380 CLASS XVI. 



spots. Another, larger species, common in Greenland, is unable to fly ; 

 Aka impennis L., BUFFON PL enl. 367, NAUM. Taf. 337. 



The French writers, following BUFFON, commonly give the name of 

 penguins only to the birds of this and the following genus, although by 

 voyagers the preceding genera of birds of the southern hemisphere are 

 thus named. Most of the species of this entire division are coloured white 

 on the belly, black on the back, with a small white stripe on the wings, 

 formed by the tips of the secondary flag-feathers. 



Mormon ILLIG., TEMM., Prater cula BRISS., GRAY, Lunda PALL., 

 NAUM. Bill shorter than head, equal to forehead in height, with 

 base higher than long, compressed, two-edged. Nostrils denuded, 

 narrow, linear, placed at the lower margin of upper mandible. 



Sp. Mormon fratercula TEMM., Aka arctica L., BUFF. PL enl. 275, Cov. R. 

 Ani., d. ill., Ois. PI. 89, fig. i, NAUMANN Taf. 335 ; the parrot-diver; 

 in the seas of the northern regions of both hemispheres, rare on our coasts. 

 This bird lays only a single egg, of a dirty white, and larger than a duck's 

 egg. Mormon cirrata, Alca cirrata PALL. Spic. Zool. V. Tab. I. BUFF. PL 

 enl. 761, Kamschatka, &c. 



CeratorJiyncha BONAP., GRAY (Cerorkina previously BONAP., 

 Chimerina EsCHSCH.). Bill compressed, curved. Small com- 

 pressed horn above the nostrils at the base of bill. Nostrils not 

 covered by plumules. 



Sp. CeratorJiyncha occidentalis BONAP., Chimerina comuta ESCHSCHOLTZ Zool. 

 AH. Tab. 12 (the head fig. by GRAY Genera, PI. 174, fig. 2); on the west 

 coast of N. America. 



Phaleris TEMM. Bill short, small, compressed towards the tip. 

 Nostrils not covered by plumules. Tarsi reticulate. 



Sp. Phaleris cristatella GRAY, Tylorhamphus cristatettus BR., A lea cristatetta 

 PALL. Spic. Zool. V. Tab. 8; from Kamschatka and the islands along the 

 west coast of the north of America; Phaleris camschatica BRANDT, 

 Phaleris cristatella TEMM. PL col. 200, &c. 



Note. Here belong sub-genera Ombria ESCHSCH., BR., Tylorhamphw 

 BR. and Ptychorhamphus BR. Comp. J. F. BRANDT Mem. de CAcad. 

 imp&r. des Sc. de P&tersbourg, 6ieme SeVie, Sc. natur. Tom. in. 



Mergulus RAY, YIEILL., BRANDT, Artica MOEHR., GRAY, Cephm 

 Cuv. Bill short, conical, arched. Nostrils basal, placed in a 

 membranous groove. Tarsi with an anterior row of transverse 

 scutella, not resting on their lower surface. 



