魚類学雑誌
Online ISSN : 1884-7374
Print ISSN : 0021-5090
ISSN-L : 0021-5090
日本近海に出現する浮游性魚卵―III
スズキ亜目
水戸 敏
著者情報
ジャーナル フリー

1963 年 11 巻 1-2 号 p. 39-64_17

詳細
抄録

The present paper, the third of the series of the pelagic fish eggs from Japanese waters, contains the figures and descriptions of the egg and larval development of 35 species, and the matured ovarian eggs of 4 species belonging to the suborder Percina.
These eggs, so far as known from Japanese waters, are spherical in shape, measuring 0.6-1.6 mm in diameter, with a single oil globule measuring 0.1-0.5 mm in diameter. The egg membrane is smooth, without any conspicuous structure, the perivitelline space narrow. The yolk is segmented in Oplegnathus fasciatus (TEMMINCK et SCHLEGEL), O. punctatus (TEMMINCK et SCHLEGEL) ?, Mullidae Nos. 1 and 2, Acropoma japonicum GÜNTER, Sillago japonica TEMMINCK et SCHLEGEL, S. parvisquamis GILL ?, Gerres japonicus BLEEKER and Parapristipoma trilineatum (THUNBERG), but not segmented in Acanthocepola krusensterni (TEMMINCK et SCHLEGEL), Lateolabrax japonicus (CUVIER), Epinephelus fario (THUNBERG), Pseudosciaena crocea (RICHARDSON), P. manchurica (JORDAN et THOMPSON), Collichthys lucidus (RICHARDSON), C. niveatus JORDAN et STARKS, Argyrosomus japonicus (TEMMINCK et SCHLEGEL), A. argentatus (HOUTTUYN), Nibea sp., Girella punctata GRAY, Girella sp., Evynnis japonica TANAKA, Rhabdosargus sarba (FORSKÅL), Mylio macrocephalus (BASILEWSKY), M. latus (HOUT-TUYN), Chrysophrys major TEMMINCK et SCHLEGEL, Sparidae-type Nos. 1-7, Lethrinus nematacanthus BLEEKER, Nemipterus virgatus (HOUTTUYN), Taius tumifrons (TEMMINCK et SCHLEGEL) Leptoscolopsis nagasakiensis TANAKA, Goniistius sp.type 1 and 2.
In most species the melanophores and xanthophores appear on the embryonal body, yolk, oil globule and rarely on the marginal fin during the egg development, but in some species lack the both or one of these pigment-cells on the yolk or oil globule. In Mullidae Nos. 1 and 2 only the melanophores appear, and in G. punctata and G. sp.no pigment-cell appears in the egg.
The oil globule of the newly hatched larva is situated in the anterior part of the yolk in O. fasciatus, O. punctatus?, Mullidae Nos. 1 and 2, L. japonicus, G. japo-nicus, R. sarba, L. nematacanthus, Goniistius sp.type 1 and 2, and it is situated in the posterior part in P. crocea, P. manchurica, C. lucidus, C. niveatus, A. argentatus, N. sp., S. japonica, G. punctata, G. sp., E. japonica, M. macrocephalus, M. latus, C. major, Sparidae-type Nos. 1-7, N. virgatus, T. tumifrons, P. trilineatum and L. nagasakiensis.
The species grouped under the name of “Sparidae-type” are not only similar to each other in their developmental course but also closely resembling to known species belonging to the family Sparidae. They are discriminated from other systematic groups by the following characteristics: (1) Newly hatched larvae have a rather large xanthophore immediately before and behind the eye, behind the ear vesicle and on the middle of the tail. In some species small pigment spots, other than above described ones, scatter all over the body, (2) during the course of the egg development no pigment appears on the yolk surface (rarely a few xanthophores appear on the surrounding area of the oil globule) and (3) the myotome number of the hatched larva is 25-28.

著者関連情報
© 日本魚類学会
前の記事
feedback
Top