DESCRIPTION OF A NEW SPECIES OF HELIX, 
FROM CALIFORNIA, 
AND A NEW CHARACTERISTIC FORM OF CERTAIN AMERICAN COLIMACE. 
Heux Lecontu. Pl. XXX. Fig. 13. 
Testa plano-convera, inferné convera, papillosa, bruneo-corned, late umbilicata, tridentata, intus columna 
accessione instructd; anfractibus senis ; apertura subrotundata, constricta; labro hipatico, reflexo, bidentato ; 
columella uno-dentata. 
Shell plano-convex, convex below, papillose, brownish horn-colour, widely umbilicated, three toothed, furnished 
with an accessory column within; whorls six; aperture rounded, constricted; outer lip dull-brown, reflexed, two- 
toothed; columella one-toothed. 
Hab. St. Francisco, J. L. Le Conte, M. D. 
My cabinet and cabinet of Dr. Le Conte. 
Diam. .27, Length .15, of an inch. 
Remarks.—This is a very beautiful little species, which is allied in some of its charac- 
ters to hirsuta, Say, inflecta, Say, and Leai, Ward. It is about the size, outline and 
colour of the last, and the umbilicus is of the same size. It differs, however, in the teeth, 
the Leai having none on the outer lip; and in the papilla, which are smaller, rounder and 
closer in the Leai. The tooth on the columella is alike in both, being long, white, and 
incurved. Like the inflecta, it has two teeth on the outer lip, but these are much larger 
and whiter in the inflecta, which differs also in having the umbilicus closed, and in the 
papille being less distinct. In colour it is like a brown hirsuta, but it differs in being 
smaller, in being umbilicate, and in having two teeth on the outer lip, instead of a sinus, 
as in hirsuta, which has a much larger tooth on the columella, and a much more con- 
stricted aperture. 
Fig. 13, b represents the papille enlarged. 
Neither of the few specimens brought by Dr. Le Conte has the animal alive, which, of 
course, will remain yet to be described. The papille cover the whole surface. On the 
upper portion of the whorls they are close and elongate, passing into the form of striz. 
On the lower portion they are more rounded and beautifully displayed. It is very proba- 
ble that in some very perfect specimens, they may be found to have a hirsute character. 
I dedicate this species to Dr. Le Conte, whose enterprising researches in California 
have brought to our knowledge many new forms in other branches of natural history. 
