OTINA. 13 
epidermide; spira minuta, mucronulata; anfr. fere 3, penultimus 
turgidus, ultimus semiglobosus; apertura diagonalis, oblongo- 
rotundata, intus margaritacea; perist. vix interruptum , mar- 
gine dextro recto, superne valde curvato, columellari dilatato, 
excavato, albo. — Long. 12, diam. 9, alt. 5!/; mill. Ap. 10 
mill. longa, 12/, lata. (Mus. Cuming.) 
Otina fusca .4. Adams in Proc. Zool. Soc. 1851. p. 225.*) 
— —  H. et 4. Adams Gen. rec. Moll. IL. p. 250. 
Habitat Benguela. 
SunrAM. Il. 
Melampea. 
Mollusca Auriculacea amphibia vel in aqua submarina 
prope ostia fluviorum degentia, quorum testa peristomate recto, 
acuto praedita est. Columella semper plicata; paries apertura- 
lis et peristomatis margo dexter dentati vel inermes. 
Melampea Pfr. in Zeitschr. f. Malak. 1853. p. 8 et in Malak. Bl. 1854. 
p: LI6. 
Melampinae H. et 4. Adams Gen. rec. Moll. II. p. 242. 
lnter genera ab Auctoribus condita in hae subfamilia 
adoptanda videntur sequentia: Melampus, Marinula et Pedipes, 
et forsan Leuconia, ob affinitatem intimam cum genere Alezia 
inter Auriculea enumerata. 
Il, Melampus Montfort. 
"Testa ovato-conoidea vel subovata, solida; spira brevius- 
cula; apertura elongata, angusta; columella distinete plicata; 
paries aperturalis inermis vel dentibus plicisve 1—95 munitus; 
peristoma rectum, margine dextro acuto, intus inermi vel 
transverse costato aut sulcato. **) 
Melampus Montfort 1810. Conch. syst. II. p. 319. ***) 
*) O. testa magna, solida, semiopaca, fusca, sine epidermide, dorso 
convexa, longitudinaliter subplicata, transversim tenuiter striata , labio lato, 
plano et excavato; labro recto, non reflexo aut expanso. — The large size 
of this species, and its convex form, distinguish it from O. ois. and its 
absence of bands, and the outer lip not being expanded, from O. zonata 
Gould, the only two species at present known to me. (A. Adams l. c.) 
**) De animalis interna structura conferatur commentatio Clari Sou- 
leyet in Voy. de la Bonite. Zool. IL. p. 518. 
***) Coquille libre, univalve, conique; à spire réguliere, écrasée; point 
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