Reports

REPORT

OF THE

die

‘VOLUME IX; ANNELIDS, PARASITIC
WORMS, pO LQZOANS, ETC.

PART C: HIRUDINEA

By J. PERCY MOORE

+
SOUTHERN PARTY, 1913-19.

OTTAWA
THOMAS MULVEY
PRINTER TO THE KING’S MOST EXCELLENT MAJESTY
is 1921

Issued February 4, 1921,

+h A

; NORTHERN PARTY, 1913-18, ust
: SOUTHERN PARTY, 1913-16. By Rudolph Martin Anderson..............(In ars

: COLLEMBOLA.: By Justus W. Folsom:: 205)... 2 cousa Whee nse eebaee cee (Issued July 10, 1919 s
3 ei A gla INSECTS. By iNfathinn Banks!.'shi a beeen (Issued July i, 19.

: MALLOPHAGA AND ANO

: COLEOPTERA.

VOLUME I: GENERAL _ INTRODUCTION, NARRATIVE, ETC.

VOLUME Il: MAMMALS AND BIRDS : Naess aes nh

RRR ERO EEE EEE HEHE EEE EEE EE EEE EEE HEHEHE EEE EEE ERED

ee eee ee eee ee ee

. VOLUME III: INSECTS :
INTRODUCTION. By CG. GorJon Hewitt Ard Cael ba Mee A oh. (Issued December 10, 19

Crane-flies. By Charles P. Se
Mosquitoes. By Harrison G. Dya
Diptera (excluding Tipulide on ‘Culicide). By J. R. Malloch......

Mallophaga. By A. W. Baker
Anoplura.. By G. F. Perris and G.H. F. Nuttall......... c+ s4++ (Issued September 12, 1918),

Forest Insects, including Ipide, Cerambycids; and Buprestide. By J. M. Swaine. ~
Carabide and Silphide. By H.C. Fall.
Coccinellids, Elateride, Chrysomelidx and Rhynchophora. (excluding Tvldes). me We

Dytiscida). By J: D: SHermany Free 265 egies cases ote (Issued Décor 12, 1010). my ;
“ Part F: HEMIPTERA. By Edward: P: Vari Dunee. s/c: Genesee t hei ee es baels (Issued July 11, Baia
Part G: HYMENOPTERA AND PLANT GALLS. -

: SPIDERS, MITES AND MYRIAPODS..

Sawflies. (Tenthredinoidea). -—By Alex. D. MacGillivray.
Parasitic Hymenoptera. ae Charles T. Brues.

Wasps and Bees. By F. W..L. Sladen.

Plant Galls. By E. Porter HONG 2 eet Fc Ae ced Fn is Dee ee sire

Spiders. By J. H. Emerton.
Mites. By Nathan Banks.

Myriapods.. By Ralph V. Chamberlin... ..........,00.02-000seeeees + (Desued July Uu, 1919).
Part i: LEPIDOPTERA: By Arthur Gibson i. acts sdk eek Mawes ae ea bal (Issued January 10, 1920
Part): ORTHOPTERA.: By Bis Walkers es sere Sa ic hte Pe a (Issued September 4, 1920) x 2)

: INSECT LIFE ON. THE WESTERN ARCTIC COAST OF AMERICA. Se ptlen:

: FRESHWATER ALGAE AND FRESHWATER DIATOMS. By Charles W. Lorie :

“MARINE: ALGAE. (By BSS. Collinsiciin Gin o0 ooh. 1S Faia pine Me aoa
FA DAS yy bm DCATNOGS si). nn ere ore arco eclele cp ee ehh Ue eiglaihte « o Liotaigtaahs wile ne f
: LICHENS. By G. K. Merrill...:... ME SNe ae ale eet te Mos pa eae RR Rin
MOSSES: By ‘ROS: Walliamg. i |. 2-00. Looe me cinta apie been tihe sige cab eapaaeMetbtete NS le seit

SO LRSM CoN onc Soy cree wren o Ws toseisic niet tet cece ceeseneeeeretsseseesesesasaeredies Cd
VOLUME IV: BOTANY M

wee ee wwe ene reese ne eases eeseveseese Se eeeseoeessseseeesersesceeseeeveseeosisetys

VOLUME VY: BOTANY

Rohe Part A: VASCULAR PLANTS. By James M. Macoun and Theo. Holm.................+. Un eR

. Part B‘ CONTRIBUTIONS TO THE MORPHOLOGY, SYNONYMY, AND GENERAL DISTR na
{" BUTION OF ARCTIC PLANTS. By Fheo, Holes. tots eae NL ae (In press)
Rs} Part C: GENERAL NOTES ON ARCTIC VEGETATION, By Frits Johansen. (In preparaion. a
, VOLUME VI: FISHES, TUNICATES, ETC. v3

Pare As PASTS ee dy Fe JONANSON! 2 o4 as hed 2 aera ne eee ais cs Gabe Cp yeveoepye Mop ales ees (In preparation).

3 Part B:-ASCLDIANS) JETC: * By A; G- Huntemani ss 1a. 55 2 ate Sa 'ie eres ele tein sme Un Propeechney
it VOLUME VII: CRUSTACEA —
TD Part A: DECAPOD CRUSTACEANS. By Mary J. Rathbun..:... nf SNRs . (Issued August 18, 1919 iyi ee
le Part B: SCHIZOPOD CRUSTACEANS. By Waldo L. Schmitt salbtale ibe (Issued September 22, 1919 aK pee:
: Part C: CUMACHA. By W. 7 ea rena A EIST haa apa akUlememe erecctere aie carl Ya catia ale . (Issued October 16, 1. ah
ai Pari) seOPO DAL y DYE hE Boone sui ico. Wadiat stink oisle pin abig fe els cle ote, «eae (Issued November 10, 1920).
“ Part E: AMPHIPODA. By Caneaes oe ‘aaueucprad Be, VRE Ne pi ah CMD ay AS (Issued September 7, 19.
| A Part Fi PYCNOGONIDA, . ‘Leon J. Colle), i. a chide ooo da css earege cg ede’ (Issued January 3, 1921
ee Part G: EUPHYLLOPODA. By fF. Johansen Se Gaal bd aint oo ARC aieln Lrg etctata le On rosie (In preparation).
z Part H: CLADOCERA. By fnaricey cin siete Raat Nee i aie dD hala yao teal (Issued Tons 23, 1920).
es Part -I: OSTBACODA, ‘By B.-W. Sharpe ce. 4 wreleic + <j beales clos ethnic voo\u ¥ie.0 vlesle wa emiak (In preparation Se

x Part J: FRESHWATER GOPEPODAT ‘By C.. Dwight Marsh)... .3. 2.3. April Sh a
ais eet K: MARINE, COPEPODA: . (By As Willey oi... Sogo le hae eee PEE SS: June 25,1920).
Ae L: PARASITIC COPEPODA. By Charles B. Wilson. . Tag 19.
ae, Part M; CIRRIPEDIA, By H. A. eee: PAU EAE YELM SUK, rosy srinaas PIE EL Ms yer itt bes
Bey rs
ie q | PAD aban
3 ¥) * yA ag x . : y

ay ele ee

mePOR'T

OF THE

CANADIAN ARCTIC EXPEDITION
IT S-1O

VOLUME IX: ANNELIDS, PARASITIC
WORMS, PROTOZOANS, ETC.

PART C: HIRUDINEA

By J. PERCY MOORE

SOUTHERN PARTY, 1913-1916

OTTAWA
THOMAS MULVEY
PRINTER TO THE KING’S MOST EXCELLENT MAJESTY
1921

4269 Issued February 4, 1921.

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nih ee A, Ee Oe ron

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Hirudinea of the Canadian Arctic Expedition, 1913-18.

By J. Percy Moore

University of Pennsylvania.

The Canadian Arctic Expedition, from 1913 to 1916, yielded a very few
leeches. These are contained in four bottles sent to me along with a few bottles
of planarians by Mr. Frits Johansen. There are but two species, already well
known from the seas of northern Europe but as they have not been recorded
previously from American waters it seems worth while to publish a notice of

the extension of their known geographical range. Both belong to the family
Ichthyobdellide.

Family ICHTHYOBDELLID.
Abranchus scorpii Malm.

This species, with which A. brunneus Johansson is probably identical, is
represented by nineteen specimens varying from 14 mm. to 40 mm. long and
from -8 mm. to 2-7 mm. in maximum diameter. All of the specimens are nearly
terete or only very slightly flattened, the young ones most so. The greatest
diameter is shortly behind the middie from which it tapers both ways but
unequally. The anterior end is more slender and more gradually tapered but
there is no distinct division into two regions. In the better preserved specimens
both oral and caudal suckers are large, thin and widely expanded, the oral
relatively less so on the larger examples.

On none of the specimens is the annulation strongly marked, the somites
being dominantly triannulate with the secondary annuli more or less well
differentiated. Thus in the widest part of the posterior region the neural or
middle primary annulus is enlarged and clearly subdivided into secondary
annuli which, however, are smaller than the entire first and third primary
annuli so that we have the formula (b! + b?) <b? + b4> (b° + b®). In the an-
terior region development of annuli has gone less far, being recognizable only
in the neural annuli. The formula is, therefore, A! <(b* + b‘)>A%. The
sensilla and larger non-segmental cutaneous sense organs are developed on
annulus 6? and a few smaller ones on b', b? and 6’.

-The fresh colour as described in the collector’s notes is ‘“‘a dark purple-
brown main-color; strongest red in shape of segmental bands. The two ter-
minal suctorial discs pale inside with the brown muscles shining through. Eyes
black.”” The preserved specimens differ considerably chiefly as a result of
size and fading. Those from station 42™ are most deeply pigmented, being
of a dark reddish brown above, paler below. The margins of both discs, two
transverse bands on the oral disc and radiating lines and marginal spots on
the caudal disc, several transverse bands on the body, and the region about
the anus also paler. Those from station 49% are pale reddish brown above
with whitish transverse bands especially conspicuous laterally on the first
annulus (A!) of each somite. All of the parts indicated as pale reddish on the
specimens from 42" are on these whitish. Small individuals are nearly
colourless, The sensille and non-segmental sense-organs are clear white and
very conspicuous on dark specimens. The three pairs of eyes are black and
arranged as figured by Johansson. The caudal eye-spots also are black, small
and arranged in a circle at the central ends of the pale marginal spots.

Following is a list of the specimens with labels and collector’s notes quoted
in full:

4c¢ Canadian Arctic Expedition, 1913-18

“Station 41x, C.A.E. On just dead Cottus scorpius L. Bernard harbour,
Northwest Territories. End of August, 1915. F. Johansen, coll.’’ Four
small ones.

“Station 42m, C.A.E. On just dead Cottus scorpius L. Bernard harbour,
Northwest Territories. Dark purple. F. Johansen, coll.’’ Three full grown
specimens.

“Station 49g, C.A.E. Onskin of dead Cottus scorpius L. Bernard harbour,
Northwest Territories. June 15, 1916. F. Johansen, coll.”’ Twelve specimens
of various sizes.

Oxytonostoma typica Malm.

A single specimen having exactly the appearance of Malm’s figure of
Pontobdella granulifera with which this species is probably identical.

Length 22-5 mm., maximum width (behind middle) 4 mm. The body is
strongly fusiform and in the posterior region slightly flattened but strictly
terete anteriorly. Much enlarged caudad of the middle and tapered to the
very narrow anterior region which immediately behind the oral disc measures
only one-tenth of the greatest diameter. Posteriorly it tapers less, the width
at the anus being about one-fourth of the maximum. Oral sucker small and
very deeply cupped. No eyes. Caudal sucker neither deeply concave nor
strongly expanded, being about one-half the maximum diameter.

Somites in the middle region are strongly marked, as though the body
cavity were extensively developed and subdivided by disseppiments, as in
earthworms. ‘Twelve such are very distinct but the constrictions fade out
toward the caudal end. There is here no trace of annulation. In the slender
anterior region the somites are less distinct but there is some trace of annulation
which extends onto the head also. On the ventral surface of the anterior half
of the posterior region are six pairs of rather conspicuous, low, rounded elevations
situated just behind the constrictions. .In the center of each appears a small
orifice (nepridiopore?).

The integument presents a peculiar shiny surface as though covered by a
thick cuticle like a tapeworm on which no papille, granules or sensillz are
visible. It is of a dirty brownish color, stained dark purple or slaty at the
slight constrictions. ‘The peculiar appearance is probably due to the stretching

of the integuments as a result of extreme gorging of the digestive tract with
blood.

‘Station 41, C.A.E. Bernard harbour, Northwest ‘Territories. 3-5
fathoms. July 20, 1915 (dark purple). F. Johansen, coll.”’ One specimen.

Platybdella sp.

The Victoria Memorial Museum at Ottawa also contains a fish leech from
the Neptune Expedition. It is poorly preserved and cannot be determined
by me.

Length 13-5 mm., width at middle 1-4 mm., diameter of caudal sucker
1-5mm. Noeyes. Caudal sucker prominent, thin and repand. No eye-spots.
Somite appear to be triannulate with traces of the secondary furrows.

“From Sclerocrangon boreas (Phipps). Neptune Exp. 1903-04.”

Aik
+
VOLUME vii: MOLLUSKS, ECHINODERMS, COELENTERATES, ETC. ee s. Me
Part Fas MOLLUSKS, RECENT AND PLEISTOCENE. By William H. Dall. atu
eee (Issued September 24, 1919), sh
} Part B: CEPHALOPODA AND PTEROPODA. Sih,
Cephalopoda. By S. 8. Berry-Berry. Nala
GRADING a ih oaks Se GuAl. a agile ed adc Becy ce uaeme ..(In preparation): =
(Issued April6,1920),
TREO TCH ALY SESS Es Orn, COSDMUDM Ys lehes le gil bse 416.0 baieig V siola o alee Oradea ylaereee ae oleae! cus ais (In preparation Sarid anh
PRO TURAL, ay FLU eee! rarringy yoke th la), gala els loeb blelb atle’ee's le bat (In preparation). re
PARTOGNATHA:’ By-A. G. Huntaman: (cic jc vole seeks chee sd ca bcuseae (In preparation). =
G: ACTINOZOA AND ALCYONARIA. By A. E. Verrill..............eeeevece nce (In press).
: MEDUSAE. AND CTENOPHORA.,. By H. B. Bigelow.............. (Issued June 80,1920).
HY DROIDS. Bey Moiepa Frasers i ee eo otis cys Conall deme p carse ce abel b (In preparation). —

: PORIF
VOLUME IX: ANNELAIDS, PARASITIC WORMS, PROTOZOANS, ETC.

! : OLIGOCHAETA.
- Lumbriculidae. By Frank Smith.

eo iinet sae By Paul 8. Welch..... PM AREY STCAR (SWRI a, Woe ANd (Issued September 29, =
: POLYCHAETA,. By Ralph We Chambering. bid od sen stebeedphosese «be ahebabsled (In press).
SECRETS CODD PuAR hay denies BAGOTE Sha) shel ue trials Wileh palo Wid ale othe ticle Dob aielatlamrelare (In aT en
: GEPHYREA. ‘By ree V. Chamberlin........ Hpk (Issued June 20, 1920).
: ACANTHOCEPHALA. By H. J. Van Cleave

(Issued April 7, Be
f / eM ATL OIA NE VON A AY CONDE siactewsdudchbewdelbecaele l gabn es fubdewutle dnbeme (In preparation).
—) Part G-H: TREMATODA. AND CESTODA.. By Ai R. Cooper, oo. 5.5.0.0. cs cece ees ceee (In press),
iS eearte ten LL Ro EGA TILA s+ Exy a. Peaselb, 2. iio. UN otek ce tecibla sold eth bc ein cai ¢ (In preparation).

_ Part J: GORDIACEA.

SBBOHOZOAY. By J WOMAVORS Soc. ys one uuuen Mele do ae ioe pel Freuue anaes (In preparation).
sKORAMINIFERA.: By JOA: Cushman... fo 0 0 ele pa lee cw eala (Issued February 6, 1920). ais
VOLUME X: PLANKTON, HYDROGRAPHY, TIDES, ETC. ve
“CP GAN KONG By Albere Maan, 1.020 Cuello tye ee Seid ola sine d ain Mabreieies cleus (In hd elle Ve me
MARINE: DIATOMS, "By L. W. Bailey. i... ee lS . (In preparation ae
TIDAL ice RENE de AND RESULTS. By W. Bell Dawson. (Issued October 1, 1920).
OY DARIO GBA BTV re ee an See wll Paiva rants a.) ganda RO ole aie (In preparation). Seu bs,

VOLUME XI: GEOLOGY AND GEOGRAPHY

: THE GEOLOGY OF THE ARCTIC COAST OF CANADA, WEST OF THE KENT
PHENENS AS By Jt de OQ Neh ere ie Tee utis eck laaiae annie ae atouls sie path (In preparation). ©
7 MAPS AND GEOGRAPHICAL NOTES. By Kenneth G. Chipman and John R. Cox. ee)

(In preparation). —

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ea
+
”

VOLUME Xi: LIFE OF THE COPPER ESKIMOS |

THE LIFE OF THE COPPER ESKIMOS. By D. Jenness...........2..0s000: (In press). vies

sy VOLUME XM: PHYSICAL CHARACTERISTICS AND TECHNOLOGY OF THE vA A
COPPER ESKIMOS Na

-THE PHYSICAL CHARACTERISTICS OF THE COPPER. ESKIMOS. By _D. © But
POUBBRS: (IM NAb) IRI Ae wan Vo irs wsly Saaletealoletes Goble aly susie 6h Siw e ence altel = sie'e (In preparation). th?

> TECHNOLOGY OF THE COPPER ESKIMOG....1...0 0.0... ce seeeeees (To be prepared). ®
VOLUME XIV: ESKIMO FOLK-LORE AND LANGUAGE ih ne

: FOLK-LORE, WITH TEXTS, FROM ALASKA, THE MACKENZIE DELTA, AND aie

‘CORONATION GULF. By PPS JONMORS, ee NS Ook Weak cahine clalee CU n preparation). Hf
: COMPARATIVE GRAMMAR *”~ND VOCABULARY OF THE ESKIMO DIALECTS
OF POINT BARROW, THE MACKENZIE DELTA, AND CORONATION GULF. ——
» By D. Jenness............. Le siulcds Nara eiaertiohiy ante lele dol aan warrt cmnmalls vee Oe (In preparation), _ “rsa

VOLUME XV: ESKIMO STRING FIGURES AND SONGS ? ; cae

: STRING FIGURES OF THE ESKIMOS. By D. Jenness..............4 (Ready for press). fy "7
: SONGS OF THE COPPER ESKIMOS. By D. Jenness (in part)......... (In preparation). . — “t
VOLUME XVI: ARCHAEOLOGY Ss 1%
CONTRIBUTIONS TO THE ARCHAEOLOGY OF WESTERN ARCTIC AMERICA. } aN

Re tee ba Cee wei ich Lcd AMUN biases DAWA AWS Ga Meme arg aus @liecs a hidas Uden Salma sb Sd (To be prepared). — re
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