714 



EEY. E. BOOa WATSON Olf THE 



upper part ; the beads are white, and the porcellanous pad round 

 the pillar is dead white, with more of trauslucency towards the 

 centre ; the pillar has a slight ruddy tinge. Spire high, per- 

 fectly conical. Apeoc round, the minute embryonic whorl being 

 completely flattened down. The first three whorls are only ra- 

 diatingly ribbed. On the fourth the highest row of beads begins, 

 on the fifth the supracarinal row appears, and only on the sixth 

 does the intermediate space become covered, previous to which 

 the whorls have a nacreous gleam. Whorls 7 to 8, of very regular 

 increase, flattened and angulated. Sitture itself linear, marginated 

 by the up-lap of the inferior whorl which covers the basal carina ; 

 it is very strongly channelled by the square contraction of the 

 superior whorl beneath the stellate carina. Mouth oblique, round, 

 angulated at the basal carina, with an exquisite soft pearly nacre 

 within. Outer Up sharp, thin, with a broad porcellanous edge, 

 and within this a broad flat nacreous callus ; it is flat on the base. 

 P^7Z«r-%, a broadly expanded porcellanous pad rises in the middle 

 of the base, coils round the pillar, with a slightly swollen outer 

 edge, and advances in front into a blunt round tooth. The edge 

 of the lip is a broad, round, slightly ruddy pillar of nacre which 

 unites itself .with the labial callus. Operculum oval, rounded on 

 the outer and straightish on the pillar contour, thick, with steep 

 straight edges, and a very slight flange on its outer lower margin ; 

 its outer surface white, tubercled, rounded ; its inner surface is 

 flat, brown, lineated, with one large and very many minute whorls. 

 H. 0-82. B. 1-0, least 0-81. Penultimate whorl 0*22. Mouth, 

 height 0-36, breadth O SO. 



Perhaps Turio FhiUppiana, A.. Ad., or T. {Guildfordia) rhodos- 

 tomaj Lam. (Geneva Museum), most closely resembles this spe- 

 cies, which is, however, very distinct and much more beautiful. 

 Strictly speaking, it belongs to none of the Calcar or Astralium 

 groups, but touches several of these. The operculum is unlike 

 that of Stella, of Uvcmilla, or I'omaiilax. The form of the shell 

 is unlike Pachypoma, and neither shell nor operculum suit Litho- 

 poma, Imperator, Tubicanthus, &c. 



2. Turbo teansenita, W. (tmnsenna, a grating.) 



St. 235. June 4, 1875. Lat. ^iP T N., long 138° 0' W. Japan. 

 565 fms. Mud. 1 specimen. 



Animal. — A pale uniform colour : the eyes are large and black, 

 on short processes. There are no frontal lappets between the 



