102 AURICULELLA, MOLOKAI. 



20. A. NEWCOMBI (Pfeiffer). PI. 28, figs. 1, 2, 3, 4. 



' ' Shell sinistral, very shortly rimate, turrited, thin, slightly 

 striate, glossy, pellucid, pale corneous; ornamented with a 

 reddish band ; spire elongate, acute ; whorls 7, nearly flat, the 

 last nearly equal to one-third of the length, furnished in the 

 parietal wall with an oblique lamella, rotund at the base; 

 columella slightly twisted-plicate ; aperture oblique, semioval ; 

 lip thin, slightly expanded, columellar margin dilated above, 

 reflexed. Length 7, diam. 3 mm; aperture 2^ mm. long " 

 (Pfr.). 



Molokai (Newcomb in coll. Cornell Univ.) ; Kalamaula 

 (Perkins) ; Puunea, and northward to the pali (Cooke & Pils- 

 bry). 



Balea newcombi PFR., Proc. Zool. Soc. London, 1853, p. 67. 

 Auriculella newcombi SYKES, Fauna Hawaiiensis ii, p. 377. 

 Not of Borcherding, Zoologica, part 48 2 , p. 139, pi. 9, figs. 

 17, 18. Achatinella obeliscus PFR., Mon. Hel. Viv., iv. p. 570. 

 Auriculella obeliscus PFR., Mon. Hel. Viv., viii, p. 213. 



I have seen the shells in the British Museum and in New- 

 comb's collection. The species is distinct from any other and 

 has some resemblance to A. tenella Ancey, from Oahu. The 

 two are, however, easily separable. It is most nearly related 

 to A. cerea, but that species is larger, with a strong parietal 

 callus. 



The figures purporting to be of this species in Zoologica 

 represent a banded variety of A. ~brunnea. In the typical 

 forms of A. newcombi the basal outline is more truncate and 

 the aperture more diagonal than in Borcherding ? s figures. 



The Puunea shells vary from cinnamon to chamois, the 

 lighter ones often indistinctly streaked with cinnamon; and 

 either color may be banded with chestnut-brown or sometimes 

 a darker shade of the body-color at the periphery. The base 

 is very convex, the lip thin, and the parietal callus is not 

 thickened at the edge this and its somewhat thinner shell 

 being the main distinctions from A. cerea. Length 6.8, ob- 

 lique diam. 3.2 mm., with 7 whorls. All of the specimens 

 seen are sinistral. 



