CONTRIBUTION TO THE PALEONTOLOGY OF TRINIDAD. 73 



Paleontological Museum of a variety of Heilprin's species from the Lignitic of 

 Alabama. But instead of a series of groovings that shell has raised flattened 

 threads. 



Locality. — Bed No. 8, Soldado Rock, Gulf of Paria, near the southern Bocas. 

 Hence the name. 



Geological horizon. — Lignitic Eocene. 



Fusus bocaserpentis new species. Plate X, Figures 15, 16. 



Description. — Shell of moderate size, stout, broadly fusiform, number of 

 whorls known seven, earlier whorls eroded; transverse sculpture of (a) undulate, 

 nodular costse (seven on half of the body whorl), developed on all the whorls, 

 but only on the most convex portion of the last, where they become obsolete 

 above and below, and (b) of irregular, wavy lines of growth; spiral sculpture of 

 coarse, subequal revolving lirse; the latter intersect the finer lines of growth 

 and give the surface of the shell when viewed under a lens a reticulated appear- 

 ance; sutural lines not impressed, angulated; upper portion of whorls rendered 

 concave by a broad, shallow subsutural sulcus. 



Height of spire 35, greatest diameter 22 mm. Length of canal not known. 



Remarks. — This shell is unlike any described from the Midway beds of either 

 the United States or Brazil. 



The only species at all of the same general outline and type of sculpture is 

 Fusus harrisi Aldrich 47 from the Lignitic Eocene of Gregg's Landing, Alabama; 

 but that is a smaller shell with only about half as many ribs and with much weaker 

 revolving lirse. 



Locality. — Bed No. 2, Soldado Rock, near the Serpent's Mouth, Gulf of Paria. 



Geological horizon. — Midway Eocene. Equivalent to the Midway of Alabama 

 and that of the Rio Maria Farinha beds, State of Pernambuco, Brazil. 



Fusus longiusculoides new species. Plate X, Figure 19. 



Description. — Shell small, slender, fusiform, number of volutions known four; 

 longitudinal sculpture of rounded ribs (eight on the penultimate whorl), which 

 extend from suture to suture; spiral sculpture of sharply-defined, equidistant 

 threads of which there are six on the next to the last volution; canal straight; 

 other characters of the aperture lacking. 



Height of fragment 12, greatest width 5 mm. 



Remarks. — This shell resembles in its general form and type of sculpture Dr. 

 White's Fusus longiusculus from the Midway beds of Maria Farinha, Brazil. 

 It is also akin to our Soldado Midway species, Fusus colubri. 



Locality. — Bed No. 8, Soldado Rock, Gulf of Paria. 



Geological horizon. — Lignitic Eocene. 



Fusus meunieri new species. Plate X, Figure 20. 



Description. — Shell small when complete, rather broadly fusiform; number of 

 whorls known four, very convex, slightly angulated; longitudinal sculpture of 



"Bull. Amer. Pal., vol. I, p. 64, pi. 4, figs. 2 and 8, 1895. 



