278 PROCEEDINGS OF THE ACADEMY OF [Mch., 



paler ; striation sharp ;* spirals ivell developed on the last whorl: not cari- 

 nate. Alt. 8.8, diam. 14.7 mm. (PI. XXV, fig. 36). 

 This lot is dwarfed, about the size of 0. s. concentrota. 



12. Another lot from Carr Canyon, altitude not stated, contains 

 whitish bandless shells and brownish ones, uniform or banded like 

 No. 7. One is carinated to the aperture and all are keeled in 

 front. The sculpture consists of fine, sharp rib-striae on the spire, 

 and when fresh, young shells show cuticular laminae on the costulse, 

 larger at intervals and at the periphery. The base has a similar sculp- 

 ture. The last whorl is spirally striate above and below. Diam. 21 

 mm. (PL XXV, figs.' 37, 38, 39, 40). 



It may be noted that Dall has reported " a sharply carinated variety " 

 from Tanner's Canyon, Huachuca Mountains (Proc. U. S. Nat. Mus., 

 XIX, p. 335). 



Mr. Ferriss notes that the young are hirsute. This form diverges 

 quite markedly from hiuichucana and to some extent parallels 0. har- 

 bata of the Chiricahuas. It was found in one small colony onlj^ (No. 

 79 of Mr. Ferriss' coll., 87,132, A. N. 8. P.). 



13. Miller Canyon, 5,000 feet. Very large, depressed shells with 

 0, 1 or 2 bands, ground color fleshy-white or brown. Periphery rounded, 

 or in one specimen angular in front (PI. XXIV, figs. 1, 2, 3, 4, the last 

 immature) . 



Alt. 14 13.6 13 12 mm. 



Diam. 24.5 23 23 21 " 



14. Miller Canyon, 5,500 feet. Similar to the preceding. 



On the opposite side of the range specimens were taken in Cave 

 Creek and Ida Canyons. 



15. Cave Creek Canyon, 5,500 feet. Wliitish or brown-banded 

 specimens like Nos. 3 and 4 (PI. XXV, figs. 41, 42, 43). 



16. Ida Canyon. Whitish specimens, angular or rounded in front, 

 and with or without a band. The whorl descends more or less in front, 

 and some gerontic forms occur. Diam. 19.8 to 22 mm. (PI. XXV, figs. 

 33, 34, 35). 



Oreohelix strigosa metcalfei Ckll. Pi. XXV, tigs. 44, 48, 02. 

 Nautilus, XVIII, p. 113, February, 1905. 

 The shell is calcareous, \vhitish with corneous and brownish streaks 

 and dots, and a dark brown band below the periphery. The upper 

 siirface is rather rudely wrinkled obliq\iely, but scarcely shows spirals; 

 but the base is closely and in most specimens rather distinctly spirally 

 striate. Embryonic shell like that of 0. s. huachucana. The whorls 

 have an acute, projecting carina which continues to the aperture, and are 



