an 



ovali, antice everta, efi'usa ; columella reflexfi, antice dilatata, pos- 

 tice uniplicata. 



A singular cylindrical species, with the upper part suddenly 

 acuminate, and with a wide, subquadrate aperture. 



Gindulman, isle of Boliol; soft mud, eight fathoms. (Mus. 

 Cuming.) 



23. Obeliscus attenuates (pi. clxxi. f. 22), A. Adams. 



O. testa aciculato-turrita, subperforata, gracili, apice papilloso, 

 albida, nitida, transversim subtilissime striata; anfractibus planis, 

 suturis profundis ; apertura ovali ; labio antice dilatato et reflexo, 

 postice valde uniplicato. 



A small, whitish, slender shell, transversely finely striated, and 

 with a single strong plait on the columella. 



Baclayon, isle of Boliol j under stones, low water. II. C. (Mus. 

 Cuming.) 



24. Obeliscus hastatus (pi. clxxi. f. 24), A. Adams. 



O. testa turrito-subulata, nitida, longitudinaliter substriata, 

 carneola, aut fulvescenti ; anfractibus planis, ad suturas concinne 

 crenulatis, suturis profundis, anfractu ultimo angulato, sulco 

 transverso instructo; apertura ovali, antice angustata, acuminata; 

 columella rectiuscula, triplicata. 



A beautiful pale-yellow or flesh-coloured species, with the 

 whorls crenated near the sutures. 



St. Elena, West Columbia; sandy mud, six fathoms. //. C. 

 (Mus. Cuming.) 



25. Obeliscus clayulus (pi. clxxi. f. 33), A. Adams. 



O. testa turrito-cylindracea, subpupiformi, apice obtuso, longi- 

 tudinaliter substriata, pallide fulva, maculis runs sparsim ornata ; 

 anfractibus planulatis, supra suturas sulco transverso munitis, 

 anfractu ultimo angustato, producto ; apertura elongate ovali, an- 

 tice acuminata; columella plicis tribus, obliquis instructa. 



A singular pupiform species, witli the apex very obtuse, and 

 the aperture elongated. 



Acapulco ; on the sands. Col. Moffatt. (Mus. Cuming.) 



26. Obeliscus aclis (pi. clxxi. f. 30), A. Adams. 



O. testa acuculato-turrita, acuta, aurantiaca, glabra, nitida; 

 anfractibus planis, numerosis, suturis profundis; apertura ob- 

 liqua, oblongo-ovali, antice reflexa ; columella plica valida, in me- 

 dio, instructa ; labro intus lirato. 



5 N 



