62 



Stoastoma Fadyenianum Adams Monogr. p. 7. 

 Habitat in insula Jamaica. 



9. St. Chittyanum Adams. 



T. subumbiiicata , subconoideo-depressa, confertim 

 sub lente hrata, subopaca, pallide Cornea vel cerea ; spira 

 subconoidea, acutiuscula; anfr. 4V2 planiusculi, ultimus 

 subrolundatus, antice solutus, basi planuiatus; apertura 

 axi parallela, semiovabs; perist. simplex, tenue, margine 

 dextro perarcuato, columellari stricto, angulo basali ob- 

 soleto, in laminain latam, umbilicum angustissimum fere 

 tegentem, produeto. — Diain. inaj. 2V35 ™J°' ^> ^l*. IV3 

 mill. 



Stoastoma Chittyanum Adams Monogr. p. 10. 

 Habitat in insula Jamaica. 



10. St. Cumingiannm Adams. 



T. subumbiiicata, depressa, tenuis, spiraliter confer- 

 tim striata, subdiaphana , rubella vel fuscula; spira bre- 

 viter conoideo-elevata , obtusiuscula; anfr. fere 4, modice 

 convexi, ultimus rotundatus, basi profunde excavatus, um- 

 bilicum simulans; apertura axi parallela, lata, semiovalis; 

 perist. continuum, simplex, reflexiusculum, margine dextro 

 arcuatim dilatato, columellari vix soluto, basali in laminam 

 exiguam continuato. — Diam. maj. 2V5, min. IV4, alt. 

 V4 mill. 



Stoastoma Cumingianum Adams Monogr. p. 9. 

 Ilabitat in insula Jamaica. 



c. Sclieibeiifürinig. 



11. St. Gouldianum Adams. 



T. umbilicata, discoidea, tenuis, carinis acutis distan- 

 tibus, lineisque subtilissimis spiralibus sculpta, pellucida, 

 virenti-hyalina; spira subplana, minutissime mucronataj 



