252 



14. Description of Fifty-four New Species of Helicea, 



FROM the Collection of Hugh Cuming, Esq. 



By Dr. L. Pfeiffer. 



1. Streptaxis discus, Pfr. S. testd late umhilicatd, discoided, 

 subregulari, leevigatd, albido-hyalind ; spird plana, vertice promi- 

 nulo ; anfractibus Q\, vix convexiuscvlis, irregidariter varicosis, 

 ultimo depresso, subtus deviante, pone aperturam rohtndato, de- 

 flea.0 ; aperturd subhorizontaU, transverse sinuaio-auriformi, plied 

 obliqud parietali et dentibus peristomatis coarctatd ; peristomate 

 Candida, rejlexo, margine supero impresso, obsolete dentato, dextro 

 dente distinctiore munito, basi intus transverse calloso. 



Diam. raaj. 14, min. 11, alt. 4J mill. 

 Hub. ? 



2. Helix Richmondiana, Pfr. H. testd imperforatd, trochi- 

 formi, solidd, striatd et irregulariter granulatd, nitidd, castaned; 

 spird castaned, sursum pallidiore, apice obtnsiusculd ; anfractibus 

 b\,planis, sensim accrescentibiis, ultimo compresse carinato, antice 

 vix dejlexiusculo ; basi piano ; aperturd perobliqud, subrhombed, 

 ad carinam rostratd; intus livido-opalind ; peristomate nigro- 



fusco, subincrassato, marginibus callo tenuijunctis, supero expanse, 



basali dilatato, rejlexo. 

 Diam. maj. 54, miii. 47, alt. 30 mill. 

 Hah. ad Richmond River, Australia. 



3. Helix semidecussata, Pfr. H. testd perforatd, conoided, 

 solidd, superne minute decussatd, opacd, unicolore rufo-fuscd ; spird 

 conoided, acutiusculd ; anfractibus! , vix convexiusculis, ultimo cari- 

 nato, non descendente, basi convexo; aperturd diagonali, angulato- 

 lunari ; peristomate simplice, recto, obtuso, margine columellari 

 superne brevissime rejlexiusculo. 



Diam. maj. 33, miii. 30, alt. 18 mill. 

 Hab. in insula Mauritii. 



4. Helix Souleyetiana, Pfr. H. testd perforatd, conoideo- 

 depressd, soliduld, rugoso-striatd, superne inter strias sub lente 

 confertissime undulato-lineatd, pallide fulvd ; spird breviter co- 

 noided, obtusiusculd ; anfractibus 6 subplanis, lente accrescentibus, 

 ultimo acute carinato, infra carinam castaneo-fasciato, convexo, 

 medio profundi excavato ; aperturd perobliqud, angulato-lunari ; 

 peristomate simplice, marginibus subparallelis , dextro antrorsum 

 subarcuato, columellari subincrassato, superne brevissime rejlexo. 



Diam. maj. 52, min. 36, alt. 18 mill. 

 Hab. ? 



5. Helix radians, Pfr. H. testd imperforatd, depressd, tenui, 

 l(evigatd, nitidissimd, jiellucidd, corned, strigis albidis irj'egulariter 

 radiatd ; spird brevissimd, convexd ; suturd impressd, submargi- 

 natd ; anfractibus A\, planiusculis, ultimo non descendente, superne 



