394 IRAVADIA-FENELLA. 



whorls 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, Hong Kong, Singapore, Ceylon, Persian Gulf. 



I. sulcifera and I. ligata, Gould, teste Sowb., /. 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, pupoidal, 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. 



