Of this group the most striking one perhaps is N, bicolor, which has the perianth almost white and the corona deep yellow; it yields a number of varieties, some of the best known being Empress, Horsfieldi, Grandee, Ellen Willmott, Victoria, Weardale Perfection, &c. N.
The pythons (q.v.) are restricted to the palaeotropical and Australian regions, with the sole exception of Loxocemus bicolor in southern Mexico.
One species which is extremely common (Pelamis bicolor), and which is easily recognized by the black colour of its upper and the yellowish tints of its lower parts (both colours being sharply defined), has extended its range W.
The animal is ` brown,' of a shade from orange or tawny to quite blackish; the tail and feet are ordinarily the darkest, the head lightest, often quite whitish; the ears usually have a whitish rim, while on the throat there is usually a large tawny-yellowish or orange-brown patch, from the chin to the fore legs, sometimes entire, sometimes broken into a number of smaller, irregular blotches, sometimes wanting, sometimes prolonged on the whole under surface, when the animal is bicolor like a stoat in summer.
Minutus of West Africa, to others as large as a cat, such as the black and yellow Ratufa bicolor of Burma and the Malay area.
Bicolor, much valued in India as a forage-plant, and S.
Similarly, when white Emily Henderson (long pollen grains) is crossed with white Emily Henderson (round pollen grains), the offspring wholly consists of the reversionary purple type, and sometimes wholly of a red bicolor form known as "Painted Lady."
Calliopsis or Coreopsis bicolor (tinctoria) : hardy, 2 to 3 ft., yellow and chestnut-brown.
Collinsia bicolor: hardy, r i ft., white and purple; pretty.
Ducks and geese frequent it in the spring and fall, the white-bellied swallows (Hirundo bicolor) skim over it, and the peetweets (Totanus macularius) "teeter" along its stony shores all summer.