NAYTIA, ALECTR10N. 27 



Mr. Marrat considers his N. noduloxa probably a deep-water 

 form of N. granifera: it is not figured. N. obliqua, Hombr. 

 and Jacq. (fig. 40), N. obliqua. Pease (unfigured),and N. onerata, 

 Desh. (fig. 41) are synonyms. 



Subgenus Naytia. .11. and A. Adam.?. 

 N. (iLAiuiATA, Sovvb. PI. 8, figs. 42, 43. 



Light fawn-color, highly polished, with sometimes, traces of 



ribs at the sutures. Length, -5-'6 inch. 



W. Coast of Africa. 



Described doubtfully as a Strombux. N. obliqaa, Kiener (lig. 

 43), is a synonym. 



N. (iRANA. Lam. PL 8, fig. 44. 



Yellowish white, brown spotted at the* sutures, and with inter- 

 rupted revolving brown lines. Length, '4 inch. 



Mediterranean tiea. 



Submenu* Alectrion, Montf. 

 N. ({LANS. Linn. PL 8. tigs. 45-49, 52-54. 



Yellowish white, clouded with yellowish brown, encircled with 

 equidistant, narrow, chestnut-colored lines. 



Length, 1-5-2 inches. 



Japan, Philippines, Australia. 



This is the largest species in the genus : it either varies much, 

 however, in size and proportion, or else the following forms 

 should be considered distinct. As they all possess the revolv- 

 ing dark-colored lines, I prefer to consider them as simple dwarf 

 varieties. . 



Yar. LATA, Tryon. Fig. 46. 



Broadly ovate, approaching N. niidabili*, L. in form. 



Length, 22 mill. 



Three specimens, without locality, in the Museum 'of the 

 Philadelphia Academy. 



Yar. ELEGANS, Kiener. Figs. 47-49. 



Whorls inconspicuously shouldered beneath the sutures. 

 Besides the revolving brown lines the surface is clouded or 

 striped longitudinally, and revolving series of quadrangular 

 spots frequent^ occur upon the shoulder and middle of the 



whorl. Length, 22-27 mill. 



So. Australia. 



