210 REALIA $. 2. 
i1. R. marginata (Hydrocena) Morelet. 7 
» I. subimperforata, eloboso-conica, solidula, corneo-rubella 
vel fulvastra; spira variabilis, apice integra; sutura late et 
pallide marginata; anfr. 6 convexiusculi, ultimus spiram valde 
superans, inflatus, subglobulosus; apertura subverticalis, semi- 
ovalis; perist, rectum, margine columellari calloso, appresso. 
— Opereulum paucispirum, rufum. — Long. 6—8, diam. 
4—D!/, mill.* (M.) 
Hydrocena marginata. Morel. in Journ. Conch. XIII. 1865. p. 226. 
Habitat Siam. 
* 
12. vulpina (Hydrocena) Pfr. (Coll. 7.) II. 156. III. 172. — Fox 
Islands. 
13. ? brevicula (Hydrocena) Pfr. II. 156. III. 172. —  Assiminea 
brevicula Mart. 1866. p. 205; ease 1869. p. 163. — Singapore. 
14. albescens (Hydrocena) Pfr. (Coll. 8.) II. 157. III. 172. — Ass:- 
minea albescens Mart. 1866. p. 206. —  Omphalotropis albescens 
Pease 1869. p. 153. —  Atropis albescens Pease 1871. p. 476. — 
Ins. Rapa s. Opara. 
15. Vescoi (Hydrocena) Dohrn. (Coll. 9.) III. 172. — Martens & 
Langk. Dou. Bism. p. 58. t. 3. f. 20. —  Omphalotropis Vescoi 
Pease 1869. p. 153. — Atropis Vescoi Pease 1871. p. 476.-— "Tahiti. 
16 R. coturnix (Hydrocena) Crosse. 
»l. perforata, turbinato-conica, tenuis, sublaevigata, cor- 
nea, albido minute et obscure guttata; spira conica, subacuta; 
sutura impressa; anfr. 6 planiuseulhi, ultimus spiram sub- 
aequans, ventrosus; apertura parum obliqua, angulato-ovalis; 
perist. subeontinuum, simplex, vix incrassatum, marginibus 
callo (in adultis speciminibus crassiuseulo) junctis, columellari 
subealloso, expansiusculo. — Long. 5!/j, diam. maj. 4!/;; 
apert. 2!/, mill. longa, 13/, lata.* (Cr. — Coll. Nr. 10.) 
B. Fascis longitudinalibus rufis et punctis albidis obscure 
variegata. 
Hydrocena coturniz Crosse in Journ. Conch. XV. 1867. p. 181. t. 7. f. 5. 
Omphalotropis coturniz Pease in Journ. Conch. XVII. 1869. p. 149. 
Habitat Noumea Novae Caledoniae. 
* 
17. solidula (Hydrocena) Pfr. (Coll. 11.) II. 157. III. 172. — Assi- 
minea solidula. Mart. 1866. p. 206. —  Omphalotropis solidula Pease 
1869. p. 154. —  Atropis solidula .Pease 1871. p. 476. — Lord 
Hood's Island. ' 
