A coelom formed by the union of one or more pairs of primitively distinct coelomic cavities.
Cf. p. [129].
Cf. p. [391].
Gadow, A Classification of Vertebrata, 1898, p. 4.
Sucker-like modifications of the ventral surface of the body, in which the paired fins take no part, are present on the throat in many Fishes which frequent hill-streams, as in some small African and Asiatic Cyprinidae (e.g. Discognathus) and a few Siluridae (e.g. Euglyptosternum).