• Korean Journal of Ichthyology
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• v.7 no.2
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• pp.120-127
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• 1995

The taxonomic revision of the genus Periophthalmus from Korea was made based on the fish specimens collected in the southern and western coasts of Korea from September 1983 to October 1994. The genus Periophthalmus in Korea was classified into two species : P. modestus and P. magnuspinnatus n. sp. P. magnuspinnatus differs from all other species of the genus by ventral fin united about two - third the fin and first dorsal fin relatively large, convex, distinct black submarginal band.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.41 no.4
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• pp.289-293
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• 2008

Reproduction of the goby fish Periophthalmus magnuspinnatus was examined using 298 specimens collected from April to October 2005 in a mud flat of Suncheon Bay, Korea. Specimens ranged in body length(BL) from 1.3 to 9.1 cm. The gonadosomatic index(GSI) of females was highest in June and decreased until August. The hepatosomatic index(HSI) and fatness index of females were high in April and then decreased to nadirs in July. Spawning season lated from April to August and the ratio of females to males did not significantly differ($x^2$-test, p>0.05). The first spawning length was 4.5 cm BL, and the size of 50% maturity was estimated at 4.98 cm BL. Fecundity(F) ranged from 1,316 to 4,768 eggs, and the relationship between F and BL was estimated as $F=0.1562BL^{1.4068}(R^2=0.59)$.

• Proceedings of the Zoological Society Korea Conference
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• 2001.04a
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• pp.66.1-66
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• 2001

No Abstract, See Full Text

• Proceedings of the Zoological Society Korea Conference
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• 2003.08a
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• pp.157.4-157
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• 2003

No Abstract, See Full Text

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2003.05a
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• pp.335-336
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• 2003

대부분의 어류는 풍부한 수량과 용존산소를 가지는 환경에서 아가미를 이용하여 수중호흡을 수행하고 있다. 그러나 일부 어류는 가뭄이나 일시적인 수량의 감소로 인하여 용존산소가 결핍된 환경에서 서식하고 있을 뿐 아니라 특히 Mudskipper로 알려진 말뚝망둑어 Periphthalmus modestus와 큰볏말뚝망둑어 P. magnuspinnatus 등은 낮동안에 물 속에서 육상의 갯벌로 나와 활동하는 독특한 이중생활(Amphibious life)을 보이고 있다. (중략)

• Korean Journal of Ichthyology
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• v.23 no.3
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• pp.250-254
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• 2011

Modified organs for air respiration in Korean fish was reviewed in the following 6 Korean fishes: three mudskippers (Boleophthalmus pectinirostris, Periophthalmus modestus and P. magnuspinnatus), two mud loaches (Misgurnus mizolepis and M. anguillicaudatus), and a torrent catfish (Liobagrus mediadiposalis). Three mudskippers and a torrent catfish have a modified epidermis to in order to make up for the deficient oxygen supply. Their epidermis has abundant intraepithelial blood capillaries except dermal capillaries situated just beneath the stratum germinativum of the epidermis in B. pectinirostris. The epidermis was thick due to component of the following cells: two kinds of glands as a small mucous cells and a large club cells in L. mediadiposalis, voluminous cells (swollen cells) swollen by epidermal cells and a small mucous cells in B. pectinirostris, and only voluminous cells having no any glandular cells in P. modestus and P. magnuspinnatus. In Particular, the epidermis of the mudskippers appears to be a web-like structure due to the swollen epithelial cells. The dermal bulges are found in B. pectinirostris and they are situated at the skin covering the body, not appendage of all the fins and the sucking disc. Another modified organ in M. mizolepis and M. anguillicaudatus occurs in intestine and its mucosal epithelium has abundant blood capillaries.