LAMINELLA, MAUI. 343 



Length 12, diam. 6 mm. 



West Maui: Waiehu valley (Baldwin) ; Lahaina (Gulick). 



Laminella duoplicata BALDWIN, Nautilus XXII, November, 

 1908, p. 68. 



Differs from alexandri chiefly by the color-pattern, but the 

 small accessory columellar fold seems to be developed more or 

 less in most examples (5 out of 6 seen by H. P.), while in 

 alexandri it is exceptional. Described and figured from co- 

 types, no. 104692, A. N. S. P. A specimen of this variety 

 was found among L. picta from Lahaina, in the Gulick lot. 



10. L. KUHNSI (Cooke). PI. 52, figs. 11, 12; pi. 49, fig. 15. 



" The shell is minutely perforate, sinistral, elongately con- 

 ical, nearly solid, minutely and irregularly striate with lines 

 of growth (the striae slightly stronger just below the su- 

 tures), the first four whorls glossy, the rest somewhat glossy, 

 cinnamon brown (apex darker), with a few indistinct irregu- 

 lar zigzag transverse brown lines on the penultimate and last 

 whorls. Spire elongately conic, apex obtuse. Suture min- 

 utely crenulate, slightly oblique, well impressed. Whorls 6, 

 the embryonic smooth, convex, the rest increasing slowly and 

 regularly, convex, the last somewhat rotundate, tapering 

 towards the base. Aperture rather large, broadly subovate, 

 oblique, whitish within. Columella nearly straight; colu- 

 mellar fold median, oblique, not strongly developed, thick, 

 blunt. Outer margin of lip convex, erect, thin; columellar 

 margin thin, adnate above, below free, reflexed over the um- 

 bilicus. Umbilicus minute, circular. Length 13.4, diam. 6.5, 

 length of ap. (diagonal) 5.5 mm." (Cooke}. 



West Maui: Kahakuloa (Kuhns, Baldwin). Type no. 

 15142, cotypes 16662, Bishop Museum, 



Amastra (Laminella) kuhnsi COOKE, Occasional Papers 

 B. P. Bishop Museum, iii, no. 2, p. 21 (217), (July 24, 1908). 



" Specimens of a Laminella from West Maui under the 

 name of Laminella erecta Pease were kindly sent the Bishop 

 Museum by Mr. D. Thaanum. The shells were, I think, iden- 

 tified by Mr. D. D. Baldwin. Lately the specimens were com- 

 pared with Pease's description and were found to differ con- 



