SYNOPSIS. XXXV. 



lateral, oblong-oval, pervious, placed towards the middle of 

 the bill: legs short, placed rather backwards; hind toe with 

 a lobated membrane: wings moderate; first and second 

 quills nearly equal. 



M. Merganser, Linn. - - v. 2, p. 349-352 



M. Serrator, Linn. v. 2, p. 354 



M. cucullatus, Linn. 



M. albellus, Linn. - v. 2, p. 356-358 



Gen. 88. CARBO. Bill generally a little longer than 

 the head, straight, compressed, culmen rounded; upper 

 mandible very much hooked at the point; face and throat 

 naked: nostrils basal, linear, concealed: tarsi strong and 

 short, placed far backwards: toes four, united by a mem- 

 brane; claw of the middle toe serrated on the inner edge: 

 wings moderate; second quill longest: tail feathers stiff and 

 rigid. 



C. Cormoranus, Meyer. v. 2, p. 360-363-368 



C. cristatus, Temm. v. 2, p. 369 



Gen. 8g. SULA. Bill long, robust, forming an elon- 

 gated cone thick at the base, compressed towards the tip, 

 which is slightly curved; gape extending beyond the eyes; 

 edges of the mandibles serrated; face and throat naked: 

 nostrils basal, linear, concealed: tarsi short and strong, placed 

 far backwards; toes four, united by a membrane; middle 

 claw with the inner edge denticulated: wings long; first quill 

 longest, or equal to the second; tail cuneiform, composed of 

 twelve feathers. 



S. Bassana, Sriss. v. 2, p. 372 



Gen. 90. COLYMBUS. Bill as long as the head, 

 strong, straight, slightly compressed, sharp-pointed; upper 

 mandible longer than the lower; edges of both curving in- 

 wards: nostrils basal, lateral, linear, and partly closed by a 

 membrane: tarsi much compressed, placed very far back- 

 wards; three toes in front, very long; hind toe short, lobated; 

 claws depressed: wings short; first quill longest: tail very 

 short, rounded. 



C. glacialis, Linn. v. 2, p. 379 



