usr 



IE 



|1SN 



I1SN 



72 CONTRIBUTION TO THE PALEONTOLOGY OF TRINIDAD. 



" Length V/2 inch. 



"Geological horizon. — Eocene of Alabama." 



Remarks. — A single specimen of this striking species was found by Mr. 

 Veatch at Soldado Rock. It is fragmentary and eroded, but can easily be recog- 

 nized by its peculiar and characteristic aspect. In the Soldado shell the sharp 

 spines are very prominent, and (as in the type) developed on the most convex 

 portion of the whorls some distance above the suture. 



The Soldado form was evidently unusually large and heavy, for the fragment 

 has an altitude equal to that of the entire shell from Alabama. 



This species is found in the Midway and Lignitic horizons of Alabama. 



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



ES; 



ES 



Z 



c 



2 



■J 



>NII 



■ 

 C 

 (/ 



I 



5 



CO 

 UJ 



i 



m 



_i 

 Jl i 



r- 



03 

 TO 



> 



JO 



Genus FUSUS (Klein, 1753) Lamarck, 1801. 

 Fusus colubri new species. Plate X, Figure 18. 



Description. — Shell small, very slender, fusiform; number of whorls known 

 four; longitudinal sculpture of narrow, well-marked riblets (about ten on the last 

 volution), and of fine lines of growth, visible only with a lens; transverse sculpture 

 of spiral threads which are more distant from one another and more prominent 

 where they revolve over the riblets of the body whorl; aperture small, rounded; 

 canal very straight, long and slender. 



Height of incomplete shell 25, greatest width 10 mm. 



Remarks. — The slender, elongated form of this shell recalls such species as 

 Fusus meyeri Midway variety, and F. ottonis Aldrich from the Alabama Lignitic 

 Eocene, but the whorls of both those shells are carinated. 



The nearest analogue of the Soldado shell is Dr. White's F. longiusculus from 

 the Rio Maria Farinha beds, Brazil. That has the same uncarinated, convex 

 whorls and apparently the same number of riblets; it also corresponds nearly in 

 size. The difference is chiefly in the transverse sculpture, the spiral threads 

 in the Brazilian shell being more pronounced and much further apart. 



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



Geological horizon. — Midway Eocene. 



Fusus bocarepertus new species. Plate X, Figure 17. 



Description. — Shell rather short and broadly fusiform; number of whorls not 

 known, the single specimen being very imperfectly preserved; the distinguishing 

 characteristic is the regular, spiral, rather distant, grooving, which ornaments the 

 surface of the shell; longitudinal sculpture of subequal rounded riblets, about six 

 on the last volution. 



Height of incomplete shell 20, greatest width 12 mm. 



Remarks.— Though not greatly resembling the typical forms of Fusus subtenuis 

 Heilprin, this species is quite like in general form specimens in the Cornell 



CO 



> S 

 co 



2 



co 



