fe di 
CYCLOPHORUS $. 5. 81 
eolumellari in laminam appressam expanso, basali superne in 
tuberculum prominens desinente. — Operc. tenuissimum, lu- 
tescenti-corneum, arctispirum. — Diam. maj. 25, min. 21, alt. 
16 mill Ap. intus 10 mill. longa. (Coll. Nr. 51.) 
Trochus turbo Chemn. Conch. Cab. IX. P. II. p. 53. t 122. f. 1059. *) 
Helix turbo Gmel. Syst. p. 3642, N. 232. 
Cyclostoma turbo Som. 'Thes. N. 75. p. 116, t. 25. f. 102. 103. **) 
— —  Chemn. ed. II. N. 148. p. 140. t. 19. f. 4. 5. 
— — Jay Catal. Ed. 1850. p. 260. N. 6014. 
— maculosa Ja; Catal. Ed. 1839. p. 122. t. 7. f. 9. 10. ***) 
Cyclophorus turbo Pfr. in Zeitschr. £. Mal. 1847. p. 108. Consp. N. 111. 
— — - Gray Catal. Cycloph. p. 20. N. 21. 
Habitat 'Tranquebar et Coromandel (Chemnitz), Sumatra (So- 
werby); ins. Nicobar. (Mórch.) 
47. €.? ietericus Sowerby. 
T. subobtecte umbilicata, globoso-conica, solida, spiraliter 
et confertim lirata, subunicolor fulvescenti-flava; spira conica, 
apice subtruncata; anfr. 5 convexiusculi, ultimus spiram ae- 
quans, basi profundius suleatus; apertura subobliqua, ovalis, 
rotundata, intus concolor; perist. subincrassatum,, expansum, 
marginibus callo lunatim exciso junctis, columellari superne 
in laminam fornicatam, reflexam expanso. —  Operc.? — 
Diam. maj. 22, min. 16!'/,, alt. 18 mill. Ap. 14 mill. longa, 
12 lata. (Mus. Cuming.) 
Cyclostoma ictericum Som. "Thes, N. 113. p. 131. t. 31. f. 268. 269. t) 
— -— Chemn. ed. II. N, 150. p. 142. t. 19, f. 8, 9, 
*) T. trochiformi, ex luteo et rufo variegata, subperforata, ore lunato 
seu rotundo; anfr. 6. (Chemn. l1. c.) 
**) T. subglobosa, spira conoidali, anfr. 5 planulatis, pallidis, brunneo- 
variegatis; sutura inconspicua; apertura fere circulari, latere columellari 
subangulato; columella rectiuscula, subobliqua; peritremate reflexo, rotun- 
dato, postice marginato, infra in angulum desinente; umbilico clauso, cal- 
loso; opereulo corneo, tenui, spirali. (Sow. l. c.) 
***) Remarkable for the angularity of the base of the body whorl, and 
somewhat resembles the base of a Trochus. "The umbilicus is almost clos- 
ed. 'The shell has a polished appearance and is beautifully mottled with 
reddish brown blotches. (Jay l. c.) 
1) T. globoso-conica, crassiuscula, fulvescente, spira acuminata, apice 
decollato; anfr. 4 rotundatis, spiraliter sulcatis; apertura circulari, peritre- 
mate incrassato, reflexo, supra umbilicum parvum crasso, extenso, umbili- 
cum fere tegente, postice subacuminato ; sulcis spiralibus umbilici majoribus. 
(Sow. 1l. c.) 
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