| Abstrakt: |
Abstract: 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 (Müller et Henle, 1841). Taxonomic confusion amongD. zugei and its allied species was worked out andD. cheni Teng, 1962 was synonymized withD. zugei. |
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