204 BULLETIN OF THE 



Eupleura Stimpsonii n. s. 



Shell small, thin, whitish, not polished, with four varices to the whorl and 

 five whorls; nucleus smooth, white; spiral sculpture of extremely fine faint 

 striae, and of (on the last whorl) five low keels, most prominent on the back of 

 the varices. The posterior keel is produced at the shoulder as a spine, which 

 on the front side of the varix looks as if it were holding up the webbing of the 

 varix as a tent-pole holds a tent; the other keels are represented on the front 

 of the varix only by shallow grooves. The transverse sculpture is composed of 

 well marked incremental lines; above the spine on the last whorl the web 

 of the varix extends to the fifth preceding varix; below the spine it follows 

 the outline of the aperture, nearly, and terminates midway down the canal; 

 the margin is even except at the spine and the ends of the grooves; aperture 

 rounded, continuously marginate except at the open narrow canal; there are 

 four teeth inside the outer lip in front of the spine, and three near the front of 

 the inner lip ; the canal is slightly recurved, the end of the antecedent canal 

 projecting from it at the left; suture well marked. Max. Ion. of shell, 12.0; 

 of last whorl, 9.0; of aperture, 3.0; of canal, 4.0; max. lat. of aperture, 2.2; 

 of the varix at the spine, 2.8; of the shell, 7.0 mm. 



Habitat. Barbados in 100 fms. A fragment in 1002 fms., off Cape San 

 Antonio. 



This is a very short and triangular little species, which was dredged alive ; 

 but the alcohol spoiled, and the soft parts and opercula were lost before I 

 received the jar. 



Genus TROPHON Montfort. 



This genus has been very properly divided by Fischer and others into sec- 

 tions, sufficiently well characterized for the most part* 



* In connection with this genus it may be as well to clear up the synonymy of 

 a West Coast species which has fallen into confusion. 



Trophon (Boreotrophon) Dalli Kobelt. 

 Trophon muriciformis Dall, Proc. Cal. Acad. Sci., VIII., extras, p. 4, March 19, 1877 ; 



Proc. U. S. Nat. Mus., IX. 302, pi. iv fig. 6. 

 Trophon Dalli Kobelt, Mar. & Chemn., ed. Kuster, N. Ausg., t. lxxiv. fig. 1. 

 Trophon Gondridgri Forbes, MS. name on tablet in British Museum. 

 Trophon Gooderichii Sowerby, Thes. Conch., pi. ccccv. figs. 25, 26, 1880, as of Forbes ; 



in error. 

 Trophon coronatus Sowerby, not of A. Adams. 



Not Trophon? (" Buccinum") muriciformis King, Zoiil. Journ., V. p. 348, 1831. 

 Not Eupleura (" Ranella ") muriciformis Broderip, P. Z. S. 1832, p. 179. 

 Not Trophon muriciformis Sowerby, Thes., sp. 38, pi. ccccv. fig. 40, 1880, wrongly as 



of Philippi (= Fusus albidus Phil. = Trophon Gerversianus Pallas, testa jun.). 



The blunders of Mr. Sowerby in this connection are almost incredible. There 

 is no Trophon Gooderichii Forbes, nor T. muriciformis Philippi. The Buccinum muri- 



