PSEUDOTROCHUS. 229 



the original of which he received from Morelet. It is dark 

 purple-brown on the last whorl or two, the intermediate 

 whorls being reddish, and the apex paler. The single spec- 

 imen I have seen is dark brownish red-purple, with the spire, 

 sutural margin and a columellar area pale. The surface is 

 beautifully engraved spirally with crimped, crowded lines; 

 and the interior of the mouth is dark purple-brown, the 

 acute lip pale. Morelet found the species to be variable. 

 He refers to it specimens with the spire flamed, and with a 

 light basal band (fig. 3). He also figures a roseate young 

 shell (fig. 7). 



B. zegzeg Morelet and A. violacea Pfr. are identical with 

 typical moreletiana, having the same dark coloration. 



. Var. PALLIDIOR Pilsbry, n. v. PI. 8, fig. 42; pi. 9, figs. 



5, 6. 



Shell thin, white or nearly so, with narrow brown streaks 

 at the median region of the last whorl and above the suture, 

 a faint red-brown band above the slight peripheral angle. 

 Sutural bead-margin distinct, cream- white; columella pur- 

 plish-brown. Surface very smooth and glossy, the spiral 

 striation faint. Length 40, diam. 22, apert. 19 mm. 



? Perideris cailleana Morelet, KOBELT, Conchyl. Cab., p. 

 47, pi. 16, f. 7, 8. f P. moreletiana Dh., SHUTTL., Notitise, 

 i, p. 79. 



Shuttleworth, who examined more than 80 specimens, had 

 apparently this variety or subspecies before him, his speci- 

 mens all having a pale-immaculate area around the colu- 

 mella, and being either purplish variously ornamented with 

 blackish-violaceous flames and streaks (pi. 9, figs. 5, 6), or 

 flesh-colored, immaculate or with chestnut streaks. The shells 

 before me are of the pattern last described. 



11. P. INCOLORATUS ( Shuttle worth ). PL 14, figs. 43, 45, 



46, 47. 



Shell long oblong-turrite, rather solid, striatulate, some- 

 what shining. Under a very fugacious, pale straw-colored 

 epidermis it is pure white, without markings. Spire conic 



