154 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. IO3 



brown instead of widely streaked with reddish brown ; sutural band 

 the same color as the rest of the whorl ; ground color not as pinkish 

 as some specimens of A. a. apicata (pi. ii, fig. 3). The embryonic 

 whorls of the usual form (pi. 3, fig. 20) are worn and are best 

 described from another specimen ; postembryonic whorls tilleul buff 

 finely axially streaked with hair brown, benzo brown, fuscous, and a 

 few streaks of natal brown, on the last half whorl the ground color 

 shaded with mouse gray, streaked with fuscous ; impressed sutural 

 band wood brown ; lip and columella callus vinaceous fawn. Length 

 19.0 mm., greater diameter 12.0 mm., spire height 10.9 mm., number 

 of whorls 6f. 



An obese form (pi. 11, fig. 4) has ochraceous tawny embryonic 

 whorls ; first fourth postembryonic whorl tawny faintly streaked 

 with ochraceous tawny, last half whorl pale pinkish cinnamon axially 

 streaked with drab gray and cinnamon drab, penultimate whorl tilleul 

 buff axially streaked with hair brown, benzo brown, and natal brown, 

 first half of last whorl tilleul buff, shaded with drab gray, axially 

 streaked with hair brown and natal brown, last half whorl drab 

 axially streaked with tilleul buff, fuscous, and dark vinaceous brown 

 at and below the periphery lined with pale drab gray ; impressed 

 sutural band the same as the rest of the whorl. Length 19.4 mm., 

 greater diameter 13.2 mm., spire height 10.3 mm. 



A light brownish specimen (pi. 11, fig. 5) resembles A. a. apicata, 

 but differs in not having a brown sutural band distinct from the rest 

 of the whorl and in having a color pattern with a shade of brown not 

 found on A. a. apicata. The postembryonic whorls are pale ochraceous 

 buff, strongly axially streaked with tawny olive and a few streaks of 

 warm sepia. 



Throughout area 96, odd specimens (pi. 11, fig. 6) occur of an 

 entirely different pattern. The shell has the usual embryonic whorls ; 

 postembryonic whorls light pinkish cinnamon banded and mottled 

 and lined with chocolate, the bands broken in places by the ground 

 color ; lip and columella callus light vinaceous fawn. 



One specimen (pi. 11, fig. 7) has the first two postembryonic whorls 

 with the usual color pattern of plate 11, figure 4, and the last half 

 similar to plate 11, figure 6. 



Another shell (pi. 11, fig. ya) looks as if it were diseased, the first 

 fourth postembryonic whorl cinnamon axially streaked with cinnamon 

 buff, the next whorl and three-quarters warm blackish brown faintly 

 streaked with pale drab gray, resembling A. a. apicata var. i, last 

 three-fourths whorl white spirally banded or splotched with tawny 

 and might be taken for a faded color pattern of figure 6. 



