MONILEA-MINOLIA. 273 



minute ear across the umbilicus, and having toward the point of the 

 pillar a broad backward bevel, cut out of the thickness of the shell 

 round the umbilicus. Umbilicus a shallow open depression, with a 

 deep narrow hole in the center. Alt. 0"15 in., diam. 0"24, least 0"2. 

 Mouth, height O'lS, breadth O'l in. ( Watson.) 



The specimen from which this species is described is not quite 

 full grown. The whorls are not angulated, nor the umbilicus open, 

 nor is the color ruddy, nor the texture thin as in Trochus {Solarielkt) 

 prodictus, Fisch. From Trochus (Solariella) vitiligineus, Mke., 

 from which it differs in these respects, but in a less degree, it may 

 further be distinguished by its greater depression, its smaller mouth, 

 its weaker sculpture, its greater glossiness, its feebler iridescence 

 and its minute umbilicus. ( Watson.) 



Levuka, Fiji 12 fnis. 



T. (Sola7-iella) lamprus Watson, Jouru. Linn.Soc. Lond. xv, p. 93 ; 

 Challenger Gasterojjoda, p. 74, t. 6, f. 9. 



M. ALBUGO Watson. PL 36, figs. 13, 14. 



Shell small, conoidal, with a tumid conical base, bluntly bicarinate, 

 umbilicate with a resinous luster, brown, flecked with crimson and 

 and white. Sculpture : very many irregular oblique faint lines of 

 growth, with a few remote rounded spirals, which are very weak 

 above, stronger on the base, and of which two at the periphery form 

 a feeble double carina. Color : a pale transparent resinous brown, 

 flecked below the sutures and, at the periphery with alternate spots 

 of white and crimson ; the latter color runs in minute zigzag streaks 

 down the shell ; there are also, both above and on the base, a few 

 delicate spirals of alternate crimson and white specks. Spire rather 

 low, with curved profile lines and a blunt round apex. Whorls 5, 

 rounded and sloping above, flat at the jieriphery, and tumid on the 

 base. Suture linear and very slightly depressed. Mouth rather 

 large, round. Outer lij) thin. Inner lip thin, hollowed out back- 

 wards, and bending somewdiat across the umbilicus. Umbilicus a 

 broad shallow funnel, contracting to a small deep hole. Alt. 0'125 

 in. ; diam. 0'2, least 0*15. Mouth (in consequence of obliquity), 

 height 0-125, breadth 0*1 in. (Watson.) 



This species differs from Trochus (Solariella) lamprus W., in being 

 higher, with a larger mouth, and most of all in color and in sculpt- 

 ure. It is perhaps most like Trochus (Solarielkt) vernicosus Gould, 

 18 



