20 Records of the Indian Museum [Vol,. VII, 



though small, is well formed and could hardly be described as a 

 mere papilla. 



Hitherto this species was only known from a single specimen ; 

 but a third example is preserved in the Museum collection. 

 This specimen measures 76 mm. in length and was obtained at vSt. 

 297. i3-iv-02. Gulfof Oman; 25°ii'3o"N.,57°i5'E. 689—700 

 fathoms. 



Family HOPLOPHORIDAE. 

 Hoplophorus gracilirostris, A. Milne-Edwards. 

 Hoplophorus gracilirostris, Alcock, 1901, p. 73. 



A single male, about 55 mm. in length, was taken at St. 391. 



Family PANDALIDAE. 



Pandalus (Plesionika) martius, A. Milne-Edwards. 

 Pandalus {Plesionika) martius, Alcock, 1901, p. 95. 



Three damaged specimens, one an ovigerous female, appear 

 to belong to this species. They were obtained at St. 391. 



Hcterocarpus gibbosus, Bate. 



Heterocarpus gibbosus, Alcock, 1901, p. 103. 



Three small specimens were found at St. 391. In all these 

 examples the rostrum is considerably longer than in adults and 

 exceeds the median length of the carapace. 



Family HIPPOLYTIDAE. 



Merhippolyte calmani, sp. nov. 



(PI. i, figs. 1-4.) 



The general form is slender and the surface of both carapace 

 and abdomen is glabrous and without trace of punctation. The 

 rostrum is twice, or rather more than twice, the length of the 

 carapace, straight to the end of the second joint of the antennu- 

 lar peduncle and thence to the apex very strongly ascendant. 

 The vertical height of the apex above the dorsal line of the 

 carapace continued forwards is about equal to the carapace-length. 

 At its base the rostrum is armed with three large and almost 

 equidistant teeth ; the median one is situated directly over the 

 orbit, while the anterior one reaches about to the end of the 

 eyes. At the extreme apex there is a small dorsal tooth but the 

 upper margin between this point and the eyes is wholly unarmed. 

 On the ventral edge there are ten teeth, large and closely set 

 towards the base, smaller and more distant towards the apex. 

 Between the proximal teeth of both margins there are a few setae. 

 All the teeth are fixed. The rostral carina is continued backwards 



