. Synopsis of the fishes of North America [microform]. Fishes; Poissons. 72 XIPHIID^âXIPHIAS. 419 the longer. Lateral line wavy and irregular, utscending posteriorly. Head 4i in length; depth 5§. D. VIII-I, 2G; A. II, 25. L. 6 feet. In all warm seaa, occasional on our Atlantic coast in summer. (Gasteronteus canaduA Linn. Syst. Nat.: ElacaieatlanticuaCwv. & Val. viii,334: Elacate niflia Giiiitlier, ii, 375; Holbrook, Ichth. S. Car. 97.) Family LXXII.âXIPHIIDJE. {The Sword-fishes.) Scombroid fishes of great size, with the body elongated, naked or covered with rough rudimentary scales, and t
. Synopsis of the fishes of North America [microform]. Fishes; Poissons. 72 XIPHIID^âXIPHIAS. 419 the longer. Lateral line wavy and irregular, utscending posteriorly. Head 4i in length; depth 5§. D. VIII-I, 2G; A. II, 25. L. 6 feet. In all warm seaa, occasional on our Atlantic coast in summer. (Gasteronteus canaduA Linn. Syst. Nat.: ElacaieatlanticuaCwv. & Val. viii,334: Elacate niflia Giiiitlier, ii, 375; Holbrook, Ichth. S. Car. 97.) Family LXXII.âXIPHIIDJE. {The Sword-fishes.) Scombroid fishes of great size, with the body elongated, naked or covered with rough rudimentary scales, and the upper jaw very much prolouged, forming a "sword," which is composed of the consolidated vomer> ethmoid and premaxillaries. Teeth small and rudimentary, or wanting. Dorsal fin long, usually divided in the adult, continuous in the young, without differentiated spinous part, the posterior portion much smaller than the anterior. Anal fin similarly divided in the adult. Caudal peduncle slender, keeled. Ventral fins thoracic, incom- plete or entirely wanting. Caudal fin widely forked in the adult. Gills of peculiar structure, the laminae of each arch joined i^to one plate by reticulations. Gills 4, a slit behind fourth; gill-membranes separate, free from isthmus. Pseudobranchia) present. Brauchiostegals 7. Air- bladder present. Pyloric coeca very numerous. Very young individuals differing much from Ihe adults; the fins high, both jaws prolonged into a beak, and the head armed with long spines. Genera 3; species about 5; powerful fishes, inhabiting the open seas, most of them valued as food. {Xiphiidce GUnther, ii, 511-514.) a, Ventral fins entirely wanting; teeth none. (Xiphiin(B) Xiphias, 209. dfl. Ventral fins present; teeth small. {Umtiophorinte.) b. Ventral rays united into one; dorsal fin low Tetrapturus, 210. bh. Ventral rays three; dorsal very h'gh Histiophorus, 211. 900.âXIPHIAS LinntBus. Sword-fishes. (Linn. Syst. Nat.: type Xiphias gladiua L.) Sword-fis
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectfishes, bookyear1882
