394 IRAVADIA-FENELLA. 



wliorls 9-10, slopingly flattened, suture inconspicuous ; lip nodosely 

 varicose. Length, 4"5 mill. 



Pt. Canning and Delta of the Irawady. 



I. TROCHLEARis, Gould. PL 60, figs. 64, 65. 



Imperforate, thick, ash colored, with 7 whorls, of which 4 are 

 normal, with elevated spiral ribs, interstices channeled and very 

 finely decussated ; lip subvaricose. Length, 4 mill. 



Japan, Hoitg Kong, Singapore, Ceylon, Persian G^ilf. 



I. sulcifera and I. ligata, Gould, teste Sowb., I. imbricata, Gould, 

 /. annulata, Dunker, and var. minor, Nevill (fig. 65), are synonyms. 



I. SULCIFERA, Troschel. PI. 68, fig. 95. 



Turreted, thick, strongly spirally ribbed and sulcate, 10 ribs on 

 the last, 4 on the upper whorls, those on the base smaller, suture 

 distinct ; lip thick, but not varicose, expanded below. 



Length, 12 mill. 



Peru. 



An aberrant form which I am unable to locate satisfactorily. I 

 am not aware that it has been recognized by any conchologist since 

 its publication in 1852. 



Genus FENELLA, A. Ad. 1871. 



F. PUPOiDES, A. Ad. PI. 60, fig. 76. 



Imperforate, thin, ]nipoidal, pale brown, with a chestnut band on 

 the middle of the whorls, two on the last whorl; whorls 7^, earlier 

 ones subangulated in the middle, the others convex, spirally striate ; 

 lip simple. 



Japan. 



Is perhaps a variation of the next species. 



F. VIRGATA, Phil. PI. 60, fig. 79. 



Thin, yellowish, with light chestnut longitudinal flames, closely 

 spirally striate ; whorls 7-8, convex, sometimes varicose ; columella 

 subtruncate. Length, 6 mill. 



Red Sea. 

 F. SUBPUPOIDEA, Tryon. PI. 60, fig. 77. 



Whorls about 6, convex, closely spirally striate, thin, light oli- 

 vaceous or brownish, with a series of chestnut spots under the suture; 

 lip simple, sharp. Length, 6 mill. 



Monterey, Cal. 



