FAO Species Identification Guide for Fishery Purposes Western

958 Shrimps and Prawns
(particularly those of the genus Heterocarpus), are large in size and are often caught in great numbers
during exploratory trawling operations. They are generally considered to have commercial potential with the
development of a future deep-sea fishery in the area. Finally, it should be mentioned that some coral reef
carideans (mainly members of the families Alpheidae, Gnathophyllidae, Hippolytidae, Hymenoceridae, Palaemonidae,
and Rhynchocinetidae) have an attractive coloration and can be sporadically found in the aquarium
trade, where those uncommon species often command a high price. Nevertheless, their supply are usually
unstable and they are commercially much less important as marine coral fishes. Therefore, individual
identification sheets are provided here for several selected species only, as representatives of the infraorder in
the area. For keys to the families and genera of carideans, users may consult L.B. Holthuis (1993), “The recent
genera of the Caridean and Stenopodidean shrimps (Crustacea, Decapoda): with an appendix on the order
Amphionidacea, C.H.J.M. Fransen and C. van Achterberg (eds), Nationaal Natuurhistorisch Museum, Leiden.”
For the identification of species, users may refer to the keys published by F.A. Chace, Jr (1976-1997: Smithson.
Contrib. Zool. 222, 277, 381, 384, 397, 411, 432, 466, 543, 587), or are encouraged to send the sample(s) to
the author of the present contribution.
Other major groups of shrimps and prawns occurring in the area
Sergestoidea: last 2 pairs of legs reduced or absent;
anterior part of second abdominal pleuron not overlapping
first abdominal pleuron; males with large copulatory
organ on first pair of pleopods; eggs usually released
directly into water, not retained by the female.
Penaeoidea: third leg with pincer; anterior part of second
abdominal pleuron not overlapping first abdominal
pleuron; with large copulatory organ, on first pair of
pleopods in males, and on posterior thoracic sternites in
females; eggs released directly into water, not retained
by the female.
3
Stenopodidea: third leg bearing a very large pincer; anterior
part of second abdominal pleuron not overlapping
first abdominal pleuron.
rd 2
3
maxilliped
1
2
3
4 5
2
(after Liu, 1955)
nd pleuron
pincer
not expanded
anteriorly
Penaeoidea
List of families and species treated in this contribution
The symbol is given when species accounts are included.
Infraorder CARIDEA
Superfamily PASIPHAEOIDEA
PASIPHAEIDAE
Superfamily OPLOPHORIDEA
OPLOPHORIDAE
Superfamily ATYOIDEA
ATYIDAE
Atyopsis moluccensis (De Haan, 1849)
Atyopsis spinipes (Newport, 1847)
Caridina weberi De Man, 1892
1
1
rostrum short or absent
Sergestoidea
3 4
2
Stenopodidea
5
3 rd leg
enlarged