FAO Species Identification Guide for Fishery Purposes Western

Palaemonidae 965
Exopalaemon styliferus (H. Milne Edwards, 1840)
En - Roshna prawn; Fr - Bouqet rosna; Sp - Camarón rosna.
Maximum total length for males 9 cm; egg-bearing females 6.8 to 8.6 cm. Inhabits shallow coastal
waters, brackish or marine, occasionally also in fresh water. A small species, abundance in the area
uncertain, probably without commercial importance and only caught incidentally in fisheries for other
shrimps. Indo-West Pacific from Pakistan to Thailand and Borneo.
6-10
lower
teeth
2
1
(after Holthuis and Miguel, 1984)
Exopalaemon vietnamicus Nguyên, 1992
3
4
5
En - Vietnamese crest prawn.
Maximum body length 7.7 cm; egg-bearing females more than 4 cm body length. Inhabits estuaries
and shallow coastal mud flat areas near river mouths. Caught by conical set nets and push nets.
Often occurs in large quantities in coastal rice shrimp farming areas and semi-extensive shrimp
culture ponds. Sometimes too abundant, becoming a food competitor of cultured penaeid prawns.
In certain areas it constitutes 40 to 50% of the total shrimp harvest at the end of the rainy season.
Marketed dried or fresh and usually mixed with other small penaeids; an important food source for
local consumption. Restricted to southeastern Viet Nam near Ho Chi Min City.
12-15
lower
teeth
5-8 upper teeth
1
rostral crest
3
2
4
5
(after Nguyên, 1992)