170 
CYCLOSTOMUS §. 1. 
Conspectus specierum. 
A. Carinatae (Tropidophora Trosch.) 
1. depressae 
2. turbinato-conicae, 
a. bi- vel multicarinatae 
b. unicarinatae 
B. Ecarinatae, 
1. depressae 
2. globoso-turbinatae. 
a. Peristomate reflexo, 
cc. lato 
(3. angusto 
b. Peristomate recto . . . 
3. ovato-turritae. 
a. Peristomate recto . . . 
b. — expanso. 
a. Laevigatae .... 
/?. Longitudinaliter plicatae §. 10. 
y. Decussatae . . 
§• 
1. 
Nr. 
1- 
- 12. 
§. 
2. 

13- 
- 32. 
§. 
3. 
— 
33- 
- 36. 
§. 
4. 
— 
37- 
- 40. 
§. 
5. 
41- 
- 55. 
§. 
6. 
— 
56- 
- 83. 
§• 
7. 
— 
84- 
- 94. 
§. 
8. 
— 
95- 
-106. 
§• 
9. 

107- 
-110. 
§. 
10. 
— 
111- 
-122. 
§• 
11. 
— 
123- 
-127. 
§• I- 
1. Cuvierianus (Cyclostoma) Petit. (Coll. 1.) I. 189. II. 113. III. 
124. — Patel Cat. p. 122. — Tropidophora Cuvieriana Trosch. — 
Madagascar. 
2. occlusus (Cyclostoma) Morch. (Coll. 2.) II. 113. III. 124. — 
Patel Cat. p. 122. — Madagascar. 
3. formosus (Cyclostoma) Sow. I. 190. II. 113. III. 124. — Ma- 
dagascar. 
4. De-Burghiae (Cyclostoma) Reeve, f III. 124. — Madagascar. 
5. cariniferus (Cyclostoma) Sow. I. 191. II. 144. III. 125. — 
Morelet Ser. conch. II. 1860. p. 105*). — Patel Cat. p. 122. — 
Var. : Cyclostoma Spectabile Petit. — Madagascar. 
6. articulatus (Cyclostoma) Gray. (Coll. 3.) I. 191. II. 114. III. 
125. — Morelet Ser. conch. II. 1860. p. 99: Madagascar. — Patel 
Cat. p. 122. — Crosse in Journ. Conch. XXII. 1874. p. 233. — 
Cyclostoma filosum Sow., Terveriana Grat. — Ins. Rodriguez prope 
Mauritius. 
7. De shayesianus (Cyclostoma) Petit. I. 192. II. 114. III. 125. 
— Madagascar. 
8. Abeillei (Cyclostoma) Grat. f I. 193. II. 114. III. 125. — 
Madagascar. 
9. modestus (Cyclostoma) Petit. I. 193. II. 114. III. 125. — Patel 
Cat. p. 122. — Ins. Abd-el-Goury. 
*) „ Operculum duplicatum, pagina externa testacea, concaviuscula, 
multispira, albicans, nucleo subcentrali, translucido; interna tenuis, planu- 
lata, cornea, pellucida, rufescens." (Mor.) 
