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76 CONTRIBUTION TO THE PALEONTOLOGY OF TRINIDAD. 



Remarks. — At the first glance this shell might be taken for the species which 

 was found accompanying it, F. bocarepertus; but the character of the sculpture 

 differentiates them. 



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



Geological horizon. — Lignitic Eocene. 



Genus CLAVELLA (Swainson, 1835) Agassiz, 1846. 

 Clavella harrisii new species. Plate X, Figure 25. 



Description. — Shell rather solid, fusiform, spire and anterior canal long, taper- 

 ing nearly equally to acute apices; number of known whorls, five; body whorl 

 with only the faintest suggestions of obsolete longitudinal folds, penultimate 

 whorl also nearly smooth, but the whorl preceding that is sculptured with about 

 eight strong nodular costse; these are also present on the two whorls next above; 

 the third, fourth and fifth whorls (counting upwards) are ornamented with fine, 

 rather regular spiral threads, which are not present on the body and penultimate 

 volutions; these are marked only by lines of growth, and are quite strongly 

 carinated by a broad, subsutural sulcus, which makes the upper part of these 

 two whorls concave. 



Height of the single fragment found 29, greatest width 14 mm. 



Remarks. — No Clavella at all resembling this has yet been found in the Midway 

 Eocene of the southern States. 



C. kennedyanus™ was described by Professor Harris from the Lower Claiborne 

 of Texas, and was later found by him in the Lignitic of Alabama. This bears a 

 considerable resemblance to the Soldado form, but the two latter whorls are evenly 

 rounded, not carinated. The genus came in with the Eocene and flourished 

 during that period. It has since constantly diminished, until at present there is 

 but a single species in existence. This is C. serotina Hinds, living in the Poly- 

 nesian waters. 



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. 



The writer takes much pleasure in naming this species in honor of Professor 

 G. D. Harris, of Cornell University. 



Clavella hubbardanus ? Harris. Plate X, Figure 26. 



Fusus hubbardanus Harris, Bull. Am. Paleont., vol. I, p. 201, pi. 8, figs. 10, 11, 1896. 



Harris 7 original description. — " General form and size as indicated by the 

 figures; whorls at least 10; ornamented by (a) spiral lirations, about five very 

 strong ones below the shoulder, with an equal number of fainter alternate striae, 

 and five or six faint ones above, growing fainter as they approach the suture; 

 (6) by obtuse nodular costations, 14 on the penultimate whorl strong at the 

 shoulder but dying out rapidly above, less rapidly below; lines of growth fine 



M Clavilithes kennedyanus Proc. Acad. Nat. Sci. Phila., p. 73, pi. 7, fig. 8, 1895. 



Li. 



