LIST OF ILLUSTRATIONS 



Face page 



Fig. I. Shells from Foraminiferal ooze from the vicinity of the Lacca- 



dives ; much enlarged ..... 32 



Fig. 2. Chlanopagurus andersoni^ Alcock ; a Hermit-crab with pro- 

 tective blanket, formed by a commensal colony of Sea- 

 anemones ; from 102 fathoms . . . .66 



Fig. 3. Male of Arnoglossus macrolophus^ Alcock ; showing the 



erectile crest of long fin-rays not possessed by the female . 70 



Fig. 4. Oviduct of the Indian Bat-ray {Pteroplatcsa micrura^ Bl. 



Schn.), laid open to show the foetus and the milk-filaments 



by which the unborn young is nourished . . .72 



Fig. 5. Boleophthalmus boddaertii^ Pall. ; one of the shore-going 



Gobies of India ...... 80 



Fig. 6. Male of the Robber-crab {Birgus latro^ Herbst.) ; one-sixth 



of the natural size ...... 84 



Fig. 7. Parthenope investigatoris^ Alcock ; one of the Spider-crabs 



that resembles eroded coral-rock . . . .92 



Fig. 8. Actcea flosculafa, Alcock ; a Coral - crab ; enlarged four 



times ........ 93 



Fig. 9. Cryptodroinia pileifera, Alcock ; with commensal sponge, 



seen from the under side ; enlarged three times . .104 



Fig. 10. Epinephelus hexagonatus^ Bl. Schn. ; one of the Coral- 

 perches ; much reduced ..... 104 



Fig. II. Heteropsammia aphrodes^ Alcock ; from the Ganjam coast ; 



twice the natural size . . . . . .112 



Fig. 12. Bembrops caudtmacula, Stdr. ; from the Coromandel coast ; 



half the natural size . . . . . .120 



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