Systematics of the genera of Bodotriidae (Crustacea: Cumacea)
Author
Haye, Pilar A.
text
Zoological Journal of the Linnean Society
2007
2007-09-30
151
1
1
58
https://academic.oup.com/zoolinnean/article-lookup/doi/10.1111/j.1096-3642.2007.00322.x
journal article
10.1111/j.1096-3642.2007.00322.x
0024-4082
5428051
APOCUMA
JONES, 1973
Type
species
:
Apocuma brasiliense
Jones, 1973
Body
: Carapace shorter than abdomen and longer than peraeon; abdomen shorter, equal or longer than carapace and peraeon together.
Cephalothorax
: From dorsal view the carapace appears not to be laterally compressed. Carapace may have mid-dorsal, dorso-lateral, lateral and posterior transverse ridges, as well as mid-dorsal serration. Pseudorostral lappets extend beyond frontal lobe and meet in midline. Antennal notch as a depression, subacute or acute incision. Anterolateral corner bluntly rounded or with subacute tooth. Branchial siphons long, extending much beyond pseudorostrum or short, extending just beyond carapace. Frontal lobe 1/4 of carapace length; as wide as long; somewhat extended or anteriorly linguiform; without ocular pigment or eye lenses.
Antenna 1 with basal article of the peduncle arcuate or geniculated; longer than the other two articles together. Main flagellum bi-articulated; with two aes- thetascs in distal-most article. Accessory flagellum uni-articulated, may have a brush of three or more setae. Antenna
2 in
males reaching end of pleon. Antenna
2 in
females with three articles.
Maxilliped 3 basis arcuate or straight; not projected over ischium. Ischium shorter or same length than merus. Merus slightly expanded laterally. Carpus variable in length with respect to propodus and dactylus together.
Peraeon
: Peraeonite 2 with ventrolateral expansion overriding peraeonite 1 and/or carapace and peraeonite 3, or only peraeopod 3. Peraeonite 3 may have ventrolateral expansion extended backwards overlapping peraeonite 4. Peraeonite 4 with ventrolateral expansion overriding peraeonite 5 or peraeonites 3 and 5.
Females with fully developed exopods on peraeopods 1 and 2, and reduced or small exopod on peraeopod 3. Males with fully developed exopods on peraeopods 1– 4. Peraeopod 1 with basis arcuate; carpus with or without row of setae, longer than propodus; dactylus with or without terminal setae. Peraeopod 2 with ischium; dactylus longer than propodus. Peraeopod 4 with ischium.
Pleon
: Pleonite 6 as long as or longer than wide, shorter than peduncle of uropod, may have three setae on posterior edge. Wide portion of distal end of pleonite 6 slightly extended between the bases of the uropods and ending in a line or slight point. Anal plates may extend posteriorly beyond distal margin of pleonite six.
Uropod endopod uni-articulated. Uropod exopod with proximal article shorter than distal one. Peduncle of uropods longer than rami; rami approximately same length or endopod slightly shorter. Males with five pairs of pleopods that do not bear a process.
Species included
:
1.
A. australiense
(
Hale, 1949
)
(Synonymy:
Cumellopsis australiensis
Hale, 1949
;
A. australiense
Petrescu, 2004
)
2.
A. brasiliense
Jones, 1973
3.
A. mauritaniense
Ledoyer, 1997
4.
A. poorei
Petrescu, 2004
Distribution
: Atlantic Ocean (
587–2003 m
) and
New South Wales
,
Victoria
and
Tasmania
(
119–1500 m
).