457 



colour of one variety is orange, that of the other is nearly black. 

 I do not think C. rigida of Sowerby is distinct. 

 From the sands in the river Gambia. 



61. Cancellaria bullata (pi. xciv. f. 56), Sowerby, Pro. 

 Zool. Soc. 1832, p. 51. 



C. testa ventricosa, rugosa ; anfractibus angulatis, ad angulum 

 tuberculatis, ad suturam excavatis ; umbilico magno ; apertura 

 magna, Igevi ; columella biplicata, colore cinereo, apertura alba. 



The most ventricose of all the species, of a cinereous brown 

 colour, tuberculated at the edge of the whorls. 



Found in the gulf of Nocoya. 



62. Cancellaria tuberculata (pi. xciv. f. 52), Sowerhj, 

 Pro. Zool. Soc. 1832. p. 51. 



C. testa ventricosa, rugosa ; anfractibus angulatis, ad angulum 

 et in seriebus tribus valide tuberculatis, ad suturam excavatis ; 

 apertura magna lsevi, ad marginem undulata, columella biplicata ; 

 umbilico magno, striato ; colore nullo. 



It is like C. Bullata, but is rugose and strongly tuberculated. 

 It is a white shell. 



From Iquiqui, in sandy mud, six to twelve fathoms water. 



63. Cancellaria bretis (pi. xciii. f. 21), Sowerby, Pro. 

 Zool. Soc. 1832. p. 52. 



C. testa ventricosa, rugosa, anfractibus angulatis, ad suturam 

 excavatis ; costis crassis, tuberculatis, umbilico magno, crenulato, 

 apertura triangulari ; columella biplicata ; colore griseo, fusco 

 maculato. 



From Puerto Portrero, and St. Elena. Collected by Mr. Cuming, 

 in sandy mud, six to twelve fathoms water. 



64. Cancellaria goniostoma (pi. xciv. f. 40.), Sowerby, 

 Pro. Zool. Soc. 1832. p. 51. 



C. testa trigona, lgevi, anfractibus contabulatis ; costis crassis, 

 raris, tuberculatis, pracipue ad angulum anfractuum ; umbilico 

 maximo ; apertura triangulari, margine crenato ; columella bipli- 

 cata : colore antice pallide fulvo, postice castaneo, costis et peri- 

 tremate fusco punctatis. 



At Conchagua, in sandy mud, eight fathoms, by Mr. Cuming. 



65. Cancellaria trigonostoma (pi. xciv. f. 45, 46), 

 Sowerby, Conch. Illustr. f. 44. 



