256 PROCEEDINGS OF THE ACADEMY OF [Mch., 
Up to this time, no carinate or even strongly angular species have been 
found. Such uniformity in the shell is unusual in a Helicid genus. 
The characters of the soft anatomy originally attributed to the genus 
have proved to prevail in the more extensive material now examined, 
except that in one species the flagellum is obsolete. The penis was 
incorrectly described in my original diagnosis, through my failure to 
open it, and thus ascertain the exact limits of penis and epiphallus. 
Measurements of the Genitalia in Millimeters. 
Free epi- u- 
Piaié Penis-| phallus | Fla- | Va- Cg seum 
Species papilla| and fla- \gellum | gina |" a ng num- 
gellum ber 
S. hachitana, 9 4 a 05 | 10:5 29 86,496 
Florida Mountains 
S. h. ashmuni, it 6 7 0.7 9 29 79,409 
Purtyman’s ranch 
S. h. ashmuni, 1 PE 6.7 0.7 8 35 79,409 
Purtyman’s ranch 
S. h. bowiensis, 10 3 8.5 OG" | 10). 9 eee 86,497 
Bowie 
S. rowelli, 5 2 5.5 |vesti-| 5.3 20 83,273 
Sanford’s gial 
S. rowelli var. CRAM FRE I oe Want-| 4.55) 83,268 
Patagonia Mountains ing 
S. granulatissima, 7.3 4.8 6 On| 2 24-25 | 83,257 
Huachuca Mountains 
S. virilis, 34 29 23 1 16 24 79,622 
Chiricahua Mountains 
S. v. circumstriatus yaa i Bee 21 oy Aig U0 a ae 2 87,026 
Helix remondi Tryon belongs to another genus, still uncharacterized 
anatomically, of the Belogona Euadenia. 
A living specimen sent me 
by mail some years ago was crushed en route, partially decayed and 
dried hard when it reached me. I soaked up the remains, and found 
that the tail has a strong serrate keel above; there is a slender, cylin- 
dric-fusiform penis, but the rest of the genitalia were impossible to 
make out. The radula does not differ materially from the Epiphrag- 
mophora type. In Mexico, the genus Lysinoe and at least one species 
of Leptarionta have the same extremely unusual structure of the tail. 
