Page

Catapagurus Sharreri, A. Milne-Edwards, in Epizoanthus americanus, Verrill. S. I. Smith.

Catapagurus Sharreri removed from the polyp-colony. S. I.

Smith

Latreillia valida, de Haan.

PLATE V.

To face p. 137.

A female specimen, with separate figure of the head from below, flanked on the left by dorsal views of the male head and pleon, and on the right by dorsal views of the female head and pleon. De Haan

PLATE VI.

To face p. 153.

Lithodes histrix, de Haan. A male specimen, with separate figures of the right chela and of the pleon, the latter shown in one view armed with its spines, in the other denuded of them. De Haan

PLATE VII.

168

166

169

Tylaspis anomala, Henderson. Challenger Anomura
Pylocheles spinosus, Henderson. Challenger Anomura
Porcellana longicornis (Linnæus). Early larval form. Sars 172
Uroptychus insignis, Henderson. Challenger Anomura

Third maxilliped of Uroptychus insignis

Under surface of Uroptychus insignis, showing the pleon folded naturally

178

Uroptychus gracilimanus, Henderson. Challenger Anomura 178 Ptychogaster Milne-Edwardsi, Henderson. Chall. Anomura 178

PLATE VIII.
To face p. 178.

larval stage.

End of pleon in the last
Sars

Lithodes maia (Linnæus)

Eupagurus Bernhardus (Linnæus)
Porcellana longicornis (Linnæus)
Galathea intermedia, Lilljeborg

Munida rugosa (Fabricius)

LIST OF ILLUSTRATIONS

xiii

PLATE IX.

To face p. 186.

Sars

Bate

Page

186

198

Upogebia littoralis (Risso). First post-larval stage.
Palinurus vulgaris, Latreille. Earliest larval form.
Nephrops norvegicus (Linnæus). Second larval stage. Sars 202

Cheiroplatea cenobita, Sp. Bate. Challenger Macrura
Telson and uropods of Cheiroplatea cenobita
Thaumastocheles zaleucus (v. Willemoes Suhm). Bate
Platybema rugosum, Sp. Bate. Challenger Macrura
Atya sulcatipes, Newport. Bate

First trunk-leg of Atya sulcatipes

Telson and uropods of Atya sulcatipes.

Nematocarcinus undulatipes, Sp. Bate. Challenger Macrura 250

PLATE XI.

To face p. 211.

Stenopus hispidus (Olivier). With separate figures showing the maxillæ, maxillipeds, first and second pleopods, and plan of the branchial arrangements and proportions. Bate

PLATE XII.

To face p. 219.

Hepomadus glacialis, Sp. Bate. Challenger Macrura
Peræon from below, showing the thelycum

Epistome, mandible, lower lip, first maxilliped, and
branchial plume in section

Mysis relicta, Lovén. A female specimen in lateral view. Sars 272

99

Ventral view of the cephalo-thorax
Ventral view of telson, with inner

branch of each uropod

The eye, and a section of the upper part
of it

Squilla scabricauda, Lamarck. Desmarest

In both the dorsal and ventral view the first maxillipeds are drawn back behind the large second maxillipeds, as otherwise they could not be seen

Squilla empusa, Say. Late larval stage. S. I. Smith

PLATE XIV.

To face p. 338.

Euneognathia gigas (Beddard). Challenger Isopoda.

284

The male, the female, and the first gnathopod of the male

Neasellus kerguelenensis, Beddard. Challenger Isopoda
Ischnosoma spinosum, Beddard. Challenger Isopoda

PLATE XV.

To face p. 352.

Cirolana borealis, Lilljeborg. The adult male. Hansen

Head from below, and mandible

Nerocila Lovéni, Bovallius. Bovallius

Dorsal and ventral view.

Ceratothoa auritus (Bovallius). Bovallius

290

338

381

Dorsal and lateral view of female; dorsal view of male 354

PLATE XVI.

To face p. 389.

Phreatoicus typicus, Chilton. Chilton

389

Second maxilla, second pleopod, telson, and uropod of

Phreatoicus typicus

Phreatoicus australis, Chilton. Chilton

389

LIST OF ILLUSTRATIONS

XV

PLATE XVII.

To face p. 397.
Sars

a. Microniscus calani, Sars.

b. Cyproniscus cypridinæ (Sars). A female (with a male in the normal position) affixed to the body of a Cypridina norvegica. The right valve of the host has been removed.

Sars

c. Adult ovigerous female of the Cyproniscus, detached, and viewed from above

d. Younger female, not yet ovigerous, in lateral view

e. Male, probably adult, with the anterior extremity carrying two root-like processes, and embedded in the skin of the Cypridina

f. Larva in the last stage of development, seen from above

PLATE XVIII.

To face p. 414.

Portunion mænadis, Giard, on Carcinus mænas (Pennant).
Giard and Bonnier

Portunion Kossmanni, Giard and Bonnier. Giard and
Bonnier

Cancricepon elegans, Giard and Bonnier. Lateral view of
female; dorsal view of male and female. Giard and
Bonnier

Gigantione Moebii, Kossmann. Dorsal and ventral view of female. Kossmann

Page

397

397

407

408

413

414

PLATE XIX.

To face p. 425.

Helleria brevicornis, von Ebner

The head from above, the head and pleon from below; the antenna; mandible, lower lip; first maxilla, second maxilla, maxilliped; first leg; rudimentary first pleopod with opercular plate of the second, stilet of the second pleopod, fourth pleopod showing the opercular plate broadside and edgeways, and the peduncle with the bran chial plate; uropod. Von Ebner

ILLUSTRATIONS IN THE TEXT

1. The lady in the chair.' [Herbst].
2. Ethusa mascarone (Herbst). [Herbst]

3. Corystes cassivelaunus (Pennant). [Herbst]
4. Gelasimus arcuatus, de Haan. [de Haan]
5. Huenia proteus, de Haan, adult male. [de Haan]
6. Huenia proteus, de Haan, young male. [de Haan]
7. Huenia proteus, de Haan, female. [de Haan]
8. Chorinus aculeatus, Milne-Edwards. [Aurivillius]
9. Myra fugax (Fabricius). [de Haan]

10. Dorippe japonica, von Siebold. [de Haan]

131

11. Ranina scabra (Fabricius). [de Haan]

141

12. Zanclifer caribensis (de Freminville). [Henderson]

144

14. Spiropagurus spiriger (de Haan). [de Haan]

165

15. Porcellana longicornis (Linn.), young form. [Stebbing]. 16. Ibacus incisus (Péron). [Desmarest]

172

194

17. Astacus americanus (Milne-Edwards), larval form. [S. I.

18. Astacus americanus (Milne-Edwards), larval form. [S. I. Smith]

204

19. Astacus americanus (Milne-Edwards), larval form. [S. I.

22. Mysis relicta, Lovén. First maxilla. [G. O. Sars]