S.I. Smith, 1874 — Generic features: antennal scale short, oval,
apex round, setose all round. Third thoracic endopods large,
carpus and propodus fused, swollen, undivided, with a powerful
subchela. Labrum normal (= not drawn out into a spine). Males
with the pleopods rudimentary and a long, tubular genital organ.
Sternal processes present on thoracic somites of male. Telson
without long apical spines and a small cleft; margins convex.
Female with two pairs of incubatory lamellae arising from the
last two pairs of thoracic limbs. — Species. General form
somewhat robust. Carapace short and broad in dorsal view;
anterior end not produced into a definite rostrum, bluntly
rounded; deeply emarginate posteriorly, leaving the last two
thoracic somites exposed in dorsal view. Antennular peduncle
strong and extending forward to the distal end of the antennal
scale; inner flagellum short, outer flagellum much thicker and
longer than the inner; setose lobe in the male rudimentary,
consisting of a small ridge, bearing a