A new species of the genusDasyatis (Elasmobranchii: Dasyatididae) from southern Japan and lectotype designation ofD. zugei

Autor:	Kazuhiro Nakaya, Kiyonori Nishida
Rok vydání:	1988
Předmět:	Dasyatis acutirostra biology Elasmobranchii Dasyatis zugei Holotype Zoology Taxonomy (biology) Dasyatis Anatomy biology.organism_classification Snout Ecology Evolution Behavior and Systematics China sea
Zdroj:	Ichthyological Research. 35:115-123
ISSN:	1616-3915 1341-8998
DOI:	10.1007/bf02905395
Popis:	Dasyatis acutirostra sp. nov. is described on the basis of 21 specimens from the East China Sea and southern part of Japanese waters. The new species is characterized by having small eyeball (2.4–3.8% of disc width), long snout (36.9–43.9% of disc width), 129–135 pectoral radiais, 23–28 pelvic radiais, 121–139 prespine separate vertebral centra and 22–24 intestinal valve turns, the absence of oral papillae, and the presence of ventral tail fold. Lectotype and paralectotypes were designated forD. zugei (Muller et Henle, 1841). Taxonomic confusion amongD. zugei and its allied species was worked out andD. cheni Teng, 1962 was synonymized withD. zugei.
Databáze:	OpenAIRE
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