1882. J 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 creuulated. 

 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. 



PsEUDOLivA (Macron) stereoglypta, sp. nov. (Plate V. fig. 8.) 



Shell angularly ovate, j)onderous, 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. Cohimella furnished with a callosity, 

 which is thickened into a tubercle at the upper part and depressed so 

 as to cover the uiibilicus 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. keJlettii and P. cethiops. 



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 xantholetjca, 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, shghtly convex ; 

 last whorl rather convex above, then tapering, contracted and pro- 

 duced at the base. Aperture oblong. Outer lip furnished exteriorlv 

 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 milHm. 



Ilab. Mauritius. 



CoLUMDELLA (Anachis) ostreicola, sp. Hov. (Plate V. fig. 10.) 



Shell minute, subfusiform, blackish brown, longitudinally ribbed, 

 libs slightly nodulous at the upper part ; transversely grooved to- 

 wards the base ; spire acute, rather longer than the mouth ; whorls 



