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Title Transcription
シマネケン マスダシ ノ チュウブ チュウシントウ マスダソウグン カラ サンシュツ シタ Callianassa nishikawai Karasawa 1993ノ トウキョウコウ ノ カセキ
Title Alternative
Carapace of Callianassa nishikawai Karasawa,1993(Crustacea,Decapoda,Callianassidae)from Midlle Miocene Masuda Group,Masuda City,Shimane Prefecture southwestern Japan
File
language
jpn
Author
Sakumoto, Tatsuya
Description
The carapace of Miocene species Callianassa nishikawai Karasawa,1993 is first described from the Middle Miocene Toyoda Formation,Masuda Group in Masuda City,Shimane Prefecture,southwestern Japan.It represents following characters:dorsal carapace longer than wide;rostral spine triangular with an obtuse apex;two lateral projections smaller than rostral spine;dorsal oval extending about 0.3 of carapace length;cervical groove distinct; cardiac region narrow without cardiac prominence,which could not be found in the type specimens.In this paper,the systematic status of C. nishikawai Karasawa,1993 is reexamined on the basis of their characters.C. nishikawai is placed in the family Callianassidae Dana,1852 and readily distinguished from the subfamily Eucalliinae Manning and Felder,1991 in the Callianassidae.
Journal Title
島根大学地球資源環境学研究報告
Volume
18
Start Page
91
End Page
96
ISSN
13439774
Published Date
1999-12-25
NCID
AA11455176
Publisher
島根大学総合理工学部地球資源環境学教室
Publisher Aalternative
Department of Geoscience, Interdisciplinary Faculty of Science and Engineering, Shimane University
NII Type
Departmental Bulletin Paper
OAI-PMH Set
Interdisciplinary Graduate School of Science and Engineering
Remark
12-14,16+ / 1993+