MEGALOMASTOMA $. 3. 135 
Cyclostoma pauperculum Sow. 'Thes. Suppl. N. 196. p. 166 *. t. 31 B. 
f. 318. 
Megalomastoma pauperculum Pfr. Consp. N. 198. 
Habitat Bhotan in regione Sikkimensi Himalayae (Benson). 
19. WF. Amtillarum Sowerby. 
T. breviter rimata, turrita, longitudinaliter confertim. cos- 
tulato-striata, epidermide nitidula, corneo-fusca induta; spira 
elongata, apice obtusiuseula; sutura profunda; anfr. 8 convexi, 
ultimus penultimo angustior, '/, longitudinis subaequans, basi 
carina elevata, funiformi munitus; apertura parum obliqua, 
subcircularis, intus nitida, fulvida; perist. subduplicatum, solu- 
tum, continuum, superne angulatum, breviter expansum, mar- 
gine supero sinistro subexciso. — Operc. parum immersum, 
fusco-luteseens. — Long. 17, diam. 5'/, mill. Ap. intus 3*7, 
mill. longa. (Coll. Nr. 95.) 
Cyclostoma Antillarum Som. 'Thes. N. 168. p. 150. t. 28. f. 180. *) 
- — Chemn. ed. II. N. 132. p» 1275. ts 152 f: 15916. 
Megalomastoma brunnea Guild. in Swains. Malac, p. 333. f. 97 g. h. i. 
(auct.) 
— Antillarum Pfr. iu Zeitschr. f. Mal. 1847. p. 109. 
Consp. N. 199. 
— — Gray Catal. Cycloph. p. 31. N. 5. 
Habitat in insulis Tortola et St. Vincentii. 
Obs. Cl. Gray huc refert Megalomastoma | suspensum | Guild. ct 
Smains. (Malac. p. 186. f. 29.), quod autem ex icone valde diversum vide- 
tur. Apertura in hac superne minime angulata apparet et lirae spirales 
testam cingunt. — Cl. Benson e contrario in illa testa, quam nomine 
Cyclostomatis Guildingiani descripsi, Megalomastoma suspensum  quae- 
rendum esse in litteris suspicatus est. 
*) T. turrita, apice obtusiusculo; anfr. 8 rotundatis, longitudinaliter 
striatis, epidermide cornea instructa; sutura distincta; apertura circulari; 
peritremate reflexo- patente, albicante, superne submucronato, latere umbili- 
cali laté emarginato; umbilico parvo, margine elevato, crenulato ; operculo 
circulari, spirali, corneo, anfractibus confertis, — "Tortola. (Sow. l c.) 
