PUNCTURELLA. 231 



others. Apex strongly recurved. Margins nearly entire. Length 

 4 mill. 



Falkland Is. 

 Rimula conica Orb., Voy. dans l'Amer. Merid. p. 471, t. 78, f. 

 10, 11. 



P. nobilis A. Adams. PI. 63, figs. 34, 35, 36, 37. 



Elevated-conical, vertex acuminate, inclined, acute; radiating 

 ribs strong, equidistant, interstices concentrically striated. Fissure 

 narrow, lanceolate. Margin deeply crenulated. Resembling C. 

 cucnllata Gould, but with the ribs stronger, wider apart and equal ; 

 the apex moreover is considerably more elevated and acute. (Ad.) 



OJcosiris, Japan. 



Cemoria nobilis Ad. in Thes. Conch, iii, p. 208, f. 6-9. — Sown, in 

 Conch. Icon, xix, f. 6. 



P. falklandica A. Adams. PI. 63, fig. 33. 



Whitish, conical, apex incurved ; radiately ribbed, ribs strong, 

 subdistant, equal, corrugated by close concentric stria?. Fissure 

 narrow, lanceolate ; aperture ovate, margin crenated. In this species 

 the ribs are very distinct, and the concentric raised lines are acum- 

 inate where they cross the ribs. (Ad.) 



Falkland Is.; West coast of Patagonia, 449 fins. 



Cemoria falkandica Ad. in Thes., p. 208, f. 14. — Sowb. in Conch. 

 Icon., f. 8. — Puncturella falkandica Dale, Rep. Albatross Moll., in 

 Proc. U. S. Nat, Mus. xii, 18<S9, p. 356. 



Differs from P. noachina only in the generally shorter fissure, 

 septum shorter, more vertical, apex less posterior, but is doubtfully 

 distinct, according to Dr. Dall. The animal has a well marked 

 verge. 



P. cooperi Carpenter. 



Almost exactly like P. galeata, but the internal plate solid, plane, 

 scarcely anteriorly sinuate, scarcely propped. 



Outside like P. noachina, but with the lamina like P. cucidlata, 

 without eye-holes [accessory lateral pits]. The latter species is ex- 

 tremely variable in sculpture but never so fine as this ; and the 

 shape is less conical. Length - 30, width 0'21, alt. 0'24 inch. 

 (Cpr.) 



Catalina Island, Cal., not rare, 20-40 fms. 



