CYCLOTUS §. 2. 
33 
30. C.? diatretus Gould, f 56 
T. planorboidea , albido - cornea , supra costis distantibus, 
ad intervallos cincinne clathratis, angulata, late umbilicata; 
spira planulata, anfr. 4 cylindraceis, rapide crescentibus, prope 
suturam decliventibus ; apertura circularis; perist. simplex. — 
Lat. 2 / 5 , alt. 7 S poll. (G.) 
Cyclostoma diatreium Gould in Proc. Bost. Soc. 1847. p. 205 et Ex- 
ped. shells p. 38. Ed. 1851. p. 105. f. 124. 
Cy clolus? diatretus Pfr. Consp. N. 29. 
Habitat Sandalwood-Bay, Feejee Islands. 
* * 
*- 
31. C* coiioftdeus Pfr. 57 
T. umbilicata, globoso-turbinata, tenuis, pallide fusco et 
rufo marmorata et fasciata, lineis elevatis spiralibus et inter- 
dum carina 1 vel 2 distinctioribus cincta; spira conica, acu- 
tiuscula ; sutura profunda, subcrenata, vel rufo-articulata ; anfr. 
4'/ 2 convexi, ultimus circa umbilicum mediocrem, subinfundi- 
buliformem distinctius sulcatus; apertura subcircularis , intus 
concolor, nitida; perist. acutum, tenue, expansiusculum, mar- 
ginibus subcontiguis, callo brevi angulatim junctis. — Operc. 
testaceum, immersum, extus concaviusculum , anfr. 5, linea 
subelevata discretis. — Diam. maj. 10'/ 2 ? min. 9, alt. 8 mill. 
Ap. 5 mill, longa. (Coll. Nr. 17.) 
Cyclostoma spur cum Sow. in Proc. Zool. Soc. 1843. p. 60. *) Nec Gratel 
_ _ Sow. Tlies. N. 26. p. 99. t. 24. f. 75. 76. 
— conoidcum Pfr. in Zeitschr. f. Malak. 1846. p. 44. 
— — Chemn. ed. II. Cycl. N. 99. p. 101. t. 13. 
f. 19-21. 
— varium Barcl. mss.? 
Tropidophora conoidea Pfr. in Zeitschr. f. Malak. 1847. p. 107. 
Cyclotus conoidcus Gray Catal. Cycloph. p. 10. N. 25. 
— — Pfr. Consp. N. 30. 
Habitat in insulis Seychellis (Sowerby); in America meridio- 
nali (Fitzroy, Gray), Isle de France (D. Barclay: C. varium 
in Mus. Cuming.). 
* * 
* 
*) T. suborbiculari , rufescenti-fusca , spira prominula; anfr. 4 rotun- 
datis, albicante-subvariegatis, spiraliter striatis et subcarinatis, sutura distincta, 
subcrenulata ; apertura circulari, peritremate albo, tenui, subreflexo ; umbilico 
parvo; operculo crassiusculo, anfractibus quinis. (Sow. 1. c.) 
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