ANCET : ON HAWAIIAN MOLLUSCA. 123 



marginibus distantibus, callo inconspicuo junctis, supero extus sub- 

 angulatim producto. 



Long. 1-5, lat. vix 1, long, apert. -5 mm. 



Kah. — In valle Nuuanu, Oahu (D. Thaanum). 



Nesopupa Thaanttmi, n.sp. 



Testa dextrorsa, minute riraato-perforata, laete comeo-lutea, nitidula, 

 subpellucida, costulis membranaceis argenteo-micantibus debilibus 

 atque valde deciduis, inter se sat distantibus decorata, subconoideo- 

 ovata, obtusa. Anfractus \\ convexi, sutura impressa, summo sat 

 minuto ; ultimus subsaccatus, basi vix attenuatus, ad finem tantisper 

 ascendens, pone aperturam extus levissime impressus, breviter ovatus. 

 Apertura recta, truncato-ovalis, subrotundata, extus producta et antice 

 sinuata (ante mediam partem marginis dextri), lamellis validis alhis 

 armata, scilicet : angulari arcuata, elongata sed brevi, marginem 

 attingente, palatali 1 paulo prof undiore, longe intrante ; columellari 1 

 transversa, interna, et palatalibus 2, superiore magis extera, ambabus 

 elongatis sed baud valde longis. Peristoma ang-uste expansum, 

 marginibus sat remotis. 



Long. 1*33, lat. 1, alt. apert. '5 mm. 



Hah. — Olaa, Hawaii (D. Tbaanum). 



Somewbat allied to N. Newcomli, Pfr., like the two following, but 

 of lighter colour, and remarkable on account of its white aperture and 

 laminae. The true Newcomhi, which seems to be rare, was found by 

 Mr. Thaanum at Waipio pali, Hawaii. It is very globose, very much 

 like N. admodesta and N. acanthinula in that respect, and the angular 

 lamella is punctiform, reduced to a mere tubercle. 



Nesopupa "Wesletana, n.sp. PI. VII, Fig. 16. 



Testa oblonga, tenuis, perforata, vix nitida, sub valida lente 

 granulata, fusco-cornea, costulis membranaceis obliquis et distantibus 

 plus minusve deciduis, in ultimo anfractu subflexuosis ornata. Spira 

 ohlonga, obtusula. Anfractus 5 convexi, sutura impressa discreti, 

 ultimus oblongus, ad finem tantisper subascendens, basi leviter 

 attenuatus, prope aperturam vix dilatatus. Apertura verticalis, 

 truncato-ovata, basi levissime recedens, i altitudinis subsequans, intus 

 fuscula, 5-plicata ; peristoma haud continuum, uudique expansum et 

 reflexum, crassiusculum, sublabiatum, labio concolore fusco. Plica 

 angularis arcuata, elongata, subflexuosa, parietalis 1 paulo pro- 

 fundior, submediana; columellaris 1 acuta, profunda; palatales 2 

 elongatse, parallelae, infera magis profunda. 



Long. 2, lat. 1, long, apert. ca. '75 mm. 



Hah. — Hilo, Hawaii (D. Thaanum) ; Waipio pali, Hawaii (H. W. 

 Henshaw, D. Thaanum) ; Kaupakalua, Maui (D. D. Baldwin) ; 

 " Waianae Mountains," Oahu (D. D. Baldwin). 



An abundant and widely spread species, which I took at first for 

 the true Newcomhi, a much more rounded shell, with different lamellae. 

 Named in honour of the late Dr. Wesley Newcomb, a well-known 

 writer on Hawaiian and West Coast shells. 



