26i IviGNiTic Stage 69 



Localities. — Alabama : Yellow Bluff ; 4 miles above Hamilton 

 Bluff ; Hatchetigbee Bluff. 



Type. — Academy Natural Sciences, Philadelphia. 



Pholas alatoidea, PI. 13. fig. 15. 



Syn. Pholas roperiana Tuomey, 2d Biennial Rep't, 272, 1858. 



Pholas alatoidea Aid., Bull, i, Geol. Surv. Ala., p. 36, pi. 4, figs. 

 9, b, c, 1886. 



Aldrich' s original descriptioji. — "Shell elongate, cylindrical, 

 posterior end concentrically striated, anterior half of the shell 

 crossed with raised radial lines forming imbrications, which grow 

 stronger as we approach this end. Anterior dorsal margin wing- 

 ed, this part showing only the continued concentric lines; umbon- 

 al processes large, reflected; anterior ventral margin strongly 

 notched. Internal process broad, spatulate. 



'^Localities. — Gregg's Landing and Bell's Landing, Ala." 

 Type. — Aldrich's colledtion. 



Specimen figured. — Gregg's Landing ; Paleont. Museum, Cor- 

 nell University. 



Glycymeris alabama, n. sp. PI. 13 fig. 16. 



Syn. Panopcea sp. Aid., Bull, i, Geol. Surv. Ala., p. 58, 1886. 



Panopcea porrectoides var? Har., Proc. Acad. Nat. Sci., Phila., 1896, 

 p. 478, pi. 22, fig. 4. 



Specific chara5lerization. — General form of a well preserved 

 specimen as indicated by the figure ; less developed anteriorly 

 than porrectoides ; a slight or strong median constriction from 

 umbo to base, causing oftentimes an indentation in the basal 

 margin ; of a far more slender form, smaller size, and less sym- 

 metrical laterally than elongata Con. 



Localities. — Alabama: Gregg's Landing. Georgia: Ft. Gaines, 

 near base of Lignitic. 



Type.—h^a. Memorial ColleAion in Acad. Nat. Sci., Phila. 

 Specimen figured. — Lea Memorial Colle(5lion in Acad. Nat. 

 Sci. , Phila. 



Martesia elongata, PI. 14, fig. i. 



Syn. M. elongata Aid., Bull, i, Geol. Surv. Ala., p. 37, pi. 4, fig. 

 10, 1886. 



