S YNTHLIBORHA MPHUSSIMORHYNCHUS 869 



In habits not differing from BracJiyrJiamphus. It breeds' in 

 holes in the ground, depositing in June 2 eggs, which are pale 

 yellowish white faintly dotted with pale slate and reddish 

 brown, and measure about 2*41 by T47. 



1200. JAPANESE AUK. 

 SYNTHLIBORHAMPHUS WUMIZUSUME. 



Synthliborkamphus wumizusume (Temm.), PI. Col. v. pi. 121 (1835) ; 

 (Seebohm), B. Jap. Emp. p. 277 ; Ogilvie Grant, Cat. B. Br. Mus. 

 xxvi. p. 598 ; Ridgway, p. 14 ; Tacz. F. 0. Sib. 0. p. 1215 ; 

 B. temmincM, G. R. Gray, Gen. of B. iii. p. 644 ; Elliot, B. N. Am 

 ii. pi. Ixxi. 



Umi-suzumi, Jap. 



g ad. (Japan). Middle of crown and nape, lower hind neck, and a 

 large frontal tuft, wings, and tail black ; chin, upper throat, and sides of 

 head blackish slate-grey ; upper parts slate-grey ; sides of crown and of 

 nape, and under parts white ; bill yellowish horn, blackish along the ridge 

 of the culmen and towards the base ; legs and feet as in S. antiquus ; iris 

 dark brown. Gape 1-25, wing 4'75, tail 1'4, tarsus 0'9. 



Hob. Coasts of Japan. 



In habits this species does not differ from its allies ; its eggs 

 are as yet unknown. 



SIMORHYNCHUS, Merrem, 1819. 



1201. CRESTED AUK. 

 SIMORHYNCHUS CRIST ATELLUS. 



Simorhynchus cristatellus (Pall.), Spic. Zool. fasc. 5, p. 20, pis. 3 and 5, 

 figs. 7-9 (1769) ; (Schrenck), Reis. Amur. L. i. p. 500, pi. xvi. 

 figs. 4, 5 (1859) ; Ogilvie Grant, Cat. B. Br. Mils. xxvi. p. 602 ; 

 (Seebohm), B. Jap. Emp. p. 285 ; Ridgway, p. 13 ; S. tetraculus 

 (Pall.), op. cit. p. 23, pis. iv. v. figs. 10-12 (1769). 



Eturop-umi-suzumi, Jap. 



$ ad. (Bering Island). Upper parts blackish tinged with slaty 

 brown ; under parts dull slate-grey ; wings and tail blackish ; on the fore- 

 head a large black recurved crest, and a white streak through and behind 

 the eye where these feathers are much elongated ; basal portion of both 

 mandibles bright orange, extremity light bluish horn ; inside of mouth 

 flesh-colour ; legs and feet bluish slate, the webs darker ; iris nearly white. 

 Culmen from feathers 0'5, wing 5'6, tail T65, tarsus 1*1 inch. 



3 L 2 



