HAWAIIAN NESOPUPAE. 295 



like, deeply seated. Parietal lamella well developed, strong, 

 perpendicular to the parietal wall. Columellar lamella short, 

 horizontally entering, slanting downwards, inwardly, ending 

 abruptly. Two palatal plicae rather short, lamella-like, nearly 

 parallel and rather remote from the peristome, the lower one 

 more immersed. Peristome slightly thickened within, ex- 

 panded slightly except for the upper outer margin which is 

 thin and erect. Length 1.7, diam. 0.98 ; apert., greatest length 

 0.7 mm. 



Hawaii: Palihoukapapa (type loc.), very abundant in the 

 fossil deposits (Henshaw, Thaanum) ; Mana (Thaanum), 

 rather rare. Living specimens on the Flow of 1823, 7,000 ft. 

 elevation (Forbes); Waihou; S. Kona, on ferns (Gouveia). 

 Type 18699 Bishop Museum ; topotypes 36654, Bishop Museum ; 

 44699 A. N. S. P. and in the Thaanum coll. 



Nesopupa baldwini var. centralis Anc., HENSHAW, Journ. of 

 Malacology, xi, September 1904, p. 63. ANCEY, same Journal 

 Sept., 1904, p. 67 ; not N. b. centralis AN GEY, Proc. Malac. Soc. 

 Lond. vi, June, 1904, p. 122. 



This species is closely related to N. anceyana, but the contour 

 is narrower, the palatal folds less widely separated, as are also 

 the angular and parietal lamellae. 



Mr. Ancey named the Palihoukapapa specimens in his col- 

 lection (now in the Bishop Museum) Nesopupa baldwini var. 

 centralis, but the original locality of N. b. centralis was Olaa 

 at the time it was described no Palihoukapapa material had 

 been under examination. Moreover, a form of N. baldwini 

 occurs at Olaa, and the present species has not been found 

 there. The identification was apparently a hasty one, as 

 N. baldwini and its varieties have dorsal sulci, lacking in this 

 species. 



Living examples collected by Forbes at about 7,000 ft. eleva- 

 tion, in the lava flow of 1823, are referable to this species. 

 They are almost similar in size, though the living form has 

 slightly more convex whorls; the color is brussels brown on 

 the last whorl, gradually becoming paler above but none of 

 the specimens have a pale peripheral zone. The surface has 

 an oily sheen and under a strong lens is minutely closely 



