28 ANOMA. 



Cyl. paivana PFR., Novit. Conch., pt. 22, p. 258, pi. 65, f. 

 8, 9 (May, 1865) ; Monogr., vi, p. 357. GLOYNE, J. de C., 

 1875, p. 122. 



The small size, uniform yellow or dingy yellow tint and 

 abruptly truncate columella readily distinguish this form, 

 which is not uncommon. The yellow tint fades in time to 

 dirty white. Except for excessively fine striation on the latter 

 part of the last whorl, the surface is nearly smooth. The keel 

 is longer than in A. splendens citrina. Both size and form 

 vary rather widely, specimens measuring : 15 x 5.3 mm. ; 

 17.2 x 6 mm. ; 16.5 x 5.2 mm. Figures 58 and 59 are copies of 

 Pfeiffer's. Gloyne has reported paivana from Mt. Diablo, 

 but whether the specimens were correctly identified or not is 

 an open question. 



15. A. DOHRNIANA (Pfeiffer). PI. 16, figs. 23, 24. 



11 Shell subperf orate, subfusiform, slender, smooth, glossy; 

 coffee- colored, with a whitish band at the suture. Spire 

 slightly tapering downwards, and slowly tapering upwards 

 from the middle, narrowly truncate; suture simple, little im- 

 pressed. Nine whorls remaining are flattened, the last one 

 scarcely higher than the preceding, rib-striate anteriorly, the 

 base with a somewhat compressed keel. Aperture oblique, 

 sub circular, the peristome rose-flesh colored, expanded, the 

 margins joined by a rather thin callous; right margin pro- 

 duced upwards at the insertion; columellar margin sinuous, 

 somewhat toothed above. Length 17.5, diam. 4.66 mm.; 

 length of aperture with peristome 4, width 3.75 mm." (Pfr.). 



Jamaica. 



Cylindrella dohrniana PFR., Malak. Bl., xviii, 1871, p. 119 ; 

 Novit. Conch., iv, p. 74, pi. 121, f . 14, 15 ; Monogr., viii, 423. 



I have not seen this form, which apparently differs from 

 A. splendens chiefly by its slender shape and the rib-striation 

 of the back of the last whorl. 



16. A. PULCHELLA (Chitty). 



" This pretty shell in color resembles var. tricolor. Shell 



