CRUSTACEA. 
491 
Eurynome aspera. — The Rough Eurynome. 
Plate XCIV. fig. 1. 
Back having eight tubercles more prominent than the rest, 
with hairy margins; and the sides with four lamellae ; anterior 
legs and thighs with tubercles. Inhabits the British seas. 
Genus 32.—H Y A S. — Leach. 
Generic Character. —Shell elongated, subtriangular, and sub- 
tuberculated, the sides in rear of the eyes produced into a lance¬ 
olate projection; rostrum with a fissure, and approximate laci- 
uioe; first joint of external antennae dilated, and larger than the 
second ; anterior feet*jaws with the second joint emarginate at 
the internal apex. 
Hyas araneus. — The Sand Hyas. 
Plate XCIV. fig. 2. 
Pointed in front, widening towards the posterior parts, 
covered with small tubercles; legs very long, the forcep claws 
thicker and shorter than the others. Inhabits the coasts of 
Britain. 
TRIBE VI.-NOTOPODA. 
With the two or four hind feet inserted on the back, or 
above the line of the others_There are four genera : 38. Dro- 
mia; 39. Homola; 40. Dorippe ; 41. Ranino. 
Section II. — Macroura. 
TRIBE I.-HIPPIDES. 
With the two anterior feet tapering to their extremity, and 
acute, sometimes provided with a monodactylous hand, with or 
without a claw ; the six following having a fin-shaped last joint, 
the last two folded back and short; the last segment of the ab¬ 
domen elongated, with a foliaceous appendage on either side. — 
The following genera are of this tribe: 42. Albunea; 43. 
Hippa; and, 
Genus 44. — REMIPE S. — Latreille. 
Generic Character. —The intermediate and lateral antennas 
short, bent, and nearly of equal length; exterior feet-jaws 
