THE NAUTILUS. 67 



A smooth variety of this species is found associated with Quadrula 

 aurea Lea. In this variety there are only a few small pustules near 

 the umbones and in some specimens even these are lacking. Speci- 

 mens identified by F. C. Baker and Bryant Walker. Several pus- 

 tulous shells of this species that were supposed to have been collected 

 in this county, prove to have come from southern Illinois. 

 Lampsilis purpuratus Lamarck (Variety). 



A number of shells from near Mussel Island in the North Bosque 

 River were first identified as typical L. purpuratus Lk. Later ex- 

 amples of the same type were identified as typical L. bertandieri by 

 Dr. W. S. Strode and Mr. Bryant Walker. The last-mentioned 

 gentleman found three different forms in a second sending from the 

 same locality. These he designates as 

 Lampsilis berlandieri Lea. 

 Lampsilis berlandieri Lea var. 

 Lampsilis purpuratus Lamarck var. 



The variety of L. berlandieri Lk., is very variable in the color of 

 the nacre which ranges from white, through pink and salmon, to 

 dark purple. These shells were found in the ripples above Mussel 

 Island while the examples of the typical form and the specimens of 

 L. purpuratus var., were found in a large bed some distance below. 



DESCRIPTIONS OF NEW SPECIES OF ACHATINELLIDAE, FROM THE 



HAWAIIAN ISLANDS. 



BY D. D. BALDWIN. 



Partulina winniei n. sp. 



Shell sinistral, subperforate, rather thin, elongately conical, apex 

 subacute; surface shining, striated with fine growth lines, and under 

 a lens showing very close and delicate decussating spiral striae ; 

 nuclear whorls faintly decussated. Color white, striped and mottled 

 irregularly with longitudinal dark brown streaks ; apex white. 

 Whorls 6, slightly convex, margined above. Aperture oblique, 

 oval, purplish-white within. Peristome acute, thickened within, 

 columellar margin reflexed. Columella terminating in a slight, 

 flexuous, white fold. 



Length 16; diam. 8 mm. 



