1882. ] NEW SPECIES OF SHELLS. 119 
punctured grooves, light brown, longitudinally promiscuously 
streaked with pale straw-colour and dark brown, pale straw-colour 
in the grooves, interrupting the dark longitudinal streaks; spire 
nearly equal in length to the mouth; whorls 9, sloping, scarcely 
convex ; last whorl rather convex in the middle, and very slightly 
tapering towards the base. Aperture rather narrow, not contracted 
at the base, interior smooth, white; columella furnished with six 
small plaits, the lower one being scarcely visible. Lip crenulated, 
Length 31, greatest width (about the middle of the shell) 10 millim. 
The light-coloured grooves intersecting the dark flames give a 
marked character to the painting of this shell. 
Psruporiva (Macron) stEREOGLYPTA, sp. nov. (Plate V. fig. 8.) 
Shell angularly ovate, ponderous, white ; spire rather short, 
turreted ; whorls 5, convex, rounded at the angle, depressed at 
the suture, with a prominent ridge between the suture and the angle ; 
the last whorl has the upper angle somewhat rounded, and a second 
equally rounded angle a little below, sides slightly convex, with three 
rather broad deep grooves near the base; umbilical ridge thick and 
broad. Aperture oblong-oval, smooth, white within. Lip very. 
thick at the upper part. Columella furnished with a callosity, 
which is thickened into a tubercle at the upper part and depressed so 
as to cover the unbilicus at the lower. Length 75, width 51 millim. 
Length of aperture 43, width 21 millim. 
The specimen is unfortunately in bad condition, the outer surface 
being much worn and the lip imperfect ; but it is certainly worthy of 
notice, being the largest species of a very limited genus, and of a 
bold and striking outline, entirely different from the two largest 
species hitherto known, P. kellettii and P. ethiops. 
I have not attempted to describe the surface of the shell, on 
account of its condition; but there are faint indications of obsolete 
sulci, with a sort of malleation between. 
ENGINA XANTHOLEUCA, sp. nov. (Plate V. fig. 9.) 
Shell fusiform, white, painted with yellow from the lower extre- 
mity to nearly halfway up the body-whorl, the colour terminating 
abruptly; longitudinally rather obliquely and distantly ribbed ; 
spirally closely and deeply grooved ; spire elevated, about equal in 
length to the aperture, rather tumid; whorls 6, slightly convex; 
last whorl rather convex above, then tapering, contracted and pro- 
duced at the base. Aperture oblong. Outer lip furnished exteriorly 
with a slightly flattened frilled varix, and interiorly with six elon- 
gated tubercles or teeth. Columella smooth. Canal moderate, 
slightly recurved. Length 15, width 6 millim. 
Hab. Mauritius. 
CoLUMBELLA (ANACHIS) OSTREICOLA, sp. nov. (Plate V. fig. 10.) 
Shell minute, subfusiform, blackish brown, longitudinally ribbed, 
ribs slightly nodulous at the upper part; transversely grooved to- 
wards the base ; spire acute, rather longer than the mouth ; whorls 
