Archive image from page 364 of The descent of man . The descent of man : and selection in relation to sex descentofmanseledarw Year: 1874 Fig. 33. Sitana minor. Male with the g'ular pouch expanded (from Gunther's 'Reptiles of India'). Fig-. 34. Ceratophora Stod- dartii. Upper figure, male; lower figxire, fe- male. as the head. It is cylindrical, covered with scales, flexible, and apparently capable of erection: in the female it is quite rudimen- tal. In a second species of the same genus a terminal scale forms a minute horn on the summit of the flexible appendage-, and in a third species (C.
Archive image from page 364 of The descent of man . The descent of man : and selection in relation to sex descentofmanseledarw Year: 1874 Fig. 33. Sitana minor. Male with the g'ular pouch expanded (from Gunther's 'Reptiles of India'). Fig-. 34. Ceratophora Stod- dartii. Upper figure, male; lower figxire, fe- male. as the head. It is cylindrical, covered with scales, flexible, and apparently capable of erection: in the female it is quite rudimen- tal. In a second species of the same genus a terminal scale forms a minute horn on the summit of the flexible appendage-, and in a third species (C. Stoddartii, fig. 34) the whole appendage is con- verted into a horn, which is usually of a white color, but assumes a purplish tint when the animal is excited. In the adult male of this latter species the horn is half an inch in length, but it is of quite minute size in the female and in the young. These appen- dages, as Dr. Gtinther has remarked to me, may be compared with the combs of gallinaceous birds, and apparently serve as orna- ments. «7 All the foregoing statements and quotations, in regard to Cophotis, Sitana and Draco, as well as the following facts in regard to Cerato- phora and Chamaeleon, are from Dr. Gunther himself, or from his magnificent work on the 'Reptiles of British India,' Ray See. 1864, pp. 122, 130, 135. «s Mr. Swinhoe, 'Proc. Zoolog. Soc' 1870, p. 240.
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