106 CTENOPOMA. 



sutura costularum fasciculis crenata; anfr. superst. 3 — 4 con- 

 vexi, ultimus antice non solutus, nec nodulaius ; apertura ver- 

 ticalis, circularis, ampla ; perist. duplex : internum vix promi- 

 nulum, externum breviter patens, concentrice striatum, superne 

 longe aclnatum , perforationem fere tegens. — Operc. C. ru- 

 gulosi. — Long. 8, diam. ^'/j mill. Ap. diam. fcre 3 mill. 

 (Coll. Nr. 180.) 



Cyclosloma rotundatum Poey Menior. I. p. 419. t. 34. f. 19-21. 

 Ctenopomn rotundatum Pfr. in Malak. Bl. 1856. p. 60. 126. 



Habitat „Sierra de Organos" provinciae occidentalis Cubae 

 (Gundlach). 



b s. Simile Ct. ruguloso ; differt sculptura , nodulo in extremitate 

 anfractus ultimi dericiente, etc. 



11- Ct. sordiduni diiidlaeli. -^ 



„Testa obtecte umbilicata, ovato-oblonga, decollata, tenuis, 

 pllcis transvcrsis confertis irregulariter lamellata , costulis spi- 

 ralibus distantibus decussata, cinerascenti-albida; anfractus su- 

 perstites S^/o convexi, lente accrescentes , ad suturam canali- 

 culatam denticulati, ultimus anfractui contiguo adnatus ; aper- 

 tura vcrticalis , circularis; peritrema duplicatum : internum 

 rectum, acutum , postice prominens, ibique striis incrementi 

 ornatuni, externum undique aequaliter patens, laevigatum. — 

 Operculum? — Long. trunc. T'/^ — H? diam. 41/2 — 7 mill." (G.) 



Cyclostoma sordidum Gundl. in Poey Menior. II. p. 14. 

 — — Gundl. in Malak. Bl. 1856. p. 39. 



Ctenopoma S07'dtdum Pfr. in Malak. Bl. 1856. p. 61. 126. 



Habitat in monte prope San Diego de los Banos prov. occi- 

 dentalis Civbae (Gundlach). 



Obs. „Differt a C. rotundato Poey forma ovato-oblonga et peritre- 

 mate distincto, ab lionesto Poey absentia tubcrculi pone aperturam nec non 

 forma testae. " 



12. €t. Cainpbelii €. B- Adains. 



T, perforata, elongato-conica, tenuiuscula , plicis lamella- 

 ribus confertis, ad suturam acute excurrentibus sculpta, dia- 

 phana, fulvescenti-albida, seriebus macularum rufarum ornata ; 

 spira integra, acuta; anfr. Ty^ convexi, ultimus longe solutus, 

 dorso angulatus et crenulatus; apertura obliqua, subcircularis; 

 perist. subduplex : internum indistinctum, adnatum, externum 

 superne productum, margine dextro et basali patentibuSj sini- 



