CYCLOPHORUS $. 12. 99 
plana, vertice subtili vix. prominulo ; anfr. 4'/, convexiusculi, 
ultimus lente descendens; umbilicus latus, profundus; apertura 
obliqua, subovali-rotundata; perist. subsimplex, undique vix 
expansiuseulum , marginibus approximatis, infra medium an- 
fractus penultimi callo brevi subangulatim junctis. — Operc. 
immersum, tenue, corneum, arctispirum, extus concaviusculum. 
— Diam. maj. 18, min. 15, alt. 6 mill. (Coll. Nr. 63.) 
Cyclostoma annulatum Trosch. in Mus. Berol. 
— — Pfr. in Zeitschr. f. Mal. 1847. p. 150. 
— — Chemn. ed. YI. N. 175. p. 162. t. 22. f. 17 —19. 
Cyclophorus annulatus Pfr. in Zeitschr. f. Malak. 1847. p. 108. Consp. 
N. 142. 
-— — Gray Catal. Cycloph. p. 22. N. 32. 
B. Major; diam. maj. 23'/,, min. 19, alt. 8 mill.; ap. oblique 9 mill. longa. 
Cyclostoma discus Som. mss. in Mus. Cuming. 
— annulatum var. Chemn. |. c. p. 163. t. 29, f. 14. 15, 
Habitat in insula Ceylon (Hoffmeister). 
82. €. ravidus Benson. 
T. aperte umbilicata, subdiscoidea, nitidiuscula, confertim 
scabre tenuiter radiato-striata, olivaceo-lutea, sub epidermide 
alba; spira vix elevata, apice planato, obtuso; sutura impressa; 
anfr. 4 convexiusculi, lente accrescentes, ultimus cylindraceus, 
anticé vix descendens, superne prope suturam sub lente obso- 
lete spiraliter striatus; apertura obliqua, circularis; perist. tenue, 
rectum , marginibus callo tenui junetis; umbilieus latus, per- 
spectivus. — Opere. tenue, corneum, mulüspiratum, extus 
concaviuseulum. — Diam. maj. 15, min. 13, axis 1 mill. (D.) 
Cyclostoma ravidum Dens. in Ann. and Mag. 2d. ser. VIII. 1851, 
Cyclophorus ravidus Pfr. Consp. N. 143, 
Habitat ad apices montium Nilgherries Indiae. Meridionalis 
(Jerdon). 
83, €.? diseulus Pfr. 
T. umbilieata, depressa, discoidea, solidiuscula, nitida, 
alabastrina; spira planissima; anfr. vix 4 convexiusculi, ad 
suturam impressam striati, ultimus teretiusculus, subdepressus, 
in umbilico lato distinctius striatus, antice brevissime solutus; 
apertura subverticalis, circularis; perist. continuum , simplex, 
rectum. — Operc.? — Diam. maj. 14, min. 11, alt. 5 mill. 
(Mus. Cuming.) 
HS 
