| 释义 |
Trionyx Zool.|ˈtraɪənɪks, traɪˈəʊnɪks|
[mod.L. triōnyx, f. Gr. τρι- tri- + ὄνυξ nail; cf. Gr. τριώνυχ-ος having three nails.]
Name of a genus of chelonian reptiles, so called because only three of the five toes have nails. There are several species, including T. triunguis, sinensis, ferox, the Nilotic, Chinese, and American Trionyx.
1835Kirby Hab. & Inst. Anim. II. xxii. 433 The Trionyx, also, a kind of tortoise, devours them [the young crocodiles] as soon as hatched. 1878Bell Gegenbaur's Comp. Anat. 427 These are wanting in Trionyx. 1896List Anim. Zool. Soc. 570 Trionyx muticus, Unarmed Trionyx; Hab. North America. |