• Title/Summary/Keyword: ctenoid

Search Result 5, Processing Time 0.019 seconds

First Record of Icelinus japonicus (Scorpaeniformes: Cottidae) from Korea (서해 중부연안에서 채집된 둑중개과(Cottidae) 한국미기록종, Icelinus japonicus)

  • Kim, Byung-Jik
    • Korean Journal of Ichthyology
    • /
    • v.23 no.4
    • /
    • pp.305-309
    • /
    • 2011
  • Three specimens of a small sculpin, Icelinus japonicus, were collected from the midwestern coastal waters of the Korean Peninsula firstly. The species is characterized by having two ctenoid scale rows extending posterior end of the second dorsal fin along the dorso-lateral surface of the body, pelvic fin with a spine and two soft rays, and teeth on vomer and palatines. A new Korean name, "Du-jul-bil-neul-hoes-dae", is proposed for the species.

First Record of Icelus toyamensis (Scorpaeniformes: Cottidae) from the East Sea, Korea

  • Song, Young Sun;Kim, Jin-Koo;Ryu, Jung-Hwa;Kim, Hyeon-Ju;Kweon, Seon-Man;Choi, Seung-Ho
    • Animal Systematics, Evolution and Diversity
    • /
    • v.28 no.4
    • /
    • pp.304-307
    • /
    • 2012
  • A three specimen of Icelus toyamensis, belonging to Cottidae, Scorpaeniformes, was firstly collected from the East Sea, Korea during 2007-2009. We herein described the species as the first record from Korea on the basis of these specimens. Icelus toyamensis is characterized by the following morphological combinations: spinous scales absent on the base of dorsal fin; small ctenoid scales scattered on body sides; gill rakers are short, tubular, and relatively broad; the uppermost preopercular spine is sharp and simple; dorsal fin rays VIII-IX, 20-21; anal fin soft rays 18-19; pectoral fin rays 18, and vertebrae 40-41. New Korean name of I. toyamensis is proposed as "Min-jul-ga-si-hoet-dae."

Characteristic of Scale on the Gobioidei(Pisces: Perciformes) from Korea (한국산 망둑어 아목 어류의 비늘 특성)

  • 이용주
    • Animal Systematics, Evolution and Diversity
    • /
    • v.14 no.2
    • /
    • pp.121-134
    • /
    • 1998
  • 1983년 7월부터 1995년 10월까지 국내에서 채집된 망둑어아목 어류 4과 28속 51종을 대상으로 몸의 부위에 따른 비늘의 종류와 미병부 측면 비늘의 형태를 조사 비교하였다. Luciogobius grandis, L. guttatus 및 Leucopsarion petersi를 제외한 48종은 비늘을 가지고 있었으며, 비늘은 즐린과 원린의 2종류로 구분되었다. 특징적인 것은 동일 개체 내에서도 어체의 각 부위에 따라 종류, 형태, 크기, 초점의 위치, 구와 융기선수 및 소극수 등이 다르게 나타나지만 속과 종 수준에서 비교적 안정된 특징을 보여주었으며, 비늘의 유무와 그 종류에 따라 망둑어아목 어류는 5개의 group으로 분류되었다. 미병부 비늘의 형태는 5각형, 6각형, 원형 및 타원형으로 구분되었다. 또한 Odontobutis obscura interrupta, O. platycephala 및 Hypseleotris swinhoni는 2∼3열의 소극을 가지고 있고, Eutaeniichtys gilli와 Parioglossus dotui는 비늘의 초점이 중앙에 위치하고 있어 다른 망둑어아목 어류와 차이를 나타내었다.

  • PDF

First Record of the Eyebar Goby, Gnatholepis cauerensis (Perciformes: Gobiidae) from Jejudo Island, Korea (우리나라 제주도 남부 연안에서 채집된 망둑어과 한국첫기록종, Gnatholepis cauerensis)

  • Cho, Hyun-Geun;Kim, Byung-Jik
    • Korean Journal of Ichthyology
    • /
    • v.34 no.1
    • /
    • pp.64-70
    • /
    • 2022
  • The Eyebar goby, Gnatholepis cauerensis is reported firstly from Korea, based on four specimens (36.3~47.1 mm in SL) collected at depth range of 12~16 m in the southern coastal waters of Jejudo Island, Korea. They are characterized by having mostly ctenoid scales on body, head including cheek, opercle, and middle of predorsal region with cycloid scales, and a unique coloration of yellow blotch with marginally black marking above pectoral fin base as well as transverse black bar below eye. A new Korean name, "Geom-eun-nun-ddi-mang-dug", is proposed for the species.

Relative Growth and Squamation in Larvae and Juvenile of Cultured Larimichthys polyactis (Sciaenidae) (양식산 참조기(Larimichthys polyactis) (민어과) 자치어의 상대성장과 비늘 형성)

  • Soo-Been Kim;Jeong-Hyeon Cho;Jin-Koo Kim
    • Korean Journal of Fisheries and Aquatic Sciences
    • /
    • v.56 no.3
    • /
    • pp.324-330
    • /
    • 2023
  • We investigated the relative growth and squamation of larvae and juveniles of cultured Larimichthys polyactis. Analysis of the relative growth of larvae and juveniles showed that their preanal length, head length, eye diameter, body depth, and snout length increased with growth. There was no significant chage in the relative growth. The ratio of preanus length to standard length (SL) increased rapidly until SL was approximately 12 mm, and then increased gradually. Cycloid scales first appeared on the lateral line, progressed to the abdominal cavity at 15.13 mm SL, and expanded to the occipital region, base of pectoral fin, and ventral region of the eye at 17.82 mm SL. At 18.03 mm SL, scales formed on the cheek, and those at the base of pectoral fin and in the abdominal cavity were connected to each other. At 19.06 mm SL, major part of the head was covered by scales, except near the lower jaw. Cycloid scales on the lateral line changed to ctenoid scales at the range of 31.71-32.24 mm SL, and those on the nape changed at the range of 69.02-70.84 mm SL. Our results may help to establish conservation and management strategy for Larimichthys polyactis aquaculture.