94 BEV. B. BOOG WATSON ON THE 



sion, witli a deep narrow hole in the centre. H. 0'15. B. 0*24, 

 least 0-2. Penultimate whorl 005. Mouth, height 0*13, breadth 

 01. 



The specimen, from which this species is derived is not quite 

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

 open, nor is the colour ruddy, nor the texture thin, as in T. (S.) 

 angulatus, Ad. From T. ($.) 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. 



21. Trochus (Solabiella) albugo, n. sp. 



Apr. 17-18, 1874. Port Jackson, Sydney. 2-10 fins. 



Shell. — Small, conoidal, with a tumid conical base, bluntly bi- 

 carinate, umbilicate, with a resinous lustre, brown, flecked with 

 crimson 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. Colour. A pale transparent 

 resinous brown, flecked below the sutures and at the periphery 

 with alternate spots of white and crimson ; the latter colour 

 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 con- 

 tours and a blunt round apex. Whorls 5, rounded and sloping 

 above, flat at the periphery, and tumid on the base. Suture 

 linear and very slightly depressed. Mouth rather large, round. 

 Outer lip thin. Inner lip thin, hollowed out backwards, and 

 bending somewhat across the umbilicus. Umbilicus a broad 

 shallow funnel, contracting to a small deep hole. H. 0125. 

 B. 0*2, least 015. Penultimate whorl 0*05. Mouth (in conse- 

 quence of obliquity), height 0125, breadth O'l. 



This species differs from T. lamprus, ~W\, in being higher, with 

 a larger mouth, and very unlike in colour and in sculpture. It is 

 perhaps most like T. (S.) vernicosus, Grould, but that is flatter 

 and has a much wider umbilicus. 



Echinella, Swainson. 



EcHINELLA (?) TECTIFOBMIS, n. Sp. 



St. 235. June 4, 1875. Lat. 34° 7' N., long. 138° E. Japan. 

 Bottom temp. 38°'l F. 565 fms. Mud. 



