177 Jaw and Lingual Dentition of Pulmonata. 
Species. It is characterized by its extreme length, as would be expected 
from the form of the shell. The vagina (v.) is extremely long and narrow. 
The genital bladder (g. b.) is elongated oval, on a short, slender duct. 
The penis-sac (p. s.) is very long, attenuated to a point above, where the ° 
retractor muscle is inserted. 
The digestive system is also very much elongated. The cesophagus 
especially is excessively long, as are also the ducts to the salivary glands. 
This species is extremely common all over St. Augustine 
and its vicinity. The large form I found almost restricted 
to the moat of the old fort, especially at the foot of the main 
western wall. 
Helix Febigeri, Bland (Polygyra). 
Near Mobile, Alabama. Dr. E. R. Showalter. 
Genitalia as in HZ. septemvolva (see pl. xii, fig. 6). 
Helix cereolus, Muhlf. (Polygyra). 
For this and many species of Key West I am indebted to 
the kindness of Mr. W. W. Calkins. 
Jaw as usual in the subgenus (I. c.), with over 14 ribs. 
Lingual membrane as usual (pl. xvi, fig. C). Teeth 22-1-22, with 9 
_ laterals, the inner cutting point of the 10th tooth being bifid. Marginals 
with base of attachment low, wide, with one inner, long, oblique, bifid 
cutting point, and one short, bluntly bifid, small, outer cutting point. 
Genitalia as in last species. 
Helix Carpenteriana, Bland (Polygyra). 
Key West. Mr. W. W. Calkins. 
Jaw as usual in the subgenus: (1. c.): ribs over 12. 
Lingual membrane as usual (pl. xiii, fig. K). Teeth 22-1-22. The 
character of the various teeth is shown in the figures. There are 9 laterals, 
the 10th tooth having a bifid inner cutting point. 
I can now state that H. cereolus, Carpenteriana, septenvolva, volvoxis, 
and Febigeri have the same dentition. In all, the splitting of the inner 
cutting point commences at the tenth tooth. 
Genitalia as in H. septemvolva described herewith. 
