T'TKUol'OKA. 147 



Geuus SINUSIG-ERA, OrbUjiiy. 



Testa minuta ovato-subglobosa, medio anfractiis ultimi 

 spiral iter sulcata, apertura subovata, labro sinuato, marginato 

 bilobato, spira breviiisciila. — In both the species known the 

 outer lip is curiously sinuous, bordered, and bilobed. 



42. CANCELLATA, f. 59, Orbiguy. — Fusca cancellata, medio 

 anfractuum sulcata ovata ; spira producta, anfractibus tribus 

 tumidiusculis ; apertura subovata ; columella tortua, labio 

 externo marginato sinuato bilobatim acute producto. — Dark 

 brown, cancellated, with a groove in the middle of the last 

 whorl. The two sinuous lobes of the outer lip are produced 

 and sharply square. 



43. MiCROSCOPiCA, f. 58, Gray (Struthiolaria). — Fulva 

 breviuscula, medio ad sulcum rubro-lineata, labio externo 

 obtuse bilobato. — Shorter, and of a lighter colour than 

 S. cancellata, with a pointed columella, and the two sinuous 

 lobes of the outer lip more obtuse and less produced. 



Genus CYMBULIA. 



A boat-shaped, prickly integument takes the place of a 

 shell in this genus. 



44. C. Pehonii. 



