. Fishes. Fishes. Berycoidei 471 occurs at Honolulu. Holotrachys lima is a small, brick-red fish with small very rough scales found throughout Polynesia. Fossil species of Holocentrus, Myripristis, and related extinct genera occur in the Eocene and Miocene. Holocentrus macro- cephalus, from Monte Bolca Eocene, is one of the best known, Myricanthus leptacanthus from the same region, has very slender spines in the fins. The Polymixiidae.—The family of PolymixiidcE, or barbudos, is one of the most interesting in Ichthyology from its bewilder- ing combination of characters belonging to different g
. Fishes. Fishes. Berycoidei 471 occurs at Honolulu. Holotrachys lima is a small, brick-red fish with small very rough scales found throughout Polynesia. Fossil species of Holocentrus, Myripristis, and related extinct genera occur in the Eocene and Miocene. Holocentrus macro- cephalus, from Monte Bolca Eocene, is one of the best known, Myricanthus leptacanthus from the same region, has very slender spines in the fins. The Polymixiidae.—The family of PolymixiidcE, or barbudos, is one of the most interesting in Ichthyology from its bewilder- ing combination of characters belonging to different groups. With the general aspect of a Berycoid, the ventral rays I, 7,. Fig. 374.—Pine-cone Fish, Monocentris japonicus (Houttuyn). Waka, Japan. and the single dorsal fin with a few spines, Polymixia has the scales rather smooth and at the chin are two long barbels which look remarkably like those of the family of Mnllidcc or Sur- mullets. As in the Mullida;, there are but four branchiostegals. In other regards the two groups seem to have little in common. According to Starks, the specialized feelers at the chin are different in structure and must have been independently developed in the two groups. In Polymixia, each barbel is suspended from the hypohyal; three rudimentary branchioste- gals forming its thickened base. In Mullus, each barbel is sus- pended from the trip of a slender projection of the ceratohyal, having no connection with the branchiostegals. Polymixia pos-. 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 the original Jordan, David Starr, 1851-1931. New York, H. Holt and Company
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