CYLINDRELLA §. 6. 7. 383 



arctata; perist. continuum, undique breviter expansum. — 

 Long. i3 — 14, diam. iVa mill. Ap. 3 milL longa, ^y^ lata. (CoH. 

 Roemer.) 



Cylindrella Roemeri Pfr. mss. 

 /i. Minor, sursum ventrosior, anfr. 12 , ultirao brevius soluto : long. 1 1, 



diara. supra mediura 4 raill. (Goll. Nr. 26.) 

 Habitat in Texas, ubi prope Neu-Rraunfels legit Dr. Ferd. Roemer. 



Obs. Afflnis quidem el praecetlenti et sequenti, tamen carina basali an- 

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

 sam putes, ab omnibus distinctissima. 



4L C. Goldfussi Menke. ..,,^ . J.. 



T. profunde rimata, elongata, medio ventrdsa'-,' apice" conico 

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

 arcuatim costulato-striata; anfr. 12 vix convexiusculi, angusti, 

 ultimus antrorsum breviter protractus, dorso carinatus, latere 

 dextro subsulcatus, basi rotundatus; apertura subverticalis, obli- 

 que subtriangulari-pyriformis; perist. undique breviter expansum, 

 albidum, margine supero flexuoso. — Long. 11, diam. medio 

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



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



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

 Habitat in Texas. 



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



§• 7. 

 42. C. acus Pfk-i 4' //. ^/^. t > - ^ *-4" '^ -. 



T. subintegra, elongata, cylindracea, aprce attenuata, tenuis, 

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

 19 planiusculi, ultimus oblique et conferlim costulato-striatus, 

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

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

 Long. 24 — 26, diam, 3/. mill. Apert. diam. long. 4 miil. (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. Otto). 



43. C. Dunkeriana PEe./'-,'-,//. ^ /.:. "{[na 



T. subrimata, truncata, exacte cylindrica, oblique et"c6nfer- 

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

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

 subcanaliculata, in fundo ad columellam subuniplicata; perist. 



