178 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. IO3 



are not available to me and may be lost. It is possible that higiibris 

 and seminigera come from the same lei Dixon used. If the shells 

 came from another lei there is a possibility that the shells are dififerent 

 from apexfulva. But until the types are seen it is impossible to say 

 what the shells really are, and Pilsbry's identification should stand. 

 Swainson's shells were collected by Captain Byron of H. M. S. Blond. 

 These again could have come from elsewhere than the type locality 

 of apexfulva. Again until the type is studied it is difficult to say 

 whether the shell is or is not A. apexfulva. The Swainson shells may 

 be forms from area 94 of A. a. beata var. i, which are impossible to 

 separate from typical A. a. apexfulva. Therefore, even were the 

 types available for all three forms they might be from dififerent 

 localities and yet not separable from A. a. apexfulva, so that it is best 

 to consider them synonyms. 



Since the holotype of A. a. apexfulva has not been located, the 

 shells in the J. S. Emerson lot in the Bishop Museum, the Academy 

 of Natural Sciences, and the O. P. Emerson lot in the Museum of 

 Comparative Zoology will be considered typical. The usual form 

 and color pattern in the J. S. Emerson lot (pi. 3, fig. 27) has the 

 embryonic whorls light bul¥ ; postembryonic whorls hessian brown 

 or maroon ; impressed sutural band the color of the ground with the 

 upper extreme edge pale pinkish buff; lip and columella callus pale 

 vinaceous fawn. Length 18.8 mm., greater diameter 12.3 mm., spire 

 height 10.8 mm., number of whorls 6|. 



An extreme obese form (pi. 11, fig, 18) measures: Length 18.8 

 mm., greater diameter 13.3 mm., spire height 10.2 mm. ; the color 

 pattern is similar to figure 27 except that the last whorl is faintly 

 streaked with tawny. Eight specimens in the Emerson lot of 38 

 specimens have a gray streaked pattern similar to plate 11, figure i8a; 

 last two postembryonic whorls maroon, streaked with pale quaker 

 drab, the streaks cut by lines of maroon. Length 19. i mm., greater 

 diameter 12.3 mm., spire height 11. o. Pilsbry's plate 60, figure ic, 

 does not look like A. a. apexfulva, but rather like the lined form, 

 or A. a. aloha var. i. No such color pattern is found in the J. S. 

 Emerson lots from Opaeula. The shell may be a rare color pattern 

 of an intermediate race which occurred between A. a. apexfulva and 

 A. a. duplocincta. Then again it may be a stray shell that was mixed 

 in with the shells of A. a. apexfulva. 



An adult shell from locality 330-4 is shown on plate 11, figure 19. 



