LYMN,£IMi OF NORTH AMERICA. 



a i r> 



Length. 



Breadth 



Aperture length. 



Brea 



dth. 





8.00 



5.10 



4.90 





mill. 



Cotype. 



8.50 



5.10 



5.10 







San Marcos, Texas 



13.00 



7.60 



6.70 







" " 



14.00 



9.00 



8.80 







a tt 



10.00 



6.75 



5.10 



2.50 



" 



Rockwell Co., Texas. 



12.00 



6.50 



5.50 



3.50 



" 



Albuquerque, N. M. 



11.00 



6.00 



6.00 



3.00 



" 



" " 



12.00 



7.00 



7.00 



4.00 



" 



Pacific Grove, Cal. 



11.00 



6.50 



6.50 



3.75 



" 



" " " 



9.00 



6.00 



6.00 



3.50 



" 



u a a 



Types : 



Location not ascertained; 



Cotypes, 



Academy of Natural 



Sciences of Philadelph 



La, five specimens 



, No. 



59604. 



Type Locality : 



Texas. 









Animal, Jaw, Radula and -Genitalia : Not examined. 



Distribution of 

 TECHELLA 1 



too 



Fig. r, 



Range (Figure 17) : Southern United States from Kansas, Mis- 

 souri and Colorado to southern Texas ; Alabama west to south- 

 ern California and northern Mexico. Techella is a race charac- 

 teristic of the Lower Mississippian, Rio Grandian and Coloradoan 

 regions. Its center of distribution would seem to be the great plains 

 region of Texas, where it is abundant and widely distributed. This 



