REALIA §. 2. 
211 
is R. caledonica (Hydrocena) Crosse, t 
„T. angnste umbilicata, turbinata, subglobosa, solidula, 
laevigata, nitida, pallide castanea, albido plus minusve macu- 
lata; spira subconica, apice obtusulo; sutura impressa; anfr. 5 
convexiusculi , ultimus spiram subaequans, valde ventrosus; 
apertura parum obliqua, angulato-ovalis; perist. subcontinuum, 
simplex, subincrassatum, albidum, marginibus callo crassiusculo 
junctis, columellari imprimis ad basin expansiusculo, umbilici 
partem obtegente, externo attenuato. — Operc. tenue, corneum, 
paucispirum, luteo-albidum. — Long, vix 4, diam. maj. B 1 ^ 
mill. Apert. 2 mill, longa, l 2 / 3 lata.“ (C.) 
Hydrocena caledonica Crosse in Journ. Conch. XVII. 1869. p. 24. 
t. 2. f. 4. 
Habitat circa Noumea Novae Caledoniae, nec non in in- 
sula Nou. 
19. oceanica (Cyclostoma) Hombr. & Jacq. f II. 157 (Hydrocena). 
III. 172. — Omphalotropis oceanica Pease 1869. p. 154. — Ins. 
Vavao. 
20. gutta (Hydrocaena) Shuttl. (Coll. 12.) I. 305 (Realia?). II. 157 
(Hydrocena). III. 172. — Morelet Moll terr. A 9 or. p. 214. — 
Mouss. Canar. p. 147. — Liarea ? gutta Gray. — Hydrocena gutta 
Patel Cat. p. 124. — • Ins. Canar. et Azor. 
21. Noticola (Hydrocena) Bens, f II. 158. III. 172. — Omphalo- 
tropis •? Noticola Pease 1869. p. 155. — Promont. Bonae Spei. 
22. R. Hidalgos (Hydrocena) Gassies. t 
„T. imperforata, minima, ovato-conica, acuta, nitida, soli- 
dula, laevigata, luteo-rufula; anfractus 5 — 6 convexi, rapide 
accrescentes , ultimus 2 / 3 1 / 4 (sic!) longitudinis subaequans; 
sutura vix canaliculata , alba; spira brevis; apertura ovato- 
rotundata; peristoma simplex, vix incrassatum, disjunctum, 
margine columellari incrassato, recto, non truncato in adultis; 
intus luteo - rufescente , nitente. — Operculum typicum. — 
Long. 3, diam. 2 mill." (G.) 
Hydrocena Hidalgoi Gass, in Jonrn. Conch. XVII. 1869. p. 78. 
Habitat in insula Art Novae Caledoniae. 
23. Purchasi (Hydrocena) Pfr. (Coll. 13.) III. 172. — Pease 1869. 
p. 138. — Nova Seelandia. 
14 
