171 Jaw and Lingual Dentition of Pulmonata. 
Patula alternata, Say. 
I have also examined and here figure (pl. xvii, fig. 15), the genitalia 
of the heavily ribbed form of P. alcernata, from Eastern Tennessee (Mr. 
A. G. Wetherby). It agrees with the typical P. alternata, and also in 
dentition. In both forms I found the duct of the genital bladder much 
longer than is figured by Leidy, in the Terrestrial Mollusks U. S. In P. 
Cumberlandiana also it is long, thus agreeing with alternata. 
Patula Huahinensis, Pfr. 
Huahine Isl., Mr. A. Garrett. 
Lingual membrane, with 18-1-—18 teeth, of which about six are later- 
als. The type of dentition is about the same as in Endodonta incerta, 
herewith described. The marginals are, however, different, the two cut- 
ting points being bifid, the base of attachment low and wide. (Plate 
xvii, fig. 17). 3 
Endodonta incerta, Mousson. 
Huahine Island, Mr. A. Garrett. 
I am indebted to Mr. Garrett, for the identification of this 
and all the Huahine species herewith described. 
I regret not succeeding in obtaining the jaw of any species of this 
group, the more because some doubt about its existence has been ex- 
pressed. It is, however, probable that it will be found, as no agnathous 
genus has yet been noticed with the quadrate marginal teeth, which charac- 
terize EH. incerta, and also #. tumuloides, Garrett (Proc. Ac. Nat. Sc. 
Phila., 1875, p. 248, pl. xxi, fig. 6). 
Lingual membrane (pl. xvii, fig. 16) with 11-1-11 teeth, of which 4 are 
perfect laterals. The marginals (of which the last is shown in the figure) 
are but a simple modification of the laterals. They differ from those of 
tumuloides, unless, indeed, I have, from their exceeding minuteness, failed 
rightly to interpret them. 
Helix Ingersolli, Bland (Microphysa). 
-Mr. Ernest Ingersoll: U.S. Survey of Territories, 1874. 
Jaw low, wide, slightly arcuate, ends slightly attenuated: whole an- 
terior surface with about 22 broad, flat, slightly separated ribs, whose 
ends denticulate either margin. 
This form of jaw is unusual among the Helicine. It is somewhat like 
that of H. Lansingi (see Phila. Pr., 1875, p. 169). 
NOVEMBER, 1875. 13 ANN. Lyc. Nat. HistT., VOL. XI. 
