244 PROCEEDINGS OF THE ACADEMY OF 
‘Hevrx AyrestAna, Newcomb. (Arionta.) 
San Miguel Island, California. Mr. Henry Harford. 
Animal long and slender, smoky-white, covered with white 
coarse granulations running longitudinally down the back, one 
line of granulations very prominent and central, bordered on 
either side with a deep furrow. Also oblique lines of granulations 
running down the sides of the foot. Foot dirty-white below. Tail 
short, broad, pointed. Some individuals are darker, with a purplish 
tinge. | 
Jaw and lingual membrane as usual in the subgenus,’ the former 
with six ribs. > 
HELIX RUFICINCTA, Newcomb. (Arionta.) 
Catalina Island, California. Mr. Henry Hemphill. 
Jaw more like the type common in Mesodon than in Arionia, 2. e., 
arcuate rather than arched, margins rather pectinated than scal- 
loped by the ends of the ribs, which are about ten in number. 
Lingual membrane as usual in the subgenus." 
Hewrx KELLETTI, Forbes. (Arionta.) 
Catalina Island, California... Mr. Henry Hemphill. 
Jaw and lingual membrane as usual in the subgenus,! the former 
with about six ribs. 
HeLix NEwWBERRYANA, W.G. Binney. (Glyptostoma.) See our plate L., 
fic. 12, 3. 
San Diego, California. Mr. Henry Hemphill. 
This species belongs to no described section or subgenus, we 
propose for it, therefore, the name Glyptostoma, (yavxzos, oroua), 
from the peculiar sculptured lines which revolve upon the parietal 
wall. 
GLYPTOSTOMA, subgen. nov. 
Testa late umbilicata, depressa, ruguloso-striata, solida, anfractus 6, 
ultimus depresso-globosus, antice non descendens ; apertura obliqua, sub- 
circularis ; peristoma simplex, acutum, intus incrassatum, marginibus 
approximatis, columellari brevi, vix reflexiusculo. 
Maxilla arcuata, costis validis distantibus (circa 16) exarata; margines 
valde dentati.? 
Lamina lingualis ut in Helice videtur; dentes marginales subquadrati. 
° 
1 See note 2 to p. 243. 
2 See our plate I., fig. 1, and the explanation of the plate. 
