NO. I ACHATINELLA APEXFULVA DIXON WELCH I43 



whorl, below the white sutural and subsutural bands, light mouse gray, 

 last whorl and a half pale vinaceous fawn axially streaked and 

 faintly spirally lined with pale brownish drab ; lip and columella 

 callus pale vinaceous fawn. Forty-seven percent of the Wilder lot 

 have yellow embryonic whorls. The darkest color pattern (pi. lo, 

 fig. 7/7), found on two shells, has the embryonic whorls white; post- 

 embryonic whorls dark vinaceous drab axially streaked with drab 

 gray, last half whorl mostly drab gray axially streaked with dark 

 vinaceous drab ; impressed sutural and subsutural bands white. The 

 subsutural band, as in all specimens of this variety, decreases in width 

 on each successive whorl so that it is lacking or merely a line on the 

 last whorl. 



ACHATINELLA APEXFULVA STEELI, new subspecies 



Plate 2, Fi(;ure 25 ; Plate 10, Figures 3-5C 



AchatincUa apcxfitlva apicata Newcomb, Pilsbry and Cooke, Man. Conch., vol. 

 22, p. 325, pi. 60, figs. 5Z;, 10, 1914. 



The color pattern of the shell resembles A. a. giiUckii but differs in 

 being a larger shell with a dark reddish-brown color pattern. The 

 embryonic whorls of the holotype (pi. 2. fig. 25) are pale pinkish 

 buff; last half of the first postembryonic and penultimate whorls 

 chocolate axially streaked and spirally banded with cinnamon drab, 

 last whorl above the periphery light drab spirally lined and banded 

 with chocolate, subperipheral band tilleul buff, axially streaked with 

 light drab and on the last half whorl streaked with avellaneous, base 

 light drab axially streaked with white, spirally banded with natal 

 brown and bone brown ; lip and columella callus fawn color lightening 

 to light vinaceous fawn on the inner margin. Length 19.3 mm., greater 

 diameter 13.0 mm., spire height 10.2 mm., number of whorls 6|. 



Distribution, area 80: North-South Kaukonahua Ridge, type 

 locality 271, elevation 1,450-1,532 feet. Russ, 1933. Steel BBM 

 129017-129018, 6 sinistral 1934; also 272. elevation 1,500-1,550 feet, 

 I dextral, 7 sinistral. Steel and Welch, 1934. Also collected by Gulick. 

 O. H. Emerson, BBM 103972. Wilder, BBM 50577. 50580 (figs. 5. 

 5a, p. 105). This subspecies is named after Lt. Col. Charles L. Steel, 

 U. S. A., who helped me determine the distribution of certain forms 

 of Achatinella and generously gave me valuable material. 



The obese form of the shell (pi. 10, fig. 3) measures: Length 19.3 

 mm., greater diameter 13.5 mm., spire height 10. o mm.; embryonic 

 whorls pale pinkisli cinnamon, lightening to white on the last embry- 

 onic whorl ; first half postembryonic whorl cinnamon buff axially 



