92 PISCES. 



labyrinthoid structure seen in the teeth of the Wolf-fish ; indeed 

 the form and structure of this tooth agrees so closely with one of 

 the premaxillary teeth of A. lupus, that there can be little doubt 

 as to its belonging to the same species. 



Some of the teeth of the Angler-fish, Lophius piscatorius have 

 a somewhat similar labyrinthoid plaiting at the base ; but the teeth 

 are proportionately longer and more hollow, with one side flattened 

 for the hinge-like attachment to the jaw, and at this side the 

 plaiting is absent ; whilst in the fossil tooth the folding is con- 

 tinued all round. This unique specimen of Anarrhichas lupus, 

 from the Coralline Crag of Gedgrave, has been presented by 

 Mr. C. Reid to the Museum of Practical Geology. 



The Wolf-fish is common in the German Ocean, still more abun- 

 dant northwards, and less so southwards. 



Genus LABRUS, Linnaeus. 



Among the remains from the Nodule-bed of the Eed Crag of 

 Suffolk, preserved in the British Museum, there is a specimen 

 of the united pharyngeal bones of a labroid fish (No. p. 5565) 

 which Mr. Smith Woodward has referred to the genus Lcibrus. 

 (Cat. Brit. Foss. Vert., p. 108, 1890.) Possibly some of the teeth 

 which have been thought to belong to Chrysophrys would be more 

 correctly included here. 



Genus PHYLLODUS, Agassiz. 



There are in the British Museum a number of specimens from 

 the Suffolk Red Crag Nodule-bed belonging to this genus, which 

 are referred to the following species : P. speciosus, liexagonus, and 

 toliapicus. These are essentially London Clay forms, and it is 

 highly probable that they have been derived from that horizon. 

 Similar specimens are preserved in the Ipswich Museum and in 

 the Museum of Practical Geology. 



Genus PLEUBONECTES, Artedi. 



Under the synonym of Platessa, a maxilla from the Forest- 

 bed of Overstrand, near Cromer, was described in the Survey 

 Memoir (Vert. Forest Bed, p. 128, 1882). There can be no 

 question us to the generic affinities of this specimen, and it is very 

 near to, if not identical with the common Plaice. 



