AMASTRA, LANAI. 239 



4, 8, of plate 39, show shells retaining the cuticle, which is 

 figured in characteristic patterns. 



A. baldwinii Newcomb, was based upon a small example 

 with the spire rather straightly conic, and the cuticle adher- 

 ing in patches. Entirely similar shells are in several of the 

 large lots of magna before us. Newcomb conceded its identity 

 with magna. The original description and figure follow. 



" Achatinella baldwinii (pi. 39, fig. 1). Shell dextral, con- 

 ically elongate, striated longitudinally ; whorls 7, slightly con- 

 vex, not margined; suture simple, well-impressed; aperture 

 elongate-ovate ; columella long, with a white plicate tooth ; 

 lip acute, margined within with brown. Aperture bluish- 

 white ; labrum with a white deposit; color of shell light 

 brown, with traces of a thin black epidermis ; first four whorls 

 black. Length 2.1, diarn. 10 twentieths of an inch. This 

 species is dedicated to the Rev. Mr. Baldwin of Lahaina. It 

 belongs to the limited group of A. gigantea and A. violacea. 

 There has been but one specimen as yet obtained " (Newc.). 



Rana.i. Length 21, diam. 10 twentieths of an inch (Newc.). 



Ac/Kit utella gigantea Newcomb has been considered a syn- 

 onym of violacea by Pease, Hartman, Borcherding and Sykes, 

 who remarks that probably the locality of Maui, given by 

 Newcomb, was an error, as his specimen appears to be only an 

 elongate form of the Molokai shell. Specimens received from 

 Dr. Newcomb are certainly A. magna. The callosity " con- 

 tinued to unite with the outer lip " is a character of magna, 

 not of violacea. It seems to be an absolute synonym of 

 magna. The original description and figure are copied: 

 ^Achatinella gigantea (pi. 40, fig. 1). Shell dextral, elon- 

 gate-ovate, apex pointed ; whorls 7, strongly striate, slightly 

 carinated superiorly on the last whorl, inferiorly on the penul- 

 timate ; columella slightly arched, terminating internally in a 

 slight 'callosity; externally continued to unite with the outer 

 lip ; columellar lip with a strong deposit spread over its sur- 

 face; outer lip simple; suture deep; strife longitudinal; color 

 light plumbeous externally, internally pale lilac. Length l 1 /^, 

 diam. 12 twentieths of an inch. Haleakala, Maui ' (New- 

 comb}. 



