XX LIST OF ILLUSTRATIONS ■ 



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Fig. 13. /^/^r/zwj', Alcock ; with commensal polyps . .120 



Fig. 14. Pleurotoma symbiotes^ Wood-Mason and Alcock ; with com- 

 mensal polyps . . . . . .130 



Fig, 15. Heterocarpus alphonsi^ Spence Bate; a luminous deep-sea 



Prawn ; reduced ...... 132 



Fig. 16. AristcBus coruscans^ Wood-Mason ; a luminous deep-sea 



Prawn ; about two-thirds the natural size . . .134 



Fig. 17. Lamprogrammus niger, Alcock ; a luminous deep-sea fish ; 



half the natural size . . . . . .136 



Fig. 18. Pheronema raphanus^ F. E. Schulze ; Bird's-nest Sponge of 



the Andaman Sea ; half the natural size . . .146 



Fig. 19. Flabellu7n laciniatum, Philippi ; one of the deep-sea Corals . 146 



Fig. 20. Prionocrangon ominatosteres^ V\l ooA-M.diSOT). ; a blind Shrimp 



from the depths of the Andaman Sea . . .148 



Fig. 21. Psalidopus spiniventris^ Wood-Mason; the Scissor-foot 



Prawn . . . . . . . .150 



Fig. 22. PalcBopneustes hemingi, Anderson ; from the depths of the 



Laccadive Sea . . . . . .168 



Fig. 23. Murex malabaricus^ E. A. Smith; from 45 fathoms, off the 



Malabar coast . . . . . .172 



Fig. 24. Tip of a milk-filament from the oviduct of a Bat-ray, show- 

 ing the capillary network, in the meshes of which the milk- 

 glands lie ...... . 212 



Fig. 25. Early shark-like embryo of the Indian Bat-ray {Pteroplatcea 



micrura^ Bl. Schn.) . . . . . .212 



Fig. 26. The Red Ocypode Crab {Ocypoda macrocera^ Edw.) . 214 



Fig. 27. Larger cheliped of the Red Ocypode Crab, showing the 



stridulating mechanism . . . . .214 



Figs. 28 and 29. Male and female of the Small Fiddler-crab 



{Gelasimus annulipes^ Latr.) . . . .218 



Fig. 30. Centroscyllium ornatum^ Alcock ; a Spiny Dog-fish, from 



205-690 fathoms ; much reduced .... 230 



Fig. 31. Macrurus investigatoris^ Alcock ; from 193-490 fathoms ; 



reduced ....... 230 



Fig. 32. Onirodes glomerosus^ Alcock ; a deep-sea Angler, with 



rudimentary eyes ; enlarged. .... 234 



