The Marine Fauna of New Zealand: Isopoda, Aegidae (Crustacea)

Figure 113. Rocinela leptopus sp. nov. Holotype. A, pleopod ; B, pleopod 2; C, left uropod, dorsal view; D, uropodal exopod,
ventral view.
longer propodus on pereopods –3, the broad, anteriorly
rounded rostrum and the pleonite lateral margins
being less produced and acute.
The holotype, while in good condition, is somewhat
brittle, the pleopods breaking up on dissection. In situ
examination indicates that they are similar to others
of the genus.
prey: Not known.
distribution: Known only from the type locality, off
the northeastern coast of South Island.
etymoLogy: Adapted from the Greek words leptos (thin,
slender, delicate) and pous (foot) alluding to the slender
first pereopods.
Rocinela pakari sp. nov. (Figs 4– 8)
materiaL examined: Holotype, ♀ (28 mm, non-ovig.),
Chatham Rise, 25 October 979, 44°26.89’S, 74°54.79’E,
676 m (NIWA 23888).
78
Paratypes. 4♀ (each 20 mm, non-ovig.), 8 mancas
( 3, 4 mm, 6 unmeasured), same data as holotype
(NIWA 23889).
Additional material: ♀ (39 mm, non-ovig, poor condition,
all but one anterior pereopod missing), (Fisheries
Research Division) (NIWA 23890). ♀ (33 mm, ovig,
poor condition, uropods and pleotelson largely absent),
Chatham Rise, 44°34.00’S, 74°06.49’E, 29 October 979,
863–9 0 m (NIWA 2389 ).
desCription: Body 2.5 times as long as greatest width,
widest at pereonite 4, lateral margins subparallel.
Rostral point anteriorly subtruncate. Eyes not medially
united, separated by about 2.5% width of head; each
eye made up of ~ 6 transverse rows of ommatidia, each
row with ~ ommatidia; eye colour black. Pereonite 1
and coxae 2–3 each with posteroventral angle rounded;
coxae 5–7 without oblique carina. Pleon with pleonite
largely concealed by pereonite 7, or visible in dorsal
view; pleonite 4 with posterolateral margins extending
clearly beyond posterior margin of pleonite 5; pleonite