72 



of the gills. The modified fifth branchial arch, forming the upper and lower pharyngeal 

 jaws, has its inner surface covered with fine villiform teeth. 



Presented by George Bennett, Esq., F.L.S. 



Family Blenniidee. 



300. The skeleton of a Wolf-fish (Anarrhicas Lupus). 



The occipital region is smooth and convex ; a very small occipital spine is developed from 

 its upper part. The supratemporal scale-bone presents the form of a mucous tube, and the 

 mucous canal perforates the ridge which divides the occipital from the lateral surfaces of the 

 cranium. The lateral surfaces are smooth, excavated, and almost meet upon the parietal 

 region of the cranium, forming a surface analogous to that for the attachment of the great 

 temporal muscles in the Wolf and other carnivorous quadrupeds. The suborbital bones are 

 well-ossified, and are perforated by mucous ducts. The stylohyal is attached to the fibro- 

 cartilage uniting the epitympanic to the mesotympanic. The parapophyses progressively 

 increase in length as the vertebrse recede from the head, then bend down, and unite below 

 the twenty-fifth vertebra. The short pleurapophyses are attached to the back part of their 

 extremities, and the epipleural spines are sent off near the place of their attachment, and from 

 the parapophyses themselves at the back part of the abdomen. The carpal bones are of 

 unusual breadth. 



Mm. South. 



301. The skull, wanting the hyoid and scapular arches, and with the first four 



abdominal vertebrae attached, of the Wolf-fish (Anarrhicas Lupus). 



In this skull may be remarked the extraordinary downward development of the basipre- 

 sphenoid and the expansion of the vomer, which is beset with large crushing teeth. The 

 premaxillary and anterior mandibular teeth are long, strong, pointed and divergent, adapted 

 to grapple with hard shells or crustaceous animals, which the posterior mandibular, the pala- 

 tine and vomerine teeth are adapted to crush. The suborbital scale-bones are thick, strong, 

 well-ossified, and completely circumscribe the orbital cavities. 



Hunterian. 



302. The skull, wanting the hyoid and scapular arches, of a Wolf-fish (Anarrhicas 



Lupus). Portions of the premaxillary and mandibular bones have been re- 

 moved from the bases of the teeth, showing the absence of cavities and teeth 

 of reserve in the substance of those bones. Presented by Prof. Owen, F.R.8. 



303. The skull and some of the anterior vertebras of the Wolf-fish (Anarrhicas Lupus), 



longitudinally and vertically bisected ; showing the short and wide infundibu- 

 lifonn basicranial cavity, and the coarse cellular structure of the strong and 



