Geological Society. 381 



The most important article in the book is the concluding one, by 

 the Editor, Mr. J, G. Goodchild, and is on " Ice-work in Edenside 

 and some of the adjoining joarts of North-western England," in 

 which the author brings together the results of his investigations 

 upon the glacial phenomena of the region in question. Some of 

 these results have already been indicated by Mr. Goodchild in papers 

 published in the * Quarterly Journal of the Geological Society' and 

 elsewhere ; but ho has done good service by summarizing his obser- 

 vations upon such an interesting district in this convenient form. 



PROCEEDINGS OF LEARNED SOCIETIES. 



GEOLOGICAL SOCIETY. 



Eebruary 8, 1888.— Prof. J. W. Judd, F.R.S., 

 President, in the Chair. 



The following communications were read : — 



1. " On some Remains of Squatina Cranei, sp. nov., and the 

 Mandible of Bdonostomtis cinctus, from the Chalk of Sussex, pre- 

 served in the Collection of Henry Willett, Esq., E.G.S., Brighton 

 Museum." By A. Smith Woodward, Esq., F.G.S. 



The remains referable to Squatina consist of a crushed skull, with 

 the mandibular and hyoid arches, and an associated fragment of the 

 pectoral fin with dermal tubercles. The tish was probably about 30 

 inches long. There are some difficulties in the way of interpretation, 

 but the form and relative proportions of the cranium, &c., appear to 

 be similar to those of the living representative of the genus. The 

 dentition is not completely preserved ; the teeth near the symphysis 

 of the mandible are relatively high and slender, while the oj)posing 

 teeth are small. The great relative size of the spinous dermal 

 tubercles serves to distinguish it from species of Squatina already 

 known. The anterior lower teeth are also more slender than in 

 the existing S. angelus. 



No specimen of Belonostoinus has hitherto revealed the precise 

 characters of the dentition or the relations of the bones. This 

 deficiency is now supplied. The two rami occupy only one half 

 the entire length of the jaw, the anterior half being formed by the 

 elongated presymphysial bone, which is provided with a powerful 

 prehensile dentition. The character of the teeth was described by 

 the Author : the large median teeth end abruptly at the posterior 

 extremity of the presymphysial element, but the small lateral teeth 

 are continued backwards upon the rami of the jaw, increasing in size 

 and becoming relatively shorter. Further details were given, and 



An7i. cb Mag. N. Hist. Ser. 6. Vol i. 2Q 



