NATURAL SCIENCES OF PHILADELPHIA. 173 
species, leaving the question of subgeneric division to the future, 
and to abler hands. 
As some confusion exists in regard to the specimens furnishing 
the descriptions and figures published in this country, I have 
taken pains to be sure of the specific identity of each specimen 
now beforeme. 
The L. maximus was collected in Newport, R. I., by my friend, 
Mr. Sam. Powel. It is the same individual figured on p. 408 of 
my edition of Gould’s Invertebrata of Massachusetts. The ex- 
ternal markings of the animal are conclusive proofs of its identity 
with the European species. I have, however, made it still more 
certain by examining the genitalia, which I find agree with those 
of L. maximus, figured by Lehmann (Lebenden Schnecken, etc.). 
I find the dentition agrees also with the figures given by Heyne- 
mann (Malak. Blatt. X.), Lehmann (1. c¢.), and Goldfuss (Verhl. 
Naturh. Vereins der Preuss. Rheinl., etc.). 
The LZ. flavus was collected in a cellar in Burlington, N. J. It 
not only agrees with the figure in the ‘‘ Terrestrial Mollusks” as 
far as its outward markings are concerned, but I find also its 
genitalia to agree with Dr. Leidy’s figure in the same work, and 
also with the figure given by Moquin-Tandon (Moll. Fr.). Its 
dentition agrees with the figures of Heynemann and Semper 
(Arch.. Phil.). 
The L. agrestis was collected in a garden in Burlington, N. J. 
This species I have also found to agree with the figures of the 
external animal and genitalia given in the * Terrestrial Mollusks,” 
-as well as with Moquin-Tandon’s (Moll. Terr. et Fluv. de la 
France) figure of the genitalia, and Heynemann’s and Leh- 
mann’s figure of the dentition; also with the figure of the geni- 
talia given by Schmidt and Lehmann. ! 
The Limax campestris examined was collected in the country 
near Burlington, N. J., by my friend, A. Ten Eyck Lansing. It 
agrees with the description and figures in the * Terrestrial Mol- 
lusks,” not only as to its external characters, but in its genitalia. 
I will here mention that its dentition does not agree with that of 
L. Weinlandi, Heynemann (I. ¢. p. 212), supposed by that author 
to be the same species. 
The Limax Hewstoni examined is a typical specimen, given by 
Dr. J. G. Cooper to the State Collection of California. It was 
labelled by him. There can be no doubt, therefore, of its identity. 
