[21] Genus _Coluber_.--C. _testaceus_, SAY.--Pale sanguineous, or testaceous above, beneath sanguineous immaculate. Pl. 198. Sc. 80?
This is a large species equal in size to the C. _constrictor_. It moves with great rapidity, and in general form and size it resembles C. _constrictor_. The scales are large. A specimen is in the Philadelphia Museum.--JAMES.
[22] _Emberiza amoena_, SAY.--_Head_ and _neck_ bluish green; _back_ brownish black more or less intermixed with blue and a little brown ferruginous; _rump_ pure blue; _smaller wing coverts_ dull blue, brown at base, and tipped with white, forming a band; _greater wing coverts_ blackish, tipped with white, forming a narrow band; _wing_ and _tail feathers_ blackish-brown with blue exterior margins; _belly_, _inferior tail coverts_ and _lower part of the breast_ white; _superior portion of the breast_ pale ferruginous; _neck_ bright green; _bill_ and _feet_ pale.--JAMES.
[23] Genus _Crotalus_, LIN.--C. _confluentus_, SAY.--Brownish, varied with greenish-yellow, a triple series of brown spots, the anterior vertebral ones confluent, and the posterior ones separated into bands.
_Body_ brownish cinereous, varied with greenish yellow; a triple series of fuscous spots; dorsal series consisting of about forty-four large transversely oblong oval spots, each widely emarginate before and behind, and, excepting the posterior ones, edged with greenish-white, the ten or twelve anterior ones, crowded and confluent, those of the thicker part of the body separate, those near the cloaca and upon the tail united with the spots of the lateral series, and forming bands; lateral series, spots rounded, opposite to those of the back; between the dorsal and lateral series is a series of obsolete, fuliginous spots, alternating with those of the two other series; _head_ above scaly, scales of the superior orbits, and of the anterior margin, larger and striated; _beneath_ yellowish-white, immaculate. Plates of the body 179; of the tail 27.--JAMES.
[24] Louis Augustin Guillaume Bosc (1759-1828) visited the United States in 1796; later he taught at the Versailles Zoölogical Garden. It is uncertain as to which particular work is here referred to.
François Marie Daudin, whose specialty was reptiles, wrote _Histoire naturelle, générale et particulière des Reptiles_ (Paris, 1802-04), which is probably the work cited.--ED.