CISTULA § 1.2. 
263 
Cyclostoma pleurophorum Pfr. in Proc. Zool. Soc. 1851. Jul. 
— — Chemn ©d. II. N. 299. t. 40. f. 5. 6. 
Cistula pleurophora Pfr. Consp. N. 383. p. 66. 
Habitat Honduras. 
§. 2 . 
5- €. radiosa Iflorelet. 429 
T. vix subperforata, tenuis, ovato-oblonga, truncata, liris 
concentricis obtusis, lineisque elevatis longitudinalibus confer- 
tissimis decussata, haud nitens, diaphana, pallide fulvida, lineis 
rufis cingulata; sutura simplex; anfr. superst. 4 r / 2 convexius- 
culi, ultimus penultimum non superans; apertura verticalis, 
subovalis, superne subangulata; perist. simplex, late et rec- 
tangule reflexum, limbo concentrice subimbricatim striato et 
rufo-radiato , ad anfr. penultimum exciso. — Operc. C. cate - 
natae. — Long. 15 — 16, diam. 8 mill. Ap. 5 mill, longa. 
(Coll. Nr. 188.) 
Cyclostoma radiosum Morelet Test, noviss. p. 22. N. 55. *) 
— — Chemn. ed. II. N. 267. t. 37. f. 15. 16. 
Cistula radiosa Pfr. Consp. N. 384. 
Habitat petrosa provinciae Petenensis Guatemalae. 
6. C. Tantsiana Pfr. 4 30 
T. subperforata, oblongo - turrita , vix truncatula (saepe 
integra), tenuiuscula, longitudinaliter et confertim plicatula, 
parum nitida, coerulescenti - fusca , lineis castaneis interruptis 
vel seriebus punctorum ornata; sutura minutissime et confer- 
tissime denticulata; anfr. 7 convexi, ultimus antice vix solutus; 
apertura sub verticalis , subangulato - rotundata ; perist simplex, 
continuum, undique breviter expansum. — Operc. fusculum, 
nucleo parum excentrico. — Long, (testae integrae) 16, diam. 
7 mill. Ap. 5 mill, longa, 4 r / 2 lata (Coll. Nr. 189.) 
'■•) T. ventriculoso-pyramidalis , perforata, creberrime decussata, trans- 
lucida, pallide fulva , lineolis interruptis rubiginosis in ultimo anfractu satu- 
ratioribus, ad basin radiatim divergentibus ornata; spira turrito - acuminata, 
saepius truncata; anfr. 8 convexiusculi, ultimo ventricosulo ; apertura rotundo- 
ovalis, callo nitido cingulata; perist. expansum, concavum, lamelloso-crispa- 
tum , superne dimidiatum , appressum ; marginibus tenuibus , acutis , versus 
umbilicum plerumque fimbriatis. — Long, testae integrae 20 ; diam. 8*/ a 
mill. (Mor. 1. c.) 
