140 
CISTULA §. 1 
Conspectus specierum* 
A. Globoso-conicae §. 1. Nr. 1 — 8. 
B. Ovato- vel oblongo-turritae. 
1. Anfractu ultimo adnato. 
a. Peristomate simplice. . . . §.2. — 9 — 12. 
b. Peristomate duplice, 
a. externo dilatato . . . . §.3. — 13 — 16. 
externo brevi §.4. — 17 — 21. 
2. Anfractu ultimo antice soluto. 
a. Peristomate subsimplice . . §.5. — 22—27. 
b. Peristomate distincte duplicate, 
a. limbo externo piano . . . §.6. — 28 - 34. 
/9. limbo externo fimbriate . §.7. — 35 — 39. 
S. 1. 
871. 1. ? platychila Pfr. (Habitat?) Pneum. II. p. 130- 
872. 2. catenata Gould. (Coll 387. — Chondropoma 
lernatum Reeve t. 9. f. 65. — Conf. Gould 
Otia conch, p. 183. — Cuba.) - - - 130. 
873. 3. Agassizi Charp. (Coll. 388. — Chondropoma 
Agasslzii Reeve t. 9. f. 64. — Cuba.) . . - - - 130. 
874 . 4 . C» MacliiiiSayi ^Mndlaeli* 
T. umbilicata, depresse globoso-conica, tenuiuscula, leviter 
lirata et costulis chordaeformibus conferte nodulato-clathrata, 
diaphana, baud nitens, fulvo-rubella ; spira breviter turbinata, 
vertice acutiusculo ; sutura subcrenata; anfr. 4^2 modice con- 
vexi, ultimus latus, depresso-rotundatus, non descendens, circa 
umbilicum latiusculum fortius liratus; apertura obliqua, sub- 
circularis, intus nitida ; perist. duplex : internum vix porrectum, 
externum superne fornicato-dilatatum, margine sinistro breviter 
patente. — Operc. Cistulae planum. — Diam. maj. 11—1372? 
min. 82/3 — 10 %, alt. 72 / 3 — 9 mill, (Coll. Nr. 389.) 
Cyclostoma Mackinlayi Gundl. in litt. 
Cisiula Mackinlayi Pfr. in Malak. Bl. VI. 1859. p. 73. 
Habitat Yateras insulae Cubae. 
5. C. arctistrin Pl*r. 
T. late umbilicata, depressa, tenuiuscula, arctissime costu- 
875 . 
