28 COLPODASPIS. 
is dated 1844, so that the volume was probably issued early in the 
latter year. Forbes’ very brief diagnosis has never been illustrated, 
and was presented at the August meeting of the British Associa- 
tion, the Report of which bears date of 1844 on the title page. 
While the absolute priority of Philippi’s name cannot, perhaps, be 
proven, it is at least probable; and the mere fact that his type was 
well illustrated in a standard work on malacology should give his 
name the preference. The animal is unknown. Monterosato sur- 
mises that it may not be an internal shell, on account of the 
peculiar nature of the outer layer. 
Genus? COLPODASPIS M. Sars, 1870. 
Coipodaspis Sars, Bidrag til Kundskab om Christianiafjordens 
Fauna, IJ, p. 74.—Garsrane, P. Z. 5. 1894, p. 664 (1895). 
“Shell internal or wholly covered by the mantle, bulloid, thin, 
subglobose-ovate, spire a little projecting, depressed, apex truncate, 
nucleus simple, not mamillar” (Sars). For characters of softs parts 
see below. 
The genus was founded upon a small mollusk of problematic 
relationship, which Fischer has suggested may be a young Philine, 
which disposition of it was followed on preceding pages (2, 17) of 
this work. Garstang’s work upon a specimen recently captured by 
him shows it to possess features notably different from Philine, and 
indeed from any Cephalaspidia; and his paper has, therefore, been 
incorporated herein. 
C. pusILLA Sars. PI. 21, figs. 1-5; pl. 9, fig. 9. 
Shell rimate, very thin, but rigid, hyaline, becoming whitish when 
dried, subglobose or ovate, smooth; whorls 3, the last one large; 
spire very short and obtuse; aperture large, oval or subpyriform ; 
lip acute, arched, not impressed, produced and rounded in front; 
columella nearly straight, about half as long as the shell. 
Alt. 1%, diam. 1 mill. 
Drébak, Norway, 70-80 fms. (M. Sars, Aug., 1864); 20 fms. 
(Sars, June, 1865); Horten, 14-20 fms. (G. O. Sars); near Ply- 
mouth, England, 15 fms. (Garstang, Feb., 1894). 
Mr. Garstang’s description is as follows: 
This Plymouth individual was one-eighth of an inch (3°125 mm.) 
in length. In color it was snow-white, speckled with opaque white 
spots. When the animal/was inverted, a position which it frequently 
