MELVILL— MARINE MOLLUSCA. 99 



157. Birostra longirostrata (Sowb.). 



Ovulum longirostratum, Sowerby, Spec. Couch, i. tab. 48. fig. 10 (1830). 



Loc. Saya de Malha Banks. Owing to accidental transpositions of label, a little 

 uncertain. 



I jiossess the original type of this species, from the I. Bourbon ; it is not, as wrongly 

 advertised by Paetel *, an inhabitant of the Adriatic and Mediterranean Seas. 



158. Birostra suhreflexa (Ad. & Beeve). 



Loc. Amirantes : Station E 12, 32 fathoms, coral-rubble. 

 Also recorded from the Persian Gulf {F. W. Townsend, 1906). 



159. Birostra volvct (L.). 



Log. Saya de Malha Banks : Station C 15, 55 fathoms, on loose Lithothamnia-vuhhle. 

 One specimen only of a beautiful variety, dorsally smooth, delicate, thin, light pink, 

 extremities orange-tipped. 



Family Doliidas. 

 100. Dolium costatum, Menke. 

 Loc. Cargados Carajos, 30 fathoms. 



161. Dolium maculatum, Lara. 



Loc. Seychelles : Station F 6, 44 fathoms. 



One young specimen. Tryon (Man. Conch, vii. p. 264) considers this well-marked 

 species a variety merely of costatum, Menke . 



162. Dolium olearium, Brug. 



Loc. Seychelles : Praslin I., Station P 2, 31 fathoms, on coral, sand, and Lithothamnia 

 rubble. 

 Chagos Archipelago : Peros Banhos, Coin. 



163. Dolium perdix (L.). 

 Loc. Chagos Archipelago. 



Typical, in company with an unmottled variety. The distribution of this species is 

 very wide and extended. I have gathered it myself in the West Indies, -and it seems 

 common throughout the whole range of the Eastern tropics. 



164. Dolium [Malea) pomum (L.). 



Loc. Amirantes : Station E 9, 34 fathoms, Polyzoa and shell-rubble. 



165. Fyrula ficus (L.). 



Loc. Saya de Malha Banks : Station C 2, 123 fathoms. 

 This is Ficula Itevigata, Beeve. 



166. Fyrula ficoides. Lam. [=reticulata, Reeve, non Lam.]. 

 Loc. Cargados Carajos, 30 fathoms. 



* Vide Cat. Conohyl. Saniml. i. p. 327. 



1.3* 



