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THE
KAY SOCIETY.
INSTITUTED MDCCCXLIV.
This volume is issued to the Subscribers to the RAY SOCIETY for
the Year 1913.
LONDON: MCMXIII.
THE
BRITISH PARASITIC COPEPODA
BY
THOMAS SCOTT, LL.D., F.L.S.
AND
ANDREW SCOTT, A.L.S.
VOLUME II
/ %
*
COPEPODA PARASITIC ON FISHES '
PLATES
LONDON PRINTED FOR THE RAY SOCIETY
AND SOLD BY
DTJLAU & CO., LTD., 37, SOHO SQUARE, W.
1913
PRINTED BY ADLARD AND SON LONDON AND DORKING
THE AUTHORS
DESIRE, WITH THE MOST SINCERE RESPECT,
TO DEDICATE THIS WORK
TO THE
REV. CANON A. M. NORMAN, M.A.,
D.C.L., LL.D., F.R.S., P.L.S., ETC., IN GRATITUDE FOR HIS UNFAILING
KINDNESS AND ASSISTANCE EXTENDED TO THEM FOR MANY TEARS.
* f * 1>
NOTE BY THOMAS SCOTT.
All the figures, unless otherwise described, have been prepared by my son, Andrew Scott, from specimens examined by the authors.
The illustrations have all been engraved by Andre & Sleigh, Ltd., of Bushey, Watford.
LIST OF THE PLATES.
PLATE I.
Fig. 1. — Ergasilus nanus
„ 2.- — Bomoloclms zeugopteri
,, 3. — B. solese
„ 4. — B. onosi
PLATE II.
Fig. 1-5. — Ergasilus nanus ,, 6-9. — Bomoloclms soleie
PLATE III.
Fig. 1-4. — Bomoloclms solese ,, 5-7. — B. onosi ,, 8, 9. — B. zeugopteri
PLATE IV.
Fig. 1, 2. — Caligus minimus ,, 3-8. — C. rapax
PLATE V.
Fig. 1-3. — Caligus centrodonti ,, 4, 5. — C. labracis
PLATE VI.
Fig. 1, 2. — Caligus rapax „ 3. — C. brevicaudatus
,, 4, 5. — Lepeoplitlieirus hippo- glossi
PLATE VII.
Fig. 1. — Caligus zei ,, 2, 3. — C. pelamydis
PLATE VIII.
Fig. 1,2. — Caligus gurnardi
3-9.— C. zei ,, 10,11. — C. brevicaudatus
PLATE IX.
Fig. 1-5. — Caligus pelamydis „ 6-9. — Pseudocaligus brevi- pedes
PLATE X.
Fig. 1, 2. — Pseudocaligvis brevi-
pedes
,, 3, 4. — Lepeophtlieirus pecto- ralis
PLATE XI. Fig. 1-6. — Sciaenophilus tenuis
PLATE XII.
Fig. 1. — Lepeoplitlieirus nord-
manni
„ 2, 3. — L. pectoralis „ 4, 5. — Demoleus paradoxus
PLATE XIII.
Fig. 1-4. — Iiepeoplitlieirus pecto- ralis
PLATE XIV.
Fig. 1-10. — Lepeopliilieirus pecto- ralis
Vlll LIST OF THE I'LATKS.
PLATE XV. PLATE XXII.
Fig. 1-9. — Lepeophtheiriis pecto- ralis
PLATE XVI.
Fig. 1-3. — Lepeophtheirus pecto-
ralis 4-11. — L. nordmanni
Fig.
PLATE XVII.
1. — Caligus diaplianus 2. — Lepeoplitlieirus hippo-
ylossi
3. — L. thompsoni 4. — L. salmonis 5, 6. — L. pollacliii
PLATE XVIII.
Fig. 1-3. — Caligus centrodonti „ 4, 5.— C. labracis ,, 6, 7. — C. diaplianus ,, 8-10. — Lepeophtheirus hippo-
glossi
,, 11, 12. — L. salmonis ,, 13-15. — L. pollachii ,, 16-19. — L. sturionis
PLATE XIX.
Fig. 1-9. — Liitkenia asterodermi ,, 10. — Elytrophora brachy-
ptera ,, 11-18. — Phyllothreus cornutus
PLATE XX.
Fig. 1-8. — Nogaus ambiguus „ 9. — Chondracanthus annu-
latus 10. — C. merluccii
Fig.
PLATE XXI.
1 . — Lepeophtheirus sturi- onis
2. — Pandarus bicolor 3,4. — Cecrops latreillii
5. — Orthagoriscicola muri- cata
Fig. 1, 2. — Trebius caudatus ,, 3. — Dinemoura producta
,, 4. — Echthrogaleus coleop-
tratus ,, 5, 6. — Pandarus bicolor
Fig.
PLATE XXIII.
1, 2. — Elytrophora brack y-
ptera
3. — PhyUothreus cornutus 4. — Liltkenia asterodermi
5, 6. — Anthosoma crassum
PLATE XXIV.
Fig. 1,2. — Caligus curtus „ 3,4. — Phitorthragoriscus ser- ratus
PLATE XXV.
Fig. 1-6. — Thersitina gasterostei „ 7-9. — Caligus curtus ,, 10. — Lepeophtheirus thomp-
soni ,, 11-16. — Caligus minimus
PLATE XXVI.
Fig. 1-3. — Dinemoura producta „ 4-19. — Pandarus bicolor
PLATE XXVIf.
Fig. 1-8. — Dinemoura producta ,, 9, 10. — Cecrops latreillii ,, 11-24. — Philorthragoriscus ser- ratus
PLATE XXVIII.
Fig. 1-7. — Cecrops latreillii ,," 8-18. — Ortliagoriscicola muri- cata
PLATE XXIX.
Fig. 1. — Echthrogaleus luikeni 2-5. — Lernanthropiis kroyeri
LIST OF THE PLATES.
IX
PLATE XXX.
Fig. 1-8. — EcMhrogaleus liitkeni ,, 9-17. — Lernanthropus krijyeri
Fi.
Fig.
Fig.
Fig.
Fig.
Fig.
PLATE XXXI.
1-6. — Elytrophora brachy-
ptera 7-18. — Dichelestium oblongum
PLATE XXXII. 1-11. — Hatschekia mulli
PLATE XXXIII.
1. — Hatschekia cluthx 2. — H. labracis 3, 4. — H. hippoglossi
5. — Thysanote impudica 6. — ? Lernteorjoda lampri
PLATE XXXIV.
1-5. — Hatschekia cluthx 6, 7. — H. labracis 8—11. — H. hippoglossi
PLATE XXXV.
1, 2. — Hatschekia cornigeia 3-7. — H. pygm&ea
PLATE XXXVI.
1-5 . — Hatsch ekia cornigera 6-9.— H.
Fig.
Fig.
PLATE XXXVII.
1. — Eudactylina acutci 2, 3. — E. acanthii 4, 5. — E. similis 6, 7. — E. minuta
PLATE XXXVIII.
1-5. — Eudactylina acuta 6-12. — E. acanthii
PLATE XXXIX. Fig. 1-17. — Eudactylina similis
PLATE XL. Fig. 1-9. — Eudactylina minuta
PLATE XLI.
Fig. 1. — Congericola pallida „ 2-4. — Chrondracanthus de-
pressus
,, 5. — C. zei
„ 6. — C. ornatus
PLATE XLII. Fig. 1-8. — Lernasa branchialis
PLATE XLIII. Fig. 1-7. — Lernxa branchialis
PLATE XLIV.
Fig. 1, 2. — Lernasa lusci ,, 3. — L. minuta
„ 4. — L. lumpi
,, 5-7.- — Hxmobaphes cyclo-
pterina ,, 8.- — H&mobaphoides am-
biguus
PLATE XLV.
Fig. 1. — Bebelula edwardsi
,, 2, 3. — Philichthys xipliix
,, 4, 5. — Dichelestium oblongum
,, 6. — Tripapliylus musteh
,, 7. — Chondracanthus orna- tus
„ 8. — Brachiella rostrata
PLATE XLVI.
Fig. 1-5. — Lernxenicus sprattw „ 6-9. — L. encrasicola
PLATE XLVII.
Fig. 1, 2. — Chondracanthus cor-
nutus 3. — C. anmdatus
LIST OE THE PLATES.
PLATE XLVII — continued.
Fig. 4. — Chondracanthus soleas
,, 5. — C.flurse
„ 6. — C. limandfe
,, 7. — C. clavatus
,, 8. — C. merluccii
PLATE XLVIII.
Fig. 1-3. — Lepeophtheirus thomp-
soni
„ 4, 5. — L. pollachii „ 6. — L. brevicaudatus
,, 7. — Caligus diaphanus
„ 8-12. — Lernaeopoda salmonea ,, 13—16 — Chondracanthus nodo-
sus
„ 17. — Ergasihis nanus
,, 18. — Brachiella insidiosa
PLATE XLIX.
Fig. 1-7. — Tripaphylus musteli „ 8-11.- — Thysanote impudica „ 12-16. — (?) Lernaeopoda lampri
PLATE L.
Fig. 1-5. — Lerneocera cyprinacea ,, 6-8. — Achtheres percarum „ 9. — Brachiella bispinosa
Fig.
Fig.
PLATE LI.
1. — Tripapliylus musteli 2. — Pennella orthagorisci 3, 4. — Sphyrion lumpi 5. — Bebelula edwardsi 6. — Thersitina gasterostei 7. — Glavella lophii
PLATE LII.
1-3 . — Chondracanthus nodo-
siis
4. — C. lopliii 5. — C. cornutus 6. — Medesicaste asellinum
PLATE LTII.
Fig. 1-9. — Chondracanthus cor- nutus
„ 10, 11.— C. flurte „ 12-15,— C. solex ,, 16-19. — C. merluccii
PLATE LIV.
Fig. 1-11. — Trebius caudatus ,, 12-17. — Oharopinus dalmanni ,, 18-22. — C. ramosus
PLATE LV.
Fig. 1-4. — Charopinus dalmanni ,, 5. — C. dubius
„ 6, 7. — C. ramosus
PLATE LVI.
Fig. 1-7. — Chondracanthus de-
pressus
,, 8-10. — C. annulatus ,, 11, 12. — C. limandce
13.— C. zei
,, 14, 15. — C. clavatus ,, 16-18. — C. lophii
PLATE LVII.
Fig. 1-7. — Lerneeopoda clutluv „ 8-12. — L. bidiscalis ,, 13-17.- — L. elongata ,, 18, 19. — Medesicaste asellinum
PLATE LVIII.
Fig. 1-8. — Pandarus bicolor ,, 9-15. — Lernxopoda galei 16.— L. cluthx
PLATE LIX.
Fig. 1-6. — -Lern&opoda salmonea „ 7, 8. — Achtheres percarum
PLATE LX.
Fig. 1-3. — Lernteopoda „ 4-6. — L. galei
7. — BrachieUa ovalis
LIST OP THE PLATES.
XL
PLATE LXI.
Fig. 1,2. — Lernseopoda bidis-
calis
„ 3, 4. — L. elongata 5, 6. — L. similis
PLATE LXII.
Fig. 1. — Brachiella trigla „ 2. — B. insidiosa
3. — B. rostrata 4, 5. — B. merluccii
PLATE LXIII.
Fig. 1. — Lernasopoda galei ,, 2-8. — Brachiella rostrata „ 9-16. — B. insidiosa „ 17-20. — B. merluccii „ 21-25.— B. triglfe „ 26-30.— B. ovalis
PLATE LX1V.
Fig. 1-3. — Achtheres percarum ,, 4-6. — Brachiella thynni ,, 7. — B. parkeri
8. — B. pastinaca 9. — B. bispinosa
PLATE LXV.
Fig. 1. — Clavella brevicollis 2, 3. — C. uncinata 4, 5. — C. ruyosa
„ 6. — C. (?) uncinata
,. 7. — C. dubia
8, 9.— C. stellata
LXVI.
Fig. 1-7. — Clavella rugosa „ 8-11.— C. dubia ,, 12-16. — C. brevicoliis ,, 17-20. — C. emarginata „ 21-23. — C. uncinata
PLATE LXVII.
Fig. 1-3. — Clavella scombri „ 4-6. — C. paradoxa
PLATE LXVIII.
Fig. 1-7. — Clavella scombri ,, 8-14. — C. paradoxa ,, 15. — C. quadrata
PLATE LXIX.
Fig. 1-3. — Clavella canthari ,, 4-6. — C. alata ,, 7. — C. emarginata
PLATE LXX. Fig. 1-13. — Kroyeria lineata
PLATE LXXI.
Fig. 1-12. — Eudactylina insolens „ 13. — Brachiella pastinaca, „ 14. — Caligus pelamydis
PLATE LXXII. io-. 1-10. — Argulus foliaceus
(xii)
REFERENCE LETTERS TO PLATES IV, XII-XV, XLII, AND XLIII.
a. antennules. a1, antennae. an. anus.
b. median frontal sucker.
c. filament duct. eg. cement gland. dg. digestive gland. e. eyes.
/. filament.
g. ganglia.
i. intestine.
Is. lateral frontal sucker.
Ins. lens.
m. mouth.
tud. mandible.
mx, first maxilla.
mx1. second maxilla.
mxp. first maxilliped.
mxp1. second maxilliped.
n. nerves.
o. ovary.
od. oviduct.
oe. oesophagus.
os. ovisac.
pl. first pair of feet.
p". second pair of feet.
p™. third pair of feet.
p". fourth pair of feet.
pv. fifth pair of feet.
jjvi. sixth pair of feet.
rs. receptaculum seminis.
rt. rectum.
rtn. retina.
s. stomach.
sbg. sub-oesophageal ganglion.
spg. supra-oesophageal ganglion.
sp. sperniatophore.
t. testis.
u. vulva.
vd. vas deferens.
Nos. 1-13, NERVES, AS FOLLOWS : -
1. optic.
2. antennules.
3. antennae.
4. mandibles.
5. lateral frontal margins.
6. first maxillae.
7. second maxillae.
8. lateral cephalic muscles.
9. first maxillipeds.
10. second maxillipeds.
11. first feet and stomach muscles.
12. second feet and posterior
cephalic muscles.
13. third feet, fourth feet, fifth
feet, genital abdomen.
segment, and
Plate 1
Plate 2
PLATE II.
FIGS.
1-5. Ergasilus nanus P. J. van Beneden, ? . (p. 34.)
1. Antennule.
2. Foot of first pair.
3. Foot of third pair.
4. Foot of fourth pair.
5. Abdomen.
6-9. Bomolochus solese Glaus, ? . (p. 36.)
6. Mandible.
7. First maxilliped.
8. Foot of second pair.
9. Foot of fourth pair.
(Figures much enlarged.)
•
% A -**^5
"< *•'
Plate 3
PLATE III.
FIGS.
1-4. Bomolochus solese Glaus, ? . (p. 36.)
1. Antennule.
2. Maxilla.
3. Second maxilliped.
4. Foot of first pair.
5-7. Bomolochus onosi T. Scott, (p. 39.)
5. Antennule, ? .
6. Second maxilliped, ? .
7. Second maxilliped, £ .
8, 9. Bomolochus zeugopteri T. Scott, $ . (p. 40.)
8. Antennule.
9. Second maxilliped.
(Figures much enlarged.)
PLATE III
Plate 4
Ij
PLATE IV.
FIGS.
1, 2. C aligns minimus Otto. (p. 46.)
1. Dorsal view, ? , x 11.
2. Dorsal view, <£, x 11.
3-8. Caligus rapax M. Edwards, (p. 48.)
3. Early " chalimus " stage attached to fin-ray of a
young cod, x 54.
4. Late " chalimus " stage attached to tail of a young
lumpsucker, x 15.
5. Mature part of a frontal plate, shewing lateral
sucker (lunula).
6. Sternal fork, ? .
7. Second maxilliped, ? .
8. Foot of fourth pair, ? .
(Figures 5-8 much enlarged.)
PLATE IV
Plate 5
PLATE V.
Fios.
1—3. Caligus centrodonti Baird. (p. 50.)
1. Dorsal view, ? . (After C. B. Wilson.)
2. Dorsal view, <?, x 16.
3. Dorsal view of a young individual, £ , x 16. 4, 5. Caligus Idbracis T. Scott, (p. 53.)
4. Dorsal view, ? , x 21.
5. Dorsal view, $ , x 21.
PLATE V
Plate 6
J
PLATE VI.
FIGS.
1, 2. Caligus rapax M. Edwards, (p. 48.)
1. Dorsal view, ? , x 13.
2. Dorsal view, <$ , x 13.
3. Caligus brevicaudatus A. Scott, (p. 56.)
3. Dorsal view, ? , x 16.
4, 5. LepeopJitheirus hippoglossi (Kroyer). (p. 67.)
4. Dorsal view, ? , x 5.
5. Dorsal view, £ , x 7*5.
PLATE VI
Plate 7
PLATE VII.
FIGS.
1. C aligns zei Norman & T. Scott, (p. 54.)
1. Dorsal view, ? , x 11.
2, 3. C aligns pelamydis Kroyer. (p. 57.)
2. Dorsal view, ? , x 22*5
3. Sternal fork, $ (enlarged).
PLATL VII
Plate 8
PLATE VIII.
FIGS. 1; 2. Caligus gurnardi Kroyer. (p. 52.)
1. Dorsal view, $ , x 8. (After Kroyer.)
2. Dorsal view, ? , x 8. (After Kroyer.) 3-9. Caligus zei Norman & T. Scott, ? . (p. 54.)
3. Antennule.
4. Antenna.
5. Sternal fork.
6. First maxilliped.
7. Second maxilliped.
8. Foot of fourth pair.
9. Urosome, <$ .
0, 11. Caligus brevicaudatus A. Scott, ? . (p. 56.)
10. Second maxilliped, ? .
11. Foot of fourth pair, ? .
(Figures 3-11 much enlarged.)
PLATE VIII
Plate 9
PLATE IX.
FIGS.
1-5. Caligus pelamydis Kroyer, ? . (p. 57.)
1. Aiitemmle.
2. Antenna.
3. First maxilliped.
4. Second maxilliped.
5. Foot of fourth pair.
6-9. Pseudocaligus brevipedes (Bassett-Smith). (p. 61.)
6. Sternal fork, ? .
7. Sternal fork, $ .
8. Second maxilliped, ? .
9. Foot of fourth pair, ? .
( Figures much enlarged.)
PLATE IX
Plate 10
PLATE X.
FIGS.
1,2. Pseudocaligus brevipedes (Bassett-Smith). (p. 61.)
1. Dorsal view, ? , x 22.
2. Dorsal view, $ , x 22.
3,4. Lepeophtheirus pectoralis (0. F. Miiller). (p. 64.)
3. Dorsal view, ? , x 17.
4. Dorsal view, ^ , x 17.
PLATE X
Plate 11
PLATE XI.
FIGS.
1-6. Scisenophilus tennis P. J. van Beneden, ? . (p. 63.)
1. Dorsal view (natural size).
2. Dorsal view (enlarged).
3. Dorsal view (cephalothorax only).
4. Ventral view (cephalothorax, right half only).
5. Mandible.
6. Caudal rami.
(After P. J. van Beneden.)
PLATE XI
Plate 12
PLATE XII.
FIGS.
1. Lepeophtheirus nordmanni (M. Edwards), (p. 66.)
1. Dorsal view, ? , x 9.
2,3. LepeopJitJieirus pectoralis (0. F. Miiller). (p. 64.)
2. Newly hatched nauplius, x 52.
3. " Chalimas " stage, x 26.
4,5. Demoleus paradoxus (Otto), (p. 79.)
4. Ventral view, $ . (After Otto.)
5. Ventral view, <$ . (After Otto.)
(Figures 4 and 5 enlarged.)
PLATE XII
Plate 13
PLATE XIII.
FIGS.
1-4. Lepeophtheirus pecioralis (0. P. Miiller), ?. (pp. 9-18 and 64.)
1. Ventral view, shewing the various appendages and
their muscles, x 17.
2. Dorsal view, shewing the dorsal muscles, x 17.
3. Ventral view, shewing the alimentary canal and
digestive glands, x 17.
4. Ventral view, shewing the nervous system in situ,
x 17.
PLATE XIII
-a.
Plate 14
PLATE XIV.
FIGS.
1-10. Lepeophtheirus pectoralis (0. F. Miiller). (pp. 9-18 and 64.)
1. Ventral view, shewing the reproductive organs,
?, x 17.
2. Genital segment and abdomen, ? , immature.
3. Ventral view, shewing the reproductive organs,
<?, x 17.
4. Longitudinal section of the ovary.
5. Transverse section through genital segment, ? ,
mature.
6. Transverse section through genital segment, £ ,
mature.
7. Left anterior digestive gland.
8. Month from the anterior surface, shewing the
mandibles in situ, and the ducts from the right and left anterior digestive glands.
9. Spermatophores detached from the genital
openings of a female.
10. Median longitudinal section of the ganglia, shew- ing the "pinhole" oasophagus passing through between the supra- and sub-cesophageal parts.
(Figures much enlarged.)
PI.ATL XIV
8
Plate 15
PLATE XV.
FIGS.
1-9. Lepeophtheirus pectoralis (O. F. Miiller), ? . (pp. 9-18 and 46.)
1. Nearly median longitudinal section.
2. Part of transverse section of the intestine.
3. Horizontal section of the supra-cesophageal gan-
glion, shewing the crossing of the fibres of the optic nerves.
4. Transverse section of the eyes.
5. One of the antennules, shewing the nerve endings.
6. Transverse section in the region of the supra- and
sub-cesophageal ganglia.
7. Transverse section in the region of the- eyes.
8. Transverse section in the region of the second
maxillipecls.
9. The nervous system from the ventral aspect.
(Figures much enlarged.)
Plate 16
PLATE XVI.
FIGS. 1-3. Lepeophtheirus pectoralis (0. F. Miiller), ? . (p. 64.)
1. Sternal fork.
2. Second maxilliped.
3. Foot of fourth pair.
4-11. Lepeophtheirus nordmanni (M. Edwards), ? & <$ . (p. 66.)
4. <J Dorsal view. (This figure after C. B. Wilson.)
5. ? Antenna.
6. ? Sternal fork.
7. $ Second rnaxilliped.
8. ? Foot of fourth pair.
9. $ Sternal fork.
10. ? Second maxilliped.
11. ? Foot of fourth pair.
(The last three figures are from a second specimen.)
PLATE XVI
\
Plate 17
PLATE XVIL
FIGS,
1. C aligns diaphanus Xordinann. (p. 60.)
1. Dorsal view, $ , x 13.
2. Lepeoplitlieirus Jiippoglossi (Kroyer). (p. 67.)
2. Dorsal view, ? immature.
3. Lepeoplitlieirus thompsoni Baird. (p. 69.)
3. Dorsal view, $ , x 8 '75.
4. Lepeoplitlteirus salrnonis (Kroyer). (p. 71.)
4. Dorsal view, $ } x 4.
5,6. Lepeoplitlieirus pollacliii Bassett-Smith. (p. 73.)
5. Dorsal view, $ , x 10.
6. Dorsal view, £ , x 13.
PLATE XY1I
Plate 18
PLATE XVIII.
FIGS. l-o. C aligns ceutroJnnti Baird, ? . (p. 50.)
1. Sternal fork.
2. Second maxilliped.
3. Foot of fourth pair.
4, 5. CciUc/u* labmci* T. Scott, ? . (p. 53.)
4. Sternal fork.
5. Foot of fourth pair.
6, 7. Caligus diapTianus Nordmann, ? . (p. 60.)
6. Second maxilliped.
7. Foot of fourth pair.
8-10. Lepeoplitlieirus hippoglossi (Kroyer), ? . (p. 67.)
8. Sternal fork.
9. First maxilliped.
10. Second maxilliped.
11, 12. Lepeophtheirns salmonis (Kroyer), ?• (p. 71.)
11. Sternal fork.
12. Foot of fourth pair.
13-15. Lepeoplitlieirus pollachii Bassett-Smith. ?. (p. 73.)
13. First maxilliped.
14. Second maxilliped.
15. Foot of fourth pair.
16-19. Lepeoplitlteirns sturionis (Kroyer), ? . (p. 74.)
16. Sternal fork.
17. Second maxilliped.
18. Foot of fourth pair.
19. Furcal joints.
(Figures much enlarged.)
PLATE XVIII
Plate 19
PLATE XIX.
FIGS.
1-9. Liifkenia asterodermi Glaus, $ . (p. 76.)
1. Antennule.
2. Antenna.
3. First maxilliped.
4. Second maxilliped.
5. Foot of first pair.
6. Foot of second pair.
7. Foot of third pair.
8. Foot of fourth pair.
9. Abdomen and furcal joints.
10. Elytrophora bracliyptera Gerstaecker. (p. 83.)
10. Foot of second pair, ? .
11-18. Phyllothreus cornutus (M. Edwards), ? . (p. 92.)
11. Antennule.
12. Antenna.
13. First maxilliped.
14. Second maxilliped.
15. Foot of first pair.
16. Foot of second pair.
17. Foot of third pair.
18. Foot of fourth pair.
(Figures much enlarged.)
PLATE XIX
Plate 20
PLATE XX.
FIGS.
1-8. Nogaus ambiguus T. Scott, <$ . (p. 78.)
1. Dorsal view, x 13.
2. Antemmle.
3. First maxilliped.
4. Second maxilliped.
5. Foot of first pair.
6. Foot of second pair.
7. Foot of third pair.
8. Foot of fourth pair.
9. Chondr acanthus annulatus Olsson. (p. 169.)
9. Lateral view, <$ , x 50.
10. Chondracanthus merluccii (Holten). (p. 180.) 10. Lateral view, £ , x 115.
(Figures 2-8 much enlarged.)
PLATE XX
Plate 21
PLATE XXI.
FIGS.
1. Lepeophtheirus sturionis (Kroyer). (p. 74.)
1. Dorsal view, ?, x 6'6.
2. Pandarus bicolor Leach, (p. 95.)
2. Dorsal view, $ (juv.) =Nogagus latus T. Scott, x 15. 3, 4. Cecrops latreillii Leach, (p. 98.)
3. Dorsal view, ? , x 2.
4. Dorsal view, J , x 2.
5. Orthagoriscicola muricata (Kroyer). (p. 100.)
5. Dorsal view, ? , x 2'5.
PLATE XXI
\
Plate 22
PLATE XXII.
FIGS.
1, 2. Trebiuf! caudatus Kroyer. (p. 81.)
1. Dorsal view, ?, x 6'6.
2. Dorsal view, <$ , x 15.
3. Dinemoura producta (0. F. Miiller). (p. 86.)
o. Dorsal view, ? , x 3'3.
4. Echtlirogaleus colwpiratus (Guerin). (p. 89.)
4. Dorsal view, ? , x 4.
5, 6. Pandarus bicolor Leach, (p. 95.)
5. Dorsal view, ? , x 5.
6. Dorsal view, ^ , x 10.
PLATE XXII
6
Plate 23
PLATE XXIII.
FIGS.
1, 2. Elytrophora brachyptera Gerstaecker. (p. 83.)
1. Dorsal view, ? , x 8.
2. Dorsal view, <$ , x 8.
3. Phyllothreus cornutus (M. Edwards), (p. 92.)
3. Dorsal view, ? , x 4'5.
4. Liitkenia asterodermi Clans, (p. 76.)
4. Dorsal view, ? (enlai'ged).
5,6. Anthosoma crassum (Abildgaard). (p. 108.)
5. Dorsal view, ? , x 3.
6. Ventral view, ? , x 3.
PLATE XXI 1 1
4
6
Plate 24
PLATE XXIV.
FIGS.
1, 2. C aligns curtus 0. F. Miiller. (p. 45.)
1. Dorsal view, ? , x 8.
2. Dorsal view, $ , x 6'5.
•3, 4. Philorthragoriscus serratus (Kroyer). (p. 104.)
3. Dorsal view, ?, x 12-5.
4. Dorsal view, $ , x 20.
PLATE XXIV
Plate 25
PLATE XXV.
FIGS.
1-6. Thersitina gasterostei (Pagenstecher), ? . (p. 42.)
1. Ante mini e.
2. Antenna.
3. Second maxilliped.
4. Foot of first pair.
5. Foot of fourth pair.
6. Abdomen and furcal joints.
7-9. Galiyus curtus 0. F. Miiller, ? . (p. 45.)
7. Sternal fork.
8. Second maxilliped.
9. Foot of fourth pair.
10. Lepeophtheirus thompsoni Baird. (p. 69.)
10. Sternal fork, ? .
11-16. C aligns minimus Otto, ? & $ (p. 46.)
11. Antennule, $ .
12. Sternal fork, $ .
13. Sternal fork, $.
14. Second maxilliped, $ .
15. Foot of fourth pair, ¥.
16. Second maxilliped, $ .
(Figures much enlarged.)
PLATE XXV
li
16
Plate '2(3
PLATE XXVI.
FIGS. 1-3. Dinemoura producta (0. F. Miiller), ? . (p. 86.)
1. Foot of second pair.
2. Foot of fourth pair.
3. Fifth foot.
4-19. Pandarus bicolor Leach, ? & <$ . (p. 95.)
4. $ Antennule.
5. Antenna.
6. Maxilla.
7. First maxilliped.
8. Second maxilliped.
9. Foot of first pair.
10. Foot of second pair.
1 1 . Foot of third pair.
12. Foot of fourth pair.
13. J Antennule.
14. Antenna.
15. Maxilla.
16. First maxilliped.
17. Second maxilliped.
18. Foot of first pair.
19. Foot of second pair.
(Figures much enlarged.)
PLATE XXVI
, \Vy\ r I .. j |
Plate 27
PLATE XXVII.
FIGS. 1-8. Dinemoura producta (0. F. Miiller), ? . (p. 86.)
1. Antenmile.
2. Antenna.
3. Mandible.
4. Maxilla.
5. First maxilliped.
6. Second maxilliped.
7. Foot of first pair.
8. Foot of third pair.
9, 10. Cecropslatreilliil^e&ch, $. (p. 98.)
9. Antenna.
10. First maxilliped.
11-24. Philorthragoriscus serratus (Kroyer), ? & $ . (p. 104.)
11. ? Autennule.
12. Antenna.
13. Mandible.
14. Maxilla.
15. First maxilliped.
16. Second maxilliped.
17. Foot of first pair.
18. Foot of third pair.
19. Foot of fourth pair.
20. Abdomen and furcal joints.
21. (J Antenna.
22. Maxilla.
23. Second maxilliped.
24. Foot of second pair.
(Figures much enlarged.)
PLATE XXVII
Plate 28
PLATE XXVIII.
FIGS. 1-7. Cecrops latreillii Leach, ? . (p. 98.)
1. Anteniiule.
2. Second maxilliped.
3. Foot of first pair.
4. Foot of second pair.
5. Foot of third pair.
6. Foot of fourth pair.
7. Fifth foot.
8-18. Orthagoriscola muricata (Kroyer), ?. (p. 100.)
8. Antennule.
9. Antenna.
10. Mandible.
11. Maxilla.
12. First maxilliped.
13. Second maxilliped.
14. Foot of first pair.
15. Foot of second pair.
16. Foot of third pair.
17. Foot of fourth pair.
18. Fifth foot.
( Figures much enlarged.)
PLATE XXVIII
Plate 29
PLATE XXIX.
FIGS.
1. Echthrogaleus liitkeni (Norman), (p. 90.)
1. Dorsal view, $ (enlarged).
2-5. Lernanthropus kroyeri P. J. van Beneden. (p. 110.)
2. Dorsal view,, $, x 13'4.
3. Abdomen and furcal joints, ? (much enlarged).
4. Dorsal view, $ , x 13-4.
5. Abdomen and furcal joints, $ (much enlarged).
PLATE XXIX
Plate 30
PLATE XXX.
FIGS. 1-8. Echthrogaleus liitkeni (Norman), £ . (p. 90.)
1. Antennule.
2. Antenna.
3. First maxilliped.
4. Second maxilliped.
5. Foot of first pair.
6. Foot of second pair.
7. Foot of third pair.
8. Foot of fourth pair.
9-17. Lernanthropus kroyeriP. •J.yan'Bened.en, ?. (p. 110.)
9. Antennule with secondary process.
10. Antenna.
11. Mandible.
12. Maxilla.
13. First maxilliped.
14. Second maxilliped.
15. Foot of first pair.
16. Foot of second pair.
17. Outer ramus of second foot, <$ .
(Figures much enlarged.)
PLATE XXX
Plate 31
PLATE XXXI.
FIGS. 1-6. Elytrophora brachyptera G-erstaecker, ? . (p. 83.)
1. Antenna.
2. First maxilliped.
3. Second maxilliped.
4. Foot of first pair.
5. Foot of fourth pair.
6. Antenna, $ .
7-18. Dichelestium oblong urn (Abildgaard), ? & $ . (p. 106.)
7. ? Antennule.
8. Antenna.
9. Mandible.
10. Maxilla.
11. First maxilliped.
12. Second maxilliped.
1 3. Foot of first pair.
14. Foot of second pair.
15. Foot of fourth pair.
16. $ Antenna.
17. Foot of second pair.
18. Foot of fourth pair.
(Figures much enlarged.)
PLATE XXXI
Plate 32
PLATE XXXII.
FIGS.
1—11. Hatschekia mulli (P. J. van Beneden), ?. (p. 114.)
1. Adult female, dorsal view, x 24'5.
2. Lateral view of head and thorax, adult x 36.
3. Dorsal view, juv., x 36.
4. Antennule.
5. Antenna.
6. Spiniform process at base of antenna.
7. Mandible.
8. Maxilla.
9. Maxilliped.
10. Foot of first pair.
11. Foot of second pair.
(Figures 4-11 much enlarged.)
PLATE XXXII
Plate 33
PLATE XXXIII.
FIGS.
1. Hatschekia chithss (T. Scott), (p. 117.)
1. Dorsal view, ?, x 58.
2. Hatschekia labracis (P. J. van Beneden). (p. 115.)
2. Dorsal view, ? , x 28.
3,4. Hatschekia hippoglossi (Kroyer). (p. 112.)
3. Dorsal view, ? , x 7.
4. Dorsal view, 3~ , x 34.
5. Thysanote impudica (Nordmami). (p. 187.)
5. Dorsal view, ? , x 10.
6. ? Lernzeopoda lampri sp. nov. (p. 202.)
(3. Lateral view, <$ , x 14.
PLATE XXXI II
v
\ 2
6
Plate 34
PLATE XXXIV.
FIGS.
1-5. Hatichekia clutlise (T. Scott), ?. (p. 117.)
1. Antennule.
2. Antenna.
3. Maxilla.
4. Second maxilliped.
5. Foot of first pair.
6. 7. Hatschekia labmcis (P. J. van Beneden), ? . (p. 115.)
6. Antennule.
7. Antenna.
— 11. Hatschekia hippoglossi (Kroyer), $. (p. 112.)
8. Antennule.
9. Mandible.
10. Second maxilliped.
11. Foot of first pair.
(Figures much enlarged.)
X
,'
Plate 35
PLATE
FIGS.
1,2. Hatschekia cornigera T. Scott, ?. (p. 118.)
1. Dorsal view, x 40.
2. Lateral view of head and thorax, x 80. 3-7. Hatschekia pygmsea T. Scott, ?. (p. 119.)
3. Dorsal view, x 45.
4. Maxilliped.
5. Foot of first pair.
6. Foot of second pair.
7. Abdomen and furcal joints.
(Figures 4-7 much enlarged.)
PLATE XXXV
\
7
Plate 36
PLATE XXXVI.
FIGS.
1-5. Hatschekia cornigera T. Scott, ? . (p. 118.)
1. Antennule.
2. Antenna.
3. Maxilliped.
4. Foot of first pair.
5. Foot of second pair.
6-9. Hatschekia pygmtea T. Scott, ?. (p. 119.)
6. Antennule.
7. Antenna.
8. Mandible.
9. Maxilla.
(Figures much enlarged.)
PLATE XXXVI
Plate 37
PLATE XXXVII.
FIGS.
1. Eudactylina acuta P. J. van Beneden. (p. 126.)
1. Dorsal view, ? , x 41.
2, 3. Eudactylina acantltii A. Scott, (p. 128.)
2. Dorsal view, ? , x 41.
3. Lateral view, ? , x 41.
4, 5. Eudactylina similis T. Scott, (p. 130.)
4. Lateral view, ? , x 34.
5. Lateral view, £ , x 34.
6, 7. Eudactylina minuta T. Scott, (p. 133.)
6. Dorsal view, ? , x 40.
7. Lateral view, ? , x 40.
PLATE XXXV II
Plate 38
PLATK XXXVIII.
FIGS. 1-5. Eudactylina acuta P. J. van Beneden, ? . (p. 126.)
1. Antennule.
2. Foot of first pair.
3. Foot of second pair.
4. Foot of fifth pair.
5. Part of abdomen, and furcal joints. 6-12. Eudactylina acanthii A. Scott, ? . (p. 128.)
6. Antennule.
7. Antenna.
8. Foot of first pair.
9. Foot of second pair.
10. Foot of fourth pair.
11. Foot of fifth pair.
12. Part of abdomen, and furcal joints.
( Figures much enlarged.)
PLATE XXXVIII
Plate 39
PLATE XXXIX.
FIGS.
1-17. Eudactylina similis T. Scott, ? & $ . (p. 130.)
1. ? Antennule.
2. Antenna.
3. Mandible.
4. Maxilla.
5. First maxilliped.
6. Second maxilliped.
7. Foot of first pair.
8. Foot of second pair.
9. Foot of fourth pair.
10. Foot of fifth pair.
11. Part of abdomen, and furcal joints.
12. c? Antennule.
13. Second maxilliped.
14. Foot of first pair.
15. Foot of second pair.
16. Foot of fourth pair.
17. Part of abdomen, and furcal joints.
(Figures much enlarged.)
PLATE XXXIX
Plate 40
PLATE XL.
FIGS.
1—9. Eudactylina minuta T. Scott, ? . (p. 133.)
1. Antennule.
2. Antenna.
3. First maxilliped.
4. Second maxilliped.
5. Foot of first pair.
6. Foot of second pair.
7. Foot of fourth pair.
8. Foot of fifth pair.
9. Part of abdomen, and furcal joints.
(Figures much enlarged.)
PLATE XL
Plate 41
PLATE XLI.
FIGS.
1. Congericola pallida P. J. van Beneden, ? dorsal view,
x 17. (p. 124.) 2-4. Chondracanthus depressus T. Scott, (p. 172.)
2. ? Dorsal view, x 12.
3. Posterior end of body in dorsal view, x 12.
4. Var. oblongus, ? dorsal view, x 12. (p. 173.)
5. Chondracanthus zei De la Roche, ? dorsal view, x 5.
(p. 177.)
~T 6. Chondracanthus ornatus T. Scott, ? doi-sal view, x 10. (p. 182.)
PLATE XLI
***\
Plate 42
PLATE XLII.
FIGS.
1—8. Lernsea branchialis Linn. (p. 142.)
1. Mature female, side view, x 4.
2. Newly hatched iiauplius x 51. (p. 21.)
3. Very young- female, unfertilized, dorsal view, x
(p. 21.)
4. Fertilized female, after leaving- the gills of a flounder,
dorsal view x 27 i. (p. 21.)
5. Mature male, dorsal view, x 28i. (p. 21.)
6. Fertilized female, ' Pemiella stage/ just after attach-
ment to the gills of a whiting, dorsal view, x 15 i. (p. 23.)
6a. A later stage than fig. 6; the folding has just been completed; side view, natural size. (p. 23.)
7. Apex of the gill-ray of a flounder, normal, x 18.
(p. 22.)
8. Apex of the gill-ray of a flounder, shewing mal-
formation caused by the young Lemma, x 18. (p. 22.)
PLATE XLII
Plate 43
PLATE XLIII.
FIGS.
1-7. Lernsea br.anchialis Linn. (p. 142.)
1. Fertilized female, ventral view,, shewing the appen-
dages, the reproductive organs, and the nervous system, x 47i. (p. 22.)
2. Mature female, seen from the right side, shewing
the maxilliped and four pairs of feet, the alimen- tary canal, and the reproductive organs; from a specimen cleared in xylol, x 4. (p. 19.)
3. Transverse section through the middle of the swollen
region, shewing the ovary, the oviducts, cement glands, and intestine, x 9. (p. 21.)
4. Transverse section through the abdomen, x 20.
(p. 22.)
5. Portion of the cement-gland, x 20. (p. 21.)
6. Transverse section through the region of the eyes
of a young fertilized female, x 80. (p. 22.)
7. Front view of the anchor processes of an adult
female, x 4. (p. 22.)
PLATE XLIII
ol .
Plate 44
PLATE XLIV.
FIGS.
1. Lemma lusci Bassett-Smith, $ side view, x 6. (p. 144.)
2. Another specimen ( $ ) in situ on gill-arch of fish, x
about 2.
3. Lernsea minuta, T. Scott, ? side view, x about 5.
(p. 145.)
4. Lernsea lumpi, T. Scott, ? side view, x about 2. (p. 146.) 5-7. Htemobaphes cyclopterina (Fabr.). (p. 147).
5. Side view (head wanting), x 9.
6. The head, after Steenstrup & Liitken, enlarged.
7. The same, seen from another position, enlarged.
8. H-Eemobaphoides amljiguus T. Scott, ? side view, x 7. (p. 148.)
PLATE XLIV
Plate 45
PLATE XLY.
FIGS.
1. Rebelula nlinn-dsi- (Kolliker), ? dorsal view, enlarged.
(p. 162.) 2,3. Pliilichthys xiphife Steenstrup, $. (p. 139.)
2. A young specimen, dorsal view, enlarged.
3. An older specimen, dorsal view, enlarged. 4, 5. Dichelestium oblongum (Abildgaard). (p. 106.)
4. Dorsal view., 9, x about 4.
5. Dorsal view, $ , x about 4.
6. Tripaphylus mnsteli P. J. van Beneden, $ side view,
enlarged, (p. 160.)
7. Chondr acanthus ornatus T. Scott, $ side view, greatly
enlarged, (p. 182.)
8. Brachiella rosirata Kr()ver, £ side view, x about 25.
(p. 205.)
PLATE XLV
Plate 46
PLATE XL VI.
FIGS.
1-5. Leru&enicus sprattss (Sowerby). (p. 156.)
1. Female in situ in eye of sprat, natural size.
2. Female removed from fish, x about 2£.
3. Plead and neck of female, more enlarged.
4. Antennule, greatly enlarged.
5. Antenna, greatly enlarged.
6-9. Lernseenicus encrassicola (Turton). (p. 158.)
6. Female in situ in back of sprat,, natural size.
7. Shows head of female penetrating into the abdominal
cavity of the sprat, enlarged.
8. Head of female, ventral view, enlarged.
9. Head, side view, enlarged.
PLATE XLVI
Plate 47
PLATE XLVII.
FIGS.
1. Chondracanthus cornutus (0. F. Miiller), ?, x about 6.
(p. 168.)
2. Chondracanthus cornutus, var. ? , x 6. (p. 169.)
3. Chondracanthus annulatus Olsson, ?, x 4. (p. 169.)
4. Chondracanthus solese, Kroyer, ?, x 7. (p. 170.)
5. Chondracanthus flurse Kroyer, ?, x 6. (p. 171.)
6. Chondracanthus limandte Kroyer, ?, x 13. (p. 174.)
7. Chondracanthus clavatus Bassett- Smith, ?, x 8. (p. 175.)
8. Chondracanthus merluccii (Holten), ? , x 8. (p. 180.)
PLATE XLVTI
M
Plate 48
PLATE XLVIII.
FIGS. 1-3. Lepeophtlieirttff tliompsoni Baird, ?. (p. 69.)
1. Sternal fork.
2. Sternal fork, another form.
3. Foot of fourth pair.
4, 5. Lepeophtheirus pollachii Bassett-Smith, ? . (p. 73.)
4. Sternal fork.
5. First maxilliped.
6. Caligus brevicaudatus A. Scott, ?. Sternal fork.
(p. 56.)
7. Caligus diaphanus Nordmann, ?. Sternal fork.
(p. 60.) 8-12. Leriiceopoda salmonea (Linn.), 5. (p. 199.)
8. Antemmle.
9. Antenna.
10. Mandible.
11. Maxilla.
12. First maxilliped.
13-16. Glioiidracanthus nodosus (0. F. Miiller), ?. (p. 176.)
13. Antennuie.
14. Mandible and maxilla.
15. Foot of first pair.
16. Foot of second pair.
17. Eryasilus nanus P. J. van Beneden, ? . Antenna.
. (P- 34-}.
18. Brachiella insidiosa Heller, adult male, side view,
x 18. (p. 206.) (Figs. 1-17 much enlarged.)
PLATE XLVIII
Plate 49
PLATE XLIX.
FIGS. 1-7. Tripaphylus musteli (P. J. van Beneden), <?. (p. 160.)
1. Antennule.
2. Antenna.
3. Mandible.
4. Maxilla.
5. First maxilliped.
6. Second maxilliped.
7. Abdomen.
8-11. Thysanote impudica (Nordmann), ?. (p. 187.)
8. Antennule.
9. Mandible.
10. Maxilla.
11. First maxilliped.
12-16. (?) Lernfeopoda lampri sp. n., $ . (p. 202.)
12. Antenna.
13. Mandible.
14. Maxilla.
15. First maxilliped.
16. Second maxilliped.
(Figures much enlarged.)
PLATE XLIX
Plate 50
PLATE L.
FIGS.
1-5. Lerneocera cyprinacea (Linn.), ?. (p. 154.)
1. A specimen seen from the side, x 9.
2. The head, front view.
3. The head, seen from another position, more enlarged
than fig. 2.
4. A specimen of L. cyprinacea, x 5. (After Selago.)
5. Another specimen, x about 3. (After Baird.) 6-8. AcMheres percctrum Nordmann. (p. 193.)
6. A female, dorsal view, x 18.
7. Distal extremity of second maxillipeds, enlarged.
8. A male, dorsal view, x 85.
9. Brachiella bispinosa Nordmann, ? dorsal view, x 7. (p. 211.)
(Figs. 1-3 and 6-9 after Nordmann.)
PI. ATM L
Plate 51
PLATE LI.
FIGS.
1. Tripaphylus miisteli (P. J. van Beneden), 2, x 2| (head
wanting), (p. 160.)
2. Feniiella orfhagorisci E. P. Wright, ?, about natural size
(head wanting), (p. 150.) (Thomas Edward's specimen.)
3. Sphyrwn lumpi (Kroyer), ?, x aboilt 2. (p. 164.)
4. A smaller specimen, rather imperfect, x about 4.
5. Rebelida edu-ardsi (Kolliker), ?, x about 2 (head
wanting), (p. 162.)
6. Thersitina yasterostei (Pagenstecher), ?, x 27. (p. 42.)
7. Clavella lophii (M. Edwards), ? , x 2. (p. 226.)
(All the figures shew dorsal view.)
PLATE LI
Plate 52
PLATE LI I.
FIGS.
1-3. Chondracanthus nodosus (0. F. Miiller). (p. 176.)
1. Adult female, dorsal view, x 8^.
2. A young' specimen, dorsal view, x about 9.
3. An adult male, side view, x 80.
4. Chondracanthus lophii Johnston, ?, x above 5. (p. 179.)
5. Chondracanthus cornutiis (0. F. Miiller), $ , side view,
x about 100. (p. 168.)
6. Medesicaste asellinum (Linn.), ? dorsal view, x 7i.
(p. 184.)
PLATE LII
6
Plate 53
PLATE LIII.
FIGS.
1-4. Chondracanthus cornutus (0. F. Miiller), ? & J. (p. 168.)
1. ? Antennule.
2. Mandible.
3. J1 Foot of first pair.
4. Foot of second pair.
5-9. Chondracanthus cornutus, var., ? & c? . (p. 169.)
5. ? Antennule.
6. Mandible.
7. J Antennule.
8. Foot of first pair.
9. Foot of second pair.
10,11. Chondracanthus fluras Kroyer, ?. (p. 171.)
10. Antennule.
11. Mandible.
12-15. CJiondracantJtus solese Kroyer, ? & J . (p. 170.)
12. ? Antennule.
13. Mandible.
14. cT Antennule.
15. Foot of second pair.
16-19. Chondracanthus merluccii (Holten), ? & $. (p. 180.)
16. ? Antennule.
17. Mandible.
18. $ Foot of first pair.
19. Foot of second pair.
(Figures much enlarged.)
PLATE LI II
Plate 54
PLATE LIV.
FIGS. 1-11. Trebius caudatus Kroyer, ?. (p. 81.)
1. Antemiule.
2. Antenna.
3. Mandible.
4. Maxilla.
5. Sternal fork.
6. First maxilliped.
7. Second maxilliped.
8. Foot of first pair.
9. Foot of second pair.
10. Foot of fourth pair.
11. Fifth foot.
12-17. Gharopinus dalmanni (Retzius), V & c?. (p. 189.)
12. ? Antennule.
13. Antenna.
14. Mandible.
15. Maxilla,
16. First maxilliped.
17. c? Second maxilliped.
18-22. Charopinus ramosus Kroyer , ?. (p. 191.)
18. Antennule.
19. Antenna.
20. Mandible.
21. Maxilla,
22. First maxilliped.
(Figures much enlarged.)
PLATE LIV
Plate 55
PLATE LV.
FIGS.
1-4. Charopinus dalmanni (Retzius). (p. 189.)
1. Female, dorsal view, x 2.
2. Female, side view, x 2.
3. Ends of the second uiaxillipeds, slightly enlarged.
4. Male, side view, x 36.
5. Charopinus dubius T. Scott, 2, dorsal view, x 3
(p. 190.) 6,7. Charopinus ramosus Kroyer, 5. (p. 191.)
6. Dorsal view, x 4.
7. Side view, x 4.
PLATE LV
Plate 56
PLATE LVI.
FIGS.
1-4. Chandrae anthill depressus T. Scott, V . (p. 172.)
1. Anteimule.
2. Mandible.
3. Foot of first pair.
4. Foot of second pair.
5—7. Chondracanthus depressus, var. oblongns, ?. (p. 173.)
5. Antennule.
6. Foot of first pair.
7. Foot of second pair.
8-10. Chondracanthus annulatus Olsson, ? & <$ . (p. 169.)
8. $ Antennule.
9. Mandible.
10. c? Antennule.
11,12. Chondracanthus limandse Kroyer, ?. (p. 174.)
11. Antennule.
12. Mandible.
13. Chondracanthus zei De la Roche, ? . Antennule.
(p. 177.) 14,15. Chondracanthus claratns Bassett-Smith, ?. (p. 175.)
14. Antennule.
15. Mandible.
16-18. Chondracanthus lophii Johnston, ?. (p. 179.)
16. Antennule.
17. Mandible.
18. Maxilla,
( Figures much enlarged.)
PLATE LV1
Plate 57
PLATE LVII.
FIGS. 1-7. L&rnseopoda cluthse T. Scott, ? & <?. (p. 198.)
1. ¥ Antenuule.
2. Antenna.
3. Mandible.
4. Maxilla.
5. First maxilliped.
6. $ First maxilliped.
7. Second maxilliped.
8-12. Lernseopoda Udiscalis ~W. F. de Visme Kane, (p. 200.)
8. Anteiinule.
9. Antenna.
10. Mandible.
11. Maxilla.
12. First maxilliped.
13-17. Lernseopoda elongata (Grant), ?. (p. 195.)
13. Antennule.
14. Antenna.
15. Mandible.
16. Maxilla.
17. First maxilliped.
18,19. Medesicaste usellinum (Linn.), ?. (p. 184.)
18. Antennule.
19. Mandible.
(Figures much enlarged.)
o
PLATE LVI1
Plate 58
PLATE LVIIL
FIGS.
1-8. Pandarus bicolor Leach, <$ (juv.), (= Nogagus latus T.Scott), (p. 95.)
1. Antennule.
2. Antenna.
3. First maxilliped.
4. Second maxilliped.
5. Foot of first pair.
6. Foot of second pair.
7. Foot of third pair.
8. Foot of fourth pair.
9-15. Lernseopoda galei Kroyer, ? <& <J . (p. 197.)
9. ? Antennule.
10. Antenna.
11. Mandible.
12. Maxilla.
13. First maxilliped.
14. Second maxilliped.
15. $ Second maxilliped.
16. Lernseopoda chithx T. Scott, $ . (p. 198.)
16. Abdomen and caudal furca.
(Figures much enlarged.)
PLATE LVII1
Plate 59
PLATE LIX.
FIGS.
1-6. Lernseopoda salmonea (Linn.), (p. 199.)
1. Female, dorsal view, x 12.
2. The same, side view, x 12.
3. Another specimen, ? adult, dorsal view, x 8 (to
shew variation) .
4. The same, seen from the side, x 8.
5. A female, somewhat immature, dorsal view, en-
larged.
6. The same, seen from the side, enlarged. 7, 8. Achtheres percarum Nordmami, ? . (p. 193.)
7. Dorsal view, much enlarged.
8. The same, seen from the side.
PLATE LIX
II
^
Lr
m
VH5? RM5S
$ mm
Plate 60
PLATE LX.
FIGS.
1-3. Lernseopoda cluthse T. Scott, (p. 198.)
1. Female, dorsal view, x 8.
2. The same, seen from the side, x 8.
3. Male, seen from the side, x about 50. 4-6. Lernseopoda galei Kroyer. (p. 197.)
4. Female dorsal view, x 4.
5. The same, seen from the side, x 4.
6. Male, seen from the side, x about 50.
7. Brachiella ovalis (Kroyer), seen partly from the side, x about 12. (p. 210.)
PLATE LX
\
Plate 61
PLATE LXI.
FIGS.
1, 2. Lernseopoda Indiscalis W. F. de Visme Kane. (p. 200.)
1. Female, dorsal view, x about 6.
2. The same, seen from the side, x about 6. 3,4. Lernseopoda elongata (Grant), (p. 195.)
3. Female, dorsal view, x 2*3.
4. The same, seen from the side, x 2'3. 5, 6. Lernseopoda similis sp. n. (p. 202.)
5. Female, dorsal view, x 10i.
6. The same, seen from the side, x 10^.
Note— Vol. I, p. 195, for Plate LXI, tigs. 5, 6 ; read figs. 3, 4; and page 202, for Plate LXI, figs. 3, 4; read figs. 5, 6.
PLATE LXI
*x
}
Plate 62
PLATE LXIL
FIGS.
1. Brachiella trigla Glaus, ?, ventral aspect, x 20.
(p. 209.)
2. Brachiella insidiosa Heller, ?, side view, x 5.
(p. 206.)
3. Brachiella ro strata Kroyer, ? , side view, x 5. (p. 205.) 4, 5. Brachiella merluccii Bassett-Smith, Q , x 6. (p. 207.)
4. Dorsal view.
5. Side view.
PLATE LXM
Plate 63
PLATE LXIII.
FIGS.
1. Lernseopoda galei Kroyer, £ , abdomen and caudal
furca, x 26. (p. 197.) 2-8. Brachiella rostrata Ki*6yer, ? & <$ . (p. 205.)
2. 2 Antemiule.
3. Antenna.
4. Mandible.
5. Maxilla.
6. First maxilliped.
7. <$ First maxilliped.
8. Second maxilliped.
9-16. Brachiella insidiosa Heller, $ & $ . (p. 206.)
9. 2 Antennule.
10. Antenna.
11. Mandible.
12. Maxilla.
13. First maxilliped.
14. <$ Antenna.
15. First maxilliped.
16. Second maxilliped.
17-20. Brachiella merluccii Bassett- Smith, Q. (p. 207.)
17. Antennule.
18. Mandible.
19. Maxilla.
20. First maxilliped.
21-25. Brachiella triglse Glaus, ? . (p. 209.)
21. Antennule.
22. Antenna.
23. Mandible.
24. Maxilla.
25. First maxilliped.
26-30. Brachiella ovalis (Kroyer), ?. (p. 210.)
26. Antennule.
27. Antenna.
28. Mandible.
29. Maxilla.
30. First maxilliped.
(Figures much enlarged.)
PLATE LX1I1
Plate 64
PLATE LXIV.
FIGS.
1-3. Achtheres percarum Nordmann, ?. (p. 193.)
1. Anterior end, ventral aspect, shewing mouth-
appendages.
2. First maxillipeds, side view.
3. Second maxilliped, side view. 4-6. Brachietta tlrynni Cuvier. (p. 204.)
4. Male, seen from the side, x 30.
5. Female, scarcely mature, head wanting, slightly
enlarged.
6. Female, adult, x about 3.
7. Brachiella parkeri G. M. Thomson, ?, x 3i. (p. 212.)
8. Brachiella pastinacas P. J. van Beneden, 9 . x 10.
(p. 211.) ^
9. Brachiella bispinosa Nordmann, $, x 7, side view;
after Nordmann. (p. 211.)
(Figs. 1-8 and 9 after Nordmann; 4-6 after Steenstrup & Liitkeii; 7 and 8 after Miss Bainbridge.)
PLATE LXIV
Plate 65
PLATE LXV.
FIGS.
1. Clavella brevicollis (M. Ed wards) ; ?, side view, x about
20. (p. 220.) 2, 3. Clavella'nncinata (0. F. Miiller). (p. 214.)
2. ? , Side view, x about 7.
3. <$ , Side view, x about 45.
4. Clavella rugosa (Kroyer), $, side view, x 4^. (p. 216.)
A male is shewn attached to the cephalothorax.
5. Clavella rugosa (Kroyer), $ , side view, x about 40.
6. Clavella (?) uncinata, ? (juv.),with two males attached
to the abdomen, enlarged, (p. 214.)
7. Clavella dubia, T. & A. Scott, ? , side view, x 7.
(p. 217.) 8, 9. Clavella stellata (Kroyer), ? . (p. 220.)
8. Side view, shewing1 a section of the scale of the
fish to which the adhesive disk of the Clavella is attached, x 4^-.
9. Adhesive disk, enlarged.
PLATE LXV
>'
Plate 66
PLATE LXVI.
FIGS.
1-7. Clavella rugosa (Kroyer), ? & £ . (p. 216.)
1. ? Antemiule.
2. Antenna.
3. Mandible.
4. Maxilla.
5. First maxilliped.
6. J1 First maxilliped.
7. Second maxilliped.
8-11. Clavella dubia T. & A. Scott, ? . (p. 217.)
8. Antennule.
9. Mandible.
10. Maxilla.
11. First maxilliped.
12-16. Clavella brevicollis (M. Edwards), ? . (p. 220.)
12. Antennule.
13. Antenna.
14. Mandible.
15. Maxilla.
16. First maxilliped.
17-20. Clavella emarginata (Kroyer), ? . (p. 218.)
17. Antennule.
18. Mandible.
19. Maxilla.
20. First maxilliped.
21-23. Clavella uncinata (0. F. Muller), tf . (p. 214.)
21. Antennule.
22. Maxilla.
23. First maxilliped.
(Figures much enlarged.)
PLATE LXV1
Plate 67
PLATE LXVII.
FIGS.
1-3. Clavella scombri (Kurz) . (p. 218.)
1. Female, side view, x 12. A male is shewn
attached to the cephalothorax.
2. Female, in situ on gill-arch of fish, x about 4.
3. Male, side view, x 56.
4-6. Clavella paradoxa (P. J. van Beneden). (p. 222.)
4. Female, dorsal view, x about 20.
5. Female, in situ on gill-filament of fish, x 5.
6. Male, side view, x 25.
PLATE LXVH
Plate 68
PLATE LXVIII.
FIGS. 1-7. Clavella scombri (Kurz), ? & cJ. (p. 218.)
1. $ Antennule.
2. Antenna.
3. Mandible, apex shewing serrated edge.
4. Maxilla.
5. First maxilliped.
6. (J First maxilliped.
7. Second maxilliped.
8-14. Clavella paradoxa (P. J. van Beneden), ? & S . (p. 222.)
8. ? Antennule.
9. Antenna.
10. Mandible, apex shewing serrated edge.
11. Maxilla.
12. First maxilliped.
13. ^ First maxilliped.
14. Second maxilliped.
15. Clavella quadrata Bassett-Smith, ?, enlarged (after Bassett-Smith). (p. 223.)
(Figures much enlarged.)
PLATE LXVIII
Plate 69
- •> VvJ
- *
_.. *...
I/
^
PLATE LXIX.
FIGS.
1-3. Clavella canthari (Heller), (p. 224.)
1. Female, dorsal view, x 9*3.
2. The same, seen from the side, x 9'3.
3. Male, seen from the side, x about 50. 4-6. Clavella alata Brian, (p. 225.)
4. Female, dorsal view, x 15.
5. The same, seen from the side, x 15.
6. Male, seen from the side, x about 50.
7. Clavella emarginata (Kroyer) ? , side view, x about 13. (p. 218.)
PLATE LXIX
Plate 70
PLATE LXX.
FIGS. 1-13. Kroyeria lineata P. J. van Beneden. (p. 121.)
1. Female, dorsal view, x about 24.
2. Antennule.
3. Antenna.
4. Mandible.
5. Maxilla.
6. First maxilliped.
7. Second maxilliped.
8. Foot of first pair.
9. Foot of second pair.
10. Part of genital segment, and abdomen seen from
the side.
11. One of the cephalic spines.
12. Male, dorsal view, x about 24.
13. One of the cephalic spines.
(Figures 2-11 and 13 greatly enlarged.)
PLATE LXX
Plate 71
PLATE LXXI.
FIGS.
1-12. Eudactylina insolens sp. n., ? . (p. 135.)
1 . Dorsal view,, x 50.
2. Side view, x 50.
3. Antennule.
4. Antenna.
5. Mandible.
6. Maxilla.
7. First maxilliped.
8. Second maxilliped.
9. Foot of first pair.
10. Foot of second pair.
1 1 . Foot of third pair.
12. Foot of fourth pair.
13. Brachiella pastinaca P. J. van Beneden, ? , side view,
x 10. (p. 211.)
14. C aligns pelamydis Kroyer, <$ , dorsal view, x 24. (p.
58.)
(Figures 3-12 greatly enlarged.)
Note. — Fig. 13 is not referred to in the text, as the specimen was only recently obtained.
PLATE LXXI
Plate 72
PLATE LXXII.
FIGS. 1-10. Argulus foliaceus (Linn.), $ . (p. 227.)
1. Female, dorsal view, enlarged about 6^ times.
2. Antenna.
3. Antennule.
4. Mouth, side view.
5. Siphon with retractile stylet.
6. Second maxilliped.
7. First swimming foot.
8. Basiopodite of second foot.
9. Basiopodite of third foot. 10. Basiopodite of fourth foot.
(Figures 2-10 much enlarged.)
PLATE LXXII
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