FAO Species Identification Guide for Fishery Purposes Western

900 Shrimps and Prawns
9a. In males, petasma with subdistolateral lobes pointed (Fig. 40d); in females, thelycum
with a distinct median pit (Fig. 41g) . . . . . . . . . . . . . . . . . . . . . Parapenaeus lanceolatus
9b. In males, petasma with subdistolateral lobes rounded (Fig. 40e); in females, thelycum
without a pit at middle (Fig. 41h, sometimes bearing a tubercle) . . . . . Parapenaeus australiensis
a) Parapenaeus
ruberoculatus
a) Parapenaeus
investigatoris
e) Parapenaeus
sextuberculatus
subdistolateral
lobe
b) Parapenaeus
sextuberculatus
anterior
plate
posterior
plate
c) Parapenaeus
fissurorides
subdistolateral
lobe
Fig. 40 distal part of petasma (ventral view)
(after Crosnier, 1985)
b) Parapenaeus
murrayi
f) Parapenaeus
fissuroides
longitudinal
swellings
Fig. 41 thelycum
(after Crosnier, 1985)
c) Parapenaeus
fissurus
g) Parapenaeus
lanceolatus
d) Parapenaeus
lanceolatus
median
pit
subdistolateral
lobe
e) Parapenaeus
australiensis
d) Parapenaeus
perezfarfante
tubercle of some specimens
h) Parapenaeus australiensis
Key to the species of Penaeopsis occurring in the area
Note: for more information on the species of this genus, see the work of Pérez Farfante (1980, Fish. Bull.: 77).
1a. Telson generally with 3 pairs of movable spines (Fig. 42a); pterygostomian spine above
anterolateral corner of carapace (Fig. 43a) . . . . . . . . . . . . . . . . . . . Penaeopsis rectacuta
1b. Telson generally with 2 pairs of movable spines (Fig. 42b); pterygostomian spine at
anterolateral corner of carapace (Fig. 43b) . . . . . . . . . . . . . . . . . . . . . . . . . . . . → 2