278 CISTULA $. 7. 
basi distinctius spiraliter suleatus; apertura vix obliqua, angu- 
lato-ovalis; perist. album, duplex :internum porrectum, exter- 
num brevissime patens, undulatum, superne in angulum pro- 
ductum. —. Opere. eartilagineum , lamina tenui testacea, sub- 
libera extus munitum, nucleo parum excentrieo. — Long. Eh. 
diam. 5 mill. Ap. 3'/, mill. longa, 2?/, lata: (Coll. Nr. 199.) 
Cyclostoma cinclidodes Pfr. in Proc. Zool. Soc. 9 Mart. 1852. 
— — Chemn. ed. 1l. N. 394. t. 47. f. 25. 26. 
Habitat in insula Haiti (Sallé). 
XXV. Chondropoma. Pfr, 
Operculum ovale, subcartilagineum, planum, anfractibus 
paucis, rapide aecrescentibus, 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 
Cyclostomalis spec. 4uctt. 
Conspectus specierum. 
A. Peristomate simplice 
l. tenui 
a.-late expalso 2. 9. e. dui ie CR Te IN T AMIq 
b. breviter vel vix expanso . . $.2. —  2—10. 
2. subincrassato brevi . . . . . $. 8. — 11—15. 
B. Peristomate subduplicato . . . $.4. — 16—20. 
C. Peristomate duplicato. 
1l. Umbilico aperto. 
a. Limbo externo bre . . . $. 95. — 21—28. 
b. Limbo externo late expanso . $. 6. — 29—90. 
2. Umbilico subelauso . . . . . $ *. — 231—239. 
Seals 
-—- 
[3 
pel 
1. €h. magnificum Sallé. 
T. perforata, ovato-conica, tenuis, longitudinaliter plicato- 
striata, diaphana, parum nitens, albida, taeniis varie interruptis 
