[4] Other species may have a slightly curved rostrum, but then the teeth on its dorsal surface continue into the distal third, which is untoothed in P.
[10] P. serratus is pinkish brown, with reddish patterns, and is typically 100 millimetres (3.9 in) long, making it the largest of the native shrimp and prawns around the British Isles.
[11] Palaemon serratus is one of the few invertebrates to have its hearing studied in detail; it is sensitive to frequencies between 100 Hz and 3 kHz, with an acuity similar to that of generalist fish.
A peak landing of 548 t was recorded in 1999, and four counties account for over 90% of the catch — Galway, Kerry, Cork and Waterford.
[16] There is now concern that the current levels of exploitation may represent overfishing, and measures are being considered to limit the catch, such as a minimum landing size.