872 



anfractibus seriebus duabus tuberculatis j apertura alba, patula ; 

 labio interno uiiiplicato. 



Kesembling carbonarum, but a more solid shell, with the aper- 

 ture spread, and the caual longer, llo Ilo, Island of Panay, Phi- 

 lippines, 77. Owning. 



98. Cerithium alternatum (pi. clxxix. f. 70, 73, and pi. 

 clxxxiii. f. 179), Nobis. 



Cerith. testa subventricosa, alba seu alternatim albo et fusco 

 fasciata; anfractibus subangulatis, costis nodulosis et interstitiis 

 striatis cinctis; apertura ovali; cauali brevi; labio interno ple- 

 rumque violaceo. 



This pretty species is either all white, or it has white beaded 

 ribs, with brown bands in the interstices. Hab. Island of Ticao, 

 Philippines, 77. Cuming. 



99. Cerithium purpurascens (pi. clxxxiii. f. 182-186), 

 Nobis. 



Cerith. testa ventricosa, nodulis acutis armata, maculis seriatim 

 variegata ; anfractibus angulatis, ad angulum tuberculis acutis 

 magnis, ad suturam et in medio tuberculis parvis rotundatis cinc- 

 tis, ultimo ventricoso ; apertura magna ; labio interno medio pur- 

 purea, postice uiiiplicato, labio externo uncinato. 



The form is rather ventricose, with angulated whorls. The 

 spiral ribs are armed with sharp nodules, behind each of which, in 

 some varieties, there is a brown spot. The aperture is large, with 

 a purple spot on the columellar lip. The brown and black-spotted, 

 or lineated varieties, are Mr. Cuming's, from the Philippines ; the 

 red-spotted and black varieties are Mr. Hanley's. 



100. Cerithium nitidum (pi. clxxxiii. f. 180, 181), Nobis. 

 Cerith. testa C. purpurascenti simili, sed crassiore, angustiore, 



nodulis depressis ; colore fusco, rubescente nonnunquam lineato. 



Lip ventricose, more solid, and with the nodules more depressed 

 and moniliforin than C. purpurascens. Mr. Cuming collected the 

 species at the Island of Bohol, Philippines. Mr. Hanley and Mr. 

 Metcalfe also have specimens. 



101. Cerithium splendens (pi. clxxxiii. f. 191), Nobis. 

 Cerith. testa pyramidali, acuta, grisescente; anfractibus angu- 

 latis, costis acute noduliferis et nigro-punctatis cinctis; canali 

 mediocri. 



Of an acute pyramidal form, with sharply armed ribs, which are 

 marked between the nodules with black or dark brown spots. The 



