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Volume 16 (1969)
- Issue 4 Pages 131-
- Issue 3 Pages 93-
- Issue 2 Pages 41-
- Issue 1 Pages 1-
Volume 16, Issue 4
Displaying 1-6 of 6 articles from this issue
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Seiro Kimura, Hiroshi Tsukahara1969 Volume 16 Issue 4 Pages 131-134
Published: December 25, 1969
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSSummary The present authors obtained two young salmon in Ariake Sound with set net in Decem-ber, 1951 and March, 1962 (Fig.1).Both specimens are immature famales and 172 and 225 mm in total length.Their measurements and counts are shown in Table 1.These specimens also show the follow-ing characters: tip of the dorsal fin is dipped with jet black ; posterior margin of the caudal fin is edged with pale black ; none of the crimson spots are scattered on the side of body (Fig.2).There-fore, the authors identified these young salmon as the smolt of Oncorhynchus masou (Brevoort).The anadromous adults of this species have been un-known in Ariake Sound as yet, but the fluvial dwarf salmon belonging to the same species occurs generally in the rivers pouring into this Sound.Several specimens of this fluvial form were fished up by the authors in Sakai River (Fig.1) at about 3 km upstream from its estuary.Some fishermen and anglers in northwestern Kyushu are also assert ing that the fluvial dwarf salmon are sometimes caught in the lower reach of the rivers in spring.Moreover, a few specimens having intermediate ap- pearance between parr and smolt were taken by the authors in the lower and middle reach of the rivers in Kyushu.The present smolts from Ariake Sound are possibly thought to be immigrant of the fluvial dwarf salmon.View full abstractDownload PDF (522K) -
Kunihiko Fukusho1969 Volume 16 Issue 4 Pages 135-142
Published: December 25, 1969
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSAbstract The re-examination on the intestinal convolution of pomacentrid fishes including 10 genera and 32 species were carried out as the first step in the anatomical comparison of the two tax-onomic groups, the pomacentrids and cichlids.The results obtained are shown as follows: 1) The observation on a substantial number of specimens in Chromis notatus revealed that the species has a specific intestinal type only with few individual variations, convincing the specificity of intestinal type in this group of fish;2) In the fishes of Abudefduf vaigiensis and Actinicola percula, the specific intestinal type is completed at 6.1 cm (S.L.) in the former and 4.6 cm in the latter;3) Four distinct intestinal types are found among the pomacentrids examined;4) These four types, though different in the complexity of coiling, are somewhat similar to those of the cichlids.View full abstractDownload PDF (993K) -
Fujio Yasuda, Yoshiaki Tominaga1969 Volume 16 Issue 4 Pages 143-151
Published: December 25, 1969
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSA new species of pomacanthine fish, Holacanthus venustus, is described from the Pacific coast of Japan. Young of H.sexstriatus and H.septentrionalis are elucidated by rearing them in the aquaria. The young of H.sexstriatus is similar but distinguishable from that of H. semicirculatus and H.striatus in color pattern. H.albofasciatus is proved to be the young of H. septentrionalis.View full abstractDownload PDF (11823K) -
Nobuhiko Taniguchi1969 Volume 16 Issue 4 Pages 153-156
Published: December 25, 1969
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSExamining the vertebrae of 15 species of the sciaenid fishes collected from the waters around Japan and the China Sea, it was found that these species are divided into five groups on the basis of the vertebral characters; Nibea-, Johnius-, Argyrosomus-, Pseudosciaena- and Collichthys-forms. The Nibea- form is represented by the fishes of the genera Nibea and Miichthys; Johnius-form by the genera Johnius and Wak; Argyrosomus-form by the genera Argyrosomus and Atrobucca; Pseudosciaena-form by the genus Pseudosciaena; and Collichthys-form by the genus Collichthys.
Of the five forms of the vertebrae, the Nibea- form is the most generalized and the Johnius-, Collichthys-and Pseudosciaena-forms are considered to be specialized. The Argyrosomus-form seems to be intermediate between the Nibea- and Pseudosciaena-forms.It is concluded that the vertebrae are useful character, as well as the cranium and sagitta, for the systematic studies of the sciaenid fishes.View full abstractDownload PDF (596K) -
Clifford Ray Johnson1969 Volume 16 Issue 4 Pages 157-160
Published: December 25, 1969
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSFrom 1964 through 1965 the intertidal fishes of Okinawa-jima were investigated. This paper concerns the families Serranidae, Pseudochromidae, and Apogonidae of which three serranids, one pseudochromid and three apogonids were found to inhabit the intertidal zone either as juveniles or adults. Epinephelus melanostigma and Apogon nigrofasciatus are reported for the first time from the Ryukyu Islands.View full abstractDownload PDF (581K) -
Souldti Huzita, Koichiro Nishino1969 Volume 16 Issue 4 Pages 161
Published: December 25, 1969
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSA specimen of Anarrhichas orientalis Pallas was caught by he long line on July 16, 1969 frorn Miyako Bay, Japan.In Japan, this species has hitherto been recorded from only the coast of Hokkaido, accordingly, the present record is thought to be the southermmost distribution in Japan.The specimen was 84cm in total length.View full abstractDownload PDF (2184K)
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