ACHATINELLA APEXFULVA. 317 



than the spire, swollen, subcompressed at the base ; 

 ture oblique, obversely ear-shaped, white within; columellar 

 fold high, dentiform, white ; peristome thin, sublabiate within, 

 the right margin narrowly expanded, columellar margin di- 

 lated, spreading. Length 17, diam. 10 mm. ; aperture 10 mm. 

 long, 5 wide." (Pfr.) 



Sandwich Islands (Newcomb). 



Achatinella dolium PFR., P. Z. S., 1855, p. 5, pi. 30, f. 15; 

 Monographia Hel. Viv., iv, 528. SYKES, Fauna Hawaiiensis, 

 p. 302. THWING, Orig. Descriptions, etc., Occas. Pap. B. P. 

 Bishop Mus., iii, no. 1, p. 102, 1907 ("Kalae, Molokai"). 



A. dolium is known only by a single specimen, the type, in 

 the British Museum. Mr. E. A. Smith has kindly looked at it 

 for me, and gives the following notes: "A. dolium is nearer 

 vittata than lor at a in shape, but not quite the same. It is a 

 much shorter shell than A. lor at a. The extreme tip of apex 

 (one whorl only) is light olive brown. Spiral striation hardly 

 traceable. The lip and interior of aperture are very pale 

 lilac, not white as stated by Pfeiffer." 



Comparison should be made with a good series of A. swiftii. 

 A. dolium is probably only a color-form of that polymorphic 

 shell. Mr. Sykes considers it a form of Achatinella s. str., 

 with this note: "Hab. Molokai (Baldwin). I fancy this habi- 

 tat must be wrong and that the species really belongs to Oahu ; 

 the shell is very close to A. hanleyana Pf., and may prove to 

 be only a color variety. ' ' 



37. A. APEXFULVA (Dixon) . PL 50, fig. 15 ; pi. 60, figs. 1 to Ic. 



Shell imperforate, dextral, ovate-piriform, solid, very 

 glossy; outlines of the spire concave. 3% embryonic whorls 

 Naples yellow, following whorls varying from blackish carob 

 brown to chestnut, sometimes with some whitish streaks and 

 spiral lines; the suture narrowly light-edged; lip flesh or 

 salmon color, columellar fold nearly white. The embryonic 

 whorls are almost flat and are unusually elongated or drawn 

 out, especially the last one. Last whorl inflated. Aperture 

 is bluish white within, the lip moderately thickened. 



Length 19, diam. 12.2 to 12.9 mm. ; whorls 6. 



