First Record of a Gaper Champsodon longipinnis (Perciformes: Champsodontidae) from Korea

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  • ABSTRACT

    This is the first report of Champsodon longipinnis (Champsodontidae) collected from Korea. The specimen (100.9 mm in standard length) was caught by a bottom trawl in the coastal waters off Busan, Korea. This species is characterized by the following morphological traits: body with small denticulate scales except abdomen around pelvic fin base; posterior end of maxilla extending beyond margin of eye; dark pigmentation on most of the first dorsal fin, upper half of the first to the fourth soft ray of the second dorsal fin, and partial upper lobe of caudal fin. We add C. longipinnis to the Korean fish fauna and suggest a new Korean name, “Jeom-ak-eo-chi,” for the species.


  • KEYWORD

    First record , Champsodon longipinnis , Champsodontidae , off Busan , Korea

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  • [Fig. 1.] Champsodon longipinnis, JNU-869, 100.9 mm SL, bottom trawl, off Busan, Korea. Scale bars = 10 mm.
    Champsodon longipinnis, JNU-869, 100.9 mm SL, bottom trawl, off Busan, Korea. Scale bars = 10 mm.
  • [Table 1.] Comparison of morphological characters of Champsodon longipinnis
    Comparison of morphological characters of Champsodon longipinnis
  • [Fig. 2.] The Illustrations of the head region of Champsodon longipinnis. A, dorsal sensory papillae and bony ridges on the head (P1, five pairs of sensory papillae between parallel bony ridges on the dorsal surface of the head; P2, transverse row of ten sensory papillae between the posterior margins of the pterotic ridges); B, distribution pattern of ventral scales shaded grey; pelvic fins are cut to expose the abdomen. Scale bar = 5.0 mm.
    The Illustrations of the head region of Champsodon longipinnis. A, dorsal sensory papillae and bony ridges on the head (P1, five pairs of sensory papillae between parallel bony ridges on the dorsal surface of the head; P2, transverse row of ten sensory papillae between the posterior margins of the pterotic ridges); B, distribution pattern of ventral scales shaded grey; pelvic fins are cut to expose the abdomen. Scale bar = 5.0 mm.