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on the image which your specimen most closely resembles.
Postabdominal claw with stout proximal
pecten (pp) and very fine distal pecten (dp) [better seen under scope];
sensory
bristle (b) near midpoint between eye (e) and tip of rostrum (tr)
Postabdominal
claw with proximal pecten (pp)only; sensory bristle (b) near tip of rostrum
(tr) [near or at base of antennule].