HYDROCENA §. 6. 7. 167 



munitus ; apertura vix obliqua, subangulato-ovalis ; perist. sim- 



plex, rectum, marginibus convergentibus. — Operc. fuscum. — 



Long, 5, diam. 3 mill. Ap. 2 mill. longa. (Coll. Nr. 350.) 



Hxjdrvcena vestita (Omphalotropis) /y)'. in Proc. Zool. Soc. 1855. p. 106. 



Habitat in Nova Seelandia. 



* 



45. nillltilirata Pfr. (Omphalotropis Pfr. in l'roc. 



1854. p. 308. — Jd. Gcn. p. 300. — Cyctosl. mid- 

 tiltratnm Pfr. in Proc. 1852. p. 150. — Ompha- 

 lotropis miiUdirata Pfr. Pneum. n. 11. — /icalta 

 miiltilirnta Gruy Phan. p. 222.) Mon. p. 311. 



§. 7. 



46. aurantinca Dei^li. (Coll. 351. — Omphalotropis 



/'//•. in Proc 1854. p. 307 — Ad. Gen p. 300. — 

 Omplialotropis auraniiaca Pfr. in Proc. 1852. p. 

 151. — Pneum. n. 7. — Ileaiia aurantiaca Gray 

 Phan. p. 220.) - - 309. 



47. ruh**nM Quoy et Oaim. (Coll. 352. — Om- 



phalotropis Pfr. in Proc. 1854. p. 30". — ^rf. Gen. 

 p. 300. t. 87. f. 2. — Rcalia rulwns M. E. Gray 

 Fig. Moll. Anim. t. 311. f. 11 ex Quoy. ~ ('ray 

 Phan, p. 220. — Omplidlolropis rubens Pfr. in 

 Proc. 1852. p. 151. — Pfr. Pneum. n. 8 — Cy- 

 clost. liangu Pot. et Micli.J - - 309. 



48. II. Ciuaniensis Pfr. 



T. perforata, ovato-conica, soiidula, conferte striata, opaca, 

 carnea, rufo-submarmorata et lasciata; spira coiiica , acuta ; 

 sutura subcanaliculata ; anfr. 5V'o planiusculi, ultimus spira vix 

 brevior, infra medium carinatus, circa perforationem carina 

 compressa munitus; apertura parum obliqua, ovaiis; perist. 

 tenue, margine dextro expansiusculo , basali in carinam um- 

 bilicalem producto, columeilari vix dilatato. — Long. C/a, 

 diam. 4 mill. Ap. 31/2 mill. longa, 2»/3 lata. (Coll. Nr. 353.) 

 Ilydroccna Gvaniensis (Omphalotropis) Pfr. in Proc. Zool. Soc. 1857. 

 p. 113. 

 Habitat in insula Guam. 



49. expnnstilabria Pfr. (Coll. 354. — Omphalotro- 

 pis Pfr. in Proc. 1854. p. 309. — Jd. Gen. p. 300. 

 — Cyclost. expansilahre Pfr. in Proc. 1852. p. 

 150. — Cheinn. ed. nov. p. 297. t. 39. f, 17— 19. — 

 Realia expansdahris Gray Phan. p. 223.) . . . Mon. p. 312. 



