A treatise on zoology . the pelvic fins. As a rule, there are no pyloric caeca and no air-bladder. 448 TELEOSTEI Family Gobiidae. The dorsal fin has a separate soft hinder portion ;the anterior portion is supported by flexible spines, and may be dentition and scaling varies; the scales may be smooth, ctenoid, orabsent. There is no lateral line, and usually a large anal papilla. Periophthalmus is modified for progression on land, and has powerfulpectoral tins, and protruding eyes brought up on to the top of the forms have not yet been determined with certainty. Maiine an
A treatise on zoology . the pelvic fins. As a rule, there are no pyloric caeca and no air-bladder. 448 TELEOSTEI Family Gobiidae. The dorsal fin has a separate soft hinder portion ;the anterior portion is supported by flexible spines, and may be dentition and scaling varies; the scales may be smooth, ctenoid, orabsent. There is no lateral line, and usually a large anal papilla. Periophthalmus is modified for progression on land, and has powerfulpectoral tins, and protruding eyes brought up on to the top of the forms have not yet been determined with certainty. Maiine andfreshwater, widely distributed. Gohiu,% Art.; widely distributed. Eholris, Gron. ; freshwater, ^ Eiseh. ; Caspian. PeririplifJialnws, Schn. ; tropics. Tribe 3. Echexeidiformes (Discocephali). Distinguished by the extraordinary modification of tlie separateanterior dorsal fin, which extends on to the head as far as the snout, andbecomes flattened out into an oval sucking disc with transverse ridges,. Fig. irachyptcra, Lowe. (From Jordan and Everniann.) strengthened by a double series of serrated plates seemingly the modifiedlepidotrichia (Figs. 464-5) (Storms [427]). The skull is correspondinglyflattened, its bones are deeply sunk and smooth, and there is no eye-muscle X/
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