136 ROCHESTER ACADEMY OF SCIENCE. [Jan. 12, 
about five in number, crossed by four spiral riblets on the body whorl 
which are cut into nodules giving the shell the appearance of a mul- 
berry ; the body whorl is encircled by ten spiral lines, two between each 
of the series of nodules; the nodules are further crossed by numerous 
microscopical lines which are only to be seen with the aid of a glass; 
the lateral outline of the whole shell is more or less fusiform ; the upper 
row of nodules gives the shell a shouldered appearance and the character 
is continued to the apex ; aperture ovate—oblong ; columella smooth 
but twisted atits base ; outer lip crenulated externally, and three toothed 
or denticled within, the denticles prolonged in long processes which ~ 
are continued to the apex; anterior canal a mere notch; posterior 
canal slightly developed ; umbilical region covered by the columella 
callous which is provided near the center with a narrow thread-like 
fold ; columella muscle scar placed near the posterior canal, square and 
chestnut colored ; aperture light-yellowish within, the inner edge of the 
outer lip stained with black. 
Alt. 30, diam. 18 mill. Aperture alt. 17 diam. 8 mill. Habitat: 
Japan. 
This species is closely related to both Purpura hippocastaneum, 
Lam., and P. ¢umulosa Reeve. From ippocastaneum it is separated 
by the tubercles being nearly obsolete and not spinose ; the whole shell 
smaller, more fusiform and of amore compact form. The spire is more 
conical and the whorls flatter than in the latter species. 
From ¢umulosa it is separated by its smaller size, its greater length 
as compared with its width, and by the presence of fee‘h within the outer 
Zip, a character mot possessed by éumudlosa. 
The species was first diagnosed from three specimens without 
locality, obtained from the Wagner Free Institute of Science of Phila- 
delphia, Penn. Sometime afterwards nine additional specimens were 
received from Japan, thus confirming the validity of the species and 
giving, fortunately, an authentic locality. I have twelve specimens of 
these species now before me and there is no variation from the above 
diagnosis. 
This species is well figured on pl. 46, f. 48 of the second volume 
of Tryon's Manual and is in that work considered to be a variety of 
tumulosus, but from a comparison of abundant material, seems to be 
distinct. 
Description of a new species of Astralium. 
ASTRALIUM (PoMAULAX) WARDII, sp. nov. Pl. 11, Fig. 1. 
Shell large, depressed conic, imperforate ; rufescent with a tinge 
of green ; whorls six, sloping, conical, obsoletely longitudinally wrinkled 
