CTENOPOMA §. 1. 
113 
caeterum anguste patens. — Operc. planum , terminale. — 
Long. 11, diam. 6 mill, Apert. 32/3 mill. alta. (Coll. Nr. 258.) 
Cyclostoma torquatum Gut.^ Poey Memor. IL p. 34. t. 4, f. 2. 
Cienopoma torquatum Pfr. Mon. Pneum. Suppl. p. 105. (ex Poey). 
Habitat prope Cienfuegos in parte mericlionali insulae 
Cubae. 
* 
2, echinatum Gundl. (Coll, 259 -- Cuba.) . Pneum. II. p. 103. 658. 
3. hone stum Poey. (Coll. 260. — Cyclostoma 659. 
Reeve t, 17. f. 108. — Cuba.) - - - 105. 
4. iindosiiiii Q-iindlaeli* 660. 
T. clause perforata, oblongo-turrita , solida, liris paucis 
spiralibus undulatis , validis costulisque lamellaribus sculpta ; 
spira oblonga, truncata ; sutura crenulata ; anfr. superst. 3^/2 — 4, 
superi subangulati, ultimus non solutus ; apertura verticalis, 
subcircularis ; perist. breviter . expansum , undulatum, lamina 
dilatata umbilicum omnino claudens. Operc. normale, ter- 
minale- — Long. (spec, max.) 71/2 , diam. 4 mill. Apert, 
diam. 2V2 (Coll. Nr. 261.) 
Cyclostoma undosum Gundl. in litt 
Ctenopoma undosum Pfr. in Malak. Bl. X. 1863. p. 193. 
Habitat in parte occidentali insulae Cubae. 
5. Ct« lifiilverialeiitsiiM 66I. 
T. clause perforata, turrita, truncata, solidula, longitu- 
dinaliter confertissime chordato-striatula , carneo-alabastrina ; 
spira regulariter attenuata , sublate truncata ; sutura fascicu- 
latim et grosse crenata ; anfr. superst. 5 convexi, ultimus 
non solutus , liris nonnullis obsoletis basi sculptus ; apertura 
verticalis , subcircularis ; perist. duplex : internum vix pro- 
minulum, externum anguste patens, superne productum, supra 
perforationem adnatum, turn breviter auriculatura. — Operc. 
planum, anfractibus parum conspicuis, nucleo impresso. — 
Long. 7^3, diam. 3 mill. (Coll. Nr. 262.) 
Ctenopoma pulverulentum Wright Pfr. in Malak. Bl. 1864, X. p. 103. 
Habitat in parte occidentali insulae Cubae (Wright). 
6. ? biif® Pfr. 662. 
T. clause perforata, oblonga, solida, liris spiralibus gros- 
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