Barbara south to Panama e Type 1
4rf the same manner as Te subteres is frequently found. They
As I remember it Dall stated that Carpenter ‘based his. specic
ay
aout ‘aaone rs resembles Me rf
~mediate between politus and
#mediate: in the prolongation of the nym
eplays 2 small distinct, muscular impressions
“ior: adductor, which is oblong, ‘but well def
off, irregularly, uniting with these twos in 6. af
tapering, uniting with the others which a
specimen measures longe 048, late 1,45, alte 123. wane
~The range of this species ds something of a problem aus £3
identificationse However, Dre Keen in * Abridged Cheek List” giv
it
Collecting data: * Have specimens | from ‘Termi
by Dall and a set from Magdalena Bay collected by
The Terminal Island shells were collected alive: on the sur
light colored specimens — Of Te SEE otal living in loos
daos
fixed burrow could not be made, but *
Lowe had specimens of a quite different: ‘shell from further §¢
checked up in the We8. National Museum and decided were th
material and it was difficult to place ine ¢ AeMe
1944); ® We have Tage lu élus politus from Laguna ‘Beach, coll
‘Dall reported it oe San Pedro ( Proce Acads Nate Sois Ph
1898, pe 59)" ( Dre Ae Myra’ Keen); ® See Maxwell Smith, Panamic Mari
Shells, Pe 64: " Tho late Dre Fred Baker considered politu
californianus". I have a set of. Ta elus collected ms
Strong adentified as polituse They match with specimens 0
wtioned growth series of Ts californianus (— Dre W «Or eee Li
specimens from San Pedro, collected by Dre Tremper, end name ‘po
are much lighter colored than subteres, and somewhat darker than
They have a central internal rib which appears to be lacking 1 af:
‘either igi: or indistinct in pee ks eet
+ Neer ans
, —,. f Ley
Cae \ N \ Ne ‘ A
} Hi Fan a
F aie 5 / i (ae) a il
2 /
Heterodonax ©.
Ue
Donax spe San Diego Bay
Sonax gouldii Dall San Diego Bay
For discussion of the species figured above see pp 20-21 and the
following pagée
‘eae 7
an papeged
~ent thet ey are aiatince aeeelce ke
sings that not only is the shape of ig
hinge is definitely different. =
I did not bother sat (els in ee ser
nae ale .
ne = as aiid z
enti pea
Pentti
yeh
it At eae ne tem |
Fud
mr SCG rat rate a oe trie ree
g Belek irae ee
an L) alia evaegiilics
* Dall 5 be
3 suborder meets: scar. Manenehay ierertss oblongs spelt he
pes the adductors sinus short and vaca a Cottnm Lk
“)
( (he j : Ky \ i
} I i ae pet ie ah ie ats , ip aha
yllee ae datas Mined vad. off. Moekeeey Calif. in 10 to 20. fms. on shale, — |
\. oint, Seattle, Wash. 8/1936; off Redondo Beach, Calif. in 20- — wes
: and sand erat off San Podroy Calif. in 7 fms S/S | cae
Nl oy, aay tos 1900; Smith's cae, ‘Boatele. Wash, 1909 & ae
» Kitsap Coe, Wash; * This species. lives on sandy md flats at ee ee
rk or below. It does ‘not seem - Re. common « T ae only found att
(W. a Eyerdam). ee i) a
Carpenter, 1864, ° Santa Harare; Gaiire to the cule of Uae ae
Type. locality, Sante. Barbara and San Pedro, Calif. eee ie
eM. Keen). Dr. Keen also advises " The est in Old= he
So is le pe aa
\
Vy TH Bay :
Pp terior horizontal tooth; the valves Wet more or Less
Dall, 1900). oa) oe Me ee i
Porhtous’ pall, 1899. * Monterey, Calif. to cut of cenifornta®(Dett)
‘ ff the telaad, of San Pedro Martir, Gulf. of Cae Vo Le ve
atement under rosaceus that hs cat in Praporscs of that species Tee ih
) Eneis poe el ee
Low or vonowered Coipletd ebeeunens The poetics is” Siits fragile:
te in our collection labelled as from San Pedro Bay and from
Island collected by Mrs. W.H. Eshnaur and others in the years 4
> ee of Deadman's Island etc. Some of the members have repor=,
in ica hay { gael feesenene in the Los Pnesles, Museum ee
oe a iia von » Muhifeld, ie11,. Pypds Se radiatus Linne 7 fide»
900). " Shell ovate, flattened, straight, es a rib or olaviele
y atrocted; ue as epee) but more feeble" Au Dall, 1900)»
Auetas (. Canned), 1837. Golines cay calif. ( Clack, Noutilue 28,
ee cantes a: Lower Calif. a Olas a Type locality, near Santa
by its shorter anterior. Rem io ue aes Bhar
by its more arcuate ventral margin .* indies:
Collecting datas Taken Littoral: in the sand ot to
Bay in 15 fms.; taken titcegat: at Pacific Betich; eee: c
Siliqua media ( Sowerby),1839. ® Arctic Ocean and outh ,
Ber ing Sea, a and eastward to Cook! 8 cali seen st ee
to Paria: They furthermore pieaas ae in the. syaonyny fe
Siliqua alta stating " The form figured by Dall as medi
deseription © together with a a labioncel in ‘the et ee wo
young of 8. alta. However, we have the following atement
Keen ( Pers onal Cons ak 1944) bi The We Tepes hey of §
of Siliqua on the West hack, ‘there are four recognizable pec
“mouth and McQuillan, ™ Relative: growth and mortality of Pacif’:
clam( Siliqua patula}..." Bull. Bureau of Fisheries, vt. 46, Bu
noe 1099 for 1930,1931, which may be obtained from the
fe apa Washington, D.@. for 15 cents), To quote the
-" ‘ve consider thet therc are four species of Silique on t
North America; S, media,found in the Bering Sea and ots
in Cook Inlet and westward to Bering Sea and Siberia; S$
Aleutian Islands to Pismo, Califs.; and S. sees . from
to Lower California, All authorities agree th
are distinct species, The present view differs from m that
respects. Sp» ae ee and yetoet Be
alta , considered by Dallas a Seer oF Bar: ad Rays we f
entitled to specific rank.".s.* The most notable character :
the pigmentation. All exposed parts of the mantle, ‘siphan; €
colored by a chocolate-brown pigment which immediate 64
from S. patula, which is entirely without this colo
sina patu a ee Dixon), 1788. Arctic Ocean to Pismo,
e locality, ity, “ Cook's River, northwest coast of nee
The discussion under S, media should be notes
species. Grantand Gale, 1931, Be 588: report “ tae This” pe
as the edible razor clam, has. been thoroughly bigs) the
“er beaten appearance than their southern pang On the e
form, alta , usually considered a ie of petuls sh te shown
‘
-formi ng. as seaward side of ee sae ay
C tian Islands ( age a ee
od eyarean) vt aan
® arctic Occan, south to ‘sacl ae
oo oontsey
i ond smo) 1s29,. ©
vee Grant and by aes
| Pees, ae Willett mentaons: ‘the et: stated. can
that the soft parts of alta are of a different colors
Unalaske Island ( G. Willett); Uyak Bay, Kodiak Island
Ut © This is a vey distinct” satis! and or
n® (Weds are |
et a et RY
. tr
: nee Roar; Ta) hel
which cai, be. felt: bub Bou: easily seens
asily distinguished from the above by its
Decne sinus which iene anterior to the
Tagelus chi enepeiane (Cones) 1837. 5 Mera Bi ‘Be i
( Note* enlarged drawings not same Pree as smaller
; ; i . pecae ea dive. Po
‘these do I 3 ind cae mention of the Taek)
Siliqua lucida ( Conrad),1837
. Santa Monica, Calif.
bcc ess of Y Mas cJe
Stan,
x /o0
ne
a nee ae ree Se
ee Ri
bemiaetions and iaateaae me
Minutes # ae, pe 6 Dre Re Myra Keen advis
Transennelle tantille ( Gould) is Sante Ba ara no
H Se
Min, #42 p 6 Dosinia ponderosa Gray ,1838,_ eves oe 5
La Libertad, Sone, Mexe 19853 Pts. Penasco, Sonora, 1
Acapulco, Mexe 1930 in 20 fmse ( Lowe); Guaymas Sonora
Conception Bay, 1932; San Quintin Bay ( Orcutt); Mazatle
Lagoon, L.C. ( Capte Porter); fossil in San Diego Baye
Mine #42 p G= Tivela stultorum ( Mawe),1823. Cambria, Calif,
Turtle Bay, L.eC. ( Hemphill); Long Beach, Calif. ( Lowe); Coronaé
( Bristol); San Diego, Calif. medium and small ( Hemphill and Ba
Min. #42 p 6= Transennella tantilla ( Gould),1852. San Franc
Santa Barbara, Calif. ( Button); San Pedro, Calif. and Puget
Min. #42 p 7 Amiantis callosa ( Conrad), 1837. Magdalena Bay
Porter); Ptae Banda ( Orcutt); Todos Santos Bay ( Hemphill);
( Oreutt and Harrison); Coronado Beach; Anahein Landing { Emery)
also given an Ortutt record of this species from Santa Barbar
this would be an extension of range northward 100 miles and shou
Mine #42 p 7 Pitar newcombianus ( Gabb), 1865. La Jolla, Calif. :
( Wilson); Catalina Island (Lowe); La Paz, LeC. ( Capt. Porter
Bay, L.Cv in 10 fmse ( Lowe, 1931); Manzenillo, Mexico in 20 .
Conception Bay, in 15 fmse ( Lowe); San Jose Id. ( Lowe); La
‘San Carlos Bay and Angeles Bay ( Lowe, 1932). Note* This Manzanillo 3
by Lowe is an extension of range southward being on the mainland pe
100 miles south of the mouth of the Gulf of Calif, ae
Mine # 42 p 8 Antigona fordi ( Yates), 1890. Long Beach ( orcutt
( Wilson); La Jolla, Calif. ( Wilson); Soe Coronado Ide ( Capte Po
a tela Island in 35 fms. and off San Pedro ( Lowe) 3 ‘Pte i
Chace). : ‘
Min. #42 p 8 Saxidomus nuttalli Conrad, 1837. Ben Diego. Bay 6 Br:
San Diego ( Hemphill); San Podro and Sante Barbara ( Lowe)» A
Saxidoms giganteus Deshayes,1839. Puget Sound and Sipka ( Lowe)
ashe and Oréas ide, Puget Sound in 10-20 boise ( Baker )3- Ideho
Alaska ( Stephens).
Min. #42 p 11 Humilaria Kennerdeyi ( Carpenter in Reeve), “1863
Island, Puget Sound ( Oldroyd) ya
Compsomyax subdiaphana ( Carpenter), 1864. San Pedro, 15=30. fms.
Drakes Bay, Puget Sound ( Oldroyd); Orcas Ide in 10-25 fms. (
Min, #42 p13 Protothaca staminea petitii(Deshayes) ‘Sitka,
This record from the San Diego Mauseum is of particular inter
like to know exactly what Lowe identified as petitii. Species
Mine # 42 p 15 Liocyma viridis Dall, 1871. ‘Kyasaka Harbor, 5
Min. #42 p 15 Irus lamellifer ( Conrad), 1837. Ocean Beach, Calif.
-on in clay ( W.K. Bmerson); Monterey, Calits a ee ena:
‘San Diego Bay and San Pedro ( Lowe).
Mine # 42 p 16 Gomma omma gemma Totten,1834—
Baker); San Francisco Bay ( Ghaney is
Mine # 42 p 16 Psephidia lordi ( Len ES 1863. catalina tetend ne 4
Orcas Island, Puget Sound ( Baker); Drier Bay, se eh Ide Alea ka a
“ar, Alaska ( Baker) fig
) Anating Pcie OT aR.
nee Cole, 1931) aP teh aga
hinge with prominent enced eae teeth eve
iy ca a alte eae Aa the cri ahi’ anterior
chin ty cl te th ie ya) PE ee eo
ather large, © convex, compressed posteriorly; sculpture | of ties ita
lientions - surface of fresh PRE RNETS, vermiculate” -( Grant er Nek ee
Le ata ( ‘Gowtd), | 1851. Sen pedro, Gage. to. Pondne®- GaN
.3 L986 eality, La Paz, ‘Lower Califs, Mexicoc. | Lele wate
Jae arid Gale ve Be 407 state * Recent uae of. this epeetes
be only ex,
10 hee)
hes
r
t ae Head ae oa) ‘me. to ee to fhades 5
be course, it is not from deep waters ( Burch)e
a one ee Huseun pelo me that the museum has Sia!
s ng Sopbince ve the ey genera ante dt in this ey
na as ad ted from the ? Key t0 Holecyned General , Keen eee
a NG \Anatine
¢ ga ancoiineatan cole Schizothaerus _
ernont by a. ‘shelly laminae, Mactra a a
r ‘ -“‘Spisula “ ;
ay]
iter. type ( by. euue dione foghanetion Fleniing,1618) _
(| The designation by Fleming is. given us by Dri.
36 1944), Grant and Gale gave designation by.
GRRE
id ender, 1988 refer it to ie dagen
en ASHER Roe ke. and Ligoments cardinals
8 smooth or finely granular.” Aa
‘Dre Dall cescribed several. Sections
st re under different Sections, The con-
Y seems to be that the distinctions are so small that
Cah covered in the specific descriptions. Therefore,
mt
excuse for this because our -
Ce rane AW beast will oo eae
~ornica eo!
‘state the’ data on this shine ee ey is aes
- our. fauna, vs Pees
up from 3 £0: 6 nee yo the Ce: a sae
Meese: nasut asta Bouias 1851. ea) Pedra, Calif,
ON in anu eas thee ‘they @ are ENON oe: pa ee
To state thot our know
confusion would be a great under.
enough information about at to enable students
are, discussinge
ee californice Conrad, 1837. WNeah Boy, Wachinetie, to
of this species has been a mattor of mach discussi
( Proce AslieSePe ve84 eee ples the Rpaeteay :
ficure it pl. 16.
Jordan Lanai Me californica | ‘at Memuel! s ipo n}
ne 270 one uae He cauate sent in oy a polite in Panama fro
Panama Bay which is. not more than bhiesg ey distinct
a. 3
from Panama are Me. es ee, if
The type locality is Santa Barbara,
ey close to the ordinals and chondrophores.
~-tion Wicromactra,* anes
‘MirsA.M, Strong calis. automa to ‘the! fa
waves nesr the anibones. form eG
hundreds deraae ne reas Bays it cone
in Sie Seen oaced & furck)s “Reported by Weds E
Strait of Fuca. Nope calla
See Ap ees on following PAESe y oe ae
ry
Type pe locality, San 'Badatc and Mazatlan.s | ae hc
coahen has been a ‘great deal of confusion ab
in “the EE aves rae Kaes f
e pust definitely take issue with the fol ter
and Gala; De 405 ” oe nasuth Gould, which 1 was stated to
Mastin cos C
¥
oe aia ne i hed ares ret color ae the
jem ® 8 Bb
ie pone Steam you mention, He: are act:
~thnerus 9 are all from San Pedros"
oe cee
»
“Ante lateral tooth
[teeth o
¥
%
Ant. lat, tos
eth raren Sat
‘ {
Tih oc
y Ad ig jm
ba .
ST reenact)
‘ a left hinge x i
oe
i \
fi vm Satan Ne
i
Se 7 Pe
eam nine es
‘ Peis Se ene ‘
ain Proce Boston
he Ute Osrpen ter!
‘shells. from Santa Bare
“trans. Wo ener Inste, oLLe, pees Pe B94,
lis Gmelin rafcrred. ae by Carpenter. from the
nasutn Gould. ce 8 feces are hale py
cre Te n
<
ae Houle. be hicneed Me oar ae Conebe ‘ey Pl,
14 3 Me deshayesii penTes) ile “ore coer voled, appends pe 46;
a Weds not ae
} ee. ch lees is not the anole identificd cee Go ooper ane
ee eg een, by Dal] in his earlier writings. Nor is it tho shell
by Packard and reprocucec by Oldr.iyd in Ple 20, figse 4,556» It
b is the shell figured by Dall in rroce U.S. Note Mus. vole 66, ple
1, which shows the undulations unser the beaks very plainlys It is
eli thet is accepted by Pilsbry and Lowe and figured in Fl, 16, Pig. oq
fg Myra Keon ( Pore Comme Deo, 1944) *., I include 2 copy of Reeve's
“ Vectra califorhices Desheayes® » which must be attributed to Reeve
sis. of priority. This homonym was renamed Svisule deshoyosil Conrad
Journs Conche vol. 3, noed, appendix, pe 46. Reeve é remarks, *?his
not distinguished b by any peculiarity of form or seulpture, ond
chee a small ie — That vasa 2 ieee! applics
: ee a eee from, ae “tyre doce ey aces aa scems
Lae as ae the * Panama" Bice, hare new. descrip=
# thot,the best
: Uactra nasuta
“Tho tee: thing | is Obviouse
e eee . Thomas ie - Burch: who row ee fieures : “Since
asute is the counterpart of Mactra fragilis it may
Oe A Pe minor Cistinetions apparent between our
" '§ figuy
lateral tooth in fe ert Fe = eat tidah, i ae species ee partially
nto two tecth. In Me nasuta thesc ares ide by sice while in My
_they are enc to ends Mactre nasuta differs from.M. californica
the anterior and ex, more rounded in M. californica and also the
‘ior inferior lnteral ‘tooth in the right valve of Mec f MW. californica is not
idea So two itieb! wagias re it is An iy nasutas In ie nasute
~ Koetra fragilis Gmalin fide Dall
4
. ay just finished drawing the Spisulas
a 2 Spina . ‘It will be discussed at q
The following note is Seam tomas: Ae
before eobiie to the stile I Aaa mre
jae ks Pelaeyped Genera, pi here do aenepea: the tooth at
~ual position with regard to the hinge, A comp
ee ( near the hinge) anterior ane as
“Figured out with the shell or crowings
DRO) oI G REN STECIES OF SPISULA
Poeterior end longer than anterior ye gas
Pallial sinus deep eee
Pallial sinus shallow sesiyescseceees
Posterior end | shorter ‘then Breen ion
lias ; Cs f
Left valve with anterior lateral | tooth not divided |
into two distinet teeth © ee YY
Anterior superior margin OLN Bnei definitely
OCONVETaccseeceurcedenerascenspng steers. Iihalind ea
Anterior su;erior margin of shell nearly
SEEN Gh sav seeereseevasaserasssransssenes 8
into two. distine i cout Coco derereerseerere
Cie) ; A:
While 1 Hons chee) dhe towel fe should. peveaeue te
these species, refi rence to the accompanying figures will bri
deniar ones’ not onl: in re ata bi in the pine
Bien seeteee-t
adnate ne proxinnd anteri‘ or inferior lator’ , tootr
ye Posterior “superior Late
Post. inferior ~~
lateral tooth
. Note- this Spoon
ae been broker
& repaired, 80} |
this shape ati
anterior end may
not be typical. ‘
iin |
Mita pemy ape pagar = 44)" Ot
emia) ee) x Hegre
I dh)
| [apn Piss con
Mibatian tron t ‘ 5
FAT ieee sat pile dete
eft valve x 1 ( young spec,
A iy
care (Se PNwrees.
jaan eee
eras Site
se ee
Lat, jonth
rey
peers ana hie
Ki OT me
te tioth
AN
Bote falcata. ¢ gould), 1850 ce:
Wiontercy, Calif 20 fms. shale (8/1940
\ | | left valve x LOI young specimen)
a aca) oe
TR
ied j
mal
SUE
ites ee
Nyy ys, Ke
) : a, * Y f, Re : i :
ih ged att ae
fantanctee SU pings ‘ pee
Poste Lats tooth eid 2 ett
ty omplotely, poe
e
Ante inferior
tooth
i
arate
i rae
we
eA AE :
RY, i
yi ovr : i “,
gen i goveuia delabritornte® conta
45, Estero, Todos” un ay
: 10/1936 littoral~ sand
eta Bee z = a 4:
Be ant ese
poe. oh
ate -
; y of co
‘ ‘. left valve x 2
| Baap ets
3 hg Ee
ee : Hi
eee rounded punctate ee
_tubércle a (oe ia a
ree foccrine ne
Sg a
<= left hinge p Pie PES a
Rea ics Proximel Ante inferior ~~.~> or ale
ee Lets tooth Clie se cs
Be) MEetaD Arty.
ae . Inf. Late’ _
Te: Ge oth ; ass ss
‘
Cardin tecoth bai puis
, SF a cunbrgtor
Se
right hingo x 10
a, catil: Lformis conrad
1 ee
| Wautilus, “WoleT, pled, lee 7
"a8 interpreted by Dall Jee =
| Spisula catillifornis Conrad, 1667
12, figel ( De. tos), but this figure seems to i, Ween ‘yeeipales as ae
_no reference to it, Dall redescribed it and figured it in Nautilus,
38, ply. By figels ‘It is also mentioned in Nautilus, VO~s8, Pe40. »
lroyd copies . Conrad's deseription ‘but does not figure ite Both Pack= —
Grant und Gale discuss the species but. do not figure it. I find
ire or en It is: diftioult to. ot what cee
ig
V aeeine? 8 statement above outlinés the question other Hee consid=
sion of’ which ° species Conrad intended to deseribe since his figuro—
; figure ‘on page 16 of these minutes) is thought by some to figure _
i ferent ‘species, In the preliminary discussions John Burch called
to the fact that the large outer shell in Conrad's original fige
r Spisula dolabriformis’ is a perfect figure of. the shell we have
en call ng. Seievls Teneh ii Dall, ‘1994 and Banoo that perhaps Dr »
is Nautilus Fig Der, "258) ae Bee. ues on pe
es | states for example © polished white under a dull eee |
gta is as dase we have in ‘the Bee cere have been maa
ice: it is interesting to note
Ure . mtd Dr. Ae Myra Keen independently suggested
Conrad" | ‘figure ( seo. eee 15) indicates a composite type and that
: ‘spoctoss. ‘This observation is meu stated by Dre Keen ( Fer, Comm.
4.4, ® Reviewing, the problem of - the Mactridae: again, I think you have
hing, though I wonder if’ the mattér does not present a further comp=
cation, thusly: ‘The original-description of Spisula dolabriformis. Conrad —
| 675. ‘is as Mrs. Oldroyd copiés it, ‘with the added dis cussion,” Somewhat
like Mactra exoleta in outline but less elevated and not so ventricose."
‘first figure, or rather, perhaps, figures, were published: by Conrad in
18 “a Amer s Jour, Conch» vole5, plel2, figel, This illustration shows a
: a of a iid hip which Seems identical ‘to me with Dali's S. acral
is £ as ‘large, Toh ber in Mie bortion, and erhoenig less ventricose. This
figure of a left valve corresponds pretty well with Dali's figure in Naut.
wole7,ple5, ‘tigel, in his redescription of Mactna dolabriformiss I wonder,
therefore, if Conrad's original specimens did not.represent two species,
a Mactra, the other a Spisula. This being the case, one valve would
to be eae oy sone Tater author as the lecto~holotypes Accor~
eae tp then arene in aT, Hes Aras ok is represented.
ce voH write Dre eae about if and ask him to make the comparisoms
‘If you have enough’ specimens of 2)
the: Academy never likes to rett
whether or not this onti ty, is
of the ouelane: acy you, ae “Until you can .
your hunch remains just a well@ justified sus
whether Dre Dall. ever studied Conrad's type
no evidence of it in his discussions. Therefore,t
been wrong in his interpretation of. tho species
note comments " The locality label ( on the type at ANS
even though Conrad cited Panama as he type boas) y in his
specics we iow as honpli isa Dall has? in coat nt yer rs bee
the ae ub ( ean from eee Wostrsaan),
a Spisula, oes point is ASscussed by | thomas
notes
paces pani comes the. otoseaeT one t ;
~cribod S. dolabriformis he described this
the larger shell as S. hemphillii. ‘Against this.
that since Dall distinguished very carefully etwe
he certainly would have realized that the | ous
Spisula and not a Mactras ‘still another
not the alti of the Lies T wé have at eal
Me dolabrt tori e” if hie ‘be ary the name
for whichever one oe Conrad! s ‘shells is st:
Se. hoinphillid would be a ‘synonym, pand eee
_sriformis would be without a namé, It seems more
Dali™s: unknown species without a naine- instead.” ‘a
( see figures. on pages. liar 4)
Genus Spisula Gray 18374 “‘Bype . by subsog
becora Bolida Chg jie!
‘oes ligament. sagittate, set iy a eanY ous area.
‘margin and nde ide off Matin the. sheer A any
It. is true that this little Rake d
not infrequently is lost causing. a puzzle. He
in fresh and well preserved spocinchts
egies oP ite
* Sveinson Pan
aah nite rere ate sea our sone ‘coast. oe that
ee loads ‘tho 7 ae cop aig laterals: of solidissimas
Ne c
Bpisula 8eSe;5 hinge with relatively small, short laterals, ¢ an y
chon pphore, /and, cardinal tooth often eas but well founeast
ca
i
olynyms alaskana Pell, 1804, " Abetie Ocean at Cape ldeburne:
0 Ber: sut&ans and eastward to Puget Sound ( Dall,
oY |, the Kurile Islands and the Okhotsk Sea ( Schrenck)e —
. questio aa arate are dnvolved hert. In the first place is _
_vario y' separable from the bapepes ae la_pol nyma (Stimpson),1860 —
East Colle vole 25 Art,6, noe,
10 for Xie ovalis Gould)» Wehueon gives the range of tho ;
ison Bay to Cape Ann and Georges: Bank, liass, In Nautilus, |
re Dall hamed the variety alaskana as follows: ‘The northern
Ps od to Me faleata’ is a barely separable varie zty one
eh may take the name of elaskann." The varicty is said So.
pecan Co Chae irene Wey: aXe ve have on my table
2
PA
ae are: ot. to wso the ‘yarictal name at ete eicey seems
argument there. Grant and Gale, 1931, ps 395 state’ that ® oe
me sortaln, that vertoty aleskene Dall. dnd a ‘ cere
Oa inns aise in the’ syhonytyts “The name weiae
a voyd ( Gabb),1866. Dr. As llyra Keen has accepted
Chi oe Let eile the as tert of mere
‘from a. He : Maka te ‘Swikswak, ‘Nasi Penne
: with the comment " Appsrently ‘smoother and t —
) Wa husetts: Bay, Admiralty Ide, Sef, Alaska,1918;
1922; Cordova and Bitkalidak Ide, 19313. Unakeska
Kodiak Group, 1939 ( W.J. Eyerdam) with the
specios does not seom to be common at. any ‘place® °
: Tdse uA Ae : ee
ri
ptociteccbasbaludeairsriatt
A omeree, it 7 ee, alesis ‘end not uncommon. ¢
chet state of this: * This: nies Mactra differs
t
srryne Stine or Palas: ihe awatel, Seon a ty Nene nore ant re A
Vane identification. Dre Poser, comes
ee Ree ecard 16. frames feat a
uk Burch); Corinto, Nicauragua ( Wed. Byerdam
Specimens identified from U.S. National
from Burch collected at Ensenada, Mexico. | ie
of over 1,000 miles.® Reported from San Pedro and L
Dicer Museume i, een 8 a quite
Spisula A es Conrad, 18676 o Neah Bay to San
_ The fa nae: involved in _this so name
llo Sek)
Bees and ce that oe: like. i
-tion would fit California shollse He st
of Carpenter but not of Conrade ‘The figs give
which I do not have. LN Ay
Oldroyd figured a shell, ae 24, from the
quite Se ack trom that in the tk of Conche |
of San nS Se ‘to agree wie n 24 tk
iC Packard figures a shell in Bulls Depts
aes 17,18,19. These should be comparede
3 numver of Mactra have nee _éoseribed from Panama
‘Bay pare 613. of the reas eae 186:
lost, 2nd his descriptions from very youn
ver;
Sehi izothnerus) in abuncance
_——
rp are ontly “killed ae, freeh water by 8
ae rate «but beaks narrow. “This “
finds 7
ivarer, it is bie wee 8 te of ‘the
Hina. catilliformis fit Conrad! oF
ell from Long. Beach sues! to bette Beast edthough
pecimens are quite rare. We have taken half grown specimens
itos Bay but like - similar specimens of hemphillii they have
huge size attained. in the Open sede (Burch) » Reported
a een Pues eed and fe Gang Lower Calif. oie the baba
WRC eect $e es CAD SR
; ti
a y
eb, Pilot Sound a Cortes Banka ond the Coron
Si “Typo locality, Puget Sounds iat oe a
and Gale, 1931 were disposed “to give the range as © Quesn
Islands and Puget ‘Sound, possibly as-far south as ‘Cape Mendo=
ut more southerly reports probably erroneouse® This opinion has
ong Gc simply did n ot seom reasonnlle, thot.
i
a
4 inches de Nhe one of the. southern:
“our Se etenee pea" "been. to eine a oes pe ae ant
with 2 bathynetric range down to. around 20 fies
dredged itf rom Monterey south to Ensenadds( Burch);
Wash.’ x Eyera cae Coronado ‘Bea ch C piace: San ‘Diego,
Gindoe: on Be 12) ONE LOR, ee lees
n 1921 in Bu: a 112 Welle only places, planulata, under i ay
ing ® Teeth of Mactrotoma se6e3 hingo of Spisula®
1 to describes Therefore, we sha 1} not ae enue
( conad) 18373 eres icalary i Cape. San dae.
oh Type, Ona near Sente Bein” Ca lif. cee
ae
aed Soleetea: ce Satie. ‘Barbera: by Nuttell and”
Conrad. in Sretheads Nate Sci. leis gk vol. 75 De 2409
“name ‘to. “spooimens Milicete at Santa Barhaie
eae oes is not certain about ite chai
e
jatar followed “cerpenter’ Bi “Adontifications.
: in southern California. could e the same (7).
ace southern California they seldom exceed an inch
a Dall, 18945 Dre. Dall. ain 1894 ‘tle heat faleata under Chal
ma jority of ‘the members is> thet the . ‘subgenerice distine=
Wee
AK
{
|
j
Liens ( Gray's description of Tresus)
iy
simone, the largest 4n my c leet
pe typical S, mutta
ie benent external, pened separated:
: per ecemecins Bupatlts ‘ ee ; Lage 7
ACTIN INO | CRORE 4 h oan Mae a i
_ somewh many
EE atag seem he ge the ‘typical oe oe
ehpaxe Dre Ae Myra Keen ( Pere Comms Dec. 194¢ | th G on 28 ny ;
‘Follows: hes Eric Jordan collected Se 20 aAerus ni at Scan ."s Lagoon,
a We: have | specimens den as
“ventral. margine« Se eapaxe Se ee a ‘fro
‘Island. Although the ranges of the f
that could be-.said to be intergrades
You will find. on this page a
Bees: of Se eapax
aa apperetty bo i yee ae
However, this seems to he. a mooted ¢
Se cnuttal lid as follows 7° “Very common”
‘Bound at low tide marke ‘Said t
from ane te a G
Ane 3 we a ve. dre :dged | Tging OE and dea
ma Ad me rend. Selah aa as deap 88 26 :
Jooh Ne erat ; () bee
Le ae otly ers bptaaaed eapax, ( gould) 5 ie
Bereell BYR o7y marr eee
this is tre sh rt high), globose
H 0 Llesting deta: Pert Orchard, Wa,
T ay Alaska «(Ge Willett); Sitkalidak
uneni 1981 Qe, ite Je Rohde!
nf
aro an teceaibede! of 8 Be ace the bait
Aen dine i png the Bryon a: vat Ba: eryone » |
tar vled I think we shuld” the date —
ae were cnliceted should be e hasi @ it indiéates that 5, nuttal’//
‘ a ei
1 BSED
Pg eter meee Ses nate
rte etna ne aes sac?
vn perneiee Amtert
(Ses
fencer a
we
LEA
OP Tie mathesti
TaN iem - Hin renee fehens A ereereaals
Heit salve eV)
N aN
Niatiges Steele i
maa spam
Ae;
ie "practical}y 1 riba als w!
- was ‘nt FOR the radically eugtorent shaped shell
iii: ‘Tarton,1822. - ne i by Senet ie ae Montagu. mae
1 minute, oval, close; cartilage ina eehtral pits right valve
ngle prominent toceh in. front and obscure tooth behind; left valve
sabseure teeth; pallial sinus deep.® ( Tryon SeSe Conch.) " .
ma sornies in 1916, de | San. mts ee to ech aeane Beye ‘( Dall)
1). ae Ge Gaveieey sapien ce ae left valve cuellost, ”
ge flattened cartilage-process; pallial sinus large” aC Tryon).
ta Linnaeus,1758.. " Circumboreal. Arotic Ocean ‘to Bering island
and to Puget Sound on the east™ ( Dally 1921). Johnson loud
“range as " Greenland to Massachusetts".
ae lists a subspecies ya truncata uddovallensis Forbes, duke.
he Lae emalies ae more: irregular than arenaria i
a by its truncated se etd 5 a and its cai pe
oT Grant and ees Be, stile
ce UG ge na feed Cove, Seattle: and ee oea of Fuca,
Bay, Afognak Ide, Raspberry Id., Kodiek Id,, Sitkalidak Id.,
Mitrofania Ide, Unimak Id, Akutan Id,, Unslaska- fae, and: Atka
Eyerdam); ner also Tromso. AR iana nailed it qT. forberg)s" and coast
He Lormond);
ta uddevalleneis Forbes, 1846, “This eubapeotat is added on the
ana ee a dae irene to the Se ae from Izhut
his: fariely & to a eee Ca ee Cae
an ya ee Dail,1898). € Atotts Ooadn Loic
+ probably also Atlantic® ( Grant and
Dre A en on aes | Sor, Comme. boey 1944) ® Mya daeeeucaias
‘4s 2 homonym, SO that aif the form 4s to be distinguished from arenaria
name Japonica must be. used or a new name proposede So far I have not
hod a, ne on the, nateets though I have Tow sewod! the ‘problem sev~_
ie. v
es we, p 41s consider Jepnnics _& subspecies of arenariae i
ve Leones ig ae oo Re poliesdie an, Ueovalla, AOe
like srenaria but b:
Collecting data:
( Lewis); Muddy Beach, One:
‘Kiitap, hokkaido, Japan ( Dre Pe
follows 3 ® Drier Bay, Knight Id., §
and Shuyak Strait, Afognak Ide, Mitr
Alaska and Avatcha Bayand Gulf of Kron
Eyerdam. Most of the specimens that I have 2
forms of Mya truncata but are in the adult phe
“ger end are iré much heavier or solid than 4 .
differences: inthe sinus and Nish ora adul
and when they were doaeen the Russians ‘were Pepe
oy of them were halt starved £ never saw any 0:
I just Gieused oes these ube are were es Pipi to even
starvation when there was plenty of. food at handy a8 eee
cliffs, a never saw any of them e ven attempt to
a Jap ship was in, the crew was out on the bea ery
‘Mya arenaria Linnacus, 1758. ® Britain, Scandanavia,
Coast Of North America to Carolina, . Alaska s
ver Island, British Columbia ( found in Indie
~ fide Oldroyd), artificially introduced about 186
coast with seed oysters into San Francisco Bay w
the California and Oregon coasts.” ( Grant
ey Ae aie aa aioe about the | 8
vt) tai Bi,
Calicoting datas Tis stant delecuen nn
Sound. When was it first introduced into. this.
CoNs J. Hyerds am) 5 Base Gr caons: Sinslau R .
Ae
ect oh an oe of tds species is to, ee a “pound or ie at
Wharf, San Puaiet ee, or other tlarket.( Burch)e Rise
Gonus Cryptomye. conrad, 1869, Type He by momotypy) » ‘Sphent
Conrace tan
oy A Ease o small Mya but, nace Aaa! long ‘protr
escovently with but & ‘slight posterior gape and:
ar very shorts shell small, ovete, not very conve
sige 9 baa es hiye. arcnarias interior of dorsal margins + icke
aa Chiat ~~ Som’ <uthors consider Cryptomya. a
ele pegioueaipn - ieelaaes Rae of a Ca
bees into the burrows. of eee. eae ap ecu
Cryptonyn eslifornicn ( Conrad), 1837, i ia
South ‘to “Popolobampo ,. Mexico*® ( Dall). Gra
Japone Type localitvp Sonta Barbara, Cali are
Dr. A. Myra Keen enlls attention to an interes
_seription of Cryeonyn Celi fOrnt ae ae Basa Ye
Pa }
pee * ats bi f
uneomion ore
| tin ald bays
found ab ne ee along, the open coast. ene
La Jolla ote. ( Burch) 5 Venecuvers: Boo ‘Syordan)5 Dall
& ke. ©) Ge Willett). i ain he a
Naame T8220) Tee ( by subsequent Rostgation, Gray, 1047).
rhami Turtone | |
en Ppa of a small ye, very shiny oe in shape, the Cr hs be
Grant and Ae
1 a yee. SL ocRLA sei His Pia):
uy at Craig, Alaske ( Ge Willett) $ eon ay
kelp holdfast ( W.J. Eyerdam); ve have specs imons. “taken oft
“Wash: by Trevor Kincaid ( Burch) » :
all, 1916, ” San Diego, C2 lite 8 Penesie: € Dalle Rie
legos Mir, ‘isres Willett suggests that both trunculus
eee pholadidea may be but situs forms: of fragilis,
Sag iene Barbara, Calif. * (. Dell) ond off ‘
| Type pine Santa Barbera, to Baulinas Pare
le Sp aa elobula Dell, 1919 ‘ "BpheniaMaana |
Bye which was eee as. faphsiris nane eee oe is
enol, “San hogs ipl
Nig
tre ‘Pype ah by neste), ps () Bistyotsn) cane
‘ ASS
Apa le, | 1935 atekes |
“Stovinaulchot f trh ed Birfaea burrow ae
| Our experience bee ee oe: pind this
eds of Pholads. We found it abundant around
ut
¥
dam) 192543 Poin:
a. that must "be submitted to. hel Bares
with 1 more ey? Zarate Y Vek ee
“Aloidis Inte ola” (.; Carpenter), 1864, " if
( Jordan, 1924) ( Grant and Gale). Type
“eens pat Tolend,
Landing, Gality |)
Museum) « pooh a
"Family ALOIDIDAE (CORBULIDAR) —
_ The theory is that Aloidis ‘eens von
—Corbula. Lamarck,1799° being pr preoccupied ve
“erent groups The above from Cotton a nd
pe 281,1938 , but followed also by Dre Ay
Aste. Blend ane Gale, 1931 continue with
Myra Keen ( Pers Comm, Dece 1944) states the
sem is similar to the Lucina problem, the name having first be
Bruguiere in 1797 at the head of a plate, with no named jpeéLe
it was validated by Lamarek in 1799, Roding used
Asaphia. Whether Corbule ean be considered 1 genus wi
Genus Alotais tee von iuh1feldt, ‘eit
suleata Lamarck =- ( Corbula gaincen
DRS: Julia Gardner of te Ue Pan
ap eetlnets
discusses Alotdds aaa uses a as. (Qi
it as follows; © Like Corbula, put |
‘kealed. rostrume*.. > pe jy Reg
There is a difference of phe th ous
until further nothesy
Sub genus Lontiadups Gnkakotort ey sepa, 18326 an
Dall ,1898), Lontidium maculatum Cristofori and
( Costa). fide Grantand Cale, 19 BES ope eek Gare Uae
" Shell nearly equivalve, elongate trapezoidal, 1
ans on both ey bared often eda ok lb
Motais bine besa ( wade” 1843.6 — Catalin if
Dr. Asi. Keen advises * The type Toe
Coast of Veragun, and San Blas, or _potmess
Aloidis | fragilis ( aids 18456
The ley s0G6
Py pecs
& meen he Ce lutcola rosea Will
Scie 44120) has been hm gonorally p Tac we
state " Pinkish or rosyzevlored. tna r i
agings f
cutee. in Todos. Satins: re : i
ecies we have ever beenable to tecoguied tn our materials
A Bas Tae. ~ * Senta Rosa Island to. Panama® oe
ity, ‘ataitea Islond, Calif. ue POEM ar teh.
ina Dall,19126. tire; Grippina pice erie elie CNG
Slightly inequivalve, donaciform, small, with a well-marked aya
nding pallial sinus; right valve receiving the dorsal edge Hae ess
S. beneath ie own dorsal SESE eke tecth
oo “peti, Ile. San fae calif. a eee da Ss
Loco So) te Calif. (Strong, and ‘Honna reported the specios
ig eboretet ‘the cee name “Hietolla a ea and
. Fleuriau de Bellevue 1802 in Synonymy « Among those
‘proceeduro are, Cotton and Godfrey,” Molls, of Se. Aust.®,
New Zealand, Dr. Mexwell Smith in. his recent World Wide
te. However, the majority of. references continue to use the
honored name of Saxicava. It must be admitted that the advocates of Be
1 to make a rather strong case. Dre A, hiyra Keen ( Per. Comme
“ Kennard, Salisbury and Woodward in ® The types of oe
enera of shells as selected by JeGe Children in 1823", Smithe
Ll, 82, noe 17, 193) say, regarding Hiatella; ® H. arctica
: ‘sole Bren ee quoted hal bane eta whoo admits he was
tty “therefore, that we Hee regard Biatelie AS & “genus
cae Saxicoyn. ee
Type at virtually by monotypys designated by |
Mya glyoymeris Borne fide AeMe
vo OhiTaron' S| ‘Wsimnation, 1825 of Pe Sate iste! |
an
G1 ‘ 0!
tas the ‘stated: i noteht Of; gions
iigcotars\ ie globosa; if magnified to the
mm shorter % then ‘Solida; Ae to the
Sees be a THe ie shorter ee
to.
oe
ba ae a ais be a hel" Pee ase oo
globoss; ate is nearer what Dall says is typieca
shortere The photograph WAS” supplied by the
of the type specimen is obviously ‘necessary. *-
Collecting date: All. who heve dug this spec
reason why comparatively few of themare sent care
lene) net rere put the: habitat “is often a e full y
a md end to a to the difficulty it usue: .
ey a Weoginitia ‘ha Aiuhona ee 4
a entire weight of the clam shell inel ,
ae ovar experience has been to find it very -ab
Obispo Coe and in most of the bays and» aoe Ss
nee uncommon at tugu, Ventura Boy 9 fis
aie rosting note on this se
10 Port reha
fs ‘
ReBor ti
BAAR A
siiehety: ae he ee and ‘eoverdd.
i eae in mudcanc aia never er
Par nonya. taingin ae
Comay
rey, oe ea) an r a
"AL He vat sak bee shceltens of "Panonya, in Pte
ee tee sap Dalle ‘bes bellts 'ddiuekreston’ of amp)
gh 1902," “ple40, figbeds4e) certainly does not rop:
MA rig viel tes Olérove: ( Stanford Unive Publ. Geol.’ 1,
Jand Goto ( ope clite ‘phetl, figs, 10a, p10b)
seen tic specimens ‘upon shich the records o!
( Araol., ofe cite p 18%) and ‘Tim! s Point
based. However, exumples sceured in the 1
anc John Q- and Tom Durch are not. anple,
with, turgida,ss figured ey Duala ‘ U iSy 1
i H
Yi)
ADs ndet’ range aves ee ets Eee att
ena Sea ‘Wie. ee pi Sea" a pa
a Dall, ‘1098. Se es Lieut lan Telands, southeast to
Groat and eae Dr. A. hiyra’Keen advises ® The type ;
8 Kyske Harbor, according to the Holowwecmen ty 0
Craig, 30 fms. 3 Forrester Island, Alaska: in 40 anes
: shi adcitional note ® I believe Pug not Sound records | :
la not ampla.® ° Sitka, Alaska (oLeroya) Aeter tee from
Ben Juan oe ai Wash by Byer Gets wie ae ay 0)
va i
i sf
OD. fie: Grant ond ‘Gale, 51931, 1 te 429°
98) Cyrtodaria ‘siliqua Dauditee,/ i 0%
ing at each ond; posterior side shortest; ‘Ligament
Be" thiok, without tecth; epidermis black, ceeenee :
ante Pe muscular scar penee Bageaes, ay Uist irrogular
'{ Tryon 8.8. Conch.)
Dunker,1862. 4 Arctic Desens ‘ana ‘poule to Norton. Send 9
2 west const of Greenland” ( Dall). Type locality, Greonm
Lyra keen advises on this specics “ Mrs. Oldroyd's statement
8 incorrect. it should read, Long. 45; Longe sAlte :Crassen=~
son 's Have my Ne Siberia 445 fms e OMY veer Exp (encteee). |
j
Pe tir
liortens, 26056 Type, dpe eiieten Meaiota, ‘
, ineguilateral, ‘fldring,oval, transverse or sub-trape=
an the rears hinge becoming edentate or showing
a1 tooth, fitting into corresponding’ cavity ree
short, prominent, mee Line Seeas: oes: sinus
SYR and. ‘listed it in Dull le ee from. a
“ab oms oft Todos Santos “Islands, Lower calif. ‘eae a
ot
Boia hs ‘
Plearing de Boviewa, 1802 ‘Type : by eubecquent ‘designation
Mytilus Fugesue_ Linnaeus, 1767.6 feb Grant and Gale, Pe A27
| younf si or iy with: two minute teeth in each yal DS tae arene
3 oblong, Gracie eeping, ligament external; coy
1 NNOUS Tt is found in erovices oe ;
#44 p 32
Saxicava arctica ( Linnaeus),1767. % arctic Ocean to ak Also Atiaaee oe
Dall). Johnson gaves the Atlantic range " Greenland to the West Indies™.
About the only problem with this genus is the occasional difficulty
in separating arctica from pholadis. Grant and Gale, 1931, p. 428 state
thet arctica ha&S been figured as having velldeveloped spines in two radial
series running from the umbonal region, but the spines may be ohsolete on j
eroded or old specimens. Saxicaya pholadis is smoother and lacks the spines «
And of .pholadis " It is edentulous, strongly concentrically wrinkled and
spineless. 1t is generally much less .quadrate than arctica and differs from
the latter in the edentulous hinge.*® They suggest that the two may belong
to one very variable species.
Collecting deta: To list collecting localities for this very common
Specics would be a waste of paper. 1t is a nestler and to be expeeted in
wharf piles, dead shells of all kinds, Mytilus beds, in pholad holes, barna=
-cles, rock crevices, kelp holdfasts ete. Our experience was to dredge it
conbistently from some rather surprising depths. It is common off Monterey
in all depths down to past 40 fathoms and off Redondo Beach is a common
species in the 25 fathoms gravel. ( Burch); very common in Puget Sound.
at many stations in Alaska,Aleutian Islands and Kamchatka. I also haye it
from Kola Fjord, Arctic Russia,Waigatch Islands, N.W. Siberia in 60 fms. clay.
Tromso Fjord, ae and fossil from Uddeyalla, Swedish west coast(Eyerdam) »
Puget Sound ( G. Willett); Forrester Island, Alaska ( Willett) Angeles Bay,
Lower Calif. ( Lowe).
Saxicave. pholsdis ( Linnaeus), 1771. * Arctic Ocean to Panama; also Atlantic"
{ Dall). Johnson gives the Atlantic range ® (Greenland. Cireunpal eee Type
locality, Greenlande
Collscting data: We have found it abundant around San Pedro Bay in
wharf piles and particularly old drawn piles. It was a common dredged shell
off Monterey in the shale in 10+20 fathoms ( Burch); Sitka, Alaska ( Willett); _
Sen Pedro, Monterey, Santa Maria Bay, Lower Calif. ( Lowe); many stations
in Purct Sound and in Alaska and Kamchatka.e ( Eyerdam). : :
Family PHOLADIDAE
Genus’ Phol»s Linnseus,1758. Type ( by subsequent Aen ecceanas Children,
1822), Fholas dac ip tiis Linnacuse fide Grant and Gale, 1951, Pe 450.
Grent md Gale ylaccd our Barnea pacifica Stearns in the above genus
and made Barnes. Risso,1826 a subgems of Pholas. This was at first accep=
-ted by Dr. All, Keen in * apriasce Check List®, ‘However, this has not
been gencrally acceptede Ba nea. lacks the anterior gape of typical Pholas
and diffcors in other. particulurs.e Dr. ds iivra Keen ( Per. Comm. Decs 1944)
sthtcs “ I acceptca Pholes as’ the correct generie neme for our westcoast
forms becnuse when I tricd to sort out. ths various exotic species on the
basis of presence or *bse-nce of anterior gape,’ there seemed no clear cut
sub-crcuys discernibls. Therefore, I concluded that we should adopt the
earliest name. However, inso doing, I overlooked the matter of the access=
-ory ol: tes. Upon roeshuffling our material on the basis of accessory plates,
i find the story quite different. The only true Pholas of the West Coast
scvms to be the P. dilccta Pilsbry ond Lowe, from the Panamic faunas The
Sr ile ieee
cics vscifieca, bnving only ono median waibierbaees bi valve, falls in Barneae
Sandan collected Be nea. Used at Scammon's Lagoon,®
Genus Barna ( Leach): Biase: 1826. Type ( by monotypy), Barnea spinosa
kas BO=— Pholss candidus Linnacus. Ee my
W'sheil ovel-oblong, anteriorly gaping, 9 single lanceolate dorsal
accessory valve; umbonal process reflexed, closely applied.” ( Tryon).
Barnea pacificn Stearns,1871. ™ San Francisco Bay to Scammons Lagoon, Lower
Calif. (Jorden). ‘Type locality, San Francisco,Bays
wy
generat by. a monbrang 3
aoe ering,” we oe
oe
t, Vole 16, 3 751-755, ee a
baeky Y dee Paget! Sea C Ge winlete)s ‘Smit i ae,
eee Wash. bad | Bort Orchard, Washes an ea xe sian ate
es
1S Conrad,2649-, ones. ( by y nonotyey)» 2 Pholas californious
ees gape btdeed by a ‘thin: swollen, globose,
oe divided re ae ce ga Bec into. three
Cy
‘i ew £ } Ny Bor, i D)
ce se : } price
Fon, ‘1el9. lagde ¢ by donne
tlle Ph we s Turton -( fide Grant a
a double or Single protoplax and with or witl
eb, the valves prolonged posteriorly into leathe:
uv es x) nes the oes
\
Cleat & by Dae
the reel pe
to the ‘umbo st
| Pi Liorbing, ‘idaal ies veete be a was’
taken almost every place there are ro
Port Orchard, Wash. in clay-shale (— i
However, there has been a great. deal o
Pholadidea penita concamerata ( Deshayes), 1
Hi gona Pan tee ee |
§
she coneamerata and ‘listed it from s Paeee Boe
shale dredged off Monterey, Calif. However, Dre
Monterey species with bhe types in the Nation
as the following species. Dr. Keen ( Pere Hi
ae: that pf SSE ka CoRSS cgncanerets is
a best it is ee ie an Tecologte form.
oath ie It Ler oe .
ees “1944) i ae is a ee of he nolot
U.Se Nate Mus., type locality Monterey. The
‘The species is reported from Tacoma, Wash. b
| Pholadidea. pera ( Bug 1834. be:
C Dall) to Colombiae ‘Type locality, Monte (
There are two very clear figures of this
figs. 9,10. Over a period of seven or eight years we di
_ tons of material from around the forty, fathom level on
mondo Beach, Calif. Wo gagdned: ponite on countless |
shoe period we spardhed dilligently for anything re
successe It is our opinion that this record is base on
( Burch). Dr. Ae Myra Keen states” al qt is very
occurs in this province.” — an
Pholadidea ovoidea ( Gould),1851. * Bering Sea to
ty ype locality, Monterey, Calif. icy ae
Collecting data: In addition to ane. unmis
this ralgioge our carer eanee has Been, that hijab
Monterey, i Se Morro, Pte Pendao, oe
a ah Callam Coe, Washe; iagenode asic
ee
Rei ae ay they
ng statement
S Probably ne girs vedi ba tell P. parva
Nersteee
: be” arbitrary and say that if you found it in Haliotis
T ‘that is, if it is'nt a ‘Navea) ,a nd otherwise it is penita
; Sag tta). imi Mire George Willebt comments * Probably aform of |
Gils
!
PAGE : pater
“Nettastonel ls ory 18654 ‘Type, Pe abewant Sowerby = Pe age
“ging flaps." :
Pholadides ( tiettastonetla) rostrata Valovedennee 1846; ” hte Bond to.
ef @ (Dall). Dr. A. Myra Keen ( Per. Comm, Dec. 1944) states
® The. type locality of P. rostrata is Monterey, according to the holotype
~dabel; the holotype is. (or was) extant in Paris and was ‘discussed by Lamy |
( Jour. de Conchyl., vol.69,1925, De 153). " " I notice that Lamy places
- concamerata in the synonymy of penite and makes sagitta a variety of enita.”
“Collecting data: This unmistakable little species is well figured inn
bri Oldroyd on two. ‘plates and four figures. We have taken it frequently, from
stones at Monterey, San Simeon, Cayucos, Morro, White's Pt., Balboa Break=- —
waters ( Burch); Friday Harbor, Washe ( nyeesam) 5. ayia Beach, Seb Pedro
hope San Diego Museum 6oll.).
Genus jMartesia " Leach) Blainville,1824. syne Phetes: striata Liiddouss
* Valve Iengthencd behind when full-grown, by @ plain b border; umbonal
ee one or two, dorsal and ventral margins often with narrow, accessory
‘aia | surface impressed with one or more furrows." ( Tryon).
aN Uy Dr» A. Myra Keen advises “ The specimen of Martesia used for the illuse
AS ine ten $0. the Pelecypod Key is in the California Academyend came from.
Lewer California, I believe, collected. by Hemphill.*
liartesta xylo ee Valenciennes, 1846, * San Bladen ony Calif. to Panama”
" Farralone Islands to Mazatlan, Mexico”
- Genus a fre Wess hemi Brags De ae |
* Shell ‘Sub-globose, closed behind; anterior gape very large, not closed
up by ages edge. reflected, crenulated; valves with a sunken sub-central rib;
anterior dorsal edgereflected and closely appressed to the outer surface of
the valve; dorsal muscles covered with a coriaceous periostracum, and with
a small, transverse posteri ior Scania Sa ace behind the BADOR. internal Bren
~cess simple, elongate, arched.” — a
Navea subglobosa Gray,1851. Lobitas to San Pour, alae Type locality, Calif-
~ornia in a shell. Dr. A. Myra Keen ( Per. Comm. Dec. 1944) ® The typo
locality of Navea subglobosa is " California in a hole ina shell®. The
range seems to be San Pedro ( Oldroyd) to Monterey or possibly to San Mateo
Co. ( Lobitas as Dall states it). It is fairly common in the abalones taken
at acti The Berens form, the heavy anterior Biiaa i the lack of plates
Sift
7 (Gaephege ea Bartsch, 3 1921. PRB Bo. ae
"boring 3 in ‘ite We picked it up Ch prabeeces
material. ( Burch) Catalina Island in 30 sui
Seattle in 10 fms. f
fay
Type locality,
Island ( qinlett), He ee
if ii coed: datas Catalina Telend ee
manly TEREDIDAE ite | Dea CEs cans
Genus | Bankia Gray,1840. Loe orate big Imalete Lana c
_ "This genus is characterized ‘by having paliets |
(et cone=in=cone structires, which give to them +
of mhoat™ x Dareechy, 1922)4 : a
“Bankia setacea | ( tryon); 1863. ® Bering Sea to G
| ualaska to Tower ‘Californias 2 eG
“Collecting data: ‘Craig,Kotchiken, Sewa:
ee Knight Island, Alaska ( Eyerdam); Cresce
i reeee te City, calif. and Mantes 2 ae
enue cy Tene 17586 ita ‘Type | “‘Toredo. oni nee ik
“ "Tn this genus the onuieia are either paddle |
may be distally Cone et or not, or they ney even b
the terminal portion? ( Bartack,1920)= Ta ee
‘Subgenus Teredo * BeBe. |. | uy Meat ener
® Teredo has the pallets: ‘peddiesshaped, with a.
- depression at the distal end. The distal portio
/Periostracum, | which terminates inthe. bat ae of
ee, beachi. Bbrtech. 1920. Pree’. Biol. Soc Wa
San Pa Pablo Bay Bay, calif. ea ein ty lian
Subgenus Teredops Bartsch. 51921. typed Ter
_ © In the subgenus Teredops the term:
in, a calcifiod knob »™ Li Barpach, Lea
‘
| Collecting data:Taken boring in wood in the lagoon at Mugu, Ventura Coe
aleo in San Pedro Bay, Calif. ( Burch)/
Beeler ar ay) #44 p 37
_ Peredo { Teredops) diegensis Bartsch, 1916. " San Diego to San Francisco
_ -‘Bay™ Type locality, San Diego, Calif. .
Mae
f iy
Pee dep rodus Gowld,1870. Type, terecu y myrbuue, Bardhan a
» Subgomus Upis-cabgenus the terminal portion is not cupped, but ends im
two lateral forks, covered with a periostracum.” ( Bartsch,1922).
® A Monograph of the American
do ( Lyrodus) townsendi Bartseh,1922. :
serege A as Natl. Museum, Bulletin 122, pp 26,27, p1/22, figs2, pl »
ieee, 1922
ies t. insaiity, South San Francisco, Calif. Known only from type
locality.
Ervilia
. *
PASeps
The following list of Mollusea is composed of species reported
eae Recent along the west coast of North America between San Diego, Calif.
‘and the Polar Sea, Each species will be followed by a reference to the
“number of the Minutes and page on which it is discussed, Species and
subspecies that, in our opinion have been erroneously reported in other
faunal lists, or placed in the synonymy of other species, will be omitted
from this list, but will be found in the text discussion. An * preceed~
=ing a species indicates that it is a questionable member of our fauna
but with records that we eannot definitely disprove.
'
: GLASS PBLECYPODA
Order PRIONODESMACEA °
Family SOLEMYIDAE(SOLEMYACIDAE)
Genus Solemya Lamarek,1818 33:7°
_. Bubgenus Acharax Dall, 1908 33:7
Bolemya agassiziid Dall, 19¢8 Off Tillamook Bay, Oregon, south to Aguje
Point, Peru, in 1036-1800 fathoms. 35:7
Solemya johnsoni Dall,1891. Puget Sound to cassie’ 3587
ubgenus Pe tbecne Dall,1908 33:7
Solemya panamensis Dall, 1908 Monterey, Calif. to Panama. 53:7
Bolemya valvalus Garpenter, 1864. Monterey, Calif. to Gulf of Calif, 33:7
- Family NUCULIDAE
; Genus Nucula Lamarck, 1799, 3357
¢ Nucula exi gua : ‘Sowerby, 1832. Golden Gate, Calif. to Patagonia. 3337
ubgenus Ennucula Iredale, 1931. 33:7
| Nucula cardara Dall,1916. Monterey, Calif. to Lower Calif, in deep water, %°~
'Wicula carlottensis Dall,1897» Queen Charlotte Islands to Anacapa Id. ‘i
‘Wuecula darelia Dall, 1916. Off San Diego, Calif. in 822 fms. 33:8
Mucula linki Deli, 1916, Queen Charlotte Sound, British Columbia to Guay!
Mexico 53:8
“Nucula quirica Dall, 1916, Chugachik Bay, Cooks Inlet, Alaskae 3338
Nucula tenuis Montagu,1808, Northern Europe, Northeastern North America.
ircumboreal. Point Barrow, Alaska to Cedros Ide, Mexico, 33:8
Genus Acila H. & A. Adams, 18584 33:8
Subgenus Truncacila Schenck in Grant and Gale, 1931, 33:8
Acila ee anal s Hinds, 1843, Sitka, Alaska to Cedros Ide,Mexe. 33:8
amily NUCULANIDAE (LEDIDAE)
Genie Nuculana Link,1807 ( Leda Schumacher, 1817)
Nuculana amblia Dail,1905. Monterey Bay, Calif. 33:9
culana buccata Stcensrup, 1842. Arctic Ocean and Bering Strait. Also
Atlantic, 33:9
Nuculana coneeptionis Dall,1896, Aleutian Islands to San Diego,Calif. 55-9
Nuculana fossa Baird,1863e Kotzebue Sound, Alaska to Puget Sounds 33:2
Nuculana fossa curtulosa Dall,1916, Bering Sea and Unalaskas 3339
Nuculana pernula Muller,1779. Arctic Ocean to Plover Bays Atlantice 33:9
Subgenus Saccella Woodring,1925.
Nuculana redondoensis Burch, 1944, Monterey, Calif. to Ensenada,Mexedi :°~
Nuculana cellulita Dall,1896, Craig, Alaska to Puget Sounde 53:10
Nuculana burchi Willett, 1944, Off Redondo Beach & El Segundo,Calif,
Wuculana oxia Dall, 1916. Santa Rosa Island, Calif. to Gulf of Calif. :
Nuculana minuta Froricius, 1776. Arctic Ceean to San Diego, Calif, Als
tlanti¢s 33:11
luculana minuta lomeensis Lal 1919 San Diego, Calif. 33:11
ue meilana pendert Dall,1910, gorrester Ide, Alaska to Santa Barb:
RS OTIS
q4d= p 4 :
Nuculana taphria Dall, 1897. Bodego Bay, Calif. to Lower Calif. 85:11
Subgenus Thestyleda Iredale,1929.
Nuculana hamata Carpenter,1864. Puget Sound to Panama Bay. 33:11
Vuculana hamata limata Dall,1916. Santa Barbara to San Diego, Calif, 33:11
Nuculana leonina Dall,1916. Straits of Fuca to Monterey Bay,Cali‘'s 35:11
Subgenus uncertain
Nuculana amiata Dall, 1916. Off San Diego in 488 fathoms, 33:11
Vuoulana dalli Krause, 1885. Unalaska, Aleutian Islands, 33:11
Nuculana extenuata Dall,1897. Off Sitka, Alaska , 1,569 fathoms. 33:1]
Nuculana fiascona Dall,1916. Off San Diego, Calif. in 822 fmse 38:11
Nuculana gomphoidea Dall,1897. Off Tillamook, Oregon in 786 fmSe» 33:11
Nuculana liogona Dall,1916. Bering Sea in 1,401 fmse 33:11
Nuculana eaicee Dall,1916. Farallones Islands to San Diego,Calif, 53:11
Nuculana phenaxia Dall,1916, Off San Diego, Calif. in 822 fms, 33:1)
Nuculana pontonia Dall,1889. Santa Barbara Islands,Calif. to Peru, 33:11
Nuculana radiata Krause, 1885, Arctic Ocean; Plover Bay, B. Siberie; Okhot=
~sk and Bering Seas. 33311 _
Nuculana spargana Dall,1916. Santa Barbara Islands to Point Loma, Calif.
Sotil f
Genus Yoldia Moller,1842 ( Portlandia Morch,1853) 33 3:12
Yoldia myalis Couthouyi,1858, Arctic Ocean to Puget Sound, 33312.
. Yoldia Tinsbula Say,1831. Arctic Ocean to San Diego, Calif. 33:12
Yoldia limatula gardneri Oldroyd, 1935. Gardner Bay, Pender Harbor. 33:12
4
Yoldia scissurata Dall,1897. Arctic Ocean to San Diego, Calif, 53:12
ubgenus Kalayoldia Grant and Gale, 1931, 33:13
Yoldia cooperi Gabb,1865. San Francisco Bay to Todos Santos Bay, Mexe 35:13
ubgenus Megayoldia Verrill and Bush ,1897, 335513 :
Yoldia thraciaeformis Storer,1838, Arctic Ocean to Oregon, Atlantic. 33:13
Yoldia secunda Dall,1916. Southeastern Alaska in deep watere 33:13
Yoldia ber ngiana Dall, 1916, Bering Sea to Anacapa Ide, Calif, 55:15
Yoldia montereyensis Dall,1893. Chirikoff Ide, Alaska to San Diegow.53s13
Yoldia martyria Dail,1897. Prince of Wales Ids, Alaska to Gulf of Calif.d3~13
Yoldia vancouverensis Smith,1880. Vancouver Islands 33:13
ubgenus Yoldiella Verrill and Bush, 1897. 33:13
Yoldia siligua Reeve,1655. Norton Sound, Alaska to Cape’ Simpson, 3s0.53313
Yoidia intermedia Sars, 1865. Bering Strait and Norton Sound, Alaska,
Circumboreale 35:13
Yoldia oricia Dall, 1916. Oregon to San Diego. 33:13
Yoldia sanesia Dall,1916, Southeastern Alaska to Pte Conteptions 53:13
Yoldia eapsa Dall,1916. Aleutian Islands to Gulf of Calif, 33:13.
Yoldia cecinella Dall, 1916, Aleutian ie to Gulf of Calif. ay \f
Genus Cyrilla A. Adams ,1860. 33:13 Pleurodon, Nucinella y
Cyrilla munita Carpenter in Dal1,1898. Santa Rosa Island, Calif. to }
Lat. 54 8. 33313 rl
Genus Malletia Desmoulins, 1832. 33:14 Wh
Malletia faba Dall,1897. Queen Charlotte Islands, BeGe to Lower Califed
$5714
Malletia fiora Dall,1916. Off Sitka, Alaska in 1,469 fms, 35:14
Malletia pacifica Dall, 1897. Chignak Bay, Alaska to Monterey, Calif. 65:14
Malletia talama Dall,1916. Bering Sea to Oregone 33:14.
Genus Tindaria Bellardi,1875.~. 35:14
Tindaria brunnea Dall, 1916. Bering Sea to Tillamook, Oregons .
Tindaria californica Dall, 1916. Santa Barbara to San Diego, Calif. 53:14
Tindaria cervola Dall,1916, Off San Diego in 822 fms, 35:14 ,
Tinderta Atecfenta Nall,1916. Off San Diego in 822 fmse 33214
Tindarfe gibbsii Dall, 1897. Queen Charlotte Isiands to Coronado ids, 3/ih4
We oe miter
i]
ee | #45= p 6
“< ° Pindarta a, pall, 1897. Off Sitke, Alaska. to Santa Barbara Ids. in
_ “deep water. 33314
Tindaria martiniane Dall, 1916. Oe pe San Heoidn to. Santa Barbara Islands
in deep water. 33:14
fTindaria mexicana Dall,1908,. San Bagot. Calif. to hoafules, hestcn in
deep waters 33:14
Tindaria ritteri Dall, 1916. ort La Jolla, . California in 293 fms. 53314
" Family GLYCYMERIDAE
Genus Glycymeris Da Costa, 1778 34:3
Glycymeris corteziana Dall, 1916, Santa Catalina. Ide to South Coronado
Islands 54:3
Glycymeris keenae Willett, 1943, Forrester. Island, Alaskas 3413
; * Glyoymeris migucliana Dall,1916. Oregon to Magdalena Bay, Lower Celif .
] and the Cortez Bank. 34:3 yo) ea .
. ee a att profunda Dall,1679, Off Catalina Island and Redondo Beach,. Cel.
Glycymeris septentrionalis ie Mddgendorff), 1849, Aleutian Islands to
; Forrester iio 0434
q gl cymeris subobsoleta Carpenter, 1864. Meubten Tetehar to soda Calif.54
Subgenus Tuceta Bolten,1798. 34:4
A *#Glycymeris mult SEES Sawerby, 18326 Newport Bay, calif, to Guaygquil. 34:4
| F IMOPSIDAE
Genus iindoate Sasso,1827,. 34:5
Limopsis akutanica Dall, 1916, Off Akutan div Aleutians, | 72 fms 3435
: Limopsis diegensis Dal1,1908. Santa Barbara islands to Coronado Id. 34:5
| ‘ Limopsis skenea Dall, 1916. Bowers Bank, Bering Sea in 30 fms. 34: 6
7 Subgenus Bipleconia Dall,1908, 34:5
: Binet vaginatus Dall, 1891. Bering Sea and Aleutian Islands. 3435
4 a ee
Genus Area Linnaeus, 1758. 34: 5
Peete azcopets Von Koenen,1885, 54:5
badd solida Brod erip and Sowerby,1833. Santa Monica, Califs oi Patta,
A ‘Peru. 6 $435 $
Subgenus Acar Gray, 1847, 34:6
Aroa pernoides Carpenter,1857. ( Area bailyl Bartsch,1931). nomen Beach
' (near Santa Monies) to San Geronimo Island, Gulf of Calif.. 34:6
Subgenus Barbatia Gray,18474 34:7
Arca reeveana d‘Orbigny,1846, Santa Monica, Calif. to Peru and a Gabdepage
Islands. 3437
Subgenus Larkinia Reinhart,1935. 3427
Arca milticostata Sowerby,1833. Newport Bay, Calif, to Panama and the
Gallapagos Islands. 34:7
“Genus Bathyarca Kobelt,189h, 34:7
Bathyarea wicteee ( Dali),1908. San Diego, Calif. to Penna 3437
Bathyarea pompholyx ( Dall),1908, Santa Barbara, Calif. to the alee
Islands and mid @ Packie in deep watere 5437
Family PINNIDAE
, Genus. Atrina Gray,1842. 5427
| Atrina oldroydi Dall,1901. San Pedro, Calif. to Geares: Island and oh am
Bay, Lower Calif. 54:37
Family PTERIIDAE
Genus Pteria Scopoli,1777. 34:8
Ns date sterna Gow. Gould,1851. Hueneme Point, Calif. to the Gulf of Calif.
and south to Paita, Peruse 54:5
* Pteria vicidozgova Dall,1916, Long Beach, Calif. 34:8
HA Bee ? 6 oe ‘ : m
ee er ere eee
Bodalicd i Gleeee ag eee a! Oredeny Tete Goreiade Tetepen to mage Also
"0 Relantic. S419
Family PHILOBRYLIDAE
Genus Philobrya Carpenter,1872,_ 54310
Philobrya setosa Carpenter, 1864. Forrester Island, Alaska to Gulf of Calif @
Fanily DIMYIDAB
Genus Dimya Rouault,1848, 34310 ;
Dimya californiana Berry 1936. Santa Monica, Calif. in 100 fms, 343 iv
Dimya coralliotis Berry,1944. 10 miles off Hontinpton Beers Calife 37:11
Family OSTREIDAE
Genus Ostrea Linnacus,1758,. 54311
* Ostrea palmuls Geppeneen 147, 34311 7
Gstrea lurida Carpenter,1864. Sitka, Alaska to Cape San Lucas, Lower Cal, 54:11)
Ostrea lurid laticaudeta Carpenter,1864. Puget Sound to Gulf of Calif.34;11 9
Ostres lurid: expansa Carpenter,1864. Monterey to San Diego, Calif. 34:11
Ostrea conchaphila Carpenter,1864. Redondo Beach, Calif, to Panama. 34:11
Ostree chilensis Philippi ( Introduced) lioren imi, Newport BaySe S412
Ostren virginies Gmelin,1792. ( Introduced) 34:12
Ostres “laporowsti | Schrenck ( Introduced) 34:12
i eins ly PECTINT DAR
Genus Pecten Muller,1776. 35:3
Pecten dicgensis | Dall, 1898. Monterey, Calif, to San Benito Ids, 3534
“Subgenus Chiamys Bolten,1798. 35:34
Pecten hericius Gould,180, Port Althorp, Alaska to San Diego, Calif. 35:4,5
Pecten hericius pupetensis I.S. Oldroyd ,1920. Craig, Prince of Wales Isied,
“to Newport Bay, Calif. 3535
Pecten hericius tlbidus [oll,1906. Aleution Islands, 35:6
Fecten hastatus eer soa es Monterey to off Newport Bay, Calif. 35:6
Pecten hincsii Carpenter,1864. Bering Sea to San Diego, Onlif. 35:6
Peeten hindsit _jordani Arnold,1905. Forrester Island, Alaska to Puget Sound
* Y Poeten nee ae sida Oldroya, eee Portage Bay, Alaska to Puget Sound.
Peete a ie ae “iddcendore®, 194. Bering Sea, Umak Island and the Aleut
\ iene, Gots:
Feeten loves Hertloin,1935,. Catalina Island to Gulf of Calif, Galapagos.35:8
" ‘Subvonus Patinopecten Dall,1898~ 3538
Pecton caurinus T@ mid, 18506 Wreneer. Alaska to Humboldt Bay, Calife 35:8
~ Subgenus “Leptopecten Vorrill,1897. 3539
Peeten 1l.tiaur> tus CONTSG y ns San Francisco Bay, Calif. to Gulf of Cnlif=
sorrais 3b 9
Pect nm Ue icvestur rm motimeris ‘Coneed, 1837. lionterey, Calif. to Gulf of
fe tat if rnin 35.9
+ Pec ton. ie gensi: c'Irbienv,1847- Santa Barbara Islands to Perw.d5:10
bb, emia P14 Sake cerium Dell,1898. 35:10
oy ear eus avis Tea. Sir, one 50310
Wee me os ram
;
P eton cireuliris “Regul. uleatus Carpenter,1865,. Santa Barbara, Calif. to
Cope Ban Tueas, Lower Calif. 55:11 ae
e
Fe Soren caae se
. #45 p 8
lsella recta flabellata (Gould),1850, Vancouver Island to San Diep .°:15
sella fornicata a Carpenter ),1864. Trinidad to San Pedro and Cortc »
Banke 36: 14 bs
_ Subgenus. ae Megerle von Muhlfeld, 1811,
feel la pallidula ( Dall),1916. Off Bodega Head, Calif. and south to Ocrros
Island, Lower Calif. in deep water, 36:14
Subgenus Brachidontes Swainson,1840. 36:15 :
‘Yolselia demissus ( Dillwyn),1817. ( Introduced). San Francisco Baye 36:15
Subgenus ( Uncertain)
Wolsella diegensis ( Dall),1911. San Francisco Bay to Cape San Imeas. 3631.5
Genus Botulina Dall,1889. 37:3,4.
Botulina denticulata ( Dall), 1871. Santa Barbara, Calif. to Acapulco, iicx.
is 37:4,5,6
Genus Botula Morch,1853~. 37:6
; Subgenus Adu: Adula He & 4. Adams, 1857. 37:6
_ Botula falcata ( Gould), 1851. Coos Bay, Oregon to San Diegos 37:6
» Botula californiensis ( Philippi), 1847. Vancouver Island to San Diego. 37:6
oe enus Dacrydium Torell1,1859. 37:6
OS ion pacificum Dall, 1916. Bering Sea,1,401 fmse 37:6
Genus Lithophaga Roding,1798. 37:6,7
i Subgenus Diverus Dall,1898, 37:7
_ Lithophoge plumula ( ely ),1844. Monterey, Calif. to Patagonia, 37:7
_ ~~ $ubgenus Myoforceps Fischer,1886~., 37:7
_ Lithophaga aristata Ditiwyn,1817. La Jolla, Calif. to Ferue Atlantice 37:7
' Subgenus Labise Dall,1916. 37:7
ghis Uheh attenuata Deeheyee, 1836. Monterey to Patagonias 37:7
ie Gonus Modiolaria Beck,1838 ( Musculus Roding) 37:8
Modiolaria nigra ( Gray), 1824. Aretie Océan to Oregon, Circumboreal. 37:
Wodiolaria nigra obesa ( Dall), 1916. Arctic Ocean to Cape Flattery. 37:9
. lodiclaria protracta ( Dall),1916. Nunivak Island, Bering Sea, 37:9
_ Woeiolaria olivyecea (Deall),1916. Bering Sea, Umnak Island, Alaska. 37:6
- Modiolaria imprcssa ( Dall), 1907, Petrel Bank, Bering Sea. 37:9
© Wodioleria taylori ( Dall),1897. Victoria, Vancouver Island, BeC. 37:9
- Wodfolaria substriat» ( Gray) ,1824. Aretic Ocean to Puget Sound. 37:9
ae Mociolaria corrumita ( Stimpson), 1851. Arctic Ocean to Puget Sound. Circum
; @boresl. o7:39
, Modiolaria vernicosa ( Middendorff), 1849. Bering Sea to Sitkae Also
Okhotsk Sen. 37:9
Modiolaria phenax ( Dell), 1915. St. George Island, Bering Seas 3739
Wodioleria marmornta ({ Forbes), 1838. Puget Sounds. Circumboreal. 37:9
‘ Wodiolaria seminuda { Dall), 1897. Bering Sea to Forrester Ide,Alaskas 57:9
we Genus Crenelle Brown,1827. 37:9
if Crenella decussntr “hiontam,1808, Bering Sea to San Pedro. Atlantice 3/°:9,10
ee Crenciin . divaricata c'Orbieny,1845. Santa Barbara Islands to Panamae .\):
a west Indies. 37:1)
© Crenelle loans Dali,1897. Aleutian Islands, eastward to eae Ge Isl:
Mm «Alaska, 87310
» Orenella columbians Dall,1897. Aleutian Islands to San Diego,Calif. oy sii
_ Crenella erisea nN DaLL, 1897. Bering Sea to Sitka, Alaskas 37:11
Grénéila rotundate Dall, 1916. Santa Cruz Island, Calif. in 155 fms. 3/:11
——— "Seder ANOMALODESMACEA
Femily PERIPLOMATIDAR
Genus Periploma Schumacher,1817. 37:12
Poriplom:. planiuscule Sowerby,1834, Point Conception, Calif, to Nerrt
Been Saree hi),
Peripioma alaskanea Williams,1940, Aretic -Ocean to MaceLeod Harbor ,M
~~ Island, Prinee Willinm Sound, Alaska. 37:12
. ees p7 i
Subgenus Propeamussium De Gregorio, 1884, 35312
Peeten alaskensis Dall,I871. Pribiloff Islands, cide 3 Sea, and sout
o the Santa Barbara Islendse dapans 35:12
Peeten davidsoni Dill,1897,. Davidson and Bowers Banks, Bering Sees 35114
ubgenus Deleetopecten Stewart y1930s 35:14 i
* Péeten randolphi Dall,1697« Bering Sea to Cape Blanco, 225-1064 fue
Poeten randoiphi tillamookensis Arnold, 1906. Pribiloff eee Metis
7 to) San Diego, Calif, S5t1l4a — -¢} '
* Pecten artes Dall, W91S. 35:14 1. ;
'Peeten Tanstute tedsae Whiteayes ,1893 4: ‘Beriae Sea to San Diego, ¢ Celite ‘S5114a.
Pecten bistriatus Dall, 1916..Off San Diego, Calif. in 822 fms. 35¢]4a
Peeten incongruus Dall, 1916. Off San Diego, Calif. in 684 fms. 35:l4a ae
Feeten | binominatus Hanna ,1924( P, andersoni Dall 1918) ae eee and Union: a
Strait, Arctic Ocean. 35:l4a t : ; Ee am
Subgenus Cyclopecten Verrill,1899, 35: lé4a :
Peeten eatalinensis Willett, 1931. Off Catalina Telend and. Redondo. Beachy
Galifornia in 75 to 100 fms» 353 Lee :
* Pecten whiteavesi Dall. 35:l4a
Genus Hinnites Defrance,1821, 35:11 |
Hinnites ‘@iganteus Gréy, 1625. Aleutian Islands to 1ingielone Bays Lower eality |
Family LIMIDAE : <
“Genus Lima Bruguiere,1797. 35:14b es | se s
Subgenus Mantellum Roding,1798. $5:14b A
Lima dehiscens Conrad,1857« Monterey, Califi to benpuleg, lon: 56114
Subgenus Limatula Wood,18$9. 35314b °
Lima attenuata Dall, 1916. 35: 14b° ; y 3
Tima subauriculnta Montagu, 1808. Forrester Island, laaene to Be Quinttn | an
-Bay,: Lower Calif, 35314b ea
Family ANOMIIDAE
Genus Anomie Linnaeus, 1758. 3633
Anomia peruviana a cashed bates ‘San de cae cali. ‘to shake and the Gettapagoe |
~~ Islands. 96:33
_ Genus Pododesmus Philippi, 1857. 5623
' Subgenus Monia Gray,1849, 36:3 |
Pododesmus. macroschisme ( Deshayes),1839. Southern Bering Sea from tie. Prib- E
silof Islands to Japan, and the Okhotsk Sea on the west, end on the . 4
east south to and including the whole coast of Lower Calif, 36:3
Pododesmus foliata Broderip San Pedro, Calif. to ca hee ac 36:4 le
oe er Seti Pie , Wes:
Genus Mytilus Linnaeus,1758. 36:7 «
Mytilus californianus Conrad,1837, Unglaska, Aleutian Islands, eastward and
southward to Socorro talon Mexico. 36:7
Mytilus edulis: Linnaeus,1758. Arotic Ocean to Cerros Island and worldwide
in temperate waters. 3637 41:7-13 ; a
ils grayanus Dunker,1853. San Pedro to Sin Diego, Cale. 5620,9087i11, |
4137-13,
Subgenus “Hoxy'momya Moreh, 1850.5: 36: 9 :
Wiytilus stearnsi' Pilsbry & Reymond,1898, Santa ‘peraee Calif, to Oaxaca,
exico. o6319
Genus* Septifer Recluz,1848. 36: 1s 4
Se: ‘tifer bifureatus. ( Ginred), 18376 Crescent tite, calif. to Gulf of Calif. |
Sop tifer bifuroatas obsoletus Deli,I916, Santa Barbara to San ‘Diegoe ha ;
Genus Volsella Seopoli,1777.« ( Modiolus Lamarck,1799).« 36:12
Volsella modiolus’ ( Ecuene)., 1758, Arctic Ocean to Monterey,Calif. 36:12.
Yolsella capax ( Goncaay, 1687 « Santa Barbara, Calif. to Payta,Peru. 36:13 4
Volsella racta ( mar N? 1837.6 Bolinas Bey, Calif. to Magdalena Bay. 36:13 —
we
:
. to agi ana the
) the Aloutians and Kodiak
N
? oe one Philippa, is
Fintkod ssmavinflatum C Conrad, 1837. ‘Vancouver ide to Guryagqull. 3837
; “to Fo Forrester Island, Aleskays
En sn : sive
“Genus Witiincsl 4 ‘0 rad,]
“Wytininorie ECAR SS Conr
Dernatonye’ eielennelia a Dall),
os ‘im deep water. 48:11 © 0:0...) “i
_-- Dermatomya trosti ( Strong and Hortlein) ,2097 Cost
iv o1, ) ESlands Off -an Diego, Califs 311
-Dermatomya buttoni ( Dall),1916. Monterey
ee berin ee Ss = ieee
Oe eens: apenas Dall, qo16. ene ves
————pamily CUSPIDARI IDAE a
osu Genus Cuspideria Nardo, 1846, 38:3 Wy,
Guspidaria glacialis G.0. Sars, 1878. 0
Cuspidaria sub; Iacialis Dall,1913, Off
| ria 11,1916, Off Sitka,
: snilens Sis Dall, 1889. die
gears ; Jigs BE
pe peeinponaie ( teehee de
Ro eae Panama | Baye 58215 Tae te I
ae Cardi omy oldroydi ( Dali), 1924, Puy
oi nag, Vardionya californica ( Dall), 18864
ae OLS th ee oe { vier 1908.
Myonens SM Llemeebeasks Dall, 1916. Orr”
“) Genus eee Espnter tee SA SR ae
Aone _ Eleotpdon seaber Carpenter’, 1864 Viages ins: Island Ph
AS Ren Gen yantly VERTICORDEIDAR PCa ie
| Genus Verticordia Je de Cy Sowerby, 1644 ( ox Woo
_ Subgenus Tri gonulina a 'Orbigny, 184 ne . shade
seek cameee ornata (‘cd Orbigny), 1846. Mi
J Genus Lyonsiclla Me Sars,1872. 3 Ht at
‘Lyonsiclla alaskana Dall,1694. Southwest of 8 Siti
Catalina Islend, Calif. in 60 fms. 3B: lot
Family CORBICULIDAB
Genus Corbicula Megerle ron shifeld,1élle
Gorhtouts fluminca iuller ( In duced) Col
SoS “——Srder TELEODESMACEA
nae Family ASTARTIDAE
Pe) _ Genus Asturte Sowerby,1616, 3915 A
Astarte polaris Ball,1903. ‘Aleutian’ and Shum gin reumb
| “Ustarte compacta Carpenter,1864,. Forrester I » to Puget |
“Ustarte aTiieeet Dall,1917. Forrester Id. to Puget. Sounds 3936 _
Astarte rollandi | Bernardd, 1666. Pribilof and Aleutian dB £0 | fatty ‘ie
Willis A Sound ae Also Kamchatka» — Se: 6 pes oe oe
a
joeona Dall 188 1¢ So:17
cntytonene paci OF ‘Dall, edbehe i tesenke Strait, Alas . £0 pante Barbar
Ara Te rasta ree v
v \)
wee
Boe bisecta Conrad, 1849, off Al
| Thyasira:gouldii Philippi,1845._ |
Thyasira:trisinuata a! Orbigny, 18465
ee —— ho te pada:
Jit) Genus | eres GeO« Sars,1878s 39:21
Axinopsis. sericatus ‘Carpenter, 1864 rt tan I
eee aloutious(Dall)1901._
| Taras subquadratus ( Carpe ter), 1as5. OF
Soudochama ee ghee
- Family THYASIRIDAR
Genus’ ‘Thyasira Leach ( in La
the Oregon conBte. 39320.
Noah ectue te
tyne fer ruginea Wi Winckworth,19 at.
“tslands. Also Atlantic and Aret
Lower Galites : a ;
Axinopsis viridis Dol1,1901, Arctic ee
east to the Aleutian an do
tie eras Hite, 826 ( DL
Cape re
~~ and eastward to Sitka Bay, A
Tara orbellus ( Gould), 18525
TE GALE ROTH IAG aS Eh se
ubgenus Felaniella Dall,1899. 5932
Taras dares seri¢atus “Reeve at on
Fama 1 we LUCINIDAB
| «Subgenre Ine olde 4 Cae. ae x aptet
Bi fecoitat edentuloides Verrill, 1870. Sen Clenente 1d
“Subgenus Her ore Gabb,18 66. 4
Te guleenoe: Ta Gininlens Dally
Lueina ae ee 1887
ACE RR AEN, tosTeHORRERENTT oy sc49,
Buecae ns ie na Dail, 1901
Lucina californiea Conrad,1837. C
Lagoon, Lower Calif. AO: 7,8
Subgenus Parvilueina Dall ,19016. 40:8
Lucin: pater lcd Carpenter, 18656 ‘Nunivak Id. to’ Coronedo. Tase 4018
Oproxamata rata Dall, 19014. Monterey, Califa to Ponamey 4038 jah
iter teen
1cin!
7 ,
. » Ae,
Re
. Shumagin ae doomed.
‘Morro Bay be Pedro, Ca aes ‘ao hoe
| ene ify a ne
vibese so Pact oun to ‘Son 2 Bartholone, tae
SC PUALiEgs 18366 403 18 :
Tali eee Monterey to. Santa
| Calits ba 18
re 40319, 20 a
38 aay oe cality to Eneenad
40321 0
19166 ( Paes
ur 24
Honterey, Calif. 40224
*
‘Glihoesdiun fueanum Lt i), 2 1907 oe
Oa Tiangulets. ( "sooty
"Genus Serripes Gc Gould, 1841, :
Serripes ee baba t Deshayes),
_Nemocardium “eenti ilosum |
“Alege to eee cael
eee peligaree a
prack ce sie Se acre
ae res Biase, eee
Guayaquile 41325 —
_ Genus -Laevics dium Sueinson,1840
_ tacvicardium oletum uam{ Sowerby) y 1833, San Bed
‘Tacvicardium substriatum(Conrad),
_ Serripes groenlandi sre},17896—
to Hakodate, Jepan and Puget. 80 nd
laskas
phe Netooendtain Meck, 18766. ALiZT.
Nemocardium ‘centifilosum ( Carpen Muse
aie VENERIDAR aR
_ Genus Dosinia Scopoli, 171T.
Subgenus Doshi Dosinidia Dall,190: oe 4235 |
* Dosinia ponderosa Gray, 1838. San Diego, 9%
Gen us Tivela Link, BOR 6 Ome aan neni
Subgenus Fac! Pachydesma, Conrad, 1854 42% ey
Tivela stultorum ( liawe), 1823— Half Moon a
Genus pan gL Dall, ye ie
sa
1 ico pilex. cs
Calif. hs |
‘
4
ut
a
i
to Gulf of Tehuan- i
Qn alii o Gulf of Calif, and
28. Sitka, dete 42% 1, 8 a
A an Schumather, 1617. 42:8 a, hey 3
as Yantricola Rocher, IBSTs 42:8 ce aay
Art Yates), 1890. Monterey, Calite oe Panama. 42:8
xidomus Conrad,1837. Le
ubttaLla Conrad, 1837. Humboldt ay Ca ote to San Inrtin ‘Island,
Peas diene een eon fein. ee 7 At hes
done fluctifraga ( Sowerby) , 1853. San Pedro, Calif. to Gulf of calif.42: 9
n. ne undatelia ( Sowerby), 1835, Mugu, Ventura Co. to Guayaquil. 42 39 .
Thione californiensis ( Broderip),. 1835 1g Ce Succincta Beha ‘ens’ Calif.
ee Panamae 4231
é Genus Venus ‘Linnaeus, 1758. 423 1o age ee i
. fee ie Mprosnarig. Schumacher, 1617» 42310. ; ‘ |
sae 1871s Neah’ Bay, Washes Little River, Wondoeino Cos
Calif. EBsIO~
i Genus. Bundiard Grinch and Gale, 19316 ‘As 10 nie:
“Hunilaria kennerleyi (Carpenter in gah 1865. Kodiak Toland, Alaska to
Carmel bay, Calif. 42:11
‘ Genus Compsomyax Stewart, 1930. 42:11. s.
| Compsomyax ‘subdiaphana ( Carpenter), 1864, Sannakh Telends,Alagka to Todos
ey Santos Bay, Lower Calif. 42:11 =
ee, Genus. Protothaca Dall,1902, 423 ig te ei a aie |
rotothaca tenerrima ( Carpenter), 1856, joey eee ie ae CBee San Lucas,
" Lower: Calif. 42:12
yee tothaca restoritionensis ( Frizzell), 19504 Puget Sound to Half Moon
a ee. Calif. 42:18
ro ecomines ( Spans 18376 ‘Aleutian Telands south to Kamtohatka
Subeonul Mattes Pie eer, 1900. 42314 Bisa Mp
iene rupis philippinarum Adams and Reeve, 16500 en Puget Sound. —
Ladysmith Harbor, BeC. 42:14,15
uy Genus Irus Oken,1815, 42:15 Day
irae lanellifer as Conrad), 18376 Monterey to eee Diego, Calif. 42315
Genus” ‘Liocyma Dall,1870.—
- Liocyma beckii Dal Dali, 1870. Plover Bay to orth Japan, on the east to Port
pes Althorp, . iS abies, 42415 .
P Te ocyma _Scammoni Dell, 167i, : Port Sinpeges| British Columbia. 42:15
a Liocyme viridis Dall, 1871. Arctic Sea southward to North Japan and on the
: “east to the Kodiak Islands, Alaska, 42:15
_ Liocyma schefferi Bartsch & ant 1959. Spina as Ide, Aleutians to Atka
ee Island. HoetS,
Cs, Genus” Gemma Deshayes 118536 42216. :
2 Gemma gemma ay ae oh Introduced) San Juan Islands to San Francisco
ERA ’ me
o20442416
ifs 42:16 —
" Esophidie ae ee
“Island, Lower Calif. 42: 16
: ‘Fanily FETRICOLIDAE
sub ges Selec larte: stolieska, 1
y Bobet eats pholadiformis Lamarck, 18185
“and San Francis¢o Baye
Subgenus Rupellaria Pleuriau-Bellevue 21802
Pethinole tellimyalis ( Carpenter), 1864 ‘Santa.
oie se Laie nee 423 18, 19 Be
San Mars
sera 45z19; 20°
Family COOPERELLIDAR eo
ee Genus Cooperella Carpenter, 1864. 4
- Cooperella subdiaphana ( Carpenter), ise
: of iy solange UCU AN Sale as
a Family TELLINIDAE. : Due
Genus Tellina Linnaeus, ‘1158. 452
_.. Subgenus TelTinella °Gray* Morch,1853.
pereine idae idee Dall, L891. Santa Barbara. Isl
Subgenus ilerbece Dall,1900. 43:6. a. he
* Tellina lamell a Carpenter ,1857.. 43: 6 “San Die
* Tellina declivis S Sowerby,1868. 43: 6) Catalin J
~" Subgenus Moer Toerella Fischer, 1887. 433 61)
‘ etine salmonea Garpenter,1864. " Aleu
ah Teltina meropsis Dall,1990. San Dieg
if Subgenus Angulus “Megorie, 1811.
‘qelline carpenter Dali,1900. Forres
seuting tabogensis Salisbury,1934.. “Gi
Island to Panama Baye 43:7 —
Subgenus Oudardia Monterosato,1885~ — 45% Aes tea
- Tellina modesta Carpenter, 1664. Vanco er slend ‘to Lower
of
z
"Ros
Le 4336
T Saueanis Feronttiw paN1, 1900, 4578
Jeli ine bodegensis Hinds,1844. Quee :
Californias coe Agee :
ton Japanese 73:9
Genus Apolymetis Som i 9
Apolymetis biangulata’( Carpenter 1856. - ietis. a
Calif. to Bnsehada,- ioe Calife ee 10 See AT
i Genus Macoma Leach,1819« 483 10. aged
Macoma middendorffii Dall, 1884, Bering Strait, § sou h ti
~~ «Alew tian islands oan eastward na ie ir Abort, Is 1
‘Harts Calif, 4 435. S| Sane
2 Deshayes), 1858, Coma droad,. Avesta Qoean, Bering Bal
ward to the Shumagin Islands. 43:11 ote hay
ot Conrad), LBSTs. Kodiak Island end Cooks. Inlet, ‘Alaska and as
Ss ( Hanley) 1645 (G Macoma ecubadee aeaaanet Bering str
Japan.on the west ‘and %6 Monterey on the east. 43:12) eke
aS $ Se and Sy oe Arctic Ocean to San Dore
90 O. Paget. Boone. to Coos ‘Bay, Oregons 43314
2a de ge Alaska and south to Coronado
21864. Fuca Strait. to San, Diego, Calif. 433 15
Sanat Bay to Gulf of Lia oie 4881 18 Dat
ere f
1 ae Sound ne ou ‘aia calif. 43: ve
ould, e561, ae Fedro, ‘Calif, a alide; pre 48¢17
hota 1852. Cataline Island to Panamae 43:17
Santa Cruz, Calif. to Gulf of Califs 43: 17
_ Forrester oh Alaska to Tia ee
Geng oh Ischmnecee 1847, 43: Ae ‘fh
Subgenus Gobraeus Leach, 1852, 43:21 | ve
is C Carpenter), 1864. San Diego, Calif, to Cape gan Lucas.
Fornion ( Conrad), 1888. Japan,Kamtchatka, the one Islands
Sa peers Melsty 43% fea
»
Siliqua : alta ( Broderip and Sowerby) ,1629. ¢ Cooks
FESO nasuta Gould, 1051, San Pedro,
‘Spisula ee alaskena pall, 18946 patie ‘Geuah ae : Sapa
Schizothaerus nuttallii pecila Se A "Gould), 1850. oatak Teter
Geri edentule % Gabb) 1
sag ee Redondo Beac
Subscnuk” Wattal li
-Sanguinolaria nuttal
_ Lower Calif. 43322
Genus Hoterodonax Moreh, 1853. |
Atlante: Ce 45: 35 eis
‘Genus Tagelus Gray,1847 “43: 23 i
BO californianus ( Conrad) 18376 1 Mo te
; “Tehuantepece 43:23
Tagelus affinis ( C.B. Adams), 18526. ee
Tagelus subteres ( Conrad), 188 Santa Barbara
Tagelus politus Carpenter 18574 Santa eo
eS oaty SOLENIDAE ee
Genus Solen Linnaeus,1758. 43: eT cy vee
Solen sicarius Gould, 1850. Vancouver Island, Be Gs te 3a
7) Galafornia, 43; 27 Bo ye ENN OR EN
Solen rosaceus. Carpenter, 1864. ‘Sante Barbara, calif, to
Genus Ensis Schumacher,1817. 45327 ae ian eek:
Ensis. californicus Dali 218996 Monterey, Calif. to
Genus Siliqua Megerle von Muhlfeld,1811
Siligqua lucida ( Conrad), ke Bolinas Bay
~ Lower California, 43:27
“Siliqua media ( Sowerby), 1839, Bering Son. and Ar tic acd
. Siliqua Siliqua patula ( Dixon),1788. Aleutian Islands smo
“ward to Bering Sea and Siberia. 48% eo
| Family MACTRIDAE | ee)
Genus Anatina Schumacher, 1817. 44:3
Subgenus Raeta Gray, 1653. PAA Ne ae
Anatina undulata ( Gould),1851. San Pedro,
, Genus Mactra Linnaeus,1767. A41398
Mactra ealiférnica Conrad, 1837%
——~"Genus Spisula Gray, 18376 44i5e22 |
Spisula dolabriformis Ponest Oat Redo! do
a ea Waele oe Lane
to Bering Sea and the Aleutians and -eastward to
Japan, the Kurile Islands and the Okhotsk Seas :
Spisula hemphillii ( Dall) ,1694— ‘Redondo Beach,
~ waguse 44:19,20
Spisula catilliformis Conrad, ers ‘Neah Bay. to S
Spisula falcata ( Gould), 1850. Puget Sound to
“onado Islands. 44:12,21
Spisula planulata (Conrad), 18376 Monterey. ‘Calif
Genus Schizothaerus Conrad,1853.° 44:22. 20
Schizothaerus nuttallii ( Conrad) ,1837. Boltiias, €
Lagoon, Lower Calif. 44:22,23,24 i
44322 ae
Family MESODESMATIDAB es
Genus Ervilia Turton,1822. 44:25 ~
Ervilia aslifornice Dall,1916. San Pedro to
me y
o Bering Island
Besphorry, Id. 44325 —
ne hey A
nese. Const
in and to Vaneouver
ifornioa C Selene ies7. Chieogore felend, Alaska south to
lobampo, Mexico. 44:26 We if} 2h AN Be
| Sphenia Turton,1822. 44: 27 ie Co :
fragilis Carpenter, 1857. Oregon to Mazatlan. 443 27
ovoidea Carpenter 1864. caniaaad Ferenes to nieeh Sound a nd San
Mer eek,
a trunculus Dall, jote. San Diego, calif. to Paneheet ita: 27 )
. .. <Bphenia pho Sa Dall 916. olinas ‘Boy to Imperial Beach, Califs 44:27
RS Pesespag @75 Yall. oh Sphenia nana ( ce basal ES
& 44s at
Moe eine edand’ to los uae. 44: a ge
i 4 1843. Monterey,Calif. to Salina Cruz, Mexe 44:28
uteole cerentay dete tater, Calif. to anh Mexico .44:28
SL iz ( ali),1 “Esteros Bay, to Catalina teen 44+ 229.
mo temo Dall, 1912. 44; “2 sae aes
Gripping celifornica Dall, 1912. San Diogo, calif. to Guadelops Ide 44:29
yU\s.) Family SAKIC AVIDAE ‘
Genus. Panope Menard,1807.. Ad: jog
bi ‘Panope peer one Gould, 1850. Forrester Telana, oe to Seammons Lagoon,
2 er 44:30 i
Panomya tae Dall, 1916. Unalaska to ‘the hchuneetn: ee 44; 30
Panomya beringiana Dall, 1916. Eastern Bering Sea 44:31
Panomya ample Dall, "1898. Arctic Ocean,Aleutian Islands, i Puget Sound ?
- Genu ixicavella Martens,1885. 44:31
Saxicavella. ‘pa iea Dall, 116. Redenee Beach, Calif. to Todos Santos sees
“Lower Calif, 44:31
Genus Cyrtodaria Reuss, 1809. ve Sh.
cyrtodaria kurriana Dunker, 1862. Arctic Ocean and south to Norton Sound,
Alaska. AIso on he) wart coast of Greenland. 44:31
Genus. Saxicava Fleuriau de Bellewue,1802. 44:31
Saxienva. ee Linnaeus), 17676 Arctic Ocean to Panamae Also Atlantic.
44332
Saxicava tio teate | i: Linnaeus), 1771. Arctic. Ocean to Panama. Also Atlantic.
Family “PHOLADIDAE ~ } OM see
Genus Barnea ( Leach) Risso,1826. 44:32,33 ee |
Barnea pacifica ‘tearns, EBTLs San Francisco Bay to Scammons Lagoon. 44:32,33
Genus tees G: Ee Blain 1
Martesia xylophaga Valenciennes
_WMartesia intercalata Carpenter, 8 =
Ko i: STE ‘Navea Gray, 1851. 44335 3. oe
- Navea subglobosa Gray,1851, Tables. calie, he ee
Genus: aera bel om ae :
ott Oregon era wushinglate 44356
Family TEREDIDAE ee
Genus Bankia Gray,1840. A436
--Banlcia® setacea oa Tryon 1863. ‘Bering eas
Heretic Genus Toeredo Linndeus, 1758. WO eT aie fe
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