42 THE NAUTILUS. 
1.) Hyalinia minuscula Binn., Nineteen examples. 
(2.) H. leviuseula Sterki. Thirteen. 
(3.) Zonitoides arboreus Say. One, immature, weathered. 
(4.) Helicodiscus lineatus Say. Five. 
(5.) Vallonia perspectiva Sterki. One; small, whorls scarcely 
over three. 
(6.) V. gracilicosta Reinh. (probably). Three. 
(7.) V. eyclophorella Ancey. One. 
(8.) Buliminus (“ Pupa”) fallax Say. Fifteen. 
(9.) Pupa blandi Morse. Eleven. “ Very variable in altitude; 
a few smaller specimens are scarcely or not distinguishable from P. 
triplicata Studer, from the eastern continent, except in color, which, 
in P. blandi and other species of the group, is very variable.” 
(Sterki.) 
(10.) P. arizonensis (Gabb) W. G. B. Three. With distinet 
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.) Cionella lubrica Mill. One. 
(15.) Carychiwn exiguum 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 Cionella, which must surely have floated a long way. 
There was no vestige of any Holospira. Limneea, Planorbis (parvus 
Say, and two others) and Physa occurred with the above land-shells, 
but there were not any traces of Spheriwm or Pisidium, nor of any 
operculates. 
Further Records of Land Shells from New Mexico. 
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 Hyalinia minuscula Binn. 38 Vertigo ovata Say. “One albino ?” 
