CHOANOPOMA §. 2. 
163 
Choanopoma spinulosum Pfr. Consp. N. 234. 
Habitat in insula Jamaica. 
Obs. Cl. Auct. in Catal. moll. Jamaic. Apr. 1851 ad C. lincinellum Lam. 
synonymum laudat : C. spinulosum Ad. ? 
13. CIi. mite Pfr* 273 
T. umbilicata, turbinato-globosa , breviter truncata, liris 
obtusis spiralibus munita, costulis membranaceis confertissimis 
decussata, unicolor corneo-albida ; spira convexa, brevis; anfr. 
superst. 3 Vi convexi, ultimus teres, circa umbilicum medio- 
crem, pervium distinctius spiraliter liratus; apertura verticalis, 
circularis ; perist. duplex : internum vix porrectum , externum 
undique aequaliter dilatatum, patens, obsolete undulatum, con- 
centrice striatum, superne subangulatum, ad anfr. penultimum 
subemarginatum. — Operc. ? — Diam. maj. 13, min. 10, 
alt. 9 mill. Ap. intus 5 , cum limbo 7 [ / 2 m ill. longa. (Mus. 
Cuming.) 
Cyclostoma mite (Choanopoma) Pfr. in Proc. Zool. Sog. 9 Dec. 1851. 
— — Chemn. ed. II. N. 332. t. 42. f. 7. 8. 
Choanopoma mite Pfr. Consp. N. 235. p. 59. 
Habitat in insula Jamaica. 
Obs. Differt ab omnibus praecedentibus superficie minime scabra, limbo 
peristomatis externo aequaliter angusto, vix undulato. 
14. Cli.? Pretrei Orbigny. 274 
T. umbilicata, turbinata, tenuis, lamellis longitudinalibus 
distantibus, seriatim spiniferis munita, unicolor alba; spira 
conica, saepe truncatula; anfr. 4 — 6 convexi, ultimus antice 
solutus, oblique descendens ; umbilicus mediocris, pervius, intus 
spiraliter liratus ; apertura subcircularis ; perist. duplicatum : 
internum acutum, breviter porrectum, externum undulatum, 
horizontaliter anguste expansum. — Operc.? — Long. 8, 
diam. 5 mill. Ap. 3 mill. diam. (Mus. Cuming.) 
Cyclostoma Pretrci Orhigny Moll. Cub. I. p. 260. t. 22. f. 9—11. *) 
*) T. conica , tenui , diaphana, pellucida, alba, umbilicata, longitudina- 
liter lamellosa, transversim spinosa; spira conica, elevata; anfr. 6 convexis, 
ultimo soluto ; apertura rotunda ; labro tenui , foliaceo , undulato-crenulato. 
— Long. 9 mill. Diam. 6 mill. — Coquille profondement ombiliquee, ornee 
en long de lames saillantes espacees et, en travel’s, de 10 — 11 lignes trans- 
versales de pointes epineuses , placees sur les lames. Spire conique, tron- 
quee "k son sommet , composee de 6 tours tres - convexes , dont le dernier, 
11 * 
