• Title/Summary/Keyword: Aulopiformes

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A New Record of Scopelarchoides danae (Scopelarchidae, Aulopiformes) Collected from the Southern Sea of Korea (한국 남해에서 채집된 홍메치목(Aulopiformes), Scopelarchidae, Scopelarchoides danae의 첫기록)

  • Jin-Koo Kim;Jung-Hwa Ryu;Se-Hyun Song
    • Korean Journal of Ichthyology
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    • v.35 no.4
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    • pp.361-365
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    • 2023
  • On May 12, 2023, a juvenile specimen (37.6 mm in standard length) belonging to the order Aulopiformes was collected from southern Yokjido, Tongyeong, Korea, using a Bongo net. The specimen was identified as the member of the family Scopelarchidae in having a slender body, a large mouth, large tube-like eyes, a long anal fin base, a developed adipose fin and no photophores on body. Finally, we identify the specimen as Scopelarchoides danae Johnson, 1974 in having 8 dorsal fin rays, 20 pectoral fin rays, 9 pelvic fin rays, 26 anal fin rays, dorsal fin located anteriorly than pelvic fin, and two large pigments below the pectoral fin and posterior to the pelvic fin. Scopelarchoides danae is distinguished from Scopelarchoides signifer in having less dorsal fin rays (8 vs. 9~10) and pectoral fin rays (20 vs. 22~25). The species differs from Scopelarchus guentheri and Scopelarchus analis in that it has no stripes along the both upper and lower of lateral line, and from Scopelarchus michaelsarsi in that it has more anal fin rays (26 vs. 18~21). Because this is the first occurrence among Korean fish fauna, we present its detailed morphological traits, and its new Korean name as "Nun-bang-ul-mae-tung-i".

First Record of Three Barracudina Fishes (Aulopiformes: Teleostei) in Korean Waters

  • Kim, Jin-Koo;Park, Jeong-Ho;Choi, Jung-Hwa;Choi, Kwang-Ho;Choi, Yeong-Min;Chang, Dae-Soo;Kim, Young-Seop
    • Ocean Science Journal
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    • v.42 no.2
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    • pp.61-67
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    • 2007
  • Three barracudina fishes (Paralepididae) were newly recorded from the southern sea of Korea. Lestidium prolixum is characterized by a single band of luminous ducts on the midventral line and absence of a papilla anterior to the eye. Lestrolepis intermedia and L. japonica are similar in having a black papilla immediately in front of the eye and two bands of luminous ducts on the midventral line. However, the dorsal fin of L. intermedia is located more posterior along the body than that of L. japonica, and L. intermedia have larger number of anal fin rays 42 (vs. 36-40) and vertebrae 95 (vs. 86-87) than L. japonica.

New Record of Chlorophthalmus nigromarginatus (Aulopiformes: Chlorophthalmidae) from Korea (한국산 파랑눈매퉁이과(홍메치목) 어류 1 미기록종, Chlorophthalmus nigromarginatus)

  • Jang, Jae-hoon;Lee, Yu-Jin;Kim, Jin-Koo
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.55 no.5
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    • pp.730-735
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    • 2022
  • Two specimens of Chlorophthalmus nigromarginatus Kamohara, 1953 (51.02 mm, 66.04 mm in standard length) belonging to the family Chlorophthalmidae were collected on February 8, 2022 in the eastern Jeju-do Island, Korea using a bottom trawl. The species has the following morphological characteristics: snout length almost the same as orbit diameter, bump absent on predorsal, caudal fin with posterior black margin. C. nigromarginatus is morphologically very similar to C. acutifrons but can be distinguished by caudal fin with black margin (C. acutifrons has no black margin). Molecular analyses showed that our specimens almost matched with C. nigromarginatus according to mtDNA 16S rRNA sequences (99.8%). Therefore, we propose a new Korean name for C. nigromarginatus, "Geom-eun-kko-ri-pa-rang-nun-mae-tung-i".

First Record of the Lizardfishes, Synodus fuscus (Synodontidae, Aulopiformes) from Korea (한국산 꽃동멸속 어류 1 미기록종, Synodus fuscus Tanaka)

  • Choi, Youn
    • Korean Journal of Ichthyology
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    • v.24 no.4
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    • pp.311-313
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    • 2012
  • A single specimen of Synodus fuscus belonging to the genus Synodus in family Synodontidae was firstly collected from the coastal waters of Jeju Island, Korea. We newly add this species to the Korean fish fauna and propose its new Korean name, "Mo-rae-kkot-dong-myeol". This species was characterized by having no conspicuous pigmented area on operculum. The dorsal fin base is shorter than 1/2 of the head length. The morphological measurements and counts of Synodus fuscus were described in detail and a key to species of the genus Synodus from Korea provided in this study.

Morphology of a Larval Hammerjaw Omosudis lowii Gunther 1887 (Aulopiformes, Omosudidae) Identified by Partial Mitochondrial 12S rRNA Gene Analysis (12S rRNA로 동정한 홍메치목 Omosudis lowii 치어의 형태적 특징)

  • Choi, Hae-young;Jang, Yo-Soon;Oh, Ji-na;Kim, Sung
    • Korean Journal of Ichthyology
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    • v.32 no.4
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    • pp.239-244
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    • 2020
  • The morphological characteristics of a larval fish (7.8 mm in body length) collected off Chuuk, Micronesia were highly similar to those of larval Omosudis sp., except fin development and body length. It was identified as Omosudis lowii by partial mitochondrial 12S rRNA gene analysis. The morphological traits of the larval fish validated by the molecular genetic marker will be informative for species-level identification of larval Omosudis lowii.

Taxonomic Review of the Genus Saurida (Aulopiformes: Synodontidae) from Korea (한국산 매퉁이속(홍메치목, 매퉁이과) 어류의 분류학적 재검토)

  • Yeo, Minyu;Kim, JinKoo
    • Korean Journal of Ichthyology
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    • v.30 no.4
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    • pp.205-216
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    • 2018
  • Taxonomic review of the genus Saurida, belonging to the family Synodontidae, was conducted based on three species (S. macrolepis, S. microlepis and S. wanieso) collected from Korea between 1994 and 2017, and one species (S. elongata) loaned from Japan. S. wanieso can be readily distinguished from S. tumbil by following characteristics: outer palatine teeth (2 rows in S. wanieso vs. 3~4 rows in S. tumbil) and pectoral fin length (reaching to pelvic - dorsal line in S. wanieso vs. not reaching to pelvic - dorsal line in S. tumbil). In counts, the four Saurida spp. are well distinguished: number of lateral line scales (48~50 in S. macrolepis vs. 54~58 in S. wanieso vs. 61~62 in S. elongata vs. 63~70 in S. microlepis), vertebrae (47~49 in S. macrolepis vs. 51~53 in S. wanieso vs. 57~59 in S. elongata vs. 62~64 in S. microlepis). The present study suggests S. undosquamis and S. tumbil must be absent in Korean waters, and also S. elongata may be rare or absent in Korean waters. Here we use the Korean name, "tum-bil-mae-tung-i" for S. wanieso, following Yamada et al. (1995) who treated Korean S. tumbil as S. wanieso.