910 
Cyclostoma prominula (F6r. mss.) in: d’Orbigny, Voy. Am6r. m6rid. vol. 
V. 3, p. 362. 
Cyclotus prominulus L. Pfeiffer Mon. Pneum. vol. I p. 23. — Reeve, Conch. 
icon. sp. 28. — Hidalgo, Mol. viaje pacifico vol. I p. 149. — 
(Neocyclotus) Kobelt & Moellendorff, Catal. Pneum., in: Nachrbl. 
D. malac. Ges. 1897 vol. 29 p. 138. — (N.) Kobelt, Cyclophori- 
dae, in: Tierreich, Heft 16 p. 238. 
Cyclostoma brasiliense J. E. Gray, in: Zool. Beecheys Voy. p. 147 t. 38 
fig. 32. — Sowerby, Thes. Conchyl. vol. I p. 92 1. 12 fig. 13 — 15. 
— L. Pfeiffer, in : Martini & Chemnitz, Conch. Cab. ed. II p. 108 
t. 12 fig. 13 — 15. — (Aperostoma) L. Pfeiffer, Zeitschr. f. Malak. 
1847 vol. 4 p. 104. 
Brasilien (Rio Janeiro ; Prov. Minas Geraes). 
Genus Buckleyia Higgins. 
Testa discoidea, utrinque excavata et anfractus omnes exhibens; apertura verticalis, 
circularis; peristoma tenue, acutum. — Operculum corneum, multispirum, extus concavum 
nucleo centrali. 
Buckleyia subgen. Aperostomae Higgins, in: Pr. zool. Soc. London 1872 
p. 686. — Mousson, in : Malak. Bl. 1873 vol. 21 p. 17 (genus). — 
Kobelt & Moellendorff, Catal. Pneumonop., in: Nachrbl. D. mal. 
Ges. 1897 vol. 29 p. 140. — Kobelt, Cyclophoridae, in: Tierreich 
Heft 16 p. 257. 
Nur zwei sehr nahe verwandte Arten, die eine aus Ecuador, die andere aus 
Columbia. 
1. Buckleyia martinezi Hidalgo. 
Taf. 134. Fig. 9—12. 
Testa latissime umbilicata, planorboidea, utrinque fere aequaliter subexcavata, confer- 
tim striata lineisque spiralibus sub lente decussata, fulva, strigis pallidis irregulariter radiata ; 
sutura mediocris, marginata. Anfractus 4—4 convexiusculi modice accrescentes, ultimus 
ad peripheriam carinis 4 acutiusculis munitus, in interstitiis conferte spiraliter striatus, antice 
non descendens. Apertura verticalis, circularis; peristoma tenue, rectum, continuum, anfrac- 
