956 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. XXXIV, 
PHASIANELLA (TRICOLIA) COMPTA Gould, new variety PRODUCTA Dall. 
Phasianella compta GouLD, var., in Tryon, Man. Conech., X, 1888, p. 178, 
Wk xOccog TS (OY), 
This is distinctly more elevated and slender than the typical form 
of the species, and, while the color pattern is very similar, the color 
is, in all the specimens seen, decidedly darker and more olivaceous. 
Genus TEINOSTOMA A. Adams. 
Teinostoma A. ADAMS, Proc. Zool Soc., 1853, p. 183; sole ex. 7. politum 
ADAMS; H. and ADAMS, Gen. Rec. Moll., I, 1853, p. 122, pl. x11, fig. 9. 
TEINOSTOMA POLITUM Adams. 
St. Elena, Costa Rica, in 8 fathoms, Cuming;- La Paz, Gulf of 
California, on the beach with hermit crabs, L. Belding. 
This new locality extends the range of the type species a long dis- 
tance to the northward. 
Genus FISSURELLA Bruguieére. 
FISSURELLA VOLCANO Reeve, new variety CRUCIFERA Dall. 
Fissurella volcano REEVE, Conch. Icon. Fissurella, fig. 2, 1849.—PILsBRY. 
Man. Coneh.,. XII, 1890, pl: Lxi, figs: 16, 17, 18: 
A peculiar color-variety of this species has been sent to me from 
the Pacific coast a number of times in the hope that it was something 
hew, and it seems worthy of a varietal name. The shell is as usual, 
except in color, the ground color being a brownish gray, with darker 
macule, while from the apex start four broad white rays at right 
angles to each other, the posterior ray rapidly becoming V-shaped, 
the others remaining entire, each ray reaching four or five milli- 
meters in length, and the anterior and posterior rays being in the 
longer axis of the shell. 
Type.—Cat. No. 199171, U.S.N.M. 
A specimen from San Pedro, U. S$. National Museum, 199171, 
may serve as a type of the variety, which also occurs at San Diego 
and on the Lower California peninsula. 
Genus YOLDIA Moller. 
Section SCISSULA Dall, 
YOLDIA ENSIFERA, new variety PLENA Dall. 
This species in its typical form is abundantly distinguished from 
the Y. scissurata Dall (which is the common Arctic species usually 
named Y. /anceolata in collections), especially by its form and the 
prominent blades upon the posterior dorsal margins, which are three 
times the size of the same parts in the Arctic species. The peculiar 
