Sympodomma Stebbing 1912
Creators: name: Haye, Pilar A.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Cumacea
Bodotriidae
Sympodomma

description: SYMPODOMMA STEBBING, 1912   
 Type species: Sympodomma diomedeae (Calman, 1912)   
 Body: Carapace shorter than abdomen and variable in length with respect to peraeon; abdomen longer than carapace and peraeon together.   
 Cephalothorax: From dorsal view the carapace appears laterally compressed anteriorly or posteriorly. Carapace with mid-dorsal ridge or mid-dorsal serration and with lateral ridges; may have dorso-lateral, anterior transverse and/or posterior transverse ridges. Pseudorostral lappets do not extend beyond the frontal lobe or slightly extend but do not meet. Antennal notch not distinct, as a depression or as a subacute incision. Anterolateral corner bluntly rounded or with subacute or acute tooth. Frontal lobe from 1/3 to 1/2 of the total carapace length; longer than wide; anteriorly linguiform; with ocular pigment and with eye lenses.   
Antenna 1 with basal article of the peduncle geniculate or straight; as long as or shorter than the other two articles together. Main flagellum bi- or tri-articulated; with second article longer than third; with two aesthetascs in distal-most article; males may have a group of aesthetascs on proximal article. Accessory flagellum uni- or bi-articulated; males may have a brush of setae; with or without aesthetasc. Males with antenna 2 reaching end of pleon.  
Maxilliped 3 basis arcuate or straight; extended dorso-distally over ischium beyond the articulation of the ischium and merus. Ischium as long as or longer than merus. Merus extended dorso-distally over carpus or expanded laterally. Carpus distally widened or oviform; equal to or shorter than propodus and dactylus together. Propodus may be distally widened; with a brush of setae.  
 Peraeon: First peraeonite well exposed, visible only above lateral midline or not visible. Peraeonite 2 may have ventrolateral expansion overriding peraeonite 1 and/or carapace, peraeonite 3 or peraeonite 1 and/or carapace and peraeonite 3. Peraeonite 3 may have ventrolateral expansion extended backwards overriding peraeonite 4 or forward and backwards overriding peraeonites 2 and 4. Peraeonite 4 may have ventrolateral expansion overriding peraeonite 5 or peraeonites 3 and 5.   
Females and males with fully developed exopods on peraeopods 1–3. Peraeopod 1 with basis arcuate or straight, may have row of setae; with or without setae in a linear arrangement along propodus; carpus shorter than propodus. Peraeopod 2 with ischium; dactylus longer than propodus. Peraeopod 4 with ischium.  
 Pleon: Pleonite 6 longer than wide; longer than or as long as peduncle of uropod; may have many small setae on posterior edge of pleonite 6. Whole width of distal end of pleonite 6 slightly or well extended past the insertion of the uropods; ending in a point or a line. Alternatively, wide portion of distal end of pleonite 6 extended between bases of uropods; ending in a line or in a rounded apex. Anal plates may extend posteriorly beyond distal margin of pleonite 6 and may bear setae on posterior margin.   
Uropod endopod bi-articulated; relative length of articles variable. Uropod exopod with proximal article shorter than distal one. Peduncle of uropods longer than or as long as rami; rami approximately same length or endopod shorter or longer than exopod. Males with five pairs of pleopods. Pleopodal endopod with well developed process.  
 Species included:   
 1. S. anomalum (Sars, 1871)   
 2. S. australiense Foxon, 1932   
 3. S. diomedeae (Calman, 1912)   
 4. S. hatagumoanum Gamô, 1969   
 5. S. incertum Hale, 1949   
 6. S. vitreum Lomakina, 1967   
 7. S. weberi (Calman, 1905   
 8. S. whitleyi Hale, 1949   
 Distribution: West Indian Ocean, Indo-West and West Pacific, Australian coasts and South Pacific, from 11 to 1158 m.
description: Published as part of Haye, Pilar A., 2007, Systematics of the genera of Bodotriidae (Crustacea: Cumacea), pp. 1-58 in Zoological Journal of the Linnean Society 151 (1) on page 33, DOI: 10.1111/j.1096-3642.2007.00322.x, http://zenodo.org/record/5428051