175 
15. Cylichna verrillii Dali. 
DIffert a C. albo Br. testa coeruleacenti>alba, epidermide tenaissizna, vix fosceacente, 
euperficie undique spiraliter striatula, columella crassa, magia contorta, subplicata; per> 
foratione distincta; angulo supero magis producto. 
Long. 7,5, diam. 3 mm. 
Cylichna verrillii Dali Rep. Blake Gaatrop. p. 54. 
Vor Nordcarolina. 
16. Cylichna krebsii Mörch. 
Teata brevis, cylindrica, regulariter apiraliter striata, striis incrementi distinctis; 
labrum supra subproductum ; apex imperforatus, callo tenui obtectua; columella fortiter 
angulata, sicut in Haminea succinea Couth. 
Alt. 8, diam. 4 mm. 
Cylichna Krebsii Morch Mal. Bl. XXII p. 172. — Dali Blake Gastrop. 
p. 55. 
Westindien. 
17. Cylichna luticola C. B. Adams. 
Testa subcylindrica, infra dilatata, pallide cornea, subtransparens, striis incrementi 
subtilissimis ; apex perforatus, perforatione profunda, angusta, a labri insertione partim 
tecta; anfr. ultimus medio compressus; apertura supra linearis, infra subcircularis ; labrum 
super umbilicum ascendens, tenuissimum, medio productum; columella incrassata; regio 
umbilicalis infra indentata, partim callo obtecta. 
Long. 4,2, diam. 2 mm. 
Bulla (Cylichna) luticola C. B. Adams Panama Cat. p. 215. 
Haminea luticola A. Adams Genera II p. 16. 
Cylichna — Carpenter Mazatlan p. 170. Moll. Western N. Amer. 
p. 34. 
— — Pilsbry Manual vol. XVI p. 302. 
Panama, Mazatlan. 
