148 CHRYSAME. 



Var. FULVA, Swainson. Fig. 267. 



Chestnut- or chocolate-brown, with usually an irregular faint 

 superior band ; whorls encircled by punctured, engraved lines, 

 sometimes with scattered white dots. Length, l*75-2'5 inches. 



Polynesia. 



The animal, according to Garrett, is chestnut-brown, the 

 creeping disk white, siphon pale brown, ocular region and tips 

 of the tentacles white. 



M.fulva appears to connect with M. ambigua in such a man- 

 ner as to have justified Kiener in considering it a S3 r nonym. In 

 deference to conchological opinion, I separate it as a variety, the 

 typical examples being somewhat different >n form from M. 

 ambigua. M. attenuata, Reeve (fig. 268), is synonymous. 



M. ADUSTA, Lam. PL 43, fig. 269 ; PL 44, fig. 276. 



Variegated with chestnut- or chocolate-brown and yellowish, 

 disposed in longitudinal flames, or nearly uniform brown, lighter 

 on the periphery; upper part of the whorls compressed, making 

 a sharp, crenulated ridge next the sutures ; the impressed 

 revolving lines are rarely punctate. 



Polynesia, under coral, at low water. 



A species which might almost as well be placed with the typi- 

 cal Mitrae as here ; analogies of coloration and the succession of 

 intermediate forms connecting it with the typical Chryxame, 

 induce me to prefer for it the present position. 



M. TAHITENSIS, Garrett. 



An unfigured species, evidently allied to M. adusta, of which 

 a single specimen, 37 mill, long, was found at Tahiti, Society 

 Islands. 



M. FULVESCENS, Swainson. PL 44, fig. 271. 



Pale yellowish brown ; whorls encircled with punctured incised 



lines. Length, 1-25 inches. 



Isle of Annaa, on the reefs. 



M. striata, Gray, is doubtfully referred here by Reeve, but 

 evidently belongs to the genus or group StrigateUu. 



M. CORONATA, Lam. PL 44, figs. 273-275, 277, 281-283 ; PL 58, 



fig. 687. 

 Orange-brown to chocolate, dotted occasionally with white, 



