168 PLEUROTOMA. 
/ 
P. CRYPTORRAPHE, Sowb. Pl. 3, figs. 30, 31. 
Yellowish brown to chestnut-color, with two strong sharp 
keels, and smaller revolving lines, aperture frequently tinged 
with purple. L. 70, diam. 18 mill. Philippines, Moluccas. 
It is the Pl. bicarinatus of Wood, and P. Woodii of Kiener 
(fig. 31). P. elongata, Gray, is possibly the same. 
P. Vireo, Lamarck. PI. 3, fig. 32; Pl. 4, figs. 34, 35, 43. 
Shell ridged and striated, the central ridge forming a carina; 
usually glossy white, but when covered by its epidermis corneous. 
L. 100, diam. 28 mill. West Indies. 
The above measurement is from an unusually large specimen 
before me. Pl. Antillarum, Crosse (fig. 34), and P. Jelskii, 
Crosse (fig. 35), are younger examples of the same species, the 
slight variations shown by the figures being connected with the 
type form by the series of specimens before me. P. Gruneri, 
Phil. (fig. 43), may also be referred here. 
P. Inpica, Deshayes. PI. 6, figs. 82, 80. 
Shell very like the preceding species, but less distinctly ridged, 
the shoulder-angle being very slight, and the other revolving 
ridges very much smaller and closer; yellowish brown, some- 
times indistinctly marbled or variegated. lL. 80, diam. 22 mill. 
China. 
With this species I am compelled to unite P. Deshayesit, 
Doumet (fig. 80), as I cannot find any goud distinctive characters; 
the carinations being merely a little less prominent in the latter. 
Reeve identifies with P. Deshayesti, P. elongata, Gray, a shell 
described, but not figured, in the Voy. of the Blossom. I can- 
not agree to this, as the description indicates a shell similar to 
P. cryptorraphe, Sowb. 
P. oxyTRopis, Sowb. Pl. 4, figs. 38, 39, 37. 
Shell horn-colored, with several sharp keels and numerous 
spiral raised lines, the upper keel the strongest, angulating the 
whorls, the surface concave above it. L. 45, diam. 16 mill. 
Panama (to Gulf of California), Japan, China. 
P. nobilis, Hinds (fig. 39), and probably the unfigured P. albi- 
carinata, Sowb., are synonyms. The keels are lighter-colored 
or nearly white on the top, because denuded of epidermis by 
