INDIAN MYSIDACEA. 



By Walter M. TAttersall, D.Sc, Keeper of the 

 Manchester Museum. 



The following report deals with collections of Mysidacea sent 

 to me from the Indian Museum for identification. The greater 

 part of them were collected by Dr. S. W. Kemp in three localities, 

 Kilakarai and Pamban, at the northern end of the Gulf of 

 Manaar and at Port Blair in the Andaman Islands. At the latter 

 place Dr. Kemp made collections at eight different stations and 

 in order to save repetition I give here a list of these stations with 

 full particulars, merely giving the station number under each 

 species. 



Port Blair, Andaman Islands. 



List of stations at which Mysidacea were obtained. 



St. 3. 19-11-15. North Bay, ca. 1 fm. Muddy sand. 



St. 5. 21-H-15. Brigade Creek, 2-5 fms. Bottom composed 



of mud with much decaying vegetable matter. 

 St. 7. 22-H-15. Off jetty, Ross I., 1^-2 fms. Sand and a 



little weed. 

 St. 8. 23-ii — io-iii-15. Between Ross I. and Aberdeen, 2-10 



fms. Bottom very varied, principally sand, weed, 



small living corals, dead coral fragments and sponge. 

 St. 11. 27-H-15. Channel N. of Viper I., 1-2 fms. Mud. 

 St. 13. i-iii-15. Reef at N. end of Ross I., shore collecting. 



Dead coral. 

 St. 19. 7-iii-i5. Semiramis Bay and off Perseverance Pt. 



Fine mud. 

 St. 21. n-iii-15. Mid-channel, N. W. of Ross I., 10-12 fms. 



Muddy sand. 

 St. 32. Feb., March, 1921. Ross Channel, 2-9 fathoms. 



Full particulars of all other localities are given under each 

 species. 



Our knowledge of the Mysidacea of Indian waters has until 

 within the last ten years been of the scantiest nature. Wood- 

 Mason, Alcock and Anderson recorded the following deep-sea and 

 bathypelagic species from the collections of the " Investigator " : — 



Gnathophausia calcarata G. O. Gnathophaasia zoea Will. -Suhm. 



Sars. {=G. bengalensis Wood- (= G. sarsi Wood-Mason.) 



Mason.) Eucopia australis Dana. 



Gnathophausia gracilis Will.- Eucopia sculplicauda Faxon. 



Suhm. (= G. brevispinis Petalophthahnus armiger Will.- 



Wood-Mason and Alcock ) Suhm. 



