102 SMITHSONIAN MISCELLANEOUS COLLECTIOJMS VOL. IO3 



brown; impressed sutural Ijand white; lip and columella callus white. 

 Length 19.0 mm., greater diameter 12.6 mm., spire height 10.2 mm., 

 number of whorls 6h 



Distrilnition, area?: Kalaikoa, Gulick. Holotype, MCZ 39903. 

 South Kaukonahua, South-Central Branch Ridge, general region 

 of locality 260A ?, elevation? (fig. 5, p. 105), probably the lower por- 

 tion of the locality, Meinecke, 2 sinistral 1928. Found mixed with 

 A. a. tuberans var. 4, BBM 121952. Also collected by Wilder, South 

 Kaukonahua Stream, BBM 50573, i dextral, found mixed with 

 ./. (7. virgatifulva, BBM 50572. and probably comes from the region 

 of Waikakalaua Stream. 



One of the Meinecke shells (pi. 9, fig. 3) has the first embryonic 

 whorl slightly worn and colored army brown, remaining embryonic 

 whorls upper two-thirds white, lower third benzo brown, the benzo 

 brown fades out on the last half embryonic whorl ; first postembryonic 

 whorl white, axially streaked with light drab, penultimate whorl 

 pale gull gray axially streaked with fuscous, last whorl spirally lined 

 and axially streaked with seal brown and fuscous, ground color pale 

 mouse gray, and sometimes appears as zigzag streaks of pale mouse 

 gray between the darker axial coloration, last half whorl drab, 

 axially streaked with seal brown and fuscous ; lip and columella 

 callus a dilute shade of pale vinaceous fawn ; impressed sutural band 

 white, lined on the last whorl with a line of fuscous on the lower por- 

 tion of the band ; the shell is not quite adult. Length 17.5 mm., greater 

 diameter 12.1 mm., spire height 9.7 mm., number of whorls 6\. 



The other Meinecke shell (pi. 9, fig. 3a) has a pattern similar to 

 that of A. a. leucorraplie on the first half of the penultimate whorl, 

 while the remaining whorls look like some form of A. a. tuberans. 

 This shell (pi. 9, fig. 30) has the first half postembryonic whorl white 

 with a line of fawn color on the lower fourth of the whorl broken by 

 axial streaks of white, next three-fourths of the whorl pale gull gray 

 axially streaked with natal brown, next half whorl pale gull gray 

 lined with natal brown, the lines broken by the ground color, last 

 whorl darkening to drab on the last half, spirally lined and axially 

 streaked with white or pale gull gray. 



The Wilder specimen (pi. 9, fig. 4) ditTers from typical leucorraplie 

 by having the embryonic whorls banded with yellow. The first em- 

 bryonic whorl natal brown, next whorl upper fourth white, lower 

 fourth natal brown shading to drab, last embryonic whorl shading 

 from drab to honey yellow ; first two postembryonic whorls and a 

 fourth white, tinted on the penultimate with pale gull gray, last 

 whorl pale gull gray axially streaked with benzo brown ; lip light buff, 

 columella callus white. 



