CENTEAL ^ROVI^•CE SPECIES. 165 



Family HELICIDiE. 



PATULA. (See below.) 



Patula strig'osa, Gould. 



Shell broadly lunbilicated, orbicular, slightly and about equally con- 

 vex above and beneath, surface irregular and roughened ^jg 15^ 

 above by indentations and coarse lines of growth and 

 by occasional line revolving lines, smoother and shin- 

 ing beneath ; color asby-gray, somewhat mottled with 

 dusky or altogether rusty brown above, with usually 

 a single, faint, revolving band on the middle of each 

 whorl, and often with numerous bands, unequal in size 

 and distance, beneath ; whorls 5, moderately convex, 

 the last one eariuated at its commencement and de- pTstH^osa. 

 flexed; aperture very oblique, circular; peristome simple, acute, almost 

 continuous, terminations approaching, joined by thick callus, that of 

 the columella subreflected. Greater diameter 21, lesser 18""™; height, 

 lO'"'". 



Helix strigosa, Gould, Proc. Bost. Soc. Nat. Hist., ii, 166 (1846); Expl. Exped.Moll., 

 36, fig. 41 (1852); Terr. Moll., ii, 210, pi. xxvi, a.— Pfeiffer, Mon.Hel. Viv., 

 i, 121;,iv, 91; Mai. Bl.,1857, 321.— W. G. Binney, Terr. Moll., iv, 23; L. & 

 Fr.-W. Sh., i, 72(1869). 



dnguispira strigosa, Tryon, Am. Jonni. Concb., ii, 261 (1866). 



Helix Cooperi, W. G. Binney, Proc. Acad. Nat. Sci. Phila., 1858, 118; Terr. Moll., iv, 

 97, pi. Ixxvii, fig. 11 ; L. & Fr.-W. Sh., i, 78, figs. 132-137 (1869).— Pfeiffer, 

 Mai. Bllitt.,1859, 6. 



Anguispira Cooperi, Tryon, Am. Joiirn. Conch., ii, 260 (1866). 



Helix Hajjdeni, Gabb, Am. JourD. Conch., v, 24, pi. viii, fig. 1 (1869). 



Patula strigosa, W. G. Binney, Terr. Moll., v, 157. 



Angiiispira Bruneri, Ancey, Le Nature, iii, 468 (Sept., 1881). 



This species seems to inhabit all of the Central Province from New 

 Mexico, on the Rio Piedro, to the British Possessions. It is also found 

 in the mountainous country east of the Rocky Mountains in the East- 

 ern Province, at least as far east as longitude, 108°. It has also pene- 

 trated the Pacific Province, having been found in Eastern Oregon. 



The species is viviparous. Seventeen embryonic shells were found 

 in one individual, of which the largest had three whorls. 



A large specimen in my cabinet has a larger diameter of 26™"'. 



It will be seen from the above synonymy that I have become con- 

 vinced of the identity of strigosa and Cooperi. Plate XXVI, a, of Terr. 

 Moll., Ill (copied in my figure), represents the former, while the follow- 



