CYCLOSTOMUS §. 5. 6. 
175 
acuta; anfractibus rotundatis, concentrice subtiliter striatis, spi- 
raliter supra peripheriam lirato-striatis; umbilico valide lirato; 
apertura oblique circulari, intus atro-fusca, labro reflexo.“ 
(S.) — Operculum normale. — Diam. max. 28, alt. 19 mill, 
(ex icone.) 
Cyclostoma consanguineum Sow. in Proc. Zool. Soc. 1873. p. 718. t. 59. f. 3. 
Habitat Madagascar. 
55. Sowerbyi (Cyclostoma) Pfr. (Coll. 21.) I. 212. II. 119. III. 
128. — Morelet Ser. conch. II. 1860. p. 103. — Patel Cat. p. 
122. — Cyclostoma megacheilus Sow. — Ins. Comorens. 
§• 6 . 
56. aplustre (Cyclostoma) Sow. I. 212. II. 119. III. 128. — Morelet 
Ser. conch. II. 1860. p. 103*). — Tropidophora aplustris Gray. — 
Cyclostomus aplustris Ad. — Madagascar, Nossi-Be. 
57. C. filostriatus Sowerby. f 
„C. testa globoso-conica, solidiuscula, modice umbilicata, 
albida, ferrugineo tincta, castaneo spiraliter zonata; anfractibus 
rotundatis, malleatis, spiraliter obsolete liratis, concentrice con- 
spicue filo- striatis, striis ad suturas subplicatis; apertura ob- 
lique circulari, intus castaneo -fusca; labro albo rotunde re- 
flexo.“ (S.) — Diam. max. 25, alt. 22 mill, (ex icone.) 
Cyclostoma filo-striatum Sow. in Proc. Zool. Soc. 1873. p. 718. t. 59. f. 2. 
Habitat Madagascar. 
* 
58. asper (Cyclostoma) Pot. & Mich. I. 213. II. 119. III. 128. — 
Patel Cat. p. 122. — Var. : Cyclostoma Harveyanum Sow. — Cy- 
clostomus Harweyanus Patel Cat. p. 122. — Madagascar. 
59. pyrostomus (Cyclostoma) Sow. I. 214. II. 119. III. 128. — 
Cyclostoma haemastoma Grat. — Madagascar, Mayotte. 
60. ? sinuatus (Cyclostoma) Pfr. II. 120. III. 128. — Madagascar? 
61. ? striatulus (Cyclostoma) Pfr. I. 214. II. 120. III. 128. — 
Habitat? 
62. fulvescens (Cyclostoma) Sow. (Coll. 22.) I. 215. II. 120. III. 
128. — Morelet Ser. conch. II. 1860. p. 104 var. /$, pallidior, 
fulvo-zonata: Port-Leven. — Madagascar. 
63. ? ictericus (Cyclostoma) Sow. I. 81 (Cyclophorus?). 11.120. III. 
128. — Habitat? 
*) „Operculum duplicatum, 6-spirale, anfractu ultimo rapide crescente; 
superne testaceum, sordide albidum, eximie flexuoso-striatum ; spira depressa, 
concaviuscula, nucleo subcentrali corneo; subtus corneum, planum, nitidule 
fuseidulum.“ (Mor.) 
