Ar.104 Huenia sp (Arrowhead crab)
Phylum
: Arthropoda
Class : Malacostraca
Order : Decapoda
Family : Epialtidae
Genus
: Huenia
Description:
The carapace elongate triangular in outline, the dorsal surface markedly
depressed and flattish. The gastric region has three tubercles placed in a
triangle, the base forwards; the cardiac region mounted with a conical
tubercle. The antero-lateral border has two lobules, the anterior or hepatic
one being usually smaller and very often quite rudimentary, the posterior or
branchial one being usually laterally produced but it forms sometimes only an angle.
The pseudorostrum is very long and laterally compressed, haired on both
borders. The preocular tooth distinct but no other orbital teeth, the eyes
being non-protected and lodged in circular rudimentary orbits on the lateral
vertical surface of the neck. The female carapace is broader in proportion to
the length, the pseudorostrum being much shorter than that of male, the
preocular tooth placed not far in front of the eyes. The gastric region has
only one median tubercle, the cardiac tubercle not very prominent.
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