200 • IMBRICARIA. 



I. PUNCTATA, Swainsoii. PI. 5S, ligs. (;7<)-(i8l. 



Yellowish white, clouded with :i d:u-lver shade, :\\)c\ lilack; 

 body-whorl encircled with engraved, sometimes niiniiiely i)unc- 

 tured lines. 



Length, -b-S inch. 



Socict)/ Ishtnds. 



With this species must be united M. conovula, Quoy, partly 

 (tig. 081), and M. ossea, Reeve, a name given because Swainson 

 had previously given that of punctata to a Mitra; M. truncata, 

 Kiener (tig. 680), a poorly figured shell, may also be placed here 

 for the present. 



I. LiNEATA, Swainson. PI. 58, tig. 678. 



Yellowish, smooth, Avith revolving chestnut hair-like lines. 



Length, 1 inch. 



Inhabits the South Seas, 



This species has not been recognized by the monographers. 

 It is described as smooth, yet I think it is merely a large piuiclata, 

 which it }nucli resembles in the spire and upper part of aperture. 



L VJRGO, Swainson. PI. 58, tig. 683. 



Yellowish white, apex and base tipped with black-violet, spire 

 much depressed, mucronate, upper portion of body-whorl swollen. 



Length, -6 inch. 



Polynesia ? sand at low water. 

 Although so bulbous, I cannot help thiidcing that this will 

 prove to be an extreme variation of /. punctata. 



I. Vanikorensis, Quoy. PL 58, figs. 684, 682. 



Encircled by closely punctured striie ; ash}', or reddish gray, 

 whitish towards top of body-whorl and on the spire, ornamented 

 with numerous minute white spots and streaks, edged with 

 chestnut ; aperture chestnut within. Length, •65-'9 inch. 



Philipjnnes ; Poliinesia, in sandy mud at low water. 



1 tind no good reason for the separation from this species of 

 /. Deburghiee, Sowb. (fig. 682), recently described from Taheiti. 



