GENA. 45 



G. VARIA A. Adams. PL 55, figs. 19, 20, 21. 



Shell haliotoid, ovate-oblong, polished, back equally convex, left 

 side striated, buff, varied with white and red ; spire rather prominent, 

 erect, acuminate. 



A pretty little species, usually confounded with G. lutea, but 

 easily distinguished when its profile is examined ; the dorsum is 

 equally convex and polished, and the spire is rather prominent, erect 

 and acuminated. (Ad.) 



Calapan, Island of Mindoro ; Acapulco ; on the sands. 



G. varia AD., P. Z. S. 1850, p. 37 ; Thes. Conch, ii, p. 828, t. 173, 

 f. 6-8. 



G. CALLOSA Fischer. PI. 51, figs. 1, 2, 3. 



Shell complanate, ovate, elongated, transversely delicately striate ; 

 whorls 2 ; apex somewhat prominent ; aperture oblong, ear-shaped, 

 right lip simple, somewhat excavated in the middle ; columella mar- 

 gined, strong, thickened, callous and provided with a tooth-like 

 tubercle ; margins continuous, joined by a callus. 



Length 11, breadth 7 mill. (Fischer.') 



Suez. 



SAVIGNY, Descript. de 1'Egypte, t. v, f. 10. Gena callosa FISCHER, 

 Journ. de Conchyl. 1871, p. 218. 



** * 

 G. ORNATA A. Adams. PI. 55, figs. 29, 30. 



Shell subturbinate, oval, smooth, polished ; reddish-brown, orna- 

 mented with longitudinal black lines articulated with white ; back 

 convex ; spire rather prominent, rosy ; aperture oval, columella 

 arcuate, simple ; outer lip reflexed, posteriorly subflexuous. (Ad.^) 



Ticao, Philippines, on the reefs. 



G. ornata A. AD., P. Z. S. 1850, p. 38 ; Thes. Conch, ii, p. 831, t. 

 173, f. 24, 25. 



This and the next species are more spiral than other species of 

 Gena. They may belong elsewhere. 



G. LINE ATA A. Adams. PI. 55, figs. 17, 18. 



Shell subturbinate, solid, smooth, polished, convex, pink, with 

 longitudinal red lines; spire rather prominent, whorls rounded; 

 aperture subrotund ; columella planulate, callous, rather flattened ; 

 lip simple. (Ad.') 



Habitat unknown. 



