2 SMITHSONIAN MlSCKLLANliOUS C"Or,M:C'riONS VOL. 56 



sliar]), short incisions, tending- in the same direction; suture well 

 marked, more or less minutely undulated by the sculpture ; whorls 

 inflated, the last slig-htly descending toward the ai)erture, the base 

 swollen, with no umbilicus; the aperture rounded-quadrate, strongly 

 ('xjjanded and reflected, though with only a thin glaze over the body ; 

 ])eristomc yellowish white, the throat purple-brown, or both may be 

 lighter in some specimens ; pillar short, stout, straight, with no indi- 

 cation of a fold, the lip behind it heavy and folded over on the base. 

 Height of shell, 33.0; of last whorl, 22.0; of aperture, 19.0; max. 

 diameter, 20.5 mm. 



Collected by Lt. Col. E. A. Mearns on Mt. Kenia, at the height 

 (jf X.ooo to ro.500 feet above the sea. V. S. N. Mus. No. 214,300. 



BULIMINUS MEARNSII, new species ( I'i^'. 2) 



vShcll in general resembling the preceding .species, but much 

 smaller, having about six whorls in all, with similar but more deli- 

 cate sculpture, the suture of the last whorl appressed, the color gen- 

 erally paler; the spire with its sides more flattened; the reflected lip 

 is white, the throat pinkish brown; there is a narrow but distinct 

 and deep umbilical perforation, only partially overshadowed by the 

 reflected pillar-lip; height, 25.0; of last whorl. 10.5; of aperture. 

 14.0; max. diameter, 16.0 mm. 



Collected by Lt. Col. Iv .\. Mearns in the .southern part of 

 M'Guaso Nyiro, l'.ritish East .\frica. I'. S. N. Mus. No. 2i4,29(). 



A section shows that the umbilical perforation expands consider- 

 ably inside the axis of the last whorl and continues through the axis 

 in the penultimate whorl, though more contracted. The external 

 orifice of the umbilicus is in rare specimens almost covered by the 

 reflected lip, while in /?. rooseveJti, with equal rarity, a minute chink 

 is left exposed by the li]), but the axis is more slender than in B. 

 iiicarnsii, though the latter is much the smaller shell. 



