190 STOASTOMA §. 4. 5. 



1167. 18. St. JYIoiissoniantim CliKty. f 



T. subdiscoidea, alba, seinidiaphana; spira convexo-sub- 

 elevata; anfr. S^/, convexiusculi, ultimus striis 22, quarum 4 

 fortioribus, infimis fortissimis , sculptus ; apertura semicirculo 

 major, inferne leviter depressa et expansa; labrum incrassatum 

 et reflexum, superne duplicatum, carinis 4 levissinie crenatum ; 

 labium modice solutum , subcurvatum ; umbilicus profundus ; 

 lamella labralis uniformiter acute et subtiliter producta, — 

 Alt. 0,035, lat. max. 0,058, lat. min. 0,042 poll. (Ch.) 

 Wilkinsonaea Moussoniana Chitty 1. c. p. 176. 



Habitat „Yailahs Hill" insulae Jamaicae. 



§. 5. Fadyenia Chitty. 



Testa depressa, parte supera anfractus uHimi subangularis, 

 subplanulata , ad peripheriam inferne subangulata circa uin- 

 biHcum. 



Fadyenia Chittij iu Proc Zool. Soc. Lond. 1857. p. 167. 177. 



Stoastomatis spec. C. B. .Jdains, Pfr. Mou. I'neum. 



•Species : 



1168. 19. Fadyenianum C. B Adauis. [Fadijenia Fa- 



dyeniana Chdly p. 177.) Pneuni. II. p. 171. 



1169. 20. St. Bowerb»nkianiiin CSaitty. f 



T. subdiscoidea, pallidissimefuscula; spira concavo-depressa, 

 apice mammillata; anfr, 4, superne rotundati, uUimus majus- 

 culus, carinis validis 24, superne aequidistantibus, ad peri- 

 pheriam spatium Hberum reHnquentibus, inferne distantioribus, 

 circa umbiHcum minutis, ad labrum obsoletis sculptus; aper- 

 tura superne levissime constricta pone labrum, dilatata, ampla, 

 magis constricta parte inferiore et po8tei'iore nec non ad lab- 

 rum, superne phmuhita, angulum fere rectum cum labio formans, 

 inferne rotundata; labrum simplex, album ; labium bene sohi- 

 tura, incrassatum et reflexum versus umbilicum profiuidius- 

 culum, valde rotundatum inferne ad dextram ; lameHa hibrahs 

 distincta, valida et prominens, sursum inflexa versus umbiHcum. 

 — AU. 0,041, lat max. 0,08, hat. min. 0,063 poll. (Ch.) 

 Fadijrivn Bowertninhiana Chitfi/ 1. c. p. 177. 



Hal)itat „Roaring River, Westmoreland" insulae Jamaicae. 



