XYEANIID^l. 



169 



Ichthyerpetum bradleyse, Huxley *. 



Syn. Erpetocephalus rugosus, Huxley 2 . 



The type and only described species. Length of skull about 

 0,080 (3-15 inches). 

 Hah. Europe (Ireland). 



41851 g. Slab of shale showing the frontal aspect of the cranium 

 and the lateral aspects of the mandibular rami ; from the 

 Coal-Measures (Upper Carboniferous) of Jarrow Colliery, 

 Kilkenny. The contour of the cranium is fairly well 

 preserved, and agrees with that of the imperfect specimen 

 figured by Huxley in the ' Trans. Roy. Irish Academy/ 

 vol. xxiv. pi. xxxiii. fig. 2, as Erpetocephalus, showing 

 the same slight outward inclination of the extremities of 

 the epiotic cornua, and the concave posterior border of 

 the supraoccipitals. Compared with Nyrania (fig. 40) the 

 resemblance is so close as to leave no reasonable doubt of 

 the close alliance of the two forms. Purchased, 1870. 



41851 h. Slab showing the imperfect skull and a portion of the 

 vertebral column ; from Jarrow. The frontal aspect of 

 the posterior portion of the cranium is preserved, on the 

 right side of which is seen the hinder part of a mandibular 

 ramus. The supraoccipital and epiotic region corresponds 

 precisely with that of the preceding specimen, and the 

 position of the orbits is also similar. The vertebral 

 column agrees with the following examples. 



Purchased, 1870, 



41851 i. Slab of shale showing traces of the precaudal portion of 

 the skeleton; from Jarrow. The posterior half of the 

 cranium is very imperfectly preserved, with the loss of 

 nearly the whole of the sculpture. The left lateral 

 thoracic plate and the left pelvic limb are indistinctly 

 indicated ; but the vertebral column is badly preserved. 



Purchased, 1870, 



41851 j. Fragment of shale showing a portion of the vertebral 

 column, bent upon itself; from Jarrow. The vertebra) 

 agree with those of the type specimen figured by Huxley 



1 Tran9. Boy. Irish Academy, vol. xxiv. p. 367 (1867). 



Ibid. p. 368. 



