8:30 



7. Gena stiugosa (pi. clxxiii. f. 11, 12), A. Adams, Pro. 

 Zool. Soc. Feb. 1850. 



G. testa, haliotoidea, ovato-oblonga, dorso subplanata, tota stri- 

 ata, striis irregularibus, subconfertis, olivacea, lilaceo alboquc varia, 

 fasciis subfuscis, pallidis alternantibus, longitudinaliter ornata; 

 labro baud sinuoso. 



Dorsum flat; surface entirely striated, olivaceous-lilac, variegated 

 with white, and with alternating pale and fuscous stripes. 



Rab. — — ? (Mus. Cuming.) 



8. Gena nebulosa (pi. clxxiii. f. 23), A. Adams, Pro. Zool. 

 Soc. Peb. 1850. 



G. testa haliotoidea, ovato-oblonga, dorso tota striata, alba, rufo- 

 f usco nebulosa ; spira prominula, anfractibus angulatis j apertura 

 elongata, ovah; columella callo crasso rimam umbilicalem obte- 

 gente. 



Striated, white, clouded with reddish-brown; spire prominent; 

 whorls angulated ; columella with a thick callus covering the um- 

 bilical fissure. 



Australia. (Mus. Cuming.) 



9. Gena lintricula (pi. clxxiii. f. 22), A. Adams, Pro. Zool. 

 Soc. Peb. 1850. 



G. testa haliotoidea, oblonga, dorso convexa, tota. tenuissime 

 striata, tenui, fragili, carneola, rubro maculata ; spira subtermi- 

 nali, minima, ad latus decumbente; apertura aperta, valde elon- 

 gata. 



Shell thin, brittle, striated, flesh-coloured, spotted with red; 

 apex subterminal, small, laterally inclined ; aperture greatly elon- 

 gated. 



Calapan, island of Mindoro ; on smooth stones, nine fathoms. 

 (Mus. Cuming.) 



10. Gena lineata (pi. clxxiii. f. 26, 27), A. Adams, Pro. 

 Zool. Soc. Peb. 1850. 



G. testa subturbinacea, solida, laevi, polita, convexa, ovali, car- 

 neola, lineis rubris longitudinalibus ornata ; spira prominula, an- 

 fractibus rotundatis ; apertura subrotundata ; columella planulata, 

 eallosa ; labro simplici. 



Solid, polished, convex, pink, with longitudinal red lines ; spire 

 prominent, whorls rounded ; aperture subcircular ; columella 

 callous, rather flattened. 



Hab. ? (Mus. Cuming.) 



