268 AMASTRA, MOLOKAI. 



75. A. MUCRONATA (Newcomb). PI. 40, fig. 9. 



Shell dextral, elongate-ovate, white with numerous trans- 

 verse, arrow-headed brown markings except last whorl which 

 is covered with a dense brownish-black epidermis; whorls 

 6, rounded, the last contracted; suture slightly impressed in 

 the upper portion, becoming deep at the junction of the last 

 whorl. Aperture small, ovate; columella with a twisted plait; 

 lip simple. Length .7, diarn. .32 inch [17.5x8 mm.] (Newc.). 



Molokai (Newcomb, Baldwin). 



Achatinella mucronata NEWCOMB, Annals of the Lyceum 

 of N. H. of N. Y., vi, 1853, p. 28; Proc. Zool. Soc. Lond., 

 1853, p. 146, pi. 23, fig. 49. PFR., Monogr., iv, 553. Amastra 

 mucronata Nc., PEASE, P. Z. S., 1869, p. 650. SYKES, Fauna 

 Hawaiiensis, p. 340. BORCHERDING, Zoologica, xix, p. 118, 

 not pi. 10, f. 17. A. mueronata Newc., HARTMAN, Proc. A. 

 N. S., Phila., 1888, p. 47. Achatinella fusiformis PFR., P. Z. 

 S., 1855, p. 5, pi. 30, f . 18 ; Monogr., iv, 550. 



PI. 40, fig. 9 is copied from Newcomb 's type figure of A. 

 mucronata. 



The description of A. fusiformis (which Baldwin, Sykes 

 and Borcherding agree is an absolute synonym of mucronata) 

 follows. It is a smaller shell than typical mucronata. A. 

 fusiformis Pfr. (pi. 40, fig. 10, copied from Pfr.). " Shell 

 imperforate, fusiform-oblong, rather thin, striatulate, deep 

 brown, mottled and obliquely lineolate with a pale tint. Spire 

 convexly-conic, apex black, acute; suture simple; whorls 7, 

 slightly convex, the last forming two-fifths of the total length, 

 tapering at base. Aperture oblique, ellipsoidal; the colu- 

 mellar fold small, compressed, obscurely doubled; peristome 

 simple, unexpended, the right margin regularly arched, colu- 

 mellar margin narrowly adnate. Length 14, diam. 6%, aper- 

 ture 6 mm. long, 3 wide." Sandwich Islands, Frick. (Pfr.) 



In his article in the P. Z. S., Newcomb gives the locality 

 for mucronata as Mani possibly an error, as he has stated 

 that he did not see proofs of that article. It must be noted, 

 however, that some very similarly marked shells occurring at 

 Wailuku, West Maui, have been identified by Gulick -as A. 

 mucronata. The shells figured by Borcherding are certainly 



