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412 ALCADIA. 
15. A. hispida Pfr. 
T. globuloso-depressa, tenuis, rufa, pilis brevibus confer- 
tis hispida ; spira vix elevata, subacuminata; anfr. 4'/, con- 
vexiusculi, sensim accerescentes, ultimus basi convexiusculus; 
apertura parum obliqua, semiovalis; columella brevissima, basi 
in dentem recurvatum, liberum terminata; perist. subsimplex, 
vix expansiusculum, intus album, margine supero sinuoso, ba- 
sali a dente columellari incisura acuta separato; callus basalis 
tenuissimus. — Operc. submembranaceum, corneum. — Diam. 
maj. 6, min. 5'/, alt. 4 mill. (Coll. Nr. 86.) 
Helicina hispida Pfr. in Wiegm. Arch. f. Naturg. 1839. L. p. 355. 
I — Som, 'Thes.N. 106. p. 4. t. 3. £ 112. 119. €) 
— — . Chemn. cd. II. N. 32. p. 30. t. 3. f. 19—23. 
— . dentigera Orb. Moll. Cub. I. p. 252. t. 21. f. 4—6. **) 
— iIS07. lhes. N. 15. p. 4.5. 9. $2 107. 2108. 552) 
Habitat in insula. Cuba, frequentissima circa. Matanzas! 
16. AÀ. münimnma Orbigmny. 
T. depressa, striatula, pilis brevissimis deciduis hispidula, 
fusco-rubella; spira brevis, conoidea; anfr. 4'/, vix convexius- 
culi, sensim accrescentes, ultimus subdepressus, basi subpla- 
nus; apertura obliqua, semiovalis; columella brevis, subverti- 
calis, basi in dentem brevem, obtusum terminata; perist. simplex, 
vix expansiuseulum , margine basali substricto, a dente colu- 
mellari incisura levi separato; callus basalis tenuissimus. — 
brown; epidermis extremely thin, microscopically hirsute or chagrined; spire 
a little elevated and eonvex; whorls nearly four and one-half, scarcely con- 
vex; aperture large; labrum thin, sharp, moderately expanded and reflected, 
with a deep curved incision below the columella similar to that of 7. pal. 
liata: the produced columella is strongly margined on the inner side. — 
Mean divergenee about 1359; length 0,16; greatest breadth 0,29; least 
breadth 0,23 inch. (Adams l. c.) 
*) T. globuloso-depressa, tenui, rufa, hispida; anfr. 4 convexiusculis ; 
callo columellari tenui; angulo columellari dentem efformante; labro cras- 
siusculo, juxta dextram acute inciso; apertura semilunari. (Sow. l. c.) 
**) TT. rotundo-depressa, laevigata, alba, fascia cincta; spira brevi, 
obtusa, inflata; anfr. 5 planis; apertura semilunari; labro crasso, reflexo; 
columella inerassata; aperturae angulo columellari dentato, emarginato. — 
Diam. 7, alt. 5 mill. — Cette espece assez voisine de Z4. rotunda, s'en 
distingue par sa spire moins élevée, plus obtuse, par son péristome plus 
réfléchi et par la forte dent de la partie columellaire. (Orb. l. c.) 
***) T. clobosa sub-depressa, alba, labio externo paululum reflexo prope 
columellam emarginato; labio interno tenui; columella producta, acuta, 
dentem efformante, (Sow. l. c.) 
