42 THE NAUTILUS. 



(1.) Hijnlinln minii.ieiil't liinn., Nineteen examples. 



(2.) H. lirriiinfii/n Sterki. Thirteen. 



(3.) Zonitniili-x urboreus Say. One, immature, weathered. 



(4.) Helicodiscus lineatus S&y. Five. 



(5.) Vallonia ji> i^pci-ticu Sterki. One; small, whorls scarcely 

 over three. 



(6.) V. gracilicosta Reinh. (probably). Three. 



(7.) V. cyclopliorella Aucey. One. 



(8.) Buliminu* (" Pupa ") falla.i Say. Fifteen. 



(9.) Pupa blandi Morse. Eleven. " Very variable iu altitude ; 

 a few smaller specimens are scarcely or not distinguishable from 1'. 

 fri/i/ici.iti.t Studtr, from the eastern continent, except in color, which, 

 iu P. blandi and other species of the group, is very variable." 

 (Sterki.) 



(10.) P. arizoneims (Gabb) W. G. B. Three. With distinct 

 ribs. 



(11.) P. hordeacea Gabb. Eighty-four. " Rather variable in 

 size; one specimen is of considerably smaller diameter than the 

 average." (Sterki.) 



(12.) P. hordeacella Pilsbry. Thirteen. 



(13.) Vertigo ovata Say. Twelve. Two are lower than the rest, 

 with the base somewhat truncate. 



(14.) Clonella lubrica Miill. One. 



(15.) Can/cJilnin e.ciguum Say. One. 



Mesilla is much lower down the river than San Marcial, whence a 

 rejectamenta-collection was formerly recorded. Yet the types 

 found are largely boreal. I was particularly surprised to come 

 across the Cionelln, which must surely have floated a long way. 

 There was no vestige of any Holospira. Li mini n, Planorbis * jiui-ru* 

 Say, and two others) and Physa occurred with the above land-shells, 

 but there were not any traces of 8j>h(erium or Pisidium, nor of any 

 operculates. 



Further Record* of Land Shells from Xfir Mi.ri>. 



I am now able to offer two more lists of New Mexico shells, all 

 identified, as before, by Dr. V. Sterki, who has been most kind in 

 attending to them. 



(1.) Shells from the rejectamenta of the Rio Grande at Rincon, 

 N. M. This is between Mesilla and San Marcial. They were with 

 much juniper debris. 

 14 Hijaliitia minuscula Binn. 3 Vertigo ovata Say. "One albino ?" 



