90 PATELLA. 



P. spectabilis Dkr., Ind. Moll. Gain. Infer., p. 39, t. 6, f. 7-9. 



Should be compared with P. ccerulea var. aspera. 

 P. SAFIANA Lamarck. PI. 55, figs. 19, 20. 21. 



Shell ovate-oblong, convex, variable ; having equal radiating 

 flattened white ribs, the interstices brown ; apex subacute, inflexed. 

 It is of grayish whitish above, and rayed between the ribs with yel- 

 loAvish or slightly brown rays. The internal border is of a bluish 

 nacre. (Lam.) 



Ocean coast of Morocco. 



P. safiana Lam., An. s. Vert, vi, p. 329, 1819. — Delessert, Rec. 

 de Coq. t. 22, f. 2. 



The follomng species, conspicua Ph., is jDrobably identical Avith 

 this forgotten Lamarckiau shell. 



P. CONSPICUA Philippi. PI. 56, figs. 25, 26, 26. 



Shell rather thick, ovate, a little broader behind than before, with 

 about 34 flat, somewhat sharply angular, coarse ribs, and about 

 double that number of weaker riblets in their interspaces ; the 

 border is irregularly toothed and crenated by these ribs. The apex 

 lies at the front third of the length ; the front slope is straight, back 

 slope convex. The color is whitish, with blackish-brown interrupted 

 rays, here and there connected by transverse stride. Inside, the outer 

 portion is whitish, showing the external black rays through the 

 shell ; in the center more or less reddish-yellow. Sometimes the 

 reddish-yellow color includes the central area and the muscle-im- 

 pression, sometimes the muscle-impression is the darkest reddish- 

 yellow, and the centrum itself lighter. (P/u7.) 



Length 80, breadth 62, alt. 24 mill. 



Gaboon, Guinea. 



P. conspicua Phil., Abbild. iii, p. 71, t. 3, f. 1, Octobei', 1849. — 

 Dkr., Ind. Moll. Guin. Infer., p. 43.—? Reeve, Conch. Icon., f. 12. 



I have not identified this species with certainty. The original 

 figures and description are given. 



It is doubtful whether Reeve's figures represent this species. I 

 have copied them on pi. 21, figs. 47, 48. 



P. LUGUBRis Gmelin. PL 57, figs. 32, 33, 34, 35 ; pi. 12, figs. 39, 



40, 41, 42, 43, 44. 



Shell conical, short-oval, solid; the apex situated in front of the 

 middle ; slopes slightly convex ; sculptured with numerous (34 to 



