239 LiGxiTic Stage 47 



Modiola alabamensis, PI. 7, fig. 9. 



Syn. M. alabaineitsis Aid., Bull. Amer. Paleont., vol. i, p. 68, pi. 6, 

 fig- 13- 

 Aldrich' s original description. — Op. cit. 



The original specimen shows no radiate marking beneath a 

 line drawn from the umbo to the posterior basal margin, ex- 

 cept at the extreme anterior. Our specimen, a right valve shows 

 not onl}^ the markings of the type but also fine radii where 

 the latter is smooth. 



Localities. — Alabama : Woods Bluff ; Choctaw Corner. 



Type. — Choctaw Corner ; Aldrich's collection. 



Specimen figured. — Woods Bluff ; Paleont. Museum, Cornell 

 University. 

 Area hatchetigbeensis, n. sp. PI. 7, fig. 10, a. 



Syn. Area subprotracta Aid.. Bull. i. Geol. Surv. Ala., p. 50, 18S6. 



Specific characierization .S\ze and general form as indicated 

 by the figure ; surface covered by well defined but somewhat ir- 

 regular imbricate concentric lines, crossed by raised radiating fine 

 costse ; young shell not extremeh^ elongate, with surface marking 

 of equal strength everywhere ; in adults the medial sinus be- 

 comes more pronounced, the radiating ribs before the sinus being 

 stronger than those behind the same, and the shell is more or less 

 distorted. 



This species differs from protracta Con. — subprotractra Heilp. 

 by its much less elongate form, broader anterior, the presence of 

 two particularh' strong costae located medialh- on the post-um- 

 bonal slope. B3- examining the type s^&:ivax&i\ oi A . protractra 

 in the Academ3''s colledlion at Philadelphia, it will be seen 

 that it agrees somewhat more nearh' with this species than 

 would be supposed from Conrad's figure, yet the agreement can 

 scarcely constitute specific identity. 



Locality ( Lignitic ). — x\labama : Hatchetigbee. 



Type. — Hatchetigbee ; Paleont. Museum, Cornell University. 



Barbatia cuculloides, var. PI. 8, fig. i, a. 



Syn. Area cuculloides Con., Foss. Shells, Tert. Form, p. 37, 1SS3. 

 Area lima var. Aid., Bull, i, Geol. Surv. Ala., p. 57, 18S6. 

 Area sp. Harris, Bull. Amer. Paleont., vol. i, p. 164, pi. 13, figs. 

 8, 6, 9, a., 1896. 



