EVENING GROSBEAK. 
221 
M. Lesson, under the name of Coccothraustes Bonapartii. The Prince of 
Musignano, it is observed, has erred in stating that “ no ditference of any 
consequence is observable between the sexes, though it might be said that 
the female is a little less in size, and rather duller in plumage.” 
Genus XVIII.— PYRANGA, Vieill SUMMER RED-BIRD. 
Bill of moderate length, robust, tapering, compressed toward the end, 
acute ; upper mandible with its dorsal line declinate and considerably 
convex, the ridge rather narrow, nasal sinus very short and wide, the sides 
convex, the edges sharp, slightly arched, with a festoon about the middle, 
the notches distinct, the tip very slender, declinate ; lower mandible strong, 
with the angle short and rounded, the dorsal line straight, the sides convex, 
the edges direct, the tip acute. Nostrils basal, round. Head ovate; neck 
short; body compact. Tarsus short, with seven scutella ; toes rather small, 
the first moderate, the outer slightly longer than the inner, and adherent 
at the base. Claws moderate, well arched, much compressed, laterally 
grooved, acute, those of the first and third toes equal. Plumage soft and 
blended; distinct bristles at the base of upper mandible. Wings rather 
long, with the second and third quills longest, the first little shorter. Tail 
of moderate length, emarginate. Upper mandible concave, with three lon- 
gitudinal ridges ; tongue somewhat triangular, convex above, with the point 
thin-edged and lacerated ; oesophagus dilated about the middle; stomach 
broadly elliptical, small, its lateral muscles rather small ; epithelium thin, 
longitudinally rugous ; intestine short ; coeca extremely small. Inferior 
laryngeal muscles four on each side, but very small. 
VOL. III. 
36 
