CYLINDRELLA 8$. 7. 491 
. 58. C. decollata (Pupa) Nyst. 
« Testa vix arcuato-subrimata, cylindraceo-turrita, crassius- 
cula, solidula, parum nitens, pallide cinereo-fuscescens; spira 
sensim attenuata, late truncata; sutura impressa; anfractus 
superstites 10— 11 vix convexiusculi, subangusti, regulariter 
accrescentes, costulis tenuibus, subobliquis, vix prominulis im- 
pressi, ultimus vix descendens, brevissime solutus, dorso sub- 
angulatus, paulo infra medium sat valide filocarinatus, basi vix 
striatus; apertura vix obliqua, irregulariter angulato-circularis, 
intus albida; peristoma continuum, mediocriter incrassatum, 
undique breviter reflexum, albidum, margine columellari medio 
sat valide uniplicato. — Axis... . — Long. 60, diam. maj. 1617, 
mill. Apert. cum peristomate 13 mill. longa, 13 lata.» (Cr.) 
Pupa decollata Nyst iu Bull. Brux. 1841. VIII. p. 344 c. ic. 
Cylindrella. decollata Pfr. Mon. Hel. IL. p. 368 adnot, (UI. 567. 
IV. 695. VI. 364 ex parte.) 
Eucalodium decollatum Crosse X. Fisch. Moll. terr. Mex. p. 363. 
$1 4.- f^ 3. 
Habitat in prov. Tabasco reipubl. mexicanae (Ghiesbreght) et 
in prov. Vera Paz Guatemalae (Morelet). 
Obs. Haec species uti a Crosse descripta, melius cum typo Nystiano 
congruere videtur, quam illa, quam tempore, quo formae affines nondum 
notae erant, eodem nomine descripsi. Conf. Cylindrellam Walpoleanam 
Cr.4 F. Nr. 59. 
59. C. Walpoleana (Eucalodium) Crosse & Fischer. 
«Testa vix arcuato-subrimata, eylindraceo-turrita, truncata, 
solidula, sub epidermide olivaceo-fusca, passim longitudinaliter 
saturatiore, albida; spira sensim attenuata, late truncata; sutura 
impressa; anfr. superst. 9— 10 vix convexiusculi, regulariter 
accrescentes, costulis arcuatis, subobliquis longitudinaliter ornati, 
hie et illic sub costulis transversim subinconspicue striati, ulti- 
mus descendens, breviter solutus, antice leviter protractus, dorso 
angulato-carinatus, paulo infra medium obtuse filo-carinatus ; 
apertura leviter obliqua, irregulariter subangulato- ovata, intus 
plica columellari valida, subobliqua, ascendente coarctata; perist. 
continuum, incrassatum, undique breviter reflexum, albidum, 
interdum luteo-limbatum. — Long. 7^4, diam. maj. 19 mill. 
Apert. c. perist. 15 mill. longa, 13'/, lata.» (C. — Coll. Nr. 41?) 
Cylindrella  decollata Pfr. Mon. Helic. et in Phil. Abbild. II. 
(Non Nyst.) 
Eucalodium Walpoleanum Crosse X^ Fisch. in Journ. Conch. XX. 
1812. p. 15; Moll. lerr..Mex.- p. 377. 
5 14..f. 6. 
