Sunday, May 31, 2015

[Crustacea • 2015] Macrobrachium phongnhaense • A New Species of Troglobitic Freshwater Prawn of the genus Macrobrachium Bate, 1868 (Crustacea: Decapoda: Palaemonidae) from Phong Nha-Ke Bang National Park, Quang Binh Province, Vietnam


Macrobrachium phongnhaense
Tu & Cuong, 2015
DOI: 10.15625/0866-7160/v36n3.5969

ABSTRACT

Macrobrachium phongnhaense sp. n. is a new species of troglobitic shrimp discovered in some caves of Phong Nha-Ke Bang National Park, Quang Binh province, Vietnam.


Habitat: This species lives in streams and standing water in the caves. These caves can be very long, about 4-5 km, such as Va Cave. They are completely without light and water in the cave is mainly from infiltration. Substrate can be silt, muddy or sandy mud.

Distribution: Found only in a few caves (Va, 35, Son Doong) in the Phong Nha-Ke Bang National Park, Quang Binh province, Vietnam.

Etymology: Shrimp named for location where first obtained in caves in the Phong Nha-Ke Bang National Park.

Remarked: The new species is characterized by a transparent body, highly degenerated eyes, smooth and slender second pereiodpods, elongated telson and unarmed preanal region. Morphological comparisons with allied troglobitic congeners are given in table 1.



Do Van Tu and Nguyen Tong Cuong. 2015. A New Species of Troglobitic Freshwater Prawn of the genus Macrobrachium Bate, 1868 (Crustacea: Decapoda: Palaemonidae) from Phong Nha-Ke Bang National Park, Quang Binh Province, Vietnam.
Tap Chi Sinh Hoc (Vietnam Journal of Biology)  36(3); 301-308.

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