CHOANOPOMA 5$. 2. 161 
Cyclostoma scabriculum  Chemn. ed. Y. N. 71/p. 77. (ex parte.) N. 375. 
13546513515 316. 
— amabile A4dams Contrib. to Conchol, N. 1. p. 2! 
Choanopoma scabriculum Pfr. in Zeitschr. f. Mal. 1847. p. 107. et 
Consp. N. 232. 
— - Gray Catal. Cycloph. p. 50. N. 4. 
Habitat in insula Jamaica. 
11. €h,. Hillianum Adams. 271 
T. umbilicata, globoso-conoidea, tenuis, costulis spiralibus 
et longitudinalibus conferüs regulariter clathrata, scabra, fulvo- 
albida, rufo interrupte fasciata vel lineata; spira convexo- 
conoidea, vix truncatula; anfr. superst. 4 modice convexi, 
ultümus teres, circa umbilieum mediocrem, apertum, regularem 
validius spiralhter hratus; apertura subverücalis, circularis; 
perist. duplicatum : internum vix porrectum, expansiusculum, 
externum limbum formans latum, angulatim expansum, con- 
fertim radiato-plicatum, fusculo-radiatum, superne sinuoso- 
auriculatum, ad anfr. penulümum emarginatum. —  Operc. 
testaceum, album, anfr. 4 sensim accrescenübus, margine /afe 
elevato, superne anguste angulatim reflexo, oblique striato. — 
Diam. maj. 15, min. 11'/,, alt. 10 mill. Ap. intus 5'/, eum 
limbo 10 mill. longa. (Coll. Nr. 110. Spec. authent.) 
Cyclostoma Hillianum Adams in Proc. Bost. Soc. 1845. p. 11. *) 
— scabriculum Chemn. ed, II. Cycl. t. 10. f. 6—8. 
Choanopoma Hilianum Pfr. in Zeitschr. f. Mal. 1847. p. 107. et Consp. 
IN-5238. 
— — Gray Catal. Cycloph. p. 52. N. 91. 
B8. Testa alba, fusco- cingulata, anfractu ultimo antice brevissime soluto. 
(Spec. authent.) 
Cyclostoma amandum Adams Contrib. to Conch. N. 1. p. 3. **) 
rotundatis, spiraliter sulcatis, sulcis confertissimis decussatis, asperis; sutura 
distincta; apertura circulari; peritremate duplici, interno tenui, externo late 
expanso, undulato, postiee undulato-lamellari ; umbilico mediocri; operculo 
lamella levata spirali. (Sow. l. c.) 
*) T. subdepressa, candida, fasciis angustis fuscis interruptis ornata, 
decollata, anfr. reliquis 5 vix connexis, aculeis elongatis decussatim seriatis 
elegantissime insculptis; apertura ab anfr. penultimo remota; labro latissime 
planulato, plicato; umbilico lato, profundo; operc. albo, lamella spirali pro- 
E MT Div. 110?; alt. 0,32, lat. max. 0,47, min. 0,37 poll. (Adams 
«nes 
**) Shell short, globose-conic; dingy white with three principal and 
often other brown more or less interrupted spiral bands; with quite regular 
prominent lamellae of growth, which are decussated and aculeated by very 
11 
