54 
form of the shell. On this account I am unwilling to constitute it 
a new genus, but propose to call it a sub-genus under the name of 
Neaplysia. San Pedro, Cal., July 25, 1893, on beach after a heavy 
blow; 3 specimens. Stomach was full of large fragments of alge. 
Kept in water for some time, they were very slow and uninterest- 
ing in movements, showing no evidence of any means of defense, 
except in the exudation of a beautiful purple fluid from the mantle 
when handled.’’—Cp. 
Monterey to Lower California. 
647 Anomalocardia subrugosa Sowerby. 
West coast, latitude 26 degrees?, to Panama, 
648 Argonauta hians Solander. 
South Atlantic ocean—in Pacific north to China. 
649 Argonauta pacifica Dall. 
Atlantic? and Pacific oceans. Catalina Isl. 
650 Ariolimax andersoni W. G. Binney. 
Alameda county, California (A. niger?). 
651 Ariolimax californicus J. G. Cooper. 
Sierra Nevada, latitude 39 aegrees, to coast of California.— 
San Mateo Co., Cal. 
652 Ariolimax columbianus Gould. 
Vancouver Island to San Francisco bay, Cal.—Santa Cruz 
Island (var. stramineus). 
Synonymy:—Cockerell’s forms typicus, maculatus, niger and 
ealifornicus maculatus; and Hemphill’s var. stramineus (fide 
Pilsbry). 
653 Ariolimax hemphilli W. G. Binney. 
Alameda county, Cal. 
654 Ariolimax hecoxi Wetherby. 
Monterey county, California. 
‘‘Ariolimax columbiana, var. hecoxi.—I have received, at dif- 
ferent times, numerous specimens, at every stage of growth, of 
a large Ariolimax, found at Santa Cruz, California, by Miss Laura 
J. F. Hecox. The class in the University dissected numerous indi- 
viduals, working out the genitalia in detail. The most casual ex- 
amination showed that these organs did not agree with any of 
Mr. Binney’s figures, from dissection of various west coast spe- 
cies, and Mr. Binney, after a careful examination of the specimens, 
at different ages, with a study of the genitalia, unhesitatingly 
pronounces it a new species. For the present, however, I prefer 
to give it only the varietal name above assigned, until I have the 
opportunity of making a careful study of undoubted specimens of 
A. columbiana, and a systematic comparison of these parts. It 
may be the form referred to by Dr. Cooper as possibly new, in his 
review of Mr. Binney’s Terrestrial Mollusks, vol. v., Proc. Phil. 
pst me 9.”,—-A. G. Wetherby, Cincinnati society of natural his- 
ory, J. 
655 Assiminea californica J. G. Cooper. 
Northern California. San Pedro. 
656 Assiminea subrotundata Carpenter. 
Vancouver Island to San Francisco bay. Neah bay, Wash. 
Monterey, Cal. 
