140 HELIX §. 33. 



735. H. connectens Adams. •[* 



T. imperforata, hemispherica, alba, epidermide cornea 

 vestita, striis incrementi rudiusculis sculpta; apex obtusissi- 

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

 convexi, uUimus subtus convexiusculus, regione umbilicali con- 

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

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

 labrum tenue, acutum; labium in adultis incrassatum; colu- 

 mella peroblique producta. — Diverg. media 110°; alt. 0,68, 

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



Helix connectens Adams Contiib. to Gonchol. N. 7. p. 105. 

 Habitat in insula Jamaica. 



736. H. torrefacta Adams. 



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

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

 liuscula; sutura impressa; anfr. 9 parum convexi, superiores 

 eleganter striati, inferiores sublaevigati, ultimus peripheria 

 subangulatus, basi medio vix impressus; columella fere recte 

 descendens, subtorto-incrassala; apertura lata, depresso-luna- 

 ris, lamella basali valida munita; perist. simplex, acutum. — 

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



, Helix torrefacta Adams Gontnb. to Gonchol. N. 2. p. 31. 

 — — Chemn. ed. II. Hellx 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. 67^ convexi, ul- 

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

 verlicalis, dentato-dilatata; apertura lata, lunaris, lamina acute 

 elevata infra medium anfractus ultimi partita; perist. simplex, 



regular striae of growth, and sometimes on the lower side of the last 

 whorl with inequidistant unequal concentric sfriae: spire very much eie- 

 vated, with very convex outlines: whorls Tyj, quite convex, with a 

 well impressed sutnre ; last whorl very convex beneath to the centre, 

 without any indentation in the umbilical region: aperture obliquely lunale, 

 wider below than above; wilhin, a little below the middle of the right 

 side, is a long lamellar tooth, conimencing abruptly in the bottom of 

 the aperture, and gradually diminisliing in heiglh to its termination a 

 little wilhin the margin; with a wide irregular tooth on the end of Ihe 

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

 inch; least breadlh .73 inch ; height .9 inch. (Adams.) 



