160 CHOANOPOMA 8. 4. 5. 
44, Ch. Newcombi Crosse. 1 
».T. late et perspective umbilicata, breviter conica, tenui- 
uscula, subtranslueida, transversim liris numerosis, tenuibus 
impressa, longitudinaliter stris incrementi decussata, violaceo- 
fusca; spira turbinata, apice obtusulo; sutura profunde impressa, 
canalieulata, tenuissime et subregulariter denticulato-laciniata; 
anfr. vix 5 convexi, embryonales 1!/, sublaevigati, ultimus 
antice breviter ascendens, pone marginem externum albidus, 
basi subplanatus, ad umbilicum liris validioribus et magis di- 
stantibus munitus; apertura obliqua, circularis, intus livide 
violaceo-fusca; peristoma duplex, albidum, externum non libe- 
rum, expansum, imprimis ad occursum anífractus penultimi 
dilatatum, internum brevissimum, rotundatum. — Opere. nor- 
male. — Diam. maj. 9!/, min. 8, alt. 6 mill. Apert. 3 mill. 
longa et lata.* (C.) 
Choanopoma Newcombi Crosse in Journ. Conch. XXI. 1873. p. 352; XXII. 
18744/p4 82.1643. Eo 1/987 
Habitat in regione Dominicana insulae Haitü (Gabb). 
* 
45. serraticosta (Cyelostoma) Weinland. (Coll. 41.) III. 109. — 
Chondropoma  serraticosta Bland ia Ann. Lyc. N.-York XI. Jun. 
1875. p. 151. — Haiti. 
S. D. 
46. eburneum (Cyelostoma) Gundl. (Coll. 42.) III. 109. — Cuba. 
47. auricomum (Cyelostoma) Gundl. (Coll. 43.) III. 109. —  Pátel 
Cat. p. 121. — Cuba. 
48. putre (Cyelostoma) Gundl. (Coll. 44.) IIL'110. — Patel Cat. 
p. 121. — Cuba. 
49. alatum (Cycelostoma) Pfr. (Coll 45.) I. 166. II. 102. III. 110. 
— JPiütel Cat. p. 121. — Cuba. 
50. solutum (Cyelostoma) Rich. (Coll. 46.) I. 167. II. 102. III. 110. 
— Haiti. 
51. Ch. Moreletianum Crosse. 1 
» T. late et perspective umbilicata, suborbieularis, depressa, 
tenuiuscula, diaphana, costulis subdistantibus spirahter cincta, 
lamellis gracilibus, compressis, ad occursum costularum spi- 
nulas cavas, tubuliformes, breves emittentibus longitudinaliter 
sculpta (interstitiis lamellarum tenuissime striatis), albida; spira 
subplanata, medio vix prominula, apice rotundato, obtusulo; 
sutura profunde impressa, subcanaliculata, occursu lamellarum 
denticulata; anfr. 4!/, subplanati, embryonales 1!/, laevigati, 
