ALYCAEUS §. 6—8. HYBOCYSTIS. OPISTEIOSTOMA. 391 
subtiliter costata. Spira depresso- conoidea, apice perobtuso, 
sutura bene impressa. Anfr. 4, rotundati, ultimus modice in- 
flatus, ad basin tubuli suturalis constrictus, crista conspicua 
subverticali immediate pone aperturam munitus. Constrictio 
laevigata; tubulus suturalis elongatus, crassiusculus. Apertura 
o'oliqua; peristoma rotundatum, margine supero et externo 
(n?,c columellari) profunde undulatum, limbo externo parvulo, 
leviter expanso. Operculum multispirale , antice concavum, 
tubere parvulo prominente postice instructum. — Diam. maj. 
0,18, min. 0,16, alt 0,11; diam. apert. 0,08; tubulus suturalis 
0,75 poll. 44 (A. angl.) 
Alycieus crenatus Godwin Austen in Journ. As. Soc. Beng. XL. 1871. p. 
90. t. 3. f. 5. 
— — Hanl. Sf Theob. Conch. Inch t. 103. f. 2. 3. 
Habitat „ Burrail Range, North -Cachar“ in 5000' alt., 
Indiae. 
§• 7 . 
45. amphora Bens. — Conch. Inch t. 91. f. 2. 3. 
46. urnula Bens. — Austen 1871. t. 5. f. 4. — Conch. Inch t. 91. f. 8. 9. 
51. Feddenianus Theob. — Conch. Ind. t. 91. f. 1. 4. 
§. 8 . 
53. vestitus Blanf. — Conch. Ind. t. 103. f. 4. 
54. crenulatus Bens. — Conch. Ind. t. 97. f. 1. 4. 
XVII. Hybocystis Benson. 
(p. 67.) 
1. gravida Bens. — Megalomastoma gravidum Hanl. Sf Theob. Conch. 
Ind. I. t. 7. f. 1. 
XVIB. Opisthostoma Blanford. 
(p. 68.) 
1. Nilgirica Blanf. — Hanl. fy Theob. Conch. Ind. VI. t. 117. f. 10. 
2. Fairbanki Blanf. — Conch. Ind. t. 117. f. 8. 
4. macrostoma Bedd. — Conch. Ind. t. 117. f. 9. 
