354 LIEUT.-COL. H. H. GODWIN-AUSTEN ON [June 18, 
This is a large species of this genus, and its sculpture is a notice- 
able character, from the lirate ribbing being so wanting in the sharp 
definition it generally presents in other species. 
62. GEORISSA HUNGERFORDI, n. sp. (Plate XXXIX. fig. 9.) 
Shell globosely conical, solid, imperforate ; sculpture spirally lirate, 
about 15 ribs on the last whorl, all sharply defined, but becoming 
ill-defined towards the apex, which is quite smooth ; spire conical ; 
apex papillate; suture well impressed; whorls 4, very convex; 
aperture semi-ovate, subvertical; peristome simple, outer margin 
rounded, straight on the columellar side. 
Size: maj. diam. 1°2; alt. axis 1°38 milim. 
Hab. Borneo (Sir H. Low). In collection of Dr. Hungerford. 
TRUNCATELLA, Risso. 
63. TRUNCATELLA MARGINATA, Kiister. 
Truncatella marginata, Mart. u. Chemn. Conch.-Cab. ed. ii. pl. il. 
firs. 24-26 (1855). 
64. TRUNCATELLA AURANTIA, Gould. 
Truncatella aurantia, Gould, Exped. Shells, p. 39. 
Hab. Maugsi, near Borneo. 
Hyprocena, Parreyss. 
65. Hydrocena cornea, Pfr. 
Hydrocena cornea, Pfr. P. Z.S. 1854, p. 306. 
Not Assiminea (Optediceros) cornea, Leith, Journ. Bombay Br. 
R. As. Soe. v. p. 145 (1853). 
OmpuHatotropsis, Pfr. 
66. Omphalotropsis glabrata, Pfr. 
Hydrocena (Omphalotropsis) glabrata, Pfr. P. Z. 8. 1854, p. 308. 
Hab. Borneo (Pfr.). 
67. Omphalotropsis radiata, Pfr. 
Hydrocena (Omphalotropsis) radiata, Ptr. P. Z. S. 1854, p. 308. 
Hab. Borneo (Pfr.). 
68. Omphalotropsis carinata, Lea. 
Assiminea carinata, Lea, Proc. Acad, Nat. Sci. Philad. vii. p. 111 
(1857); Ann. Mus. Civ. Genova, p. 447, pl. vil. figs. 7—9. 
Hab. Siam (Lea); Borneo (Geale, coll. Mousson). 
Subgenus Orrreptceros, Blanford. 
69. Omphalotropsis paladilhi, Issel. 
Omphalotropsis paladilhi, Issel, Moll. Born. Ann. Mus. Civ. 
Genova, vi. p. 448, pl. vii. figs. 10-12 (1874). 
Hab. Sarawak (Doria and Beccari). 
