Systematics of the genera of Bodotriidae (Crustacea: Cumacea)
Haye, Pilar A.
Zoological Journal of the Linnean Society
2007
2007-09-30
151
1
1
58
7NPF5
JONES, 1973
Jones
1973
[317,582,1228,1252]
Malacostraca
Bodotriidae
Apocuma
Animalia
Cumacea
22
23
Arthropoda
genus
Typespecies: 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 inmales reaching end of pleon. Antenna 2 infemales 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. australiensePetrescu, 2004) 2. A. brasiliense Jones, 1973 3. A. mauritaniense Ledoyer, 1997 4. A. pooreiPetrescu, 2004 Distribution: Atlantic Ocean ( 587–2003 m) and New South Wales, Victoriaand Tasmania( 119–1500 m).