amphioxidæ

pl. [From amphioxus (q.v.).] A family of fishes, which Owen makes the only one under his first sub-order Pharyngobranchii, or Cirrhostomi, of his Order I., Derm opter i. Huxley regards it as the only family under his sixth and last order of fishes, the Pharyngobranchii. [AMPHIOXUS.] both sides; ὀξύς ( oxus ) = sharp. So designated because it tapers at both ends.] A genus of fishes of an organisation so humble, that the first specimen discovered was believed by Pallas to be a slug, and was described by him as the Limax lanceolatus . It is now called Amphioxus lanceolatus. It is found in the Archipelago, and is a member also of the British fauna. [A MPH I OXIDE] so lowly organised as the lancelet, or am phioxus." Darwin: Desce Descent of Man, vol. 1, pt. 1.,ch. vi. ăm-phi-pneusť-a, ăm-phi-pneŭsts, 8. pl. [Gr. ἀμφί ( amphi ) = on both sides, and πνέω (pneō), fut. πνεύσομαι (pneusomai) = to breathe. Double-breathers.] Zool.: An old order of tailed amphibians which retain the gills through life. ăm-phí-pod, ăm'-phi-pōde ( sing .), ămphíp ôd-ạ, ăm-phí-pods, ăm-phipõdes ( pl .), s. [From Gr. ἀμφί ( amphi ) = on both sides; πούς ( pous ) = gen it. ποδός (podos) foot; ποδά ( pod a ) = feet. Having feet on both sides.] A. Sing.: An animal belonging to the Crustaceous order Amphipod a. (See plural.] B. Plur.: An order of Crustaceans, consisting of species provided with feet both for walking and swimming. They live in the water, or burrow in the sand, or are parasitic upon fish. When they swim they lie on their side. Some, when on shore, leap with agility. The order consists of two families, the Hyperidæ and the Gammaridæ. ăm-phíp'-ô-dal, a . [AMPHIPOD.) The same as amphipodous (q.v.). ăm-phip-o-dạn, s. [AMPHIPOD.) Any individual of the Amphipod a. ăm-phíp'-od-ous, a . [Eng. amphipod ; -ous .] Pertaining to the Amphipod a (q. v.).