ZOOLOGY. 
373 
MONOCEROS LAPILLOIDBS. 
Purpura {Monoceros) lapilloides, Com, Journal Acad. Phil. VII, p. 20.1-, pi. 20, fig. 18, 1837. 
Ifonoceros punclahire, Gkay, in Zool. Voyage of Blosiom, 1839. — ^^Reeve C. I. pi. 1, f. 1, species 2, Jay Cat. No. 9065. 
Eah. — Bay of San Pedro, Dr. Trask ; Santa Barbara, Nuttall. 
Very different from the preceding species, as shown in our specimens, although Mr. Car- 
penter is inclined to consider them, with 31. wiideii Conr. as three varieties of the same. 
The published figures represent, it is true, what might be regarded as intermediate states of 
one species. 
COLUMBELLA GAUSAPATA. 
Columhella gausapata, Gould, Proceed. Bost. Soc. Nat. Hist., Ill, p. 170, June, 1850. — -Idem, U. S. Expl. Exped. 
Mol. & Shells, P.3G9.— Atlas, fig. 337, Carp. Rep. p. 341. 
Ilah. — Oregon, Go\ild ; Straits of de Fuca, Dr. Suckley. 
COLUMBELLA VALGA. 
Columhella valg a, Gould, Proceed. Bost. Soc. Ill, p. 169. — Idem, Exped. Shells, p. 269. — Atlas, pi. 6,338. 
Ilab. ■ — Straits of de Fuca, Dr. Suckley. 
The specimens sent of these two species were few and imperfect. 
Family NATICID^- 
NATICA LEWISIL 
Ncdica leimsii, Gould, in Proceedings Bost. Soc. II, p. 239, 1847.— Id. in U. S. Expl. Exped. Mollusca & Shells. 
Katica herculea, Middendoeff, Beitrage Mai. Ross, II, p. 97, pi. vii, f. 5-7, 1849. 
Natica herculea, Caspenter, Rep. to Brit. Assoc. 1836, p. 336. 
-Naiica Itivisii, Carpenter, Rep. to Brit. Assoc. 1836, p. 336. 
Hab.—Tuget Sound, Washington Territory, Dr. J. G. Cooper, Dr. G. Suckley; Bodega bay, Cal. , Middendorflf. 
This fine large species, the western analogue of our N. heros, varies considerably in form, 
being sometimes remarkably globose, and at others with the spire much produced. Mr. Car- 
penter has erred in assigning the priority to Middendorff 's name, his second volume, Avhich 
contains the shells, being dated two years after Dr. Gould's publication. The name of the first 
explorer and collector in Oregon merited such a perpetuation. 
"This large shell is abundant throughout the northwest sounds, and is collected in great 
numbers by the Lidians for food. Prom May to August it may be found crawling out above 
high water mark to deposit its eggs, which are enclosed in a curious structure of sand, shaped 
like a shallow bowl without a bottom, or still more like some glass lamp shades, and beautifully 
symmetrical, smooth, and perfect on both sides.'' — J, G. C. 
Family CERITHIADiE. 
POTAMIS PULLATUS. 
Potamis pullaius, Gould, in App. to Report of Explorations in California, vol. V, p. 333, pi. xi, f. 23, 24. 
Ceriihida' pullala, Carp. Rep. to Brit. Assoc. 1856, p. 325. 
Hah. — Upper California, Dr. Trask. 
This species, which occurs in several localities on the coast of California, appears to vary in 
the number of varices, relative length, and other minor particulars. 
