4&7 



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

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

 From the sands in the river Gambia. 



61. Cancellakia bullata (pi. xciv. f. 56), Sowerhj, Pro. 

 Zool. Soc. 1832, p. 51. 



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

 tuberculatis, ad suturam excavatis; umbiKco magno ; apertura 

 magna, Isevi ; 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. Cancellakia tubeeculata (pi. xciv. f. 52), Sowerhj, 

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



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

 et in seriebus tribus vaJide tuberculatis, ad suturam excavatis ; 

 apertura magna Isevi, ad marginem undulata, columella biphcata ; 

 umbilico magno, striato ; colore nuUo. 



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 brevis (pi. xciii. f. 21), Sowerhy, Pro. 

 Zool. Soc. 1832. p. 52. 



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

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

 apertura triangulari ; columella bipHcata ; 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.), Sowerhy, 

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



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

 raris, tuberculatis, prsecipue ad angulum anfractuum ; umbihco 

 maximo ; apertura triangulari, margine crenato ; columella bipli- 

 cata : colore autice pallide fdvo, 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. 



