Il6 



MADRAS FISHERIES BULLETIN 



VOL. XIV, 



The third Indian genus of the Strombs is Rostellaria, a beautiful 

 finely tapered, spiral brown shell, not unlike a smooth Screw-shell 

 except that the walls are thick and the mouth whorl expanded into 



Fiu. 9. Living appearance of Roslellaria ciirta, (25 fms. off Malabar). X 3 



a wide wing armed with several stout spines at the side, and the 

 front end prolonged into a long semi-tubular pointed "canal." 

 (fig. 9). Rostellaria is rare in the Gulf of Mannar but off the 

 Malabar coast it is fairly abundant in places ; numerous specimens 

 of R. curtd were dredged in 10 to 30 fathoms during the cruise of the 

 Margarita in 1908. 



Closely related, but very different in outward form, is 

 Xciiop/wra, a shell not uncommon in deep water in company with 

 Rostellaria. The shape is trochiform (" like a Trochus ") but more 



Fig. 10. Living appearance of the Stellate Xciiophora. (Malabar, 20 fnis.). 



