380 CLASS XVI. 



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

 Alca impennis L., Buffon PI. enl. 367, Naum. Taf. 337. 



The French wi-iters, 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., Fratercula 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., Alca arctica L., Buff. PL enl. 275, Cuv. R. 

 AnL, ed. ill., Ois. PI. 89, fig. i, Nadmann 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 cirrafa, Alca cirrata Pall. Spic. Zool. V. Tab. i. Buff. PI. 

 enl. 761, Kamschatka, &c. 



Ceratorliynclm BoNAP., Gray {Cerorhma 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., Cliinierina cornuta Eschscholtz Zool. 

 Ail. Tab. 12 (the head fig. by Gkat 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 Geat, Tylorhamphus cristatellus Br., Alca crisiatella 

 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. PI, col. 200, &c. 



Note. — Here belong sub-genera Ombria EscHSCH., Br., Ti/lorhantphus 

 Br. and Ptychorhamphus Br. — Comp. J, E, Brandt Mem. de I'Acad. 

 imper. des Sc. de Petersbourg, 6ifeme Sdrie, Sc. natur. Tom. in. 



Mergulus Ray, Vieill., Brandt, ^r^/ca Moehr., Gray, Cephis 

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

 membranous groove. Tarsi with an anterior row of transverse 

 scutelk, not resting on their lower surface. 



