postorbital spine
See: carapace spine (e) [Martin, 2005].
Spine situated near the orbital margin posterior to the antennal spine (Fig. 2A) [Perez Farfante and Kensley, 1997].
The hindmost spine or tooth on the orbital margin in the Oxyrhyncha [Ingle, 1983].
(Order Decapoda):
See: carapace spines (e) [McLaughlin, 1980].
(Order Decapoda):
In shrimp-like (natantian) decapod, anteriorly directed, spine-like projection somewhat behind orbit on each side of carapace [Stachowitsch, 1992].

Crustacea glossary. . 2011.

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