THE NAUTILUS. 



VOL. XIV. DECEMBER, 19OO. No. 8. 



RECORDS OF MOLLUSCA FROM NEW MEXICO. 



BY IT. A. PILSBRY AND T. D. A. COCKERELL. 



The Mollu&ca of the Sandia Mts., New Mexico. 



Nothing has hitherto been reported concerning the mollusca of the 

 Sandia Mountains, near Albuquerque, so it may be well to enum- 

 erate a small collection made there by Miss Maud Ellis, and submit- 

 ted to us for determination. The precise locality is Las Huartus 

 Canon, alt. 8-9000 ft. The species are similar to those of the Colo- 

 rado mountains, and the Saiidias so far as our present knowledge 

 goes, marks the southern limit of this fauna as a whole, though 

 certain of its members extend much further south. 

 Vitrina pfeifferi Newc. Pyramidula cockerelli Pils. 



Euconulus fulvus (Drap.). P. cockerelli mut. viridula (Ckll.). 1 



Zonitoides arboreus (Say). Vallonia cyclophorella Ancey. 



Z. minusculus (Binney). Pupa blandi Morse. 



Thysanophora ingersolli (Bland). Bitidaria pilsbryana Sterki. 

 Pyramidula strigosa (?) Young. 



Miss Ellis also collected Helicodiscus lineatus (Say) in the Sandia 

 Mts., but the exact locality is forgotten. The young Pyramidida 

 doubtfully listed as strigosa may be a form of P. Iteniphilfi.. No 

 Ashtmntelld was found. 



It is somewhat surprising that the Euconulus of New Mexico is not 

 the Texan race, but the Northern fu/vus. 



1 Nautilus, 1890, p. 1<>2, the pule greenish form. T. D. A. C. 



