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1031 



TERTIARY FAUNA OF FLORIDA 



With it was found a single valve which could only be referred, after care- 

 ful comparisons, to the recent T. mera Say, still abundant in the Antillean 

 region, Bermuda, and on our southern coast. 



Tellina (Merisca) dinomera n. sp. 

 PLATE 47, FIGURE 19. 



Pliocene marls of the Caloosahatchie River, Florida ; Dall. 



Shell solid, rotund, rather convex, nearly equilateral ; beaks pointed, with 

 a small narrow lunule impressed before them ; surface faintly concentrically 

 striate with no radial lines, and with numerous, regularly spaced, elevated, 

 concentric lamellae ; a well-marked radial fold borders the dorsal area below ; 

 hinge normal, strong, sinus gibbous, not attaining the anterior adductor and 

 about half confluent below. Lon. 18, alt. 15, diam. 8 mm. 



This differs from the closely allied T. mera Say, also found in the same 

 marls, by being much heavier and more strongly sculptured and with the 

 dorsal slope more abruptly descending behind ; T. promera Dall, also very 

 similar, has the lateral teeth nearer the cardinals and a larger and more gib- 

 bous pallial sinus, free from the adductors in both valves. 



Tellina ( Cyclotellina ) fausta Donovan. 



Tellina fausta Donovan, Nat. Hist. Brit. Shells, iii., pi. 98, 1801 ; Dillwyn, Descr. Cat. 



Rec. Shells, i., p. 94, 1817; Wood, Gen. Conch., p. 185, 1815; Pulteney, Dorset Cat., 



p. 29; Montagu, Test. Brit., i., p. 64, 1803. 



Tellina remies Born, Mus. Test. Vind., p. 36, pi. 2, fig. n, 1780; not of Linne, 1768. 

 Tellina larvis Wood, Gen. Conch., p. 181, pi. 37, fig. i, 1815. 



A single young valve, agreeing perfectly with the young of the recent shell 

 now inhabiting the same region, was found in the Pliocene marl of the Caloosa- 

 hatchie. This species was originally described as British from adventitious 

 specimens, but is an inhabitant of south Florida and the Antilles. 



Tellina (Moerella) suberis n. sp. 



PLATE 46, FIGURE 25. 



Pliocene of the Caloosahatchie marls. 



Shell small, solid, inflated, polished, very inequilateral, produced and 

 rounded in front ; short, distinctly folded, and slightly flexed behind ; beaks 

 small, high, with a deeply impressed lunule in front of them ; hinge normal, 

 teeth strong: surface mostly smooth or showing faint incremental lines, but 

 towards the basal margin and on the posterior dorsal area exhibiting a few 



