60 TROPHON. 



the whorl near the suture. Small and young specimens have 

 the varices closer and less prominent. 



2. albolabratus, f. 29, E. Smith. — Testa T. Cr'eversiano 

 simili sed ovata, anfractibus rotundis, spira elevata, varicibus 

 crebris, angustissime exfoliatis ; apertura intus purpureo- 

 fusca labio externo albo, incrassato, crenato. — Form more 

 oval, spire more produced, laminated varices much more 

 numerous and less produced than F, Geversianus. Outer 

 lip white, thickened and crenulated. 



3. PmLipriNARUM, f. 21, Dunker. — Testa globoso-subovata, 

 purpureo-fusca, spiraliter leviter sulcata, longitudinaliter 

 rotundo-plicata; anfractibus superioribus parvis longitudina- 

 liter liris acutis plicatis ; apertura latiuscula, margine albo 

 subexpanso laqueato. — Although without distinct laminated 

 varices, the species exhibits, in its younger stages, a tendency 

 to sharpness of the longitudinal ribs or stria?, and the shape 

 and colouring give it the appearance of T. albolabratus 

 denuded. 



4. laciniatus, f. 13, Martyns. — Testa ovato-fusiformis 

 purpurea, lsevi, spira elevata, anfractibus scalariformibus 

 superne prope suturam angulatis, supra angulum subex- 

 cavatis ; varicibus albis distantibus, late exfoliatis, ad 

 angulum in spinis latis acutis elevatis, canali latiusculo, 

 apertura lsevi. — Very much more fusiform than T. Geversi- 

 anus, with elevated spine, smooth between the varices, and 

 the varices raised in laminated spines on the angle of the 

 whorls. 



5. clathratus, f. 3, 18, 51, 35*, Midler. — Testa fusiformis 

 lasvis alba, inter varices pallide purpureo-carnea ; varicibus 

 distantibus laminatis exfoliatis ornata; spira producta, 

 anfractibus subscalariformibus, versus suturam angulatis, 

 nonnunquam ad angulum in spinam fornicatam productis ; 

 apertura pyriformis, columella rectiuscula. — I am indebted 

 to M. K. Bell for probably one of the most characteristic 

 specimens ever seen of the variety Gunneri, f. 35*, charac- 

 terised in the last line of the above description as having the 

 laminated varices produced into vaulted spines at the angle. 

 The shell figured as 51, which seems halfway between var. 

 f. 35* and the normal form f. 18, is from Puget Sound, and 

 has been named T. multicostatus by Escholtz. 



