FAO Species Identification Guide for Fishery Purposes Western

904 Shrimps and Prawns
2a. First leg without epipod . . . . . . . . . . . . . . . . . . . . . . . . . . . . Trachypenaeus villaluzi
2b. First leg with epipod . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . → 3
3a. Rostrum curved downward (female thelycum with sharply pointed apex) . Trachypenaeus gonospinifer
3b. Rostrum straight or curved upward . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . → 4
4a. Male petasma horn-like; female thelycum with sharply pointed apex . . . . . .Trachypenaeus sedili
4b. Male petasma T-shaped, female thelycum
with round apex . . . . . . . . . . . . . . . . . . → 5
5a. Rostrum straight and armed with 8 to 11
upper teeth; fourth and fifth abdominal segments
without posteromedian incisions
(Fig. 55a); fifth leg extending beyond antennal
scale; posterior plate of female thelycum
without distinct notch . . Trachypenaeus longipes
5b. Rostrum upturned at tip and armed with 6 to
8 upper teeth; fourth and fifth abdominal
segments with posteromedian incisions
(Fig. 55b); fifth leg not reaching tip of antennal
scale; posterior plate of female thelycum
having a distinct median notch ......
. . . . . . . . . . . . . . . . Trachypenaeus curvirostris
6a. Male petasma T-shaped; posterior plate of female thelycum as a forwardly directed pocket
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Trachypenaeus malaiana
6b. Male petasma horn-like; posterior plate of female thelycum not forming a pocket . . . . . . . . →7
7a. In males, distolateral projections of petasma narrow; in females, anterior plate of
thelycum without a backwardly directed projection . . . . . . . . . . . . Trachypenaeus anchoralis
7b. In males, distolateral projections of petasma widely apart; in females, anterior plate of
thelycum with a backwardly directed projection . . . . . . . . . . . . . Trachypenaeus granulosus
List of species occurring in the area
The symbol is given when species accounts are included.
Atypopenaeus bricornis Racek and Dall, 1965
Atypopenaeus dearmatus De Man, 1907
Atypopenaeus formosus Dall, 1957
Atypopenaeus stenodactylus (Stimpson, 1860)
Funchalia taaningi Burekenroad, 1940
Heteropenaeus longimanus De Man, 1896
Metapenaeopsis aegyptia Galil and Golani, 1990
Metapenaeopsis angusta Crosnier, 1987
Metapenaeopsis assimilis (De Man, 1920)
Metapenaeopsis barbata (De Haan, 1844)
Metapenaeopsis ceylonica Starobogatov, 1972
Metapenaeopsis commensalis Borradaile, 1898
Metapenaeopsis costata Crosnier, 1991
Metapenaeopsis difficilis Crosnier, 1991
Metapenaeopsis distincta (De Man, 1907)
Metapenaeopsis evermanni (Rathbun, 1906)
Metapenaeopsis fusca R.J.G. Manning, 1988
Metapenaeopsis gaillardi Crosnier, 1991
Metapenaeopsis gallensis (Pearson, 1905)
Metapenaeopsis hilarula (De Man, 1911)
Metapenaeopsis lamellata (De Haan, 1844)
Metapenaeopsis laubieri Crosnier, 1991
Metapenaeopsis liui Crosnier, 1987
a) Trachypenaeus
longipes
III
IV
V
VI
b) Trachypenaeus
curvirostris
posteriormedian
incisions
Fig. 55 abdominal segments (dorsal view)
(after Hayashi, 1992)