CYCLOSTOMUS 8. 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 1cone.) 
Cyclostoma consanguineum Sow. in Proc. Zool. Soc. 1873. p. 718. t. 59. f. 3. 
Habitat Madagascar. 
* 
55. Sowerbyi (Cyelostoma) Pfr. (Coll. 21.) I. 212. II. 119. III. 
128. —  Morelet Sér. conch. II. 1860. p. 103. —  Pütel Cat. p. 
122. —  CQyclostoma megacheilus Sow. — Ins. Comorens. 
8. (9! 
56. aplustre (Cyclostoma) Sow. I. 212. IL. 119. III. 128. — Morelet 
Sér. conch. II. 1860. p. 103 *). — Z'ropidophora aplustris. Gray. — 
Cyclostomus aplustris Ad. — Madagascar, Nossi-Bé. 
57. C. filostriatus Sowerhy. 
,C. testa globoso-conica, solidiuscula, modice umbilicata, 
albida, ferrugineo tincta, castaneo spiraliter zonata; anfractibus 
rotundatis, malleatis, spiraliter obsolete liratis, concentrice con- 
spieue filo-striatis, striis ad suturas subpheatis; 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. 198. — 
Pütel Cat. p. 122, — Var.: Cyclostoma Harveyanum Sow. —  Cy- 
clostomus Harweyanus Pütel Cat. p. 192. — 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 (Cyelostoma) Pfr. I. 214. IL. 120. III. 128. — 
Habitat? 
62. fulvescens (Cyclostoma) Sow. (Coll. 22.) I. 215. II. 120. III. 
128. —  Morelet Sér. conch. II. 1860. p. 104 var. f, pallidior, 
fulvo-zonata: Port-Leven. -— Madagascar. 
63. ? ietericus (Cyclostoma) Sow. I. 81 (Cyclophorus?). II. 120. III. 
128. — Habitat? 
*) ,Opereulum duplicatum, 6-spirale, anfraetu ultimo rapide crescente; 
superne testaceum, sordide albidum, eximie flexuoso-striatum; spira depressa, 
concaviuscula, nucleo subcentrali corneo; subtus corneum, planum, nitidule 
fuscidulum.* (Mor.) 
