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陈受忠. 武昌东湖的数种介形类甲壳动物[J]. 水生生物学报, 1956, (2): 314-321.
引用本文: 陈受忠. 武昌东湖的数种介形类甲壳动物[J]. 水生生物学报, 1956, (2): 314-321.
CHEN SHOU-TSUNG. NOTES ON SOME OSTRACODA FROM LAKE TUNGHU,WUCHANG[J]. ACTA HYDROBIOLOGICA SINICA, 1956, (2): 314-321.
Citation: CHEN SHOU-TSUNG. NOTES ON SOME OSTRACODA FROM LAKE TUNGHU,WUCHANG[J]. ACTA HYDROBIOLOGICA SINICA, 1956, (2): 314-321.

武昌东湖的数种介形类甲壳动物

NOTES ON SOME OSTRACODA FROM LAKE TUNGHU,WUCHANG

  • 摘要: 介形类是底栖的切甲类甲壳动物,部分种类的触角上具有发达的游泳刚毛,所以在通常采到的浮游生物标本中亦很常见.早在1903年,G. O. Sars 氏曾经报导过采自我国的介形类共三属五新种.1923年,V. Brehm 也报导过采自我国广州、北京、四川等地的数种介形类,其中还有一新属,三新种及一新变种.

     

    Abstract: The present paper deals with eight known and one new species of Ostracoda,which have been found in the samples of littoral plankton collected in different localities of Lake Tunghu Wuchang.The known species are Cypris subglobosa Sawerby,Strandesia uenoi Klie,Dolerocypris sinensis Sars, Dolerocypris pellucida Klie,Cyprinotus uenoi Brehm,Heterocypris van Douwei Brehm,Stenocypris derupta V vra and Stenocypris malcolmsoni(Brady). The diagnosis of the new species is as follows: Strandesia viridis,sp.n. Female—Length 1.10 mm.,height 0.45 mm.,width 0.39 mm. In dorsal view,the animal is spindle shaped,being slightly narrower behind.The greatest width is located near the center and about one-third of the length of the shell.The left valve overlaps the right one at the anterior end. In side view,the shell is elongate kidney-shaped,with the anterior end broadly and the posterior end narrowly rounded.The highest part of the shell is located at the point one-fifth from the anterior end and it is less than one-half of the length. The swimming-setae of the second antennae are well developed,extend- ing to the tips of the claws.The inner masticatory processes of the maxilla bear two spines which are finely toothed.The length of claws on the second leg is equal to the total length of the distal three podomeres of the same ap- pendage.The length of the terminal claw is less than one-half the dorsal margin of the furcal ramus,and the subterminal claw is usually more than half the length of the terminal claw.The dorsal seta has a length over three- fourths of the terminal claw,while the terminal seta is very short. Male—unknown.

     

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