HYDROCENA §. 6. 7. 
167 
munitus ; apertura vix obliqua, subangulato-ovalis ; perist. sim- 
plex, rectum, marginibus convergeotibus. — Operc. fuscum. — 
Long. 5, diam. 3 mill. Ap. 2 mill, longa. (Coll. Nr. 350.) 
Ihjdroccna vcstita (Omphalotropis) Pfr. in Proc. Zool. Soc. 1855. p. 106. 
Habitat in Nova Seelandia. 
* 
45. multilirata Pfr. (Omphalotropis Pfr. in Proc. 
1854. p. 308. — Ad. Gen. p. 300. — Cyclosl. rnul- 
tiliralum Pfr. in Proc. 1852. p. 150. — Ornpha- 
loir op is multilirata Pfr. Pneum. n. 11. — Realia 
multilirata Gray Phan. p. 222.) ...... Mon. p. 311. 
§• 
46. aurantiaca Uesh. (Coll. 351. — Omphalotropis 
Pfr. in Proc 1854. p. 307 — Ad. Gen. p. 300. — 
Omphalotropis aurantiaca Pfr. in Proc. 1852. p. 
151. — Pneum. n. 7. — Realia aurantiaca Gray 
Phan. p. 220.) ............. - - 309. 
47. rubeiiM Quay et Galm. (Col!. 352. — Om- 
phalotropis Pfr. in Proc. 1854. p. 307. — - Ad. Gen. 
p. 300. t. 87. f. 2. — Realia rubens M. E. Gray 
Fig. Moll. Anim. t. 311. f. 11 ex Quoy. — Gray 
Phan. p. 220. — Omphalotropis rubens Pfr. in 
Proc. 1852. p. 151. — Pfr. Pneum. n. 8. — Cy- 
dost. Rang'd Pot. et Mich.) ........ - - 309. 
48. M. Quamensfs Pfr* 
T. perforata, ovato-conica, solidula, conferte striata, opaca, 
carnea, rufo - submarmorata et fasciata; spira conica , acuta; 
sutura subcanaliculata ; anfr. 5V 2 planiusculi, ultimus spira vix 
brevior, infra medium carinatus, circa perforationem carina 
compressa munitus; apertura parum obliqua, ovalis ; perist. 
tenue , margine dextro expansiusculo , basali in carinam um- 
bilicalem producto, columellari vix dilatato. — Long. 6Va» 
diam. 4 mill. Ap. 3 A / 2 mill, longa, 2 1 / 3 lata. (Coll. Nr. 353.) 
Ihjdroccna Guarnensis (Omphalotropis) Pfr. in Proc. Zool. Soc. 1857. 
p. 113. 
Habitat in insula Guam. 
* 
49 . expansiSabrls Pfr. (Coll. 354. — Omphalotro- 
pis Pfr. in Proc. 1854. p. 309. — Ad. Gen. p. 300. 
— Cyclosl. expansilabre Pfr. in Proc. 1852. p. 
150. — Chemn. ed. nov. p. 297. t. 39. f. 17 — 19. — 
Realm expansdabris Gray Phan. p. 223.) . . . Mon. p. 312. 
