140 HELIX §. 33. 



735. H. connectens Adams. •{■ 



T. imperforata, hemispherica, alba, epidermide cornea 

 vestita, striis incrementi rudiusculis scuipta; apex obtusissi- 

 mus; spira regulariter convexa; anfr. 9 angustissimi, modice 

 convexi, uilimus subtus convexiusculus, regione umbilicali con- 

 caviuscula; apertura fere Iransversa, angustiuscula, lunaris, la- 

 mella basali valde prominente, acuta, valida, prolunda munita; 

 labrum tenue, acutum; labium in adullis incrassatun) ; colu- 

 mella peroblique producta. — Diverg. media ilO°; alt. 0,68, 

 lat. max. 1, min. 0,95". (Ad.) 



Helix connectens Adams Contrib. to Conchol. N. 7. p. 10S. 



Habitat in insula Jamaica. 



736. H. torrefacta Adams. 



T. imperforata, conico-globosa , solidula, sub epidermide 

 tenuissima, lulescente albida; spira convexo-conica, apice acu- 

 tiuscula; sulura impressa; anfr. 9 parum convexi, superiores 

 eleganter striati, inferiores sublaevigati, ullimus peripheria 

 subangulatus, basi medio vix impressus; columella fere recte 

 descendens, subtorto-incrassata; apcrtura lata, depresso-Iuna- 

 ris, lamella basali valida munita; perist. sim})Iex, acutum. — 

 Diam raaj. 16, min. 15, alt. 15 mill. (Coll. Nr. 367.) 



Helix torrefacta Adams Contrib. to Conchol. N. 2. p. 31. 

 — — Chemn. ed. II. Helix N. 789. t. 126. f. 14. 



Habitat in insula Jamaica. 



737. H. pila Adams. 



T. imperforata, subglobosa, tenuis, laevigata (sub lente 

 minutissime decussatula), diaphana, albida; spira convexo- 

 conica, acutiuscula; sutura profunda; anfr. 6V3 convexi, ul- 

 timus globosus, basi non impressus; columella brevis, sub- 

 verticalis, dentato-dilalata; apertura lata, lunaris, lamina acute 

 elevata infra medium anfractus ultimi partita; perist. simplex, 



regnlar striae of growth, and somelimes on the lower side of the iast 

 wliorl wilh inequidistant unequal concentric sfriae: spire very mucli ele- 

 valed, with very convex outlines: whorls 7 '/j , quite convex, with a 

 well imprcssed sulure; last whorl very convex benealh to the centre, 

 without any indentafion in the umbilieal region: aperfure obli^juely lunate, 

 wider below fhan above; wilhin, a litfle below fhe middle of fhe right 

 side, is a long lauiellar tootli, commencing abrupfly in flie boffom of 

 the aperture, and gradually diminishing in heigth to its terniination a 

 little within the margin; with a wide irregular toofh on Ihe end of the 

 columella: labruni sharp: umbilicus wanting. — Greatest breadth .78 

 inch; least breadfh .73 inch; heiglit .9 inch. (Adams.) 



