Zoological Society. l-il 



1 1 . Cylindrella adamsiana, Pfr. C. testd vix rimatd, ob- 

 longo-pupiformi, tmncatd, nitidd, conferte striato-punctatd, albidd, 

 corned, irregulariter strigatd et vai-iegatd ; suturd lineari, albo- 

 crenulatd ; anfractibus (superst.) 8—9, plants, ultimo angustiore, 

 nan soluto, bast cristd compressd, obtusd munito ; aperturd vix 

 obliqud, subcirculari, ad cristam subcanaliculatd ; peristomate 

 alba, breviter expanso-rejlexo, superne interrupto. 



Long. 14l-15j, diam. 5 mill. Apert. 4^ mill, longa et lata. 

 Hab. St. Domingo (Salle). 



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

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

 nitidd, pallide fuscescente, vel rufo-fascd ; anfractibus (superst.) 

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

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

 obliqud, rhombeo-rotundatd, ad carinam distincte canaliculald ; 

 peristomate albo, nitido, undique reflexiusculo-expanso. 



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

 mill, longa et lata. 

 Hab. St. Domingo (SalU). 



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

 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. 2^ mill. Apert. 2 mill, longa et lata. 

 Hab. St. Domingo (Salle). 



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

 pupoided, solidd, confertim arcuato-striatd, rubetlo-fulvd ; spird 

 subcylindricd, sensim attenuatd, apice conicd; suturd profundd ; 

 anfractibus 8 vix convexis, penult imo lato, ultimo fascid lata vio- 

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

 tusd munito; aperturd circulari; peristomate incrassato, subre- 

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

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



Long. 27, diam. 9 mill. 



/3. 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, scepe viridi variegatd, suturd vel vertice purpureo ; 

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

 culis, rapide accrescent ibus, ultimo lato, subdepresso, antice vix 

 descendente; aperturd diagonali, subtriangulari-semiovali ; colu- 

 melld brevissimd, callum crassum, semicircularem, nitidum, album 

 emittente ; peristomate breviter expanso, margine basali subreflexo, 

 immediate in columellam continuato. Operculum tenue, submem- 

 branaceum, castaneum, margine cohimellari et nucleo pallidis. 



Diam. maj. 8, min. 6|, alt. .5^ mill. 



Hab. St. Domingo (Salle). 



