STREPTOSTYLA. 47 



S. BLANDIANA, Crosse and Fischer. PL 10, fig. 69. 



Moderately solid, smooth, with irregular impressed lines ; 

 suture subcrenulate ; light olivaceous brown, inconspicuously 

 dotted with yellowish, with irregular variciform olivaceous 

 chestnut strigations ; interior bluish white. Length, 28 mill. 



Cordova, Mexico. 



Strebel makes this a synonym of S. coniformis, Shutt., below. 



S. BINNEYANA, Crosse and Fischer. PI. 10, fig. 68. 



Moderatel}' solid, smooth, shining ; light olivaceous brown, 

 with irregular inconspicuous yellowish white spots, apex white, 

 interior bluish white. Length, 18'5 mill. 



Totonicapan, Guatemala. 

 S. CONIFORMIS, Shuttleworth. PI. 10, figs. 64, 74. 



Somewhat solid, polished, obsoletely striulate, suture sub- 

 channeled ; yellowish brown. Length, 20 mill. 



Cordova, Mexico. 



Strebel makes S. Pfeifferi, C. and F., and S. Blandiana, C. 

 and F., both synonyms of this species. 



S. PLICATULA, Strebel. PI. 10, fig. 70. 



A wider species than S. coniformis, with more convex body- 

 whorl, and more apparent striae at the sutures ; color somewhat 

 lighter. Length, 18 mill. 



Orizaba, Mexico. 

 S. PFEIFFERI, Crosse. PI. 10, fig. 66. 



Moderately solid, smooth, with linear, impressed suture; 

 orange-brown, with irregular darker strigations. 



Length, 19 mill. 



Mexico. 



Strebel makes this a synonym of S. coniformis, Shuttl. My 

 specimens of the two species are barely distinguishable in form 

 and coloring, the present being darker. It was described by 

 PfeifFer as Achatina streptostyla, and the specific name being 

 subsequently used in a generic sense, Crosse changed it, as 

 above. 



S. CRASSA, Strebel. PI. 10, fig. 71. 



Shell thick, opaque ; dark orange-brown, lighter at the base, 

 lip-margin moderately broad, yellowish ; longitudinally striate, 

 the striae ridge-like at the sutures. Length, 1 inch. . 



Coban, Guatemala. 



