Zoological Society. 229 



sand. Straits of Macassar ; Lagullias Bank, Cape of Good Hope : 

 from seventy fathoms, on a gravelly bottom. 

 Cab. Belcher et Cuming. 



CoRBULA CUNEATA. Cofh. testd ovcito-tric/onu, (cqnihiterali, solida, 

 complanatn, sulcata, antice i-otundatd, postice ungulald ; valvis 

 subcEqualibiis, marcjinibus ventralibus gibbosis inclausis ; umbonibus 

 rectis ; inttcs purpiirascente. Long. 7 ; lat. 3 ; alt. 5 lin. 



Hub. Catbalonga, Philippine Islands ; from ten fathoms, soft mud. 

 Lagulhas Bank, Cape of Good Hope ; from seventy fathoms. 



Cab. Belcher et Cuming. 



CoRBULA PALLIDA. Corb. testd ovatd, tenui, elevatiusculd, sulcata, 

 antice rotundatd, postice ab mnbonibus ad marginem posticam an- 

 gulatd, valvce dextrce margine ventrali acuta, inflexd ; xnnbonihus 

 Icevigatis, rectis ; intiis prope cardincm rosed. Long. 7^ ; lat. 3 ; 

 alt. 5 lin. 



Hab. ? 



Cab. Cuming. 



CoRBULA siMiLis. Corb. testd ovatd, soUdd, sulcata, antice ele- 

 vatiusculd, rotundatd, postice ad marginem posticam oblique trun- 

 catd, ab umbonibus angulatd ; valvis ineequalibus, dextrd margine 

 ventrali subacutd, productd ; umbonibus subobliquis ; intiis rosed, 

 dente valvce sinistra; bifida. Long. 6 ; lat. 8 ; alt. 4 lin. 



Hab. Island of Corrcgidor, Bay of Manila ; in seven fathoms, 

 coarse sand. 



Cab. Cuming. 



CoRBULA scAPHOiDES. Corb. tcstd oblongd, ordinate sulcatd, in' 

 terstitiis Iccvissitne striatis, antice rotundatd, postice elongatd, ad 

 extremitatem oblique truncatd, ab umbonibus subcarinatd ; valvee 

 dextrce margine ventrali acuta, productd ; urnbonibus rectis. Long. 

 6 ; lat. 2i ; alt. 3^ lin. 



Hab. Singapore ; from seven fathoms, sandy mud, Bais, island 

 of Negros, Philippines. 



Cab. Cuming. 



CoRBULA FRAGiLis. Corb. tcstd Qvatd, tenui, albidd, striatd, striis 

 transversis minutissime reticulata, antice subproductd, rotundatd, 

 postice elongatd, ab umbonibus subrotundatd ; valva dextrce mar- 

 gine ventrali acuta, productd ; umbonibus rectis, Icevigatis, cequali- 

 bus. Long. 7 ; lat. 3 ; alt. 4 lin. 



Hab. West coast of Veragua; from eighteen fathoms, mud. 



Cab. Belcher. 



CoRBULA ALBUGixosA. Corb. tcstd rctuso-ovatd, tenui, antice ro- 

 tundatd, postice subelongatd, rotundatd ; valvis valde disparibus, 

 dextrd longitrorsum striatd, paliidd, margine ventrali productd, 

 acuta, sinistrd Iccvigatd, lineis elevatis radiantibus, epidermide 

 fused indutd ; umbonibus albidis, nitidis, ineequalibus. Long. 4| ; 

 lat. 2 ; alt. 3^ lin. 

 Hab. New Guinea ; Straits of Macassar ; from seven to twenty- 

 two fathoms, mud and coarse sand. 

 Cab. Belcher. 



