﻿348 CROSSOPTETtYGTJ. 



35663. Group of scales ; Burdiehouse. Bean Coll. 



36914. Scale, inner aspect, shown, of the natural size, in PI. XII. 

 fig. 9 ; Burdiehouse. Purchased, 1863. 



P. 721. Three detached scales, and small group of three, all inner 

 aspect ; Burdiehouse. Egerton Coll. 



P. 3323. Group of scales, inner aspect; Burdiehouse. 



Ennislcillen Coll. 



The teeth and portions of jaws in the Museum of Columbia 

 College, New York, described under the following names, are 

 probably all Labyrinthodont : — 



Bhizodus angustus, J. S. Newberry, Proc. Acad. Nat. Sci. Philad. 

 vol. viii. (1856), p. 99, and Bep. Geol. Surv. Ohio, vol. i. 

 pt. ii. (1873), p. 342, pi. xxxix. fig. 6. — Coal-Measures ; 

 Linton, Ohio. 



Bhizodus incurvus, J. S. Newberry, ibid. 1856, p. 99. — Coal- 

 Measures ; Linton, Ohio. 



Bhizodus lancifer, J. S. Newberry, ibid. 1856, p. 99, and ibid. 

 1873, p. 342, pi. xxxix. fig. 9. — Coal-Measures ; Linton, 

 Ohio. [Very similar teeth from the Coal-Measures of 

 Northumberland are also noticed (under the name of JR. 

 lanceiformis) by Hancock and Atthey, Ann. Mag. Nat. Hist. 

 [4] vol. i. (1868), p. 271. These are determined to 

 be Pteroplaoc both by the last-mentioned authors and by 

 J. Young, Bep. Brit. Assoc. 1869, Trans. Sect. p. 101.] 



Mioganodus laniarius, R. Owen (Trans. Odontol. Soc. vol. v. 

 1867, p. 357, pi. viii.), from the Coal-Measures of Northumberland, 

 also sometimes referred to Bhizodus, is founded upon a micro- 

 scopical section of a tooth, probably of the Labyrinthodont Loocomma. 

 The type specimen is in the Collection. (P. 6244. Presented by 

 Sir Bichard Owen, K.C.B., 1890.) 



A scale of uncertain genus, but probably of Strepsodus, from the 

 Coal-Measures of Hlinois, is named Bhizodus occidentalis, Newberry 

 & Worthen, Pal. Illinois, vol. ii. (1866), p. 19, woodc. fig. 2. 



Genus STREPSODUS, Young. 

 [Quart. Journ. Geol. Soc. vol. xxii. 1866, p. 602. J 



Syn. Dendroptychius, J. Young {ex Huxley, MS.), Quart. Journ. Geol. 

 Soc. vol. xxii. 1866, p. 601. 



