173 
vertice acutiusculo ; anfr. 5%/;, superi subplanati, ultimus 
spira minor, convexior, basi planiusculus, juxta columellam 
brevem excavatus, leviter callosus; apertura vix obliqua, 
late semiovalis: perist.. simplex, tenue, vix expansiusculum. 
— Diam. maj. 5, min. 42/,, alt. 41/, mill. 
Hab. Orizaba reipublicae mexicanae (Mohr.) 
16. Helicina raresulcata Pfr. (91a.) 
T. globoso-conica, solidula, confertissime striatula sul- 
cisque impressis distantibus superne sculpta, parum nitens, 
carneo-vel lutescenti-albida; spira exacte conica, vertice 
acuto; anfr. 6 planiusculi, ultimus spira brevior, peripheria 
obsolete subangulatus; columella brevis, basi extrorsum 
denticulata; callus columellaris tenuis; apertura obliqua, 
fere semicircularis; perist. acutum, breviter expansum. — 
Diam. maj. 6°%/,, min. 6, alt. 51/, mill. 
Habitat Veracruz. 
17. Helicina Behrendti Pfr. (101 a.) 
Taf. IUI. Fig. 14. 15. 
T. globoso-turbinata, solida, striatula, striis spiralibus 
confertissimis decussatula, parum nitens, albida; spira co- 
nica, vertice acutiusculo; anfr. 6 convexiuseuli, ultimus 
spiram subaequans, medio subangulatus, supra angulum 
excavatus; columella brevis, arcuata, rimata, callum emit- 
tens tenuem, circumscriptum; apertura fere diagonalis, sub- 
semicircularis;  perist. expansum, margine supero subflexuoso, 
basalı reflexo. — Diam. maj. 13, min. 111%, alt. 10 mill. 
Habitat Vera Cruz reipublicae mexicanae (Behrendt). 
18. Helicina Strebeli Pfr. (127 a.) 
T. globoso - conica, tenuiuscula, minutissime spiraliter 
striata, lutescens, rubro-unifasciata vel unicolor rubella ; 
spira elata, convexiusculo-conica, vertice acuto; anfr. 51/, 
convexiusculi, ultimus rotundatus, spira brevior; columella 
subrecedens, callum emittens tenuem ; apertura obliqua, 
subsemicircularis; perist. album, breviter expansum, — Diam. 
maj. 5, min. 43/,, alt. 41/, mill. 
