142 CANCILLA. 



illustration for bacillum. Deshayes' figure appears to me to be 

 very like M. Philippinarum, A. Ad. 



M. PRUINOSA, Reeve. PL 41, fig. 215. 



Pale brown, with short, narrow snow-like streaks, rather irreg- 

 ularly descending or striking out from the sutures ; decussately 

 engraved with longitudinal and transverse impressed lines. 



Length, '9 inch. 



Habitat unknown. 

 A doubtful species. 



M. FULGETRUM, Reeve. PL 41, figs. 216, 21?, 198. 



Transversely impressedly grooved, grooves narrow, very 

 finely punctured ; reddish chestnut, with conspicuous waved 

 longitudinal white streaks. Length, 1 inch. 



Isl. of Burias, Philippines ; under stones at low water ; 



New Caledonia. 

 Yar. BOISSACI, Montrouzier (fig. 21*7). 



Has the same sculpture, and differs only in presenting a series 

 of quadrangular chestnut spots, appearing like interrupted longi- 

 tudinal bands : they are the bands of fulgetrum, in fact, but 

 interrupted by the impressed striae. M. Cyri, Dohrn (fig. 198), 

 is the same as M. Boissaci. 

 M. HANETI, Petit. PL 41, fig. 194. 



Light yellowish. Length, 23 mill. 



Hab. unknown (supposed to be not far from Mazatlan, 



W. Coast of Mexico}. 

 M, MALLETI, Petit. PL 42, fig. 218. 



Light chestnut or olive-brown ; longitudinally striated between 



the angular revolving costae. Length, 1 inch. 



Habitat unknown. 



Possibly only a well-grown, fresh specimen of M. Haneti. 



M. CARINATA, Swainson. PL 42, figs. 219-223, 241. 



Yellowish, olive or chestnut-brown; shoulder of whorls ob- 

 tusely or sharply angulated or carinated ; with distant impressed 

 revolving striae, sometimes covering a portion only of the body- 

 whorl, sometimes altogether obsolete. 



Length, 11*5 inches. 



Cape Verd Isles ; Sierra Leone, W. Coast of Africa. 



M. Senegalensis, Reeve (fig. 221), appears to be a rude, dis- 



