Apocuma, JONES, 1973

Haye, Pilar A., 2007, Systematics of the genera of Bodotriidae (Crustacea: Cumacea), Zoological Journal of the Linnean Society 151 (1), pp. 1-58 : 23

publication ID

https://doi.org/ 10.1111/j.1096-3642.2007.00322.x

DOI

https://doi.org/10.5281/zenodo.10544873

persistent identifier

https://treatment.plazi.org/id/95193848-FFCD-FFF5-FEC1-FB15E02F1672

treatment provided by

Felipe

scientific name

Apocuma
status

 

APOCUMA JONES, 1973 View in CoL

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).

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Cumacea

Family

Bodotriidae

Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF