作者： Federico Medem
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摘要: Additional studies on reproduction of the Spectacled Caiman (Caiman sclerops), two Side-neck Turtles (Podocnemis expansa, Podocnemis anifilis) and one Snake-neck Turtle (Phrynops geoffroanus tuberosus) have been carried out in Upper Caqueta its tributary, rio Caguan, which belong to Colombian Amazon Basin. Moreover, it had found, that Matamata (Chelus fimbriatus] belongs native faunistic elements Caqueta, was not introduced from other rivers or lower course, as formerly suspected. The main results are following: 1) sclerops. Eggs. Measurements: From 67.0 : 41.5 mm. 73.5 41.0 mm, Hatchlings. Total length: Between 239.5 255.5 Weight: 32 g, 250 mg. 47 g. 2) expansa. Originally but hatchlings course Putumayo 1940, 1943 1955; actually already reproducing. 44.5 36.5 48.5 45.5 34 350 44 300 Measurements (Carapace Length) 39.5 45.0 17 20 3) unifilis. 28.5 51.0 33.5 15 31 34.0 48.0 8 750 21 100 nests between 180 210 deep contain normally 14 27 eggs; first found 80 150 depth. 4) Light seems be factor for orientation find their way direction water; they develop a considerable speed, needing only 25 minutes cover distance 96 meters nest river shore; here do remain shallow water, rather dive immediately depth lakes, evidently seeking better protection against natural enemies, even fishes, muddy dark waters. 5) Phrynops tuberosus. 32.5 31.5 35.0 34.0mm. 13 550 22 38.5 7 700