183 Jaw and Lingual Dentition of Pulmonata. 
Binneya notabilis, J. G. Coop. 
Sta. Barbara Island, California. Mr. Henry Hemphill. 
Mr. Hemphill, who has contributed so largely to our 
knowledge of the land shells of the Pacific coast, has lately 
visited the Island of Sta. Barbara. Among the species found 
by him is Lenneya notabilis, which was originally described 
from thence by Dr. J. G. Cooper. Mr. Hemphill has kindly 
sent me living specimens, as well as others preserved in 
spirits. Iam, therefore, able to give a full generic descrip- 
tion, with a figure (pl. xvii, fig. 4) of the animal as it 
appears when half extended. I did not succeed in inducing 
it to protrude itself fully. The descriptions will supersede 
those formerly given by Mr. Bland and myself in L. & Fr. 
WY s Site ING Blog I 67. 
When received, the living examples were furnished with the 
peculiar epiphragm described by Dr. Cooper. On becoming 
again active, this epiphragm was left entire, still adhering to 
the surface on which the animal had formed it. In one indi- 
vidual I observed a second, inner epiphragm, simple, without 
the perpendicular walls. 
The Mexican genus Xanthonyx, is no doubt nearly allied 
to Linneya, but it does not appear from the figures of 
alcoholic specimens given by Messrs. Fischer and Crosse. 
(Moll. Mex. et Guat.) that the mantle of Xanthonyx is ex- 
tended anteriorly, and the position given by them of the 
respiratory office is different. Should future study of ,the 
living animal prove Xanthonyx identical with Linneya, the 
former will be considered as a synonyme of the latter. 
Dr. Pfeiffer (Mon. Hel. Viv. VII) suggests the identity 
of Binneya with Daudebardia, ignoring entirely the distinc- 
tion of the first divisions now recognized among the Geophila 
of presence or absence of a jaw, or of aculeate or quadrate 
teeth. By the modern arrangement these two genera are 
most widely separated. 
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