190 
STOASTOMA §. 4. 5. 
1167. 18. jSt. ]fIoits@ioiiianiim Cliitty. f 
T. subdiscoidea, alba, semidiaphana; spira convexo-sub- 
elevata; anfr. convexiusculi, ultimus striis 22, quarum 4 
fortioribus, infimis fortissimis , sculptus ; apertura semicircuio 
major, inferne leviter depressa etexpansa; labrum incrassatum 
et reflexura, superne duplicatum, carinis 4 levissime 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.) 
Wdhinsoiiaea Moussoniana Chitty 1. o,. p. 176. 
Habitat „Yallahs Hill" insulae Jamaicae. 
§, 5. Fadyenia Chitty. 
Testa depressa, parte supera anfractus ultimi subangularis, 
subplanulata , ad peripheriam inferne subangulata circa um- 
bilicum. 
Fadyenia Chitty in Proc Zool. Soc. Lond. 1857. p. 167. 177. 
Sfoastomatis spec, C. B. Adams, Pfi\ Mon. Pneum. 
Species : 
1168. 19. Fadyenianum C. B Adams. [Fadyenia Fa- 
dyeniana Chitty p. 177.) Pneum. TI. p, 171. 
1169. 20. Sf. f 
T. subdiscoidea, pallidissimefuscula; spira concavo-depressa, 
apice mammiilata; anfr. 4, superne rotundati, ultimus majus- 
culus, carinis validis 24, superne aequidistantibus , ad peri- 
pheriam spatium liberum relinquentibus, inferne distantioribus, 
circa umbilicum minutis, ad labrum obsoletis sculptus; aper- 
tura superne levissime constricta pone labrum, dilatata, ampla, 
magis constricta parte inferiore et posteriore nec non ad lab- 
rum, superne planulata, angulum fere rectum cum labio formans, 
inferne rotundata; labrum simplex, album ; labium bene solu- 
tum, incrassatum et reflexum versus umbilicum profundius- 
culum, valde rotundatum inferne ad dextram ; lamella labralis 
distincta, valida et prominens, sursum inflexa versus umbilicum. 
— Alt. 0,041, lat max, 0,08, lat. min. 0,063 poll. (Ch.) 
Fadyenia Bowerhanhiana Chitty 1. c. p. 177. 
Habitat „ Roaring River, Westmoreland" insulae Jamaicae. 
