AMASTRA, KAUAI. 153 



Dr. Hart-man's locality "Kula, East Maui" is doubtless an 

 error. 



6<z. A. rugulosa normalis, n. subsp., pi. 42, fig. 9; pi. 15, figs. 

 8-10. 



A large series from Kipu, in coll. C. Montague Cooke and 

 A. N. S. P., consists of shells which are thinner than typical 

 rugulosa, with less roughened surface and a half whorl more. 

 The color is typical in most examples ; in some there is a pale 

 band below the periphery, or the entire last whorl may be of 

 a rich reddish- chestnut color, the spire paler. 



Length 12, diam. 8 mm.; 6 whorls (pi. 42, fig. 9; type). 



Length 11.2, diam. 8.1 mm.. 



In an embryo of barely two whorls the periphery is sharply 

 angular. The columella is spiral but has no callous fold 

 superposed. The axis is very minutely perforated. Exter- 

 nally it is finely, very weakly striate, nearly smooth. 



Other specimens, without other locality than Kauai, are 

 illustrated in figs. 8, 9, 10, of plate 15. These shells are 

 thicker than those of Kipu, but have the same smoothish sur- 

 face. The axis is very slender and distinctly sinuous in the 

 second whorl ; then rather large in the last three whorls, still 

 sinuous; in the last 1% whorls it bears a strong superposed 

 lamella (pi. 15, fig. 8). The apical sculpture, as drawn in 

 fig. 9 from a worn example, gives an imperfect, somewhat 

 erroneous idea. Cotypes are no. 104685 A. N. S. P. and 2316 

 Cooke collection. 



7. A. NUCLEOLA (Gould). PI. 15, figs. 16, 17. 



"Shell solid, imperf orate, ovate-globose, livid chestnut, the 

 apex pale, at the suture and anteriorly whitish. Whorls 6, 

 somewhat tabulate posteriorly. Aperture rounded; lip sim- 

 ple; columella excavated, covered with a callus; fold small. 

 Length nine-twentieths, width one- fourth inch. [Il%x6% 

 mm.]. 



"A small solid species, of a livid hue, whitish at the tip 

 and the neighborhood of the suture, and milk-white just be- 

 fore the termination of the whorl at the aperture" (Old.). 



