NO. nil. PROCEEDINGS OF THE NATIONAL MUSEUM. 353 



Types from Ocozucuaiitln, Mexico; collected by E. W. ^STelsoii. 



This species is shorter, stouter, ami less cylindrical than G. turris, 

 Pfeifter, which has proportionally more numerous whorls and is smaller 

 and more fusiform than C. nehoni. It is respectfully dedicated to the 

 distinguished naturalist of Hamburg, Dr. G. Pfelier, well known for his 

 work oil Mexican land shells in conjunction w ith H. Strebel. 



Genus ANISOSPIRA, Strebel and Pfeffer. 



ANISOSPIRA STREBELI, new species. 



(PlateXXXlII, figs. 7, 8.) 



Shell thin, white, solid, opaque, decollated, the rejected spire having' 

 14 whorls and the remainder of the shell from Ih to 9 whorls; apex of 

 the young shell blunt, slightly dome-shaped, thenepionic shell smooth 

 or faintly transversely striated, subsequent whorls to the fifth sub- 

 cylindric, the fifth slightly constricted, the spire very slowly increases 

 in diameter until the decollation is reached; the first four whorls after 

 the nucleus are conspicuously, elegantly, transversely ribbed, theriblets 

 nearly straight, with subecpial interspaces. Beyond the constriction the 

 riblets are less conspicuous and more crowded and more oblicpie, and 

 so continue evenly over the adult shell where the suture is distinct but 

 not deej), the form somewhat fusoid, the basal whorl slightly contracted 

 and siibangulate at the periphery, the umbilicus closed and the aperture 

 suborbicular and lightly reflected. The axis is moderately stout and 

 twisted, with a single plait on the pillar, anteriorly, in the last and 

 penultimate whorls, not however visible from the aperture, much as in 

 A. liehmanni, Pfeiffer. Length of decollate spire, 21 mm. ; of decollated 

 shell, 29 mm. ; maximum diameter of shell, 10 mm. ; of decollation, G mm. 



Tyjjes from Huilotepec, Oaxaca, Mexico; collected by E. W. Xelson. 

 No. 107366, U.S.:N^.M. 



This species is shorter and more slender than A. hi/alina, Pfeiffer, 

 which has always 1 and sometimes 2 more whorls. It is of a whitish, 

 not a pinkish tint, and the decollated portion of the spire is more 

 cylindrical than in A. hyalina, which has a proportionally larger and 

 more trumpet-like mouth. A. liehmanni is larger, stouter, of a brownish 

 yellow color, and has a whorl less than the present species, which is 

 respectfully dedicated to Ilerr II. Strebel, joint author of the work on 

 Mexican land shells already alluded to. 



Genus CIONELLA, Jeffreys. 



CIONELLA LUBRICA, Muller. 



A single specimen was obtained at an altitude of about 9;400 feet on 

 the summit of the Huachuca range, Cochise County, Arizona, by Dr. 

 Mearns. This is the most southern locality definitely known in the 

 United States for this species. It has been obtained by Hemphill in 

 the Weber Canyon, Utah, and at White Earth, Colorado, by Ingersoll, 

 Proc. i^. M. vol. xix 23 



