PLACOSTYLUS. 167 



Genus PLACOSTYLUS Beck. 



Placostylus bivaricosus var. cuniculinsula Cox. (Vol. xiii, p. 26.) 

 References to illustrations should be : pi. 12, f. 5, and pi. 11, f. 1. 



Melania striata Perry, Conchology, pi. 29, f. 5 (1811), Helix mel- 

 ania Fer., Prodr., p. 57, no. 448, is evidently a Placostylus, and may 

 be P. fibratus. 



Subgenus LEUCOCHARIS Pils. 

 PLACOSTYLUS PORPHYROCHILA (Dautz. et Bernier). PI. 48, figs. 



55, 56. 



Shell solid, narrowly umbilicate. Spire conic, turreted. Whorls 

 6, a little convex and joined by an impressed suture ; the last whorl 

 more than half the length of the shell. First whorl usually seen 

 under a strong lens to be sculptured with very fine punctures, ar- 

 ranged in rows ; following whorls ornamented with inconspicuous 

 growth-folds, on the last two whorls there are stronger folds cut by very 

 irregular transverse striae. Aperture ovate and oblique ; peristome 

 broadly expanded, the margins joined by an adnate callus. Colu- 

 mella twisted inwardly, covering the umbilicus outwardly ; lip re- 

 flexed and towards the base broadly dilated. Color dull yellowish- 

 white. Aperture broadly painted with brown within and narrowly 

 margined with white outwardly. Length 43, width 22; length of 

 aperture with peristome 23, width 16 mill. New Caledonia. 



Leucocharis porphyrochila DAUTZENBERG & BERNIER, Journ. de 

 onchyl. xlix, no. 3, p. 215, pi. 7, f. 5, 6 (Oct., 1901). 



A remarkable form, larger than the species of Leucocharis previ- 

 ously known, thicker, with more oblique aperture and brighter color- 

 ing in the mouth. 



Genus AMPHIDROMUS Alb. 



Amphidromus moniliferus Gld. (p. 179). Add the reference: Bu- 

 liminus (Rhachis} theobaldianus Bs., KOBELT, Conchyl. Cab., p. 672, 

 pi. 102, f. 14. 



A. LATESTRIGATUS Schepman. PI. 49, figs. 5, 6. 



Vol. xiii, p. 207. New figures are here given of this beautiful and 

 variable species. 



A. L^EVUS (Miiller). Vol. xiii, p. 214. 



The name was incorrectly given " Icevis " in the text. 



