INTRODUCTION. 
"TERRESTRIAL MOLLUSCA. 
xiit 
Geographical Distribution of the Species in Mexico and Central America. 
GUATEMALA Honpuras 
Mexico. (with Tabasco, Chiapas, AND NICARAGUA. Costa Rica. Panama. 
and Yucatan). SALVADOR. 
| 
N.W.) Centr./S.W.| E. | Tabasco, | Yucatan. | N. | Centr.|S.W.] W. | E. Centr.| N.E.] W. |Centr.| E. | S.* | N. 
Chiapas. and H. and E (W.)) (£.) 
Motus). beryl PoP |? : ; aye ; 
Cyclophorus (Am- |< 
phicyclophorus). t 3 I | 2 l ! 
-(Cyrtotoma) .. 2 
Tomocyclus ...... + 2 3 
Choanopoma ...... 1] .. 1 a 2 
Chondropoma...... 1 3 1 6 1 - 5 
Diplommatina...... we fee fae a .. 1 
Helicina .......... 4 2 | 14 5 3 5 9 3 9 1] 3) 2.15 1 1 
Schasichila......... 1 2 1 1 
Proserpina ........ 1 3 
Strebelia.......... .. a .. | l 
Glandina ........ ) 6 13 | 24 4 2 8 2 4 2 1 1 3,7 1 1 
Salasiella ........ .. 1 1 1 a .. .. 1 
Streptostyla ...... 1 2 | 21 10 3 11) 4 2 3 1 1 | 7 6 1 
Omphalina ........ 3 9 2 2 a a .. . | dL 1 
Hyalinia.......... . 2) 3 - 2 2 1 . 1 2 | 6 + 
Guppya .......... 1 2 1 3 1 2 1 1 2 | 4 3 
Pseudohyalina - 3 2 1 1 1 2 
Patula et Microconus.| 2 .. .. 1 a a 1 1 a 1 
Thysanophora...... 1 1/3 1 1 2 _ 1 
Acanthinula ..... 2 2 1 1 1 1 1 
Vallonia .......... we fee .. a 1 
Trichodiscina ...... 3.) 2 2 1 / 2 1 1 1 1 1 1 
Averellia.......... .. .. a .. a .. 1 1 
Praticolella ...... 1 1 3 1 1 1 1 
Arionta? ....... 2 .. 1 1 
Pomatia .......... 1 
Tysinoé ..........- 1 7 1 2 1 2471 
Oxychona (costar } 2 l l 1 l l 9 
censiS)......-. 
Solaropsis ......-- .. a we fee . .. 1? .e 1 
Polygyra.......+-- 8 5 6 | 7 4 1 Le 1 
Strobila ........-- 1 1 
Labyrinthus ....-. a .. we fae .. a an e 1 1 2 1 
Ortalichus .......- 3 2 6 | 2 1 4 3 2 1 1 4 3 - Lf ek 2 
Otostomus .....--. 6 12 | 7 | 12 5 4 10 | 5 6 1 1 5 .. | 6 11 6] 4 
Bulimulus ........ 1 2 2 | 3 2 1 1 1 1 1 2 
Rhabdotus ........ .. 1 N.E 
Globulinus ........ 1 
Peronseus ......-. 1 
Leptomerus........ 1 | 2 3 1 2); 1 | 2 2 1 }1q71)1)i147 2 
Simpulopsis ...... we fee fee 1 1. 
Encalodium ...... 3 4/5 7 4 
Coelocentrum ...... 1 1 | 3 4 3 1 2 
* «§” corresponds to the W. (Pacific) slope and “N.” to the E. (Atlantic) slope of Central America, as a whole. 
