. Fishes. Fishes. 430 Acanthopterygii; Synentognathi having the anal fin much modified in the male, forming an intromittent organ, as in the PwciliidcB. One species occurs in the river mouths in Samoa. The flying-fishes have both jaws short, and at least the. Fig. 338—PharrHiiosed Flying-fish, i^'oAaJor acMtos (Val.). Panama, pectoral fins much enlarged, so that the fish may sail in the air for a longer or shorter distance. The smaller species have usually shorter fins and approach more nearly to the halfbeaks. Fodiator acntus, with sharp jaws, and Hemiexoccctns, with a short beak on the loAve
. Fishes. Fishes. 430 Acanthopterygii; Synentognathi having the anal fin much modified in the male, forming an intromittent organ, as in the PwciliidcB. One species occurs in the river mouths in Samoa. The flying-fishes have both jaws short, and at least the. Fig. 338—PharrHiiosed Flying-fish, i^'oAaJor acMtos (Val.). Panama, pectoral fins much enlarged, so that the fish may sail in the air for a longer or shorter distance. The smaller species have usually shorter fins and approach more nearly to the halfbeaks. Fodiator acntus, with sharp jaws, and Hemiexoccctns, with a short beak on the loAver jaw, are especially intermediate. The flight of the flying-fishes is described in detail on p. 44. The Catalina flying-fish, Cypselurus californicns, of the shore of southern California is perhaps the largest of the known species, reaching a length of 18 inches. To this genus, Cypselurus, having a long dorsal and short anal, and with ventrals en- larged as well as pectorals, belong all the species strongest in flight, Cypselunis heterurus and furcatus of the Atlantic, Cypse- lurus simus of Hawaii and Cypselurus agoo \n Japan. The very young of most of these species have a long barbel at the chin which is lost with age. In the genus Exonautes the base of anal fin is long, as long as that of the dorsal. The species of this group, also strong in flight, are widely distributed. Most of the European flying- fishes, as Exonautes rondeleti, Exonautes rubescens, and Exo- nautes vinciguerrce, belong to this group, while those of Cypse- lurus mostly inhabit the Pacific. The large Australian species Exonautes unicolor belongs to this group. In the restricted genus Exoccutus the ventral fins are short and not used in flight. ExoccEtus volitans (evolans) is a small flying-fish, with short. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble
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