248 MONILEA. 



be synonymous, but it has the columella shai^ed very differently at 

 the iower part. (PI. 61, fig. 13.) 



M. LENTiGiNOSA A. Adams. PI. 41, figs. 8, 9, 10 ; pi. 60, figs. 23, 



24. 



Shell umbilicate, conical, very solid, whitish, unicolored or 

 obscurely striped or maculate with brown or buff'; lusterless ; spire 

 conical ; apex acute ; sutures imjjressed ; whorls 6 to 7, convex, the 

 last with a tendency to be flattened around the middle ; the entire 

 surface covered with sharp close uneven spiral riblets Avith deeply 

 incised interstices, and very fine, close, longitudinal growth-laraellse, 

 forming compressed beads on the litse, and generally lamella in 

 the interstices. Aperture oblique, rounded-quadrangular, with 10 

 or 11 plicte within, which attain the edge of the lip. Columella 

 short, toothed below, concave and somewhat expanded above. Um- 

 bilicus with a smooth funicle, not very prominent, within. 



Alt. 17, diam. 22 mill. ; alt. 21, diam. 20 mill. 



Philippines; Singapore; Australia at Sivan River, Sharks Bay, 

 Outer Manhj Beach and Cabbage-tree Bay. 



M. lentiginosa A. Ad. P. Z. S. 1851, p. 188. — M. corrugata A. Ad., 

 P. Z. S. 1854, p. 41 (not T. corrugatus Koch). — Tr. lentiginosus 

 Fischer, Coq. Viv., p. 317, t. 100, f. 1. 



Umbilical funicle not nearly so strongly developed as in 31. 

 calliferns. This species has a great similarity to the shell described 

 as Trochns corrugatns by Philippi ; but as Dr. Fischer has pointed 

 out, that is a different species on account of the smooth inside of the 

 aperture. 



M. PATRicius Philippi. PI. 41, figs. 30, 31. 



Shell deeply umbilicated, thick, orbicular-conoid, shining, whitish- 

 ashen, punctate with brown or blackish-violet ; spire acute ; Avhorls 

 7, scarcely convex, separated by a canaliculate suture; spirally cin- 

 o-ulate, the cinguli narrow, remote, granose, 4 to 5 on the penulti- 

 mate whorl ; last whorl subbiangulate in the middle, encircled by 

 unequal line ; base slightly convex, radiately striate and with about 

 8 white and violet articulated concentric lirce ; aperture subrhom- 

 boidal, sulcate within ; columella arcuate, its base truncate-dentate, 

 and above partly covering the umbilicus. Umbilical area white. 



Alt. 15, diam. 18 mill. (Fischer.) 



Central American Coasts (?) 



