. Text book of vertebrate zoology. Vertebrates; Anatomy, Comparative. 26o CLASSIFICATION OF VERTEBRATES. Hemitripterus, Platycephalus, etc., are marine. Lepidocottus, oligocene. The closely allied Agonid^ are armored. Discoboli, the skin naked: bases of the ventral fins forming a sucker on the lower surface. Cyclop- terus, lump-fish ; Liparis; TrigliDjE, covered with scales or bony plates; anal without spines; two or three rays of the pectoral separate from the rest. Trigla (appears in the miocene), the gurnards, European; Prio- 7iotiis, sea-robins, on our coasts. The finger-like free rays of
. Text book of vertebrate zoology. Vertebrates; Anatomy, Comparative. 26o CLASSIFICATION OF VERTEBRATES. Hemitripterus, Platycephalus, etc., are marine. Lepidocottus, oligocene. The closely allied Agonid^ are armored. Discoboli, the skin naked: bases of the ventral fins forming a sucker on the lower surface. Cyclop- terus, lump-fish ; Liparis; TrigliDjE, covered with scales or bony plates; anal without spines; two or three rays of the pectoral separate from the rest. Trigla (appears in the miocene), the gurnards, European; Prio- 7iotiis, sea-robins, on our coasts. The finger-like free rays of the pectoral are sensory. The DactylopteriDjE share with the Exocoetidas {supra) the common name, flying-fishes; they have armored bodies, lack a lateral line, have pectorals enormously developed, and no palatine teeth. Dactyl- opteriis. Allied is Pegasus, with smaller pectorals and elongate snout, from the East Indies. Sub-Order 5. Xenopterygii. No scales, no spinous dorsal, gill arches reduced, a ventral sucker between the pectorals but not formed by them. The only family Gobie- SOCIDjE is somewhat closely related to the Batrachidae and Cottidje. Gobiesox, American. Sub-Order 6. Holconoti. Anal fin very long, scales cycloid, lower pharyngeals united, -^oung brought forth alive. The surf perches (EmbiotociDjE) of the Pacific coast form the only members of this group, which finds its nearest relatives in the percoid fishes and in the pharyngognaths {infra). Cytnatogaster, Embio- ioca, Holconoitis, U. S.; Ditrema, Japan. Sub-Order 7. Pharyngognathi. Nostrils double, lower pharyngeals united, scales cycloid; oviparous. A single family, Labrid^e, of percoid affinities, most of the species being tropical or sub-tropical shore feeders. Labrus, European wrasses; Cteno- labrus, cunners; Tautoga j Scarus, parrot-fish. Allied are the tropical. Fig. 260. Cunner, Ctenolabrus Lwni/eiis, .ifter Please note that these images are extracted from scanned page images that may have been d
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