149 



obliqud, suhcirculari, ad cristam subcanaliculatd ; peristomate 

 albo, breviter expanso-rejlexo, superne interrupto. 



Long. 14-1 5 J, diam. 5 mill. Apert. 4^ mill, longa et lata. 



Hub. St. Domingo (Salle). 



12. Cylindrella salleana, Pfr. C. testd non rimatd, cylin- 

 draced, gracili, truncatd, oblique confertissime costulato-striatd, 

 nitidd, pallidefuscescente, vel rufo-fuscd ; anfractibus {super st.) 

 17-18, vix convexiusculis, ultimo angustiore, basi carind com- 

 pressd, acutd munito, antrorsum breviter porrecto ; aperturd sub- 

 obliqud, rhombeo-rotundatd, ad carinam distincte canaliculatd ; 

 peristomate albo, nitido, undique reflexiusculo-expanso. 



Long. 27, diam. (prope basin) 5 mill. Apert. cum peristomate 4f 

 mill, longa et lata. 



Hab. St. Domingo {Salle). 



13. Cylindrella GOULDiANA, Pfr. C. testd vix subrimatd.tur- 

 ritd, truncatd, confertissime costulato-striatd, sericed, pallide cor- 

 ned; suturd impressd, subdenticulatd ; anfractibus (superst.) 9, 

 convexiusculis, ultimo soluto, antrorsum breviter descendente, basi 

 subcompresso ; aperturd subobliqud, fere circulari, latere dextro 

 subangulatd ; peristomate albo, undique breviter expanso. 



Long. 10, diam. 2i mill. Apert. 2 mill, longa et lata. 

 Hab. St. Domingo {SalU). 



14. Cyclostoma orbignyi, Pfr. C. testd subperforatd, elongato- 

 pupoided, solidd, confertim arcuato-striatd, rube/lo-fulvd ; spird 

 subcylindricd, sensim attenuatd, apice conicd ; suturd profundd ; 

 anfractibus 8 vix convexis, penultimo lato, ultimo fascid latd vio- 

 laced, antrorsum evanescente, ornato, basi cristd compressd, ob- 

 tusd munito ; apei-turd circulari; peristomate incrassato, subre- 

 flexo, superne appresso, infra cristam anfractibus penult, subex- 

 ciso. Operculum tenue, albidum, extus concavum, arctispirum. 



Long. 27, diam. 9 mill. 



jS. Unicolor virenti-fulvum. 



y. Minus, interdum omnino violaceum, anfractibus convexioribus. 



Hab. St. Domingo {Salle). 



15. Helicina versicolor, Pfr. H. testd depressd, tenui, lavi- 

 gatd, citrind, sape viridi variegatd, suturd vel vertice purpurea ; 

 spird pariim elevatd, obsolete papillatd ; anfractibus 4^, planius- 

 culis, rapide accrescentibus, ultimo lato, subdepresso, antice vix 

 descendente; aperturd diagonali, subtriangulari-semiovali ; colu- 

 melld brevissimd, callum crassum, semicircular em, nitidum, album 

 emittente ; peristomate breviter expanso, margine basali subrefiexo, 

 immediate in columellam continuato. Operculum tenue, submem- 

 branaceum, castaneum, margine columellari et nucleo pallidis. 



Diam. maj. 8, min. 6f, alt, i>\ mill. 

 Hab. St. Domingo {SalU). 



16. Helicina dominicensis, Pfr. H. testd globoso-conicd, so- 

 liduld, concentric^ confertim striatd, pariim nitidd, albidd, luteo- 



