| 释义 |
chætognath|ˈkiːtɒgnæθ|
[f. mod.L. Chætognatha, neut. pl. of chætognathus, f. Gr. χαίτη (see chæta) + γνάθος jaw.]
A member of the Chætognatha, a phylum of small enterocœlous marine planktonic animals having two rows of stout spines on the head and a single row of sickle-shaped setæ or jaws; an arrow-worm.
1889in Cent. Dict. 1896A. E. Shipley in Harmer & Shipley Cambr. Nat. Hist. II. 191 S[agitta] hexaptera is the largest Chaetognath known. 1962D. Nichols Echinoderms x. 131 Other lesser phyla of the coelomates with three pairs of coelomic sacs, such as the chaetognaths. |