5 LiGNiTic Stage 5 



CADULUS. 



Cadulus abruptus, PI. i, fig- 3 



Syn. C. abruplu^i Aid. & M., Jr. Cinn. Soc. Nat. Hist., vol. 9, p. 104, 

 pi. 2, fig. 2, 1SS6. 

 C. subcoanlatus Aid., partiiii. Bull. Am. Pal., vol. 1, p. 56, 

 pi. 2, fig. 2, 4? 



Aldrich and Meyer' s original description. — "Rather large, some- 

 what depressed. Inflation very near to the large aperture and 

 suddenly decreasing. Newton, Wautubbee. 



"The type specimen is from Newton. Form and position of 

 the inflation distinguish it from other species of Cadulus of the 

 southern Tertiary." Dall regards this the same as Gabb's Ditrupa 

 subcoarcuata from Texas, an older name than abruptus. Aldrich 

 has accepted that view, {^loc. cit.) though from what he says it 

 seems that he may be mistaken as to the identification of sub- 

 coarcuatus. While studying over the large amount of Eocene 

 material of the Texan State survey we were led to consider the 

 two species distindl. Dall very properly notes that the species "is 

 notable for having the smaller end lightly longitudinally striated 

 in most specimens. ' ' This is especially true of the Woods bluff 

 forms, but was not observed by the writer in his Texas lower 

 Claiborne specimens, nor on a good specimen from Gregg's land- 

 ing. 



Ligjiitic localities. — Ala. : Woods bluff, Gregg's landing; 4 miles 

 above Hamilton bluff on the Alabama. From 

 the last locality the specimen are exceedingly 

 small and slender, i ^ mi. W. S. W. of Choc- 

 taw Corner, Ala. 

 Type. — Aldrich's colledlion. 



Specimen figured. — Woods bluff; Paleont. Musuem, Cornell 

 University. 



GASTROPODA. 



ACTytON. 



Actseon idoneus, PI. i, fig. 4- 



Syn. A. idoneus Con., Foss. Sh. Tert. Form., pt. 4, p. 45, Nov., 1833. 



A. lineatus Lea, Cont. to Geol., p. 112,. pi. 4, fig. 97, Dec, 1833. 

 A.punnatiis Aid., Geol., Surv. Ala., Bull i, p. 53, 18S6. 



Conrad's original flf^.?r?7)^//^ ;/.--- "Narrow-elliptical, with nar- 



