50 AGLAJA. 
expanded in front, so as to project over the foot and mouth, truncate 
behind. Mantle small, entirely concealing the shell, at its posterior 
end 2 lobed and with a large gaping orifice. Foot large with ample 
side-lobes, which are folded up to the sides of the head-dise and 
mantle, leaving, however, the back exposed. Shell quite internal, 
triangular, spire minute, inner lip with a small spoon-shaped pro- 
jection. Branchie minute, situated far back on the right side under 
the mantle. Gizzard very large and muscular, without calcareous 
plates. Odontophore apparently wanting. I assume that the 
proper position of this animal is with the Philinide, with which it 
agrees in most of its characters. It differs, however, in having no 
odontophore, and in the gizzard not being strengthened with calcare, 
ous plates. Aglaia (of Renier), appears to be its nearest ally ; but Iam 
unable to place it in that genus, as it differs from the species figured 
in Adams’ “ Genera” in being much more elongated, in the cephalic 
disc being larger and projecting beyond the foot, in the branchiz 
being smaller and always concealed by the mantle, and in the side- 
lobes of the foot being closely appressed to the side of the animal, 
and not spreading. 
Auckland Harbor and near Dunedin, New Zealand, in tide pools. 
Melanochlamys cylindrica CHEESEMAN, Trans. N. Z. Inst. xiii, p. 
224 (1881). 
A. eicLioLut Tapparone-Canefri. PI. 1, fig. 6. 
Body oblong, as much as 32 mill. long, 12 mill. wide; head-shield 
ovate-oblong, large, more or less bilobate behind; posterior body 
smaller, subquadrate, deeply bilobed behind ; side margins (para- 
podial lobes) free, very narrowly edged with brown. Foot ovate, 
large, wider than dorsal lobes. Color of specimens preserved in 
alcohol buff-white, irregularly reticulated with brown and ashy, the 
head-shield having a median longitudinal pale line. Shell internal, 
delicate, vitreous, very transparent, resembling that of D. carnosum 
in form. 
Japan. 
Aglaia giglioli T.-C., Zool. Viag. Magenta, p. 110, pl. 1, f. 18 
(1874). 
A. NUTTALLI Pisbry, n.sp. PI. 6, figs. 37, 38. 
Alcoholic specimen uniform black-brown above, sole the same 
color, but with faintly discernable sparse light maculation. Head- 
