60 ACM^EA. 



A. SQUAMOSA Quoy & Gaimard. PI. 35, figs. 34, 35. 



Shell orbicular, stibplane, fragile, radiately very delicately striated, 

 painted with green and brown areoles ; inside bluish, margin black- 

 ish, center chestnut colored. Length 16, breadth 14, alt. 4 mill. 



Isle of France. 

 Patelloida squamosa Q. & G., Astrol. iii, p. 260, t. 71, f. 38, 39. 



VII. SPECIES OF UNKNOWN HABITAT. 



The original figures and descriptions of these are copied. I have 

 been able to identify none of them, and they have not been noticed 

 by other authors. 



A. ACHATES Reeve. PL 35, figs. 38, 39. 



Shell ovate, rather thin, convexly depressed, radiately densely 

 striated, striae here and there finely corded ; intense black, irre- 

 gularly variegated with lightning-marked white rays ; interior bluish, 

 with a broad black variegated border. (Eve.) 



Habitat unknown. 



P. achates RVE., Conch. Icon., f. 123, 1855. 

 A. LENTIGINOSA Reeve. PL 37, figs. 20, 21. 



Shell ovate,* convex, apex inclined anteriorly, obtuse, radiately 

 striated, striae more or less eroded ; whitish, interruptedly rayed 

 and promiscuously wave-freckled with blackish chestnut; interior 

 bluish-white. 



This species is well-characterized by the promiscuous wave- 

 freckled style of its dark chestnut painting. (Eve.) 



Habitat unknown. 



P. lentiginosa Rv., Conch. Icon., f. 110. 



It is very difficult, in the absence of locality, to identify limpets. 

 The species from different parts of the world sometimes resemble 

 each other so closely. This should be compared with the form 

 described by me as A. chathamensis, and with the more speckled 

 forms of A. borneensis. 



A. LIMA Reeve. PL 33, figs. 86, 87. 



Shell oblong-ovate, convex, apex anterior, rather hooked, radi- 

 ately closely ridge-striated, striae very minutely prickly-scaled; 

 greenish-olive, interior bright, blue green, purple-brown at the mar- 

 gin. (Eve.) 



Habitat unknown. 



