NDLI: A New Fresh-water Prawn of the Genus Macrobrachium (Crustacea,Decapoda,Caridea) from Iriomote Island of the Ryukyus

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A New Fresh-water Prawn of the Genus Macrobrachium (Crustacea,Decapoda,Caridea) from Iriomote Island of the Ryukyus

Content Provider	Semantic Scholar
Author	Fujino, Takahiro Baba, Keiji
Copyright Year	1973
Abstract	A new species of the fresh-water prawn was found at Ir iomote Island of the Ryukyus, and is here described as Macrobrachiuni shokitai sp. nov. The new species is closely related to Macrobrachiuni formosense Bate, f r om which it differs in having a smaller number of lower rostral teeth, the orbital angle produced as a round convexity, and many tubercles on the surface of the second pereiopod chela, etc. This species is confined to fresh-water of the upper reaches of two rivers, and is characterized by bearing large and few eggs. The genus Macrobrachiuni Bate of the Palaemonidae includes many varied species inhabiting chiefly brackish and fresh waters. From the Okinawa and the Yaeyama Groups of the Ryukyus, seven species of this genus have so far been recorded by Parisi (1919), Ohshima (1935) and Kubo (1940, 1941): Macrobrachiuni equidens (Dana), M. formosense Bate, M. grandimamis (Randall), M. japonicum (de Haan), M. lar (Fabricius), M. latimanus (von Martens), and M. gracilirostre (Miers). Mr. S. Shokita has recently carried out ecological investigations of fresh-water shrimps and prawns in the Yaeyama Group, and has secured a number of specimens of an undescribed species of this genus, which were examined and are described here as M. shokitai sp. nov. As will be seen in the next report by Shokita (1973), this species occurs in the upper parts of both the Urauchi and the Mera Rivers in Iriomote Island, the largest of the Yaeyama Group, and is very remarkable for carrying large and few ova and for having a completely suppressed larval development. This paper provides only the morphological description of the new prawn, and the reader is referred to the
Starting Page	100
Ending Page	110
Page Count	11
File Format	PDF HTM / HTML
Volume Number	46
Alternate Webpage(s)	https://research.nhm.org/pdfs/25503/25503.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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