136 
MEGALOMASTOMA §. 1. 2. 
fasciatus, basi subattenuatus, vix brevissime solutus; apertura I 
verticals, angulato-ovalis, integra, intus luteo-fulvida, fascia 
externa paululum transmeante ; peristoma incrassatum , vix i 
liberum, marginibus continuis, columellari cum externo ad 
insertionem angulum formante, basali protracto, valde incras- 
sato, reflexo, externo crassiusculo, reflexo. — Long. 19, diam. 
ma j- 2 m ill. Apert. 6 V 2 mill, longa, vix 5 lata (absque 
peristomate).“ (C.) 
Dacrystoma*) arboreum Crosse Fisch. in Journ. Conch. XIX. 1871. 
p. 332. 
Habitat ad ripas fluminis Tsidsoubon insulae Madagascar 
(Grandidier). 
§. 2 . 
4. complanatum Pfr. II. 80. III. 86. — Cuba. 
5. bituberculatum (Cyclostoma) Sow. (Coll. 1.) I. 127 II 80 
III. 86. — Cuba. 
6. procer Poey. (Coll. 2.) II. 81. III. 86. — Patel Cat. p. 120. — 
Isla de Pinos Cubae. 
7. ventricosum (Cyclostoma) Orb. (Coll. 3.) I. 128. II. 81. III. 
86. — Patel Cat. p. 120. — Farcimen ventricosum Trosch. — Cuba. 
8. alutaceum (Cyclostoma) Menke. (Coll. 4.) I. 129. II. 81. III. 
86. — Patel Cat. p. 120. — Cuba. 
9. digitale Gundl. (Coll. 5.) II. 81. III. 86. — Patel Cat. p. 120. 
— Cuba. 
10. Mani (Cyclostoma) Poey. (Coll. 6.) I. 128. II. 82. III. 87. — 
Patel Cat. p. 120. — Cuba. 
11. Gundlachi Pfr. (Coll. 7.) II. 82. III. 87. — Patel Cat. p. 120. 
— Cuba. 
12. leoninum Pfr. (Coll. 8.) II. 82. III. 87. — Patel Cat. p. 120. — 
Cuba. 
13. auric ulatum (Cyclostoma) Orb. (Coll. 9.) I. 129. II. 82. III. 
87. — Patel Cat. p. 120. — Cyclostoma idolum Fer., bicolor Gould, 
solenatum Poey. — Cuba. 
14. apertum Poey. (Coll. 10.) II. 83. III. 87. — Patel Cat. p. 120. 
— Cuba. 
15. semi nudum Poey. (Coll. 11.) II. 83. III. 87. — Patel Cat. p. 120. 
— Cuba. 
16. tortum (Turbo) Wood. (Coll. 12.) I. 126. II. 83. III. 87. — 
Patel Cat. p. 120. — Cyclostoma tortum Gray. — Farcimen tortum 
Trosch. — Var.: Megalomastoma ungula Poey. (Pfr. II. 84.) — 
Cuba. 
*) Dacrystoma novum genus : „testa vix perforata, oblongo-turrita, soli- 
dula, striata, epidermide tenui induta; anfr. sat numerosi ; apertura angulato- 
ovalis ; peristoma vix brevissime solutum, continuum, incrassatum, reflexum, 
margine basali protracto. — Operc. ? — Genera Megalomastoma et Ompha- 
lotropis nostro generi valde vicina sunt, alterum forma testae et crassitudine 
peristomatis, alterum apertura angulato-ovali." 
