280 ACHATINELLA LORATA. 



3. Streaked pattern in large part lost, with the deciduous 

 cuticle, leaving a white shell, colored on the parietal wall. 

 Sometimes with a basal band or patch of chocolate, in the 

 prismatic layer of shell. 



4. Cuticle white at all stages of growth; distinguishable 

 from blanched forms of no. 3 by the white parietal wall. 



All of these patterns of cuticle are subject to alteration by 

 partial or total loss of the thin colored layer, which is usually 

 more or less deciduous. Any of them may have a dark basal 

 band or patch in the under layer of shell, which is unaffected 

 by loss of cuticle. Patterns 1, 2 and 3 intergrade freely, and 

 usually two, three or all of them may be found in one colony 

 on Tantalus, where it is still rather common, living in bunches 

 of leaves. The same patterns occur in Makiki, pi. 52, figs. 2-3c. 



Manoa. Mr. Spalding collected a small lot (no. 96 of his 

 collection), in eastern Manoa (I suppose on the division ridge 

 near the main ridge) some years ago, the most eastern local- 

 ity known. The shells are plain white or have traces of two 

 yellow bands, columella mostly pink. 



Mount Tantalus (pi. 52, figs. 1-1& ; pi. 51, figs. 4-8), and 

 Makiki valley (pi. 52, figs. 2-3c). The shell varies a good 

 deal in size and shape, as shown in the figures. The lip and 

 columella are usually a brownish flesh tint (vinaceous pink, 

 Japan rose etc. of Ridgway) ; rarely white. 



A. ventrosa Pfr. and A. pallida (Nutt.) Reeve are merely 

 color-forms occurring in mixed colonies together with other 

 patterns, from Tantalus to Nuuanu. They have no racial 

 status. No doubt the types of pallida as figured by Reeve 

 were from Tantalus. A. ventrosa also has the look of a Tan- 

 talus shell, though much the same pattern goes as far west as 

 Moanalua. The original description follows : 



11 A. ventrosa Pfr. [pi. 30, fig. 20, photographic reproduction 

 of Pfeiffer's figure]. Shell imperf orate, ovate-conic, rather 

 solid, striate, white, covered downwards with a tawny, black- 

 streaked epidermis ; spire conic, obtuse ; whorls 5%, inflated, 

 the last a little shorter than the spire, base rounded ; aperture 

 nearly diagonal, broadly auriform, white within; columellar 

 fold thick, tooth-like ; peristome lipped within, the right mar- 



