TELEOSTEI. 91 



THYNNUS THYNNUS, LINNJEUS. 



(Tunny.) 

 PLATE IX., FIG. 8. 



Early in the year 1890 Mr. A. Savin forwarded to me a large 

 teleosteau fish- vertebra, which he had discovered in the Forest- 

 bed at East Runton, and this has enabled us to add another genus 

 to the fauna of that horizon and another species to the British 

 Pliocene (Geol. Mag. Dec. 3, Vol. vii., p. 264). 



The processes of this vertebra have been broken off, but the 

 centrum measures 43 mm. long, 53 mm. wide, and 45 mm. high ; 

 it is deeply biconcave, and somewhat depressed ; it is further 

 characterised by a single, large, longitudinal bar on each side, 

 which thickens anteriorly and posteriorly, with a roughened space 

 towards the front, which indicates the point of attachment of the 

 rib. Above and below the bar is a deep fossa. In the upper 

 fossa, just below the margin from which the neural arch has 

 been broken away, there are two small foramina, the hinder 

 one being much less than the front one. This vertebra, although 

 a little smaller, agrees so exactly in its proportions with the 

 nineteenth vertebra of the large Tunny ( T. thynnus, about 8J 

 feet long) from the Firth of Forth, preserved in the Osteological 

 Collection of the Royal College of Surgeons, that I have no 

 hesitation in referring it to the same species. 



The occurrence of a large Tunny (T. scaldiensis) in the 

 Antwerp Crag and in the Coralline Crag of this country suggests 

 the possibility of the Forest-bed specimen belonging to the same 

 species ; but after careful comparison, due regard being paid to 

 the relative proportions of length to width, I find that the Forest- 

 bed example agrees with the recent T. thynnus, and not with the 

 Antwerp form. 



The Tunny at the present day is abundant in the Mediterranean, 

 and is occasionally met with as far north as the coasts of Scotland. 



Genus ANARRHICHAS, Linnaeus. 

 ANARRHICHAS LUPUS, LINXJEUS. 



(Wolf Fish.) 

 PLATE X., FIGS. 4a, b. 



The conical and flattened teeth which are above referred to 

 Chrysophrys have sometimes been thought to belong to Anarrhichas 

 lupus ; but 1 have been unable to h'nd any specimen from the 

 Pliocene which could be referred to this genus except one recently 

 obtained by Mr. Clement Reid, with a number of other small 

 fossils, from the Coralline Crag of Gedgrave. This specimen is a 

 curved conical tooth about the fourth of an inch long, with the 

 lower part deeply striated, and its base showing the peculiar 



