CYLTNDRELLA §. 1. 369 



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

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

 (i in Columbia (Funck, Nyst). 



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

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

 gusti, subaequales, subarcuatim tenuiter costato-striati , ultimus 

 breviter protractus, dorso subangulatus , basi obsolete compres- 

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

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

 3"/3 mill. Ap. 9 mill. longa, 8 lata. (Mus. Cuming.) 



Cylindrella hyalina Pfr. in Phil. Icon. II. 10. p. 47. t. 2. f. 2. 

 Habitat . . . ? 



3. C. recticosta Pfr. .D.^i-; 



_ . T ,. , . . '■ ■ ■''//^•i\4,7&. 



T. riinata, subcyhndrica, versus apicem trUncatum attenuata, 

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

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

 obtuse angulatus , infra angulum sublaevigatus, antice non pro- 

 tractus; apertura subverticaHs, oblique ovalis; perist. subsim- 

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

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

 Vli lata. (Mus. Cuming.) 



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

 Habitat . . . ? Oa^lK-c-K & vt. 



Obs. Similis C. decollalae /5; differt coslis lectis, anfractibus angustis, 

 subaequalibus , ultimo non protracto , etc. 



4. C. fasciata (Helix) Chemnitz.M/j.J^X^-j,: v.t-j; ■ 



T. subrimata, truncata, cylindracea, tenuis, albida,'striatu1a, 

 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 (decoUata et) fasciata Chemn. IX. P. 2. p. 187. t. 186. 



f. 1256. 57. 



— fasciata (Cochlodina) Fer. prodr. 503. 



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



— — Woodmd. t. 3 4. f. 136. 

 Cyclostoma fasciata Lam. 1 4. p. 146. ed. Dh. p. 358. 



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



— (?) fasciatum, Sow. fhesaur. p. 108. t. 24. f. 65 

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

 II. 24 



