PLACOSTYLUS, FIJI IS. 113 



among the larger ; the spire white. Surface nearly lusterless, sculp- 

 tured with irregular growth-wrinkles, and either conspicuously or 

 lightly malleated spirally. Whorls nearly 5, slightly convex, the 

 last inflated. 



Aperture long-ovate, white, faintly brown-tinted, or with gray 

 markings within ; peristome broadly reflexed, especially below, 

 white; columellar margin dilated, free. Columella having a rather 

 angular fold above. 



Alt. 59, diam. 30 ; aperture 39 mill. 



Alt. 50, diam. 25 ; aperture 34 mill. 



Viti Levu and Ovalan Is., Viti group ; arboreal (Garrett). 



Bulfmus maUeatus JAY, Revue Zoo!., 1842, p. 80 ; Guerin's Mag. 

 de Zool., 1843, pi. 61. PHILIPPI, Abbild. u. Beschreib. ii, p. 10, 

 BuL, pi. 3, f. 4. PFR., Monogr. ii, p. 55 ; iii, 316 ; iv, 378 ; vi, 23 ; 

 viii, 34 GARRETT, Amer. Journ. Conch., vii, 1872, p. 231. 

 REEVE, Conch. Icon., pi. 29, f. 174. DESH. in Per., Hist., p. 47, 



pi. 144, f. 11, 12 GLD., U. S. Expl. Exped., Moll. p. 81, f. 78 



CHENU, Man. Conch., i, p. 436, f. 4201 CROSSE, J. de C., 1864, 

 p. 136; 1875, p. 20. Placostylus maUeatus Mouss., J. de C., 1870, 

 p. 125. SCHMELTZ, Catal. Mus. Godetf'roy, v, p. 92. GARRETT, 

 P. Z. S., 1887, p. 179. KOBELT, Conchyl. Cab., p. 29, pi. 7, f. 2, 3. 



The malleation is inconspicuous in some shells, and the character- 

 istic olive-brown blotches are sometimes wanting or very sparse. 

 Such specimens resemble P. morosus, but may be known by the 

 larger size, more oblong aperture, flattened basal lip, etc. In a series 

 of h'fteen specimens before me, no two are alike in markings. 



P. MOKOSUS (Gould). PI. 41, figs. 78, 79. 



Shell compressed-umbilicate, rather acutely ovate, thin, pure white 

 throughout. Surface but slightly shining, rudely, coarsely and irreg- 

 ularly wrinkled longitudinally, slightly malleated in places. Spire 

 rather slender, the apex obtuse, the earlier whorls punctate. Whorls 

 5, moderately convex, the last inflated. 



Aperture large, ovate, vertical, white ; the peristome broadly re- 

 flexed and recurved at the edge, its face convex ; columellar margin 

 dilated, the columella having a rather strong fold above. 



Alt. 50, diam. 26 ; aperture with peristome 33 mill. 



Alt. 44, diam. 23^ ; aperture with peristome 30 mill. 

 8 



