60 



3. St. Lindsleyanum Adams. 



T. perforata, liris distinctis, confertis (in parte su- 

 pera anfractus Ultimi inaequalibus) spiralibus sculpta, 

 opaca, fusculo-albidaj spira conica, acuta; anfr. 5 vix 

 convexiusculi , ultimus rotundatus, basi planiusculus; 

 apertura axi parallela, semiovalis; perist. simplex, conti- 

 nuum, margine dextro non dilatato, basali in lamellam 

 acutam, ad perforationem subascendentem continuato. — 

 Diam. maj. 3, min. 2V3) alt. 2V2 niill. 



Stoastoma Lindsleyanum Adams Monogr. p. 12 

 Habitat in insula Jamaica. 



4. St. Leanum Adams. 



T. subperforata , globoso-conica , spirab'ter et confer- 

 tissime sub lente striata, diaphana, cerina; spira exacte 

 conica, acutiuscula; anfr. fere 5 convexiusculi, ultimus 

 rotundatus, basi punctato-subperforatus; apertura axi sub- 

 parallela, ovalis; perist. simplex, continuum, rectum, mar- 

 gine dextro vix dilatato, columellari leviter arcuato, an- 

 gulo basali obsoleto, in lamellam exiguam continuato. — 

 Diam maj. 2'/4, min. 2, alt vix 2 mill. 



Stoastoma Leanum Monogr. p. 15. 

 Habitat in insula Jamaica. 



o. St. Redfieldianum Adams. 



T. perforata, conica, tenuiuscula, carinis confertis 

 prominentibus munita, diaphana, virenti-flavida; spira 

 exacte conica, acuta; anfr. 4V2 convexiusculi, ultimus ro- 

 tundatus, antice breviter solutus, subdeflexus, campanu- 

 lato-dilatatus; apertura axi parallela, semiovalis; perist. 

 simplex, continuum, margine dextro subcrenulato, basali 

 leviter arcuato, angulo basali in laminam elevatam conti- 

 nuato. — Diam. maj. 2, min. P/s, alt. IV2 mill. 



Stoastoma Redfieldianum Adams Monogr. p. 13. 

 Habitat in insula Jamaica. 



