CYLINDRELLA §. 6. 7. 383 



arctata; perist. continuum, undique breviter expansum. — 

 Long. 13 — 14, diam. iVa mili. Ap. 3 mill. longa, Siy., lata. (Coll. 

 Roemer.) 



CylindreUa Roemeri Pfr. mss. 

 /^. Minor, sursum ventrosior, anfr. 12, ultimo brevius solulo : loiig. H, 



diam. supra medium 4 raill. (Coll. Nr. 26.) 

 Habitat in Texas, ubi prope Neu-Braunfels legit Dr. Ferd. Roenier. 



Obs. Affinis quidem el praecedenti et sequenti, tamen carina basali an- 

 fractus ultimi et ejus torsione tam singuiari , ut testam primo aspectu sinistror- 

 sam putes, alj omnibus distinctissima. 



4L C. Goldfussi Menke. 



T. profunde rimata, elongata, medio ventrosa, apice conico 

 non truncata, tenuis, diaphana, pallide cornea, confertim et sub- 

 arcualim costulato-striata; anfr. 12 vix convexiusculi, angusli, 

 ultinius anlrorsum breviter protractus, dorso carinatus, latere 

 dextro subsulcatus, basi rotundatus; apertura subveriicalis, obli- 

 que subtriangulari-pyriformis; peiist. undique brcviter expansum, 

 albidum , margine supero flexuoso. — Long. 1 1 , diam. medio 

 4 '/3 mill. Ap. 3 mill. longa et lata. (Coll. Nr. 27.) 



Cylindrella Goldfussi Menke in Zeitschr. f. Mal. 18 47. p. 2. 

 — — Phil. lcon. m. 17. p. 6. Cyl. t. 3. f. 9. 



Habitat in Texas. 



Obs. Ad lianc sectionem conf C. coilaris Nr. 20. 



§• 7. 



42. C. acus Pft*. 



T. subintegra, elongala, cylindracea, apice attenuata, tenuis, 

 pellucida, pallide cornea, levissime striata, nitida; anfr. 18 — 

 19 planiusculi, ultimus oblique et confertim costulato-striatus, 

 basi crenulato-carinatus, non protractus; apettura oblongo-rotun- 

 data; perist. tenue, expansum, margine supero subappresso. — 

 Long. 24 — 26, diam. 3j/i mill. Apert. diam. long. 4 mill. (Coll. 

 Nr. 28.) 



Cylindrella acus Pfr. Symb. I. p. 47. 



— . — Phil lcon. I. 8. p. 182. t. 1. f. 8. 



Habitat in insulae Cubae regione occidentali: Callajabas (E. Otlo). 



43. C. Dunkeriana Pfr. 



T. subrimata, truncata, exacte cylindrica, oblique et confer- 

 tim subarcuato-siriata, corneo-rufa; anfr. 12 plani, ultimus non 

 protractus, basi acute carinatus; apertura obliqua, obovalis, basi 

 subcanaliculata, in fundo ad columellam subuniplicata; perist. 



