136 PERCY SLADEN TETJST EXPEDITION. 



Mostly in yoimg or imperfect condition, but tlicy seem to assimilate, and are 

 probably referable as above. 



471. Chama imbricata, Brod. 



JjOC. Cargados Carajos : Station B 9, 30 fathoms, broken sliell with coral-lumps. 



Chagos Archipelago : Salomon. 

 Specimen dead, or entirely encrusted with nullipore. 



472. Chama lazarus, L. 



Loc. Amirantes : Stations E 9, 34 fathoms, E 10, 22 to 85 fathoms, rubble. 

 Both the yellow-tinted and ordinary form of this beautiful Chama occurred. 



Suborder v. MYACEA. 



Family PsammobiidsB. [Gariidge.] 



473. Asaphis deflorata (L.). [= Capsa ruc/osa. Lam.] 



Log. Chagos Archipelago : Diego Garcia, Barachois Maurice. 



I have found this species in the West Indian region not uncommonly ; for I consider 

 A. dichotoma, Ant., and coccinea, Mart., only New -World forms of a world-wide 

 species. A. violascens, Forsk., from the Red Sea, is also probably the same, and also 

 A. taheitensis, Reeve, from Polynesia. 



EaniUy GastrocliEenidse. [Rocellariidae.] 



474. Rocellaria {Spengleria) mytiloides (Lam.). [^Oastrochcena.'] 

 Loc. Providence I ; Station D 4,50- 78 fathoms, coral-rubble. 



Suborder vl. ANATINACEA. 



Family Verticordiidae. 



475. Verticordia deshayesiana, Fischer. 

 Loc. Saya de Malha Banks : Station 2, 125 fathoms. 



A fine examjile of this abyssal species, which has also been found recently to occur in 

 the Gulf of Oman, having been dredged at 156 fathoms by Mr. F. W. Townsend. 



