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. The Century dictionary and cyclopedia; a work of universal reference in all departments of knowledge, with a new atlas of the world ... ion, a subclass of fishesembracing all the teleosts, most of the osseousganoids, and the stuigeons. The technical charac-ters of the group are opercular bones well developed on aseparate and complex suspensoriimi, a double ceratohyal,no pehic elements, primary radii of the fore limb parallelwith basilar elements and entering into the articulationwith the scapular arch, and basilar elements reduced to ametapterygiuni and very rarely a mesopterygium. actinopte
. The Century dictionary and cyclopedia; a work of universal reference in all departments of knowledge, with a new atlas of the world ... ion, a subclass of fishesembracing all the teleosts, most of the osseousganoids, and the stuigeons. The technical charac-ters of the group are opercular bones well developed on aseparate and complex suspensoriimi, a double ceratohyal,no pehic elements, primary radii of the fore limb parallelwith basilar elements and entering into the articulationwith the scapular arch, and basilar elements reduced to ametapterygiuni and very rarely a mesopterygium. actinopterous (ak-ti-nopte-ms), a. [< NL. ac-tinopterus, < Gr. oKT/f {aKTiv-), ray, + Trrepdv,wing.] Ha\-ing the characters of or pertain-ing to the Actinopteri. actinosoma (akti-n6-s6ma), n.\ pi. actinoso-mala (-ma-ta). [< Gr. aKrir (okviv-), ray, 4- cCipa,body.] The entire body of any aetinozoan,whether simple, as in the sea-anemones, or com-posed of several zociids, as in most corals. Actinosphseriiun (akti-no-sferi-um),«. [NL., < Gr. u^nf (ud-rn-), ray,-I-(Ti^nipa, sphere.] 1. Agenus of rhizopods, or eudoplastic protozoans,. Sun-animalcule l^Actinosfiharium exchkorni), The whole animal, with c, c, contractile vacuoles. II. Portion ofperiphery more magnitied, with a, four stiff pseudopodia, and rr,four nuclei or endopTasts. III. A young having a number of nuclei or endoplasts in thecentral parts of the protoplasm, and numerousstiii radiating pseudopodia. Neither conjugation nor fission has been observedamong ordinary Kadiolaria, but both these processes takeplace in Actinosjihcerium. Huxley, Anat. Invert., p. 85. 2. _ [?. r.] A member of this (akti-nost), «. [< Gr. d/cr/f (aKriv-),ray, + bariov, a bone.] In ichth., one of thebones which in true fishes immediately supportthe rays of the pectoral and ventral fins. Theyare generally, in the pectorals, four in number, but some-times, as in some pediculates, are reduced to two,
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