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. 



10a. Var. PALLIDIOR Pilsbry, n. v. PL 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., Notitiae, 

 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 



