CYLTNDRELLA §. 1. 369 



Cylindrella speciosa Dunker in Phil. Icon. I. 8. p. 186. t. 1. f. 19. 

 Habitat in reipublicae inexicanae provincia Tabasco (Nyst), var. 

 /^ in Columbia (Funck, Nyst). 



2. C. hyalina Pfr. 



T. rimata, truncata, ovato-oblonga, sursum subito attenuata, 

 lenuiuscula, diaphana, hyalina; anfr. 10 vix convexiusculi, an- 

 gusti, subaequales, subarcuatim tenuiter costato-striati, ultimus 

 breviter protractus, dorso subangulatus, basi obsoiete compres- 

 sus; apertura subverticalis, subcircularis; perist. undique liberum, 

 breviter expansum. — Long. 37, diam. 12 milL Lat. anfr. med. 

 373 mill. Ap. 9 mill. longa, 8 lata. (Mus. Cuming. ) 



Cylindrella hyalina Pfr. in Phil. \c.on. IL \0. p. 4 7. t. 2. f. 2. 

 Habitat . . . ? 



.3. C. recticosta Pft*. 



T. rimata, subcylindi-ica, versus apicem truncatum altenuata, 

 soHda, albida; anfr. 8 angusti, longitudinaliter et confertim costati 

 (costis rectis), penullimus supra suturam, ultimus ad peripheriam 

 obtuse angulatus , infra angulum sublaevigatus, antice non pro- 

 tractus; aperlura subverticalis, oblique ovalis; perist. subsim- 

 plex, brevissime expansum, superne appressum. — Long. 36, 

 diam. 12 mill. Lat. anfr. med. vix 5 mill. Ap. ^y^ mill. longa, 

 7V2 lata. (Mus. Cuming.) 



Cylindrella recticosta Pfr. in Phil. Icon. II. 1 0. p. 48. t. 2. f. 3. 

 Habitat . . . ? 



Obs. Similis C. decollatae /3; differl coslis lectis, anfractibus angustis, 

 subaequalibus , ultimo non protracto , etc. 



4. C. fasciata (Helix) Chemnitz. 



T. subrimata, truncata, cylindracea, tenuis, albida, striatula, 

 nitida; sutura crenata; anfr. 6 convexiusculi, medii violaceo-fusco 

 late unifasciati, ultimus vix solutus, dorso carinatus; apertura 

 obliqua, subcircularis; perist. vix reflexum. — Long. 30, diam. 

 11 mill. Ap. diam. 8 mill. (Mus. Cuming.) 



Helix (decollata et) fasciata Clienin. IX. P. 2. p. 187. t. 186 



f. 1256. 57. 



— fasciata (Cochlodina) Fer. pi-odr. 503. 



— truncata Dillw. descr. catal. II. p. 9 48. N. 137. 



— — WoodxnA. t. 3 4. f. 136. 

 Cyclostoma fasciata Lam. 14. p. 146. ed. Dh. p. 358. 



— — Desh. in Encycl. meth. II. p. 42. N. 10. 



— (?) fasciatimi Sow. fhesanr. p. 108. t. 24. f. 65. 

 Pupa truncata Gray in Ann. of Phil. New ser. IX. p 413. 



II. 24 



