6 PHILINE. 
The squarish form and close, simple stri# are characteristic, 
though in some specimens the grooves are rather irregular and 
more spaced, and subobsolete on the base. Often there is an ap- 
pearance of two or three faint, more hyaline bands on the back. 
Occasionally the grooves of the outer surface project as slight raised 
threads inside the shell, as Lischke describes for P. sealpta Ad. The 
dentition according to Tapparone-Canefri, is after the formula 1-0-1, 
laterals denticulate. The gizzard-plates of specimens collected by 
Frederick Stearns are well calcified, two of them large, subtriangular, 
with a slight swelling on the middle of the long side, ends attenu- 
ated; the third is shorter, much narrower and fusiform. P. stria- 
tella T.-C. is undoubtedly synonymous; the type measured 14 x 113 
mill., exactly the dimensions of a specimen collected by Stearns. 
P. scateTa A. Adams. . Pl. 2, figs. 21, 22. 
Shell oblong ovate, white, thin, semipellucid ; subplicate length- 
wise, the folds irregular, engraved by wavy, transverse, distant im- 
pressed lines. Aperture ample; columellar margin thin, acute; lip 
regularly arched, rounded posteriorly. (Ad.). 
Bay of Yedo (Lischke) ; Tsu-Sima 30 fms.; Corea Strait, 46 fms. 
(Ad.). 
P. scalpta Av., Ann. Mag. N. H. (3), 1x, p. 160 (Feb., 1862).—-Lis- 
CHKE, J. M.-C. ii, p. 171; iii, p. 76, pl. 5, f. 15, 16.—ef. P. seulpta 
(sic), Tap.-Can., Viag. Magenta, p. 109. 
Bulla exarata Ph., or Haminea sinensis A. Ad., is the only species 
resembling this in sculpture; but the form is very different; the 
body-whorl in that species is large, and the outer lip narrowed pos- 
teriorly and greatly produced. (Ad.). 
Lischke has figured this species from specimens collected in the 
Bay of Yedo, and gives the following notes: These have much 
similarity to P. japonica in form, especially in the proportion of the 
convolute portion of the shell to the extremely wide aperture ; but 
the shell is thinner, narrower, equably and less strongly convex than 
in P. japonica; the spire is only superficially sunken, the columella 
without bordering groove, the outer lip not so much extended above. 
Especially different is the sculpture, which here consists of coarse, 
irregular growth-strize and more deeply cut, less wavy spiral grooves, 
more widely spaced, with broader smooth girdles between. These 
grooves are so deep in comparison with the thickness of the shell 
that they form fine raised lines on the interior of the aperture. 
