. The fauna of British India, including Ceylon and Burma . t they are merely races of the Australian Jungle-Crow, and must therefore be known specifically by the namecoronoides, though they form several well-defined subspecies. Kej/ to Suhsp/cies. A. Wing about oO-t mm., bill about (10 mm. C. c. levaillanti, p. 27. Ft. Wing about 2!)0nim., bill about .56111111. C. c. cidminatus, p. Wing about .380111111. n. Bill about 60 mm., more slender C. c. intennedws, p. 28. h. Bill about 65 mm., more massive .... C. c. andamanensig, p. 29. 26 CORTIMH. A feature wliicli is also of some use in distii
. The fauna of British India, including Ceylon and Burma . t they are merely races of the Australian Jungle-Crow, and must therefore be known specifically by the namecoronoides, though they form several well-defined subspecies. Kej/ to Suhsp/cies. A. Wing about oO-t mm., bill about (10 mm. C. c. levaillanti, p. 27. Ft. Wing about 2!)0nim., bill about .56111111. C. c. cidminatus, p. Wing about .380111111. n. Bill about 60 mm., more slender C. c. intennedws, p. 28. h. Bill about 65 mm., more massive .... C. c. andamanensig, p. 29. 26 CORTIMH. A feature wliicli is also of some use in distiiiguisliing gco-grapliical races is the colour of the bases of the feathers. Insouthern birds these are nearly always very dark, in Central Indianbiids they vary a great deal from pale dirty white to dark, whilstin the northern mountain birds when fully adult they aregenerally pale and often pure white. Andaman birds seemiuvai-iably to have the bases to their feathers a very pure white,and differ in this respect from, their nearest allies in Assam and. Fig. 4.—Head of C. roronoidcs.
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Keywords: ., bookauthoroateseug, bookcentury1900, bookdecade1920, bookyear1922
