1891.] ON BRITISH REMAINS OF HOMCEOSAURUS. 167 



mottled with greenish buff ; beneath, the throat and breast grey, 

 the tips of the feathers brown ; belly greenish buff, shading off into 

 white on the under tail-coverts ; wing-quills and tail black, the 

 former edged outwardly with a narrow line of white ; wing-coverts 

 and secondaries black, edged with brown-pink; irides dark hazel; 

 bill and feet horn-colour. 



Dimensions. Total length 5'20 inches, wing 3*10, tail 2*20, 

 culmen "5.5, tarsus 1"5. 



Hab. Maui. 



5. On British Remains of Homceosaurus, with Remarks 

 on the Classification of the Rhynchocephalia. By 



G. A. BoULENGER. 



[Received February 3, 1891.] 



The specimen which I have the pleasure of exhibiting before the 

 Society is the greater portion of the left ramus of a mandible which 



Fig. 1. 



Left mandibular ramus of HomceosMirus major (specimen in the College of 

 Surgeons) and H. maximiliani (after v. Ammon). Natural size. 



agrees,except in the larger size, with that o^ Homceosaurus maximiliani, 

 H. V. Mey.S an Upper Jurassic Khynchocephalian Reptile, remains 

 of about half a dozen individuals of which are known from Bavaria. 

 The chief interest of this specimen lies in its being believed to be 



^ H. V. Meyer, Jabrb. Miner. 1847, p. 182, and Faun. d. Vorwelt, Eept. 

 Lithogr. Schief. p. 101, pi. xi. (I860). 



L. V. Ammon, Abb. bayer. Akad. xt. p. 499, 2 pis. (1885). 



