278 
CISTULA §. 7. 
basi distinctius spiraliter sulcatus; apertura vix obliqua, angu- 
lato-ovalis ; perist. album , duplex : internum porrectum, exter- 
num brevissime patens, undulatum, superne in angulum pro- 
ductuin. — Operc. cartilagineum , lamina tenui testacea, sub- 
libera extus munitum, nucleo parum excentrico. — Long. 11, 
diam. 5 mill. Ap. 3 1 /* mill, longa, 2 2 / 3 lata. (Coll. Nr. 199.) 
Cyclostoma cinclidodes Pfr. in Proc. Zool. Soc. 9 Mart. 1852. 
— _ Chemn. ed. II. N. 394. t. 47. f. 25. 26. 
Habitat in insula Haiti (Salle). 
XXV. Chondropoma Pfr. 
Operculum ovale, sub cartilagineum , planum, anfractibus 
paucis, rapide accrescentibus , nucleo plerumque valde excen- 
trico. Testa oblongo - turrita , saepe truncata, rarius globoso- 
turbinata; apertura ovalis; peristoma simplex, vel magis mi- 
nusve duplicatum, subrectum, expansiusculum vel late reflexum. 
Chondropoma Pfr. in Zeitschr. f. Malak. 1847. p. 109; 1851. p. 172 ; 
Consp. p. 44. 
— Gray Catal. Cycloph. p. 55. 
Cyclostomatis spec. Auctt. 
Conspectus specierum. 
A. Peristomate simplice 
1. tenui 
a. late expanso §. 1. Nr. 1. 
b. breviter vel vix expanso . . §.2. — 2 — 10. 
2. subincrassato brevi §. 3. — 11 — 15. 
B. Peristomate subduplicato . . . §.4. — 16 — 20. 
C. Peristomate duplicate. 
1. Umbilico aperto. 
a. Limbo externo brevi . . . §.5. — 21 — 28. 
b. Limbo externo late expanso . §.6. — 29 — 30. 
2. Umbilico subclauso §.7. — 31 — 33. 
§. i. 
9 1. Cftu magiiifieiuii Salle. 
T. perforata, ovato-conica, tenuis, longitudinaliter plicato- 
striata, diaphana, parum nitens, albida, taeniis varie interruptis 
