TRANSACTIONS OF WAGNER 

 I0 34 



TERTIARY FAUNA OF FLORIDA 



cremental lines; hinge normal, teeth small, hinge-margin grooved in front 

 of and behind them ; pallial sinus rather shorter than usual and more arched 

 above; the internal ray feeble. Lon. 10, alt. 6.25, diam. 3 mm. 



This species approaches T. tenclla Verrill, but is less arcuate, blunter be- 

 hind, and with the sculpture less sharp, regular, and close. The left valve 

 is usually a little flatter than the right, and there is a notable difference in 

 individuals in the amount of arcuation, just as in T. tenella. 



Tellina (Angulus) macilenta n. sp. 

 PLATE 46, FIGURE 20. 



Miocene of the Natural Well, Duplin County, North Carolina. 



Shell solid, subtrigonal, moderately convex, equivalve ; inequilateral ; an- 

 terior end longer, rounded, posterior roundly pointed near the base; beaks 

 pointed, dorsal margins slightly arched ; surface polished, faintly distantly 

 concentrically striated ; near the basal margin the striae become regular and 

 more sharp and conspicuous; posterior dorsal area nearly smooth, posterior 

 end not folded, but slightly flexed ; hinge normal, adjacent lateral short, strong, 

 and prominent ; pallial sinus somewhat arched above, long, wholly confluent 

 below ; interior more or less radially striate ; in the left valve the thickened 

 rays inside the adductor scars are obvious. Lon. 16.5, alt. 10.5, diam. 5.5 mm. 



This form is not intimately related to any of the recent species, and is 

 easily discriminated by its solid, subtrigonal valves, size, and shortness from 

 any of the Miocene species. 



Tellina (Angulus) Sayi Deshayes. 

 Tellina polita Say, Journ. Acad. Nat. Sci. Phila., ii., p. 276, 1822 ; Am. Conch., pi. Ixv., fig. 



2, 1834; Hanley, Thes. Conch., i., p. 282, pi. 57, fig. 60, 1847; Philippi, Abb. und 



Beschr., ii.. p. 27, pi. 3, fig. 10, 1846. 

 Angulus polita (.sic) Holmes, P.-P!. Fos. S. Car., p. 45, pi. 8, fig. 2, 1858; H. and A. 



Adams, Gen. Rec. Moll., ii., p. 398, 1856. 

 Not Tellina polita Spengler, Nat. Selsk., iv., pt. 2. p. 107, No. 38, 1798; nor of Pulteney, 



Dorset Cat., p. 29, 1813 ; nor of Sowerby, Tankerville Cat., App., p. iv., 1825 ; nor of 



Poli, Risso, Blainville, etc., 1795-1825. 

 Tellina Sayi Desh., MS. 



Pliocene of the Caloosahatchie River, Florida, of South Carolina, of the 

 Croatan beds, North Carolina ; Dall and Johnson ; recent from North Caro- 

 lina to Yucatan. . 



The well-known name of this species must be changed, as it had been used 



