It is supposed, by most of the classical commentators, that the accipenser was the sturgeon, but this is not quite agreed.—See this point fully discussed by Rondelet, Gesner, and Willoughby. The celebrated Artedi, and the writer of the article on Ichthyology in the ‘Encycl. Method.’ are quite decided in the affirmative. We need have little difficulty, then, in determining it to be the _accipenser sturio_. To our minds there can be no doubt but that it is the fish described by Constantine Porphyrogenita, under the name of βερζήτικον. (De Admin. Imp. 42.) Both in the days of the Romans, and under the Greek empire, the sturgeon was commonly procured from the Pontus or Black Sea. Its popularity appears to have been great in the days of Horace, but it had fallen into disrepute in the time of Pliny. It seems, however, to have retrieved its character afterwards; for one of the authorities quoted by Athenæus says that it was presented at the Roman banquets, crowned with garlands, and accompanied with the playing of pipes. See also Macrobius (Sat. iii, 16.) Martial speaks of it as a much-esteemed delicacy at the imperial table. The elops and the galeus rhodius were fishes nearly allied to the sturgeon. See Pliny and Athenæus. The isinglass fish (_accipenser huso_), although described by Herodotus (Hist. iv, 53), Strabo (Geogr.), and Ælian (xiv, 23), is not noticed by the dietetical writers, unless we suppose it the fish alluded to by Athenæus (vii, 21), where see the notes of Coray and Schweighäuser. Martial mentions the gobius, or gudgeon, as being the first of the viands presented at the banquets of the Venetians. (Xenia, Ep. 83.) Juvenal speaks of it as being a fish of little value, or, at least, low priced. (Sat. xi, 37.) It is, in fact, as Galen states, a very small fish; but he represents it as being delicious, digestible, and wholesome, especially when caught on a stony or rocky shore. Seth gives the same account of it. Diphilus, as quoted by Athenæus, says, that when its flesh is white the gudgeon is tender, wholesome, and digestible. The perch, according to the same authority, bears a close resemblance to the gudgeon. Ausonius calls it the _deliciæ mensarum_. Galen calls it a delicious fish, which is not only of easy digestion but most wholesome. He adds that it, and other fishes of the same description, form blood of a middling consistence, that is to say, neither very watery nor too thick. Both the _perca fluviatilis_ and the _P. marina_ are described by Aristotle, Galen, Athenæus, and the other writers on dietetics. The umber (_sciæna umbra_), a fish resembling the perch, but of great size, was in much esteem as a pickle, which was called _saperda_, and brought from Pontus. See Athen. (iii, 31), and Persius (Sat.)