172 ADAMSIELLA $. 2. 
male. — Long. 14, diam. 8 mill. Ap. 4'/,, cum limbo 3. 
mil. longa. (Coll. Nr. 128.) 
Cyclostoma obscurum Gray mss. olim. Nec Drap. 
— — Som. "Thes? N. 157. p. 147.-t. 98. t; 169. *) 
— Grayanum  Pfr. in. Zeitschr. f. Malak, 1846. p. 43. 
-— — Adams Cat. shells. Jan. 1847. Conf. Contrib. 
to Conch. N. 1. p. Y5. 
— — Chemn;'ed: UE N1 49. 5:749: 1*8. "HI YS T6 
Choanopoma Grayanum  Pfr. in Zeitschr. f. Mal. 1847, p. 107. 
— — Gray Catal. Cycloph. p. 52. N. i8. 
Adamsiella Grayana Pfr. Consp. N. 247. 
8. Peristomate distinctius duplicato, concentrice striato, interno prominente. 
Cyclostoma concentricum dams. Contrib. to. Conch. N. 1. p. 4. **) 
(Ex spec. authent.) 
y. Peristomate latius expanso, concentrice striato, rufo, margine sinistro 
subundulato. 
Cyclostoma serriferum Adams Contrib. to Conch. N. 1. p. 4. ***) (Spec. 
authent.) 
Habitat in. insula. Jamaica. 
*) T. ventricoso-subpyramidali, fusca, apice decollato; anfr. 4 ventri- 
€osis, decussatis, subasperis; sutura crenulatiuscula; apertura circulari; peri- 
tremate crasso, reflexo - subpatente, albicante; umbilico minori; operculo 
lamina spirali reflexa. (Sow. l. c.) 
**) "This may be a variety of C. varictbile; it is chiefly distinguished 
by having the lamellae between the inner and outer peritremes so much 
produced as to appear like numerous concentrie margins; by having the lip 
reflected farther back; by a more slender general form, the mean diverg- 
ence being 33? to 359. "The lip is reddish purple, with darker rays of the 
same conspicuous in the more simple lip of the young, and the square 
sutural spots are always faint. (Adams l. c.) 
***, Shell ovate-conic, moderately elongate; reddish brown with a series 
of rather dark spots of the same; with very thin and sharp transverse per- 
pendieular rather distant lamellae, which are serrated by a few faintly impress- 
ed spiral lines: spire with convex outlines; apex truncate with the loss of 
about three whorls; remaining whorls four and one half, moderately convex, 
with a well impressed suture; last whorl scarcely detached from the penult 
whorl near the aperture, which is orbicular; inner peritreme not produc- 
ed (7); outer peritreme shining, well expanded, except opposite to the 
penult whorl; umbilicus narrow, but extending through the truncate apex. 
Mean divergence about 40?; length 0,57, greatest breadth 0,35, least 
breadth 0,275 inch. — This may possibly be an accidental variety of 
C. Grayanum or of some other of this group. The only specimen 
which I have does not appear to have the lip fully developed with age. 
(Adams ], c.) 
