CEPHALOPODA FBOM THE CALCUTTA MUSEUM. 5 



At this point the suckers are small and resting on elevated transverse ridges. Scattered 

 about the siphon of one specimen are spermatophores, conspicuous for the covering of 

 black adhesive substance at the base (fig. 5). 



Sepiella inermis (van Hasselt, MS.). 



Among the 25 specimens referred to this species there is great variation as to general 

 appearance, shape, width of the fins, and details of the structure of the pen. Neverthe- 

 less I have not been able to distinguish any modifications of specific importance. The 

 differences in the soft parts seem to be due to varied preservation. Six specimens were 

 captured near Madras, three near Bombay, five at Sandlieads, one in the Chilka Bight, 

 one at Mergui, two at Singapore, two at Penang, and five off the Ganjam coast at a depth 

 of 10 fathoms. 



PamHy LOLIGINEI. 



Sepioteuthis indica, n. sp. fPl. 1. figs. 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, & 19.) 



Although the nine specimens in the collection belonging to the genus Sepioteuthis 

 differ considerably in size and colour, I refer them all to one species. The best- 

 preserved individuals are of a pale brownish-yellow ground-colour, sprinkled with slate- 

 coloured chromatophores, very thickly on the upper surface of the mantle, head, and 

 arms, more sparsely on the lower surface. 



Seven specimens come from the Andamans, and two from Singapore. 



Below are the principal measurements of a large male and of a large female : — 



Large Male. Large Female, 

 centim. centim. 



Length of mantle (lower surface) .... 15'5 18"3 



Breadth „ near margin 5"1 5'9 



„ „ halfway 5-1 6*1 



„ fin 7 cm. from mantle-edge . . . 2'9 2'9 



ir, £ ii 1 .1 12-5 cm. from") n c- 



„ „ 10 cm. trom mantle-edge ... 3 \ o'b 



mantle-edge J 



Length of dorsal arm 5"2 5"5 



„ dorso-lateral arm 6"3 6*5 



„ ventro-lateral „ 8 9 



„ ventral „ 7-4 8"6 



„ tentacular „ 13'5 15 



club 5-2 Q-7 



Length of pen . . . ^ \2> cm. $ 20"5 cm. 12-7 cm. 



Breadth of pen . . . 2"4 4 3 



Prom the outline figure given (fig. 9) it Tvdll seen that the fins are perfectly rounded, 

 while the mantle from about halfway tapers to a blunt point ; the whole forming an 

 almost perfect oval. In this respect this species resembles 8. BlaiiwilUana, Per., and 

 S. mauritiana, Q. & G. The fins begin "35 cm. from the margin of the mantle and join 



