32 GARRETT: ON POLYNESIAN MITRID^E. 



Genus STRIGATELLA Swainson. 



72. Strigatelia acuminata Swainson. Reeve, Conch. Icon., 

 pi. XX., fig. 158. 



Excepting the Marquesas, we obtained a few examples 

 of this species at all the South Sea groups. They occurred 

 under dead coral on the outer reefs. 



Some specimens exhibit three faint, transverse bands on 

 the body whorl, which are a shade darker than the ground 

 color. The spire, which has slightly concave outlines, is 

 usually striated with delicate spiral grooves, which are some- 

 times continued on the body whorl. 



Animal uniform luteous yellow. 



73. Strigatelia auriculoides Reeve, 1. c, pi. xxviii., fig. 228. 



This somewhat rare species is diffused throughout Poly- 

 nesia, and is found under dead coral on the outer reefs. 



Reeve's figure and description accords tolerably well 

 with the five perfect specimens before me, which are not so 

 robust as represented by the above author. The ground 

 color varies from brown to deep brown-black, with a narrow, 

 transverse, more or less interrupted whitish band on the 

 upper half of the body whorl, which latter is also dotted with 

 the same color. The aperture is bluish-white. The whole 

 surface of the shell is encircled with fine punctated incised 

 lines, which are sometimes obsolete on the middle of the 

 body. Outer lip crenulate on the inner margin. 



Our largest example, from the Cook's group, is larger 

 than Reeve's -figure, and measures 27 mill, in length by 13 in 

 diameter. Weathered shells when deprived of their epidermis 

 are reddish-chestnut with white markings. 



Chenu's figure of Columbella ufiifascialis appears to be 

 the same as Reeve's Mitra auriculoides. 



