ig2i.] Fauna of the Chilka Lake : Amphipoda. 523 



8. Melita inuequistylis (Dana) Chilka Lake ; Ceylon ; South Africa ; New 



Zealand. 



9. Maera othonides Walker. Chilka Lake ; Ceylon. 



10. Ouadrivisio bengalensis Stebbing. Chilka Lake ; Port Canning, Gangetic 



Delta ; Zanzibar Island ; Talé Sap, Siam. 



11. vchestÂa platensis Kröyer. Chilka Lake; Philippine Islands ; widely distri- 



buted on warmer shores of America ; Mediterranean ; Hawaiian Islands ; 

 Tonga, Low Archipelago, etc. 



12. Talorchestia martensii (M. Weber). Chilka Lake ; Flores in Malay Archipelago. 



13. Hyale brevipes Chevreux. Chilka Lake ; Ceylon ; Laccadive Archipelago ; 



Seychelles. 



14. Grandidierella megnae (Giles). Chilka Lake ; Bay of Bengal; Madagascar. 



15. Grandidierella gilesi sp. nov. Chilka Lake. 



16. Photis longicaudata (Bate & Westw.). Chilka Lake; Philippine Islands; 



North Atlantic ; North Sea ; South Africa. 



17. Corophium triaeonyx Stebbing. Chilka Lake ; Ceylon. 



Ampelisca pttsilla Sars. 



Ampelisca pusilla Sars, 1891, p. 181, pi. 63, fig. 2. 

 Ampelisca pusilla Stebbing, 1906, p. 105 ; 1910, p. 576. 

 Ampelisca chevreuxi Walker, 1904, p 254.pl. 3, fig. 15. 



Localities : — 



1 mile S. of Kalidai. Several. 



3 to 2 miles S.E. by B. \ E, of Patsahanipur. Several. 



2 to 8 miles N.E. | E. of Kalidai. Many. 



2 to 1 miles S.E. by S. of Patsahanipur. Several. 



4 miles N.E. by \ E. of Kalidai. Many. 



2 to 1 miles S.E. by S. of Patsahanipur. Several. 



These specimens are all small, not more than about 5 mm. in length. I feel 

 pretty confident in referring them to Ampelisca pusilla. Both male and female agree 

 closely with the figures given by Sars in the proportions of the antennae and the 

 shape of the appendages and particularly in the fact that the fourth segment of the 

 pleon is scarcely carinate in the female but is distinctly carinate in the male, the 

 projection agreeing closely with Sars' figures. The specimens differ, however, from 

 Sars' description in having corneal lenses present in the normal manner. 



Stebbing has identified this species from Australia and remarks that in his 

 specimen also the corneal lenses are present. Sars says that the species occurs off 

 the coasts of Norway in considerable depths. The absence of corneal lenses in his 

 specimens is doubtless due to a degeneration of the eyes caused by the depth at 

 which it lives. I have little doubt that A . chevreuxi Walker should also be referred 

 to this species. The Chilka Lake specimens agree closely with Walker's description 

 except in having the first antenna about as long as the second, while he describes it as 



