﻿350 CROSSOPTERYGT I . 



1890. Strepsodus saiiroides, Woodward & Sherborn, Cat. Brit. Foss. 



Vertebrata, p. 189. 

 1890. Strepsodus saiiroides, J. Ward, Trans. N. Staffs. Inst. Mining 



Engin. vol. x. p. 160, pi. ii. tigs. 5, 25. 



Type. Tooth ; E. W. Binney CoUection. 



The type species. Teeth relatively 1 ong and slender, somewhat 

 laterally compressed, often sigrnoidally bent at the apex ; inner face 

 covered with prominent, thread-like, well-spaced striae almost to the 

 apex ; basal folds very short. Jaw externally ornamented with fine 

 tuberculations. 



Form, fy Log. Coal-Measures : English, Scottish, and Irish Coal- 

 fields. 



P. 364. Three slabs of shale showing fragments of jaws and other 

 head-bones associated with vertebrae and scales ; Black- 

 band, Airdrie, Lanarkshire. Purchased, 1881. 



37323, 41999. Two fragments of mandible with imperfect teeth j 

 Airdrie. Purchased, 1863, 1870. 



P. 2287. Associated fragments of jaws; Carluke. 



Presented by George Griffiths, Esq., 1882. 



Kg. 51. 



Strepsodus sauroides (Binney). — Tooth, natural size. Coal-Measures, England. 



49119. Fragments of mandible showing one of the large teeth, and 

 traces either of tubercular ornament, or a rugose surface 

 left by the removal of superficial ganoine ; Scotland. 



Purchased, 1878. 



21227, 21423. Twelve teeth, and small group of tooth-fragments ; 

 Carluke. Purchased, 1847. 



37957. Large robust tooth ; Airdrie. Purchased, 1863. 



