4 Bulletin 2 ( 56 ) 



CADULUS. 



Since this paper was practically finished in 1889, Prof. W. H. 

 Dall in his monumental "Contributions to the Tertiary Fauna of 

 Florida" has g"iven a complete review of this genus rendering the 

 illustrations of this genus of little value. Cadulus subcpardaUis 

 Gabb no doubt should be united to C. abruptus Aid. & M*r. A 

 form from Gregg's Landing, Ala., differs from the type by being 

 much more slender. It is figured on Pkte i , figures i and 2 . 

 The sulci are two in number. Plate i, figure 4 represents a fo^m 

 with five sulci and notches to correspond ; it is from Wood's Bluff 

 Alabama. There are other differences, but our knowledge of the 

 limits of variation is not sufficient to warrant the erection of the.e 

 fo -ms into distinct species at present. Cadiihis juvenis Mej^er is 

 common in Texas from Mosl^y's Ferry, Burleson Co., and in Lee 

 County. It is tumid, with posterior end nearly circular ; anterior 

 strongly oval, and flattened on one side ; the cingulum is ove: one 

 third from the anterior. 



Singular to relate, no specimens of Caduhcs siibcoardatus Gabb, 

 have been found at Wheelock or elsewhere in Texas by several 

 collectors sent out by the writer while other species a^e rather 

 common. Cadulus compressus M'r is evidently intended for C. de- 

 pressus M'r from a perusal of Dr. Meyer's article.* 



The Eocene species now known are, viz. : — 



1. Cadulus turritus Lea, sp. 



Dentalium tufriturn Lea, Cont. to Geol., 1833. 



2. Cadtdus depressus M'r, Proc. Phila. Ac, 1884, p. iii. 



C. compressus Meyer. 



3. Cadulus stibcoardatus Gabb. 



Ditrupa s2ibcoarcuata Gabb, misprint. 



Ditrupa subcoardata Gabb, Jour. Phila. Acad., vol. 4, 2nd 



ser., p. 386, pi. 67, fig. 47, i860. 

 Gad2is subcoardatus Gabb, Conrad's List, 1866, p. 10. 

 Cadulus subcoardatus Gabb, Dall, Trans. Wag. Free Inst. 



Sci. , vol. 3, pt. 2, p. 444, Dec, 1892. 

 Cadulus abruphis M.'r & Aid., Jour. Cin. See Nat. Hist., 



p. 40, pi. 2, fig. 2, July, 1886. 



4. Cadulus newtonejisis W X ^ Aid., Jr. Cin. Soc. Nat. Hist., 



July, 1886. 

 C. jacksonerisis M'r, Amer. Jr. Sci., p. 462, 1885 ; Contri- 

 butions, p. 65, pi. 3, fig's 8, 8a, 8b. 



*Am. Jr. Sci., vol. 30, July, 1885. 



