868 



79. Cerithium obesum (pi. clxxxi. f. 141, 142), Nobis. 



Ceritb. testa crassa, ventricosa, striata, nigro vel griseo macu- 

 lata, ad suturas unclulata ; apertura magna, subtrigona ; labio in- 

 terno antice brevissimo, postice calloso ; canaH brevissimo. 



Much more ventricose than C. dorsuosiim, the whorls undulated 

 near the suture, and the back not so remarkably raised. Rah. 

 Island of Bohol, Philippines, Cuming. 



80. Cerithium sculptum (pi. clxxxii. f. 144, 145), Nobis. 



Cerith. testa parva, solida, ventricosa, fusco-nigrescente varie- 

 gata, spiraliter costellis plauulatis, crenulatis, et interstitiis linea- 

 ribus cincta ; anfractibus rotandatis, ultimo magno ; apertura ro- 

 tundata ; canali breve ; labio externo crenulato fimbriato. 



A small, solid, darkly variegated, grooved shell, of a rather 

 conical form, with rounded whorls. Locality unknown. 



81. Cerithium lutuosum (pi. clxxxii. f. 146, 147, 148), 

 MenJce. C. mutabile, C. B. Adams, incluso. 



Cerith. testa parva, brevi, grisea, nigro variegata, ventricosa, 

 longitudinaliter et spiraliter granosa ; apertura subrotunda ; canali 

 brevissimo. 



A very little, black, mottled, short, ventricose shell, granulated 

 by the crossing of sulci in each direction. Jamaica. Fig. 147 is 

 from a small shell in Mr. Hanley's collection, which may possibly 

 be distinct. Fig. 148 represents C. mutabile. 



82. Cerithium Sayi (pi. clxxxii. f. 149, 150, 151), MenJce. 

 C. nigra, Totten, Silliman's Journ. xviii. 353. f. 8. C. reticulatum, 

 ToUen, Silliman's Journ. xxvi. 369. pi. 1. f. 7. C. Iota, Gould? 



Cerith. testa, parva, subconica, brevi, nigra, cancellata, costis 

 longitudinalibus et striis' elevatis cancellata, sutura excavata. 



Very small, black, conical, cancellated by longitudinal ribs and 

 spiral raised lines. Continent of North America. C. Iota, Gould, 

 is represented by figure 151. 



83. Cerithium incisum (pi. clxxxii. f. 152), Nobis. 

 Cerith. testa elongata, spiraliter inciso-sulcata, fusco-viridescente, 



nigro maculata ; anfractibus subventricosis, gradatim crescentibus, 

 prope suturam angulatim subelevatis ; apertura magna ; labio in- 

 teruo postice uniplicato, antice in canalem distinctum terminato ; 

 labio externo laqueato. 



Mr. Cuming's collection contains several specimens from Aus- 

 tralia, and one collected by himself in the Philippines. It is a 



