THE NAUTILUS. 139 



briefly described as follows : Shell subcylindrical, Binooth, 

 vitreous and polished, yellowish white, variously banded with 

 chestnut ; spire short and completely glazed over ; whorls 4^ ; 

 aperture narrow, dilated, below ; columella sinuous, obliquely 

 truncate, with 4 fairly strong oblique plaits ; outer lip thick- 

 ened without ; suture marked by a narrow white line. 



Length 9 mm.; diam. max. 4.5 mm.; length of aperture 7 

 mm. I have selected as type the form with 3 broad chestnut 

 bands on body whorl — the uppermost band being rather nar- 

 rower than the other two — as this corresponds most nearly with 

 the usual coloration of Marg. albolineata Orb. 



M. vana Sow,, quoted by Deshayes from Reunion, must of 

 course have been a misidentification. According to von Mar- 

 tens it was in reality M. lienardi Jouss. , but I should be inclined 

 to suggest M. sordida Reeve. In Reeve's description of this last 

 '* triplicata " is an error for " quadriplicata," judging from 

 the presumable type in the Brit. Mus. 



ON SOME ILL-UNDEBSTOOD OBEGHELICES. 



BY HENRY A. PILSBRY. 



Oreohelix haydeni utahensis (Hemphill), 



This form has a somewhat complicated history. The first 

 notice is contained in a letter from Mr. Henry Hemphill, quoted 

 by Mr. Binnej in "A Second Supplement to the fifth volume 

 of the Terrestrial Air-breathing Mollusks of the United States," 

 Bull. Mus, Comp. Zool. XIII, No. 2, p, 30 (Dec, 1886). The 

 account reads : 



" I then returned to Salt Lake City, and crossed the valley to 

 the west, camping on the west side of a range called the Oquirrh 

 Mountains. Here commenced a series of finds that was quite 

 exciting and verj' interesting to me. At the foot of the moun- 

 tain my attention was attracted to a pile of detached rock, 

 usually a good place for snails. After a few moments' work 

 among these stones I was rewarded by finding quite a number 



' Conchy 1. de I'lle de Reunion, p, 136. 



* Beitriige zur Meeresfauna Mauritius, p. 258, 



