Devo dubuc Lowry &amp; Stoddart 2002, n.sp.
Creators: name: Lowry, J. K.
name: Stoddart, H. E.
Publisher: name: Zenodo
Year: 2002
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Amphipoda
Amaryllididae
Devo
Devo dubuc

description: <i>Devo dubuc</i> n.sp. Figs. 71, 72 <b>Type material</b>. HOLOTYPE, female, 7.2 mm, with non-setose oostegites, NMV J48795; 1 PARATYPE, male, 7.5 mm, NMV J48794; 1 PARATYPE, male, 7.4 mm, NMV J48793; 10 PARATYPES, NMV J15795; 10 PARATYPES, AM P58963; 48 km east-north-east of Cape Tourville, Tasmania, Australia, 42°00.25'S 148°43.55'E, 1264 m, gravel with lumps of sandy mud aggregate, epibenthic sled, G.C.B. Poore <i>et al</i>., 30 October 1988, RV <i>Franklin</i>, stn SLOPE 81. <b>Type locality</b>. 48 km east-north-east of Cape Tourville, Tasmania, Australia, 42°00.25'S 148°43.55'E, 1264 m depth. <b>Description</b>. Based on holotype female, 7.2 mm, NMV J48795. <i>Head much deeper than long, anterior margin with notch extended into a slit</i>; rostrum present, cone-shaped; eye apparently absent. Antenna 1 peduncular article 1 ballshaped proximally, distal margin with well-developed medial spine; peduncular article 2 long, length 4.5× breadth; flagellum without callynophore, calceoli absent. Antenna 2 flagellum about as long as that of antenna 1, without calceoli. Mouthpart bundle subquadrate. Mandible lacinia mobilis a stemmed distolaterally cusped blade; accessory setal row with intermediate setae; palp article 2 without posterodistal setae, article 3 without A3-seta. Maxilliped outer plate with distal margin smooth, medial margin without notch. Gnathopod 1 carpus longer than propodus (1.2×); propodus, posterior margin with robust setae. Gnathopod 2 palm acute, without lateral robust setae, with 1 medial robust seta. Pereopods 3 and 4 merus and carpus without setal fringe. <i>Pereopod 4 coxa with anterior margin slightly obtuse, posterior margin straight, anteroventral corner subquadrate</i>. Pereopods 5–7 with distal articles elongate, dactyls long and slender. Pereopod 5 basis expanded posteriorly, rounded. Pereopod 7 basis subrectangular, posteroventral corner rounded, posteroventral margin straight. Epimeron 3 posterior margin smooth, with notch immediately above acute posteroventral corner. Uropod 1 peduncle dorsolateral margin with 11 robust setae; outer ramus without large spines between robust setae. Uropod 2 inner ramus moderately constricted. Uropod 3 rami lanceolate; without plumose setae; outer ramus 2-articulate. Telson moderately cleft (about 40%). <b>Male</b> (sexually dimorphic characters). Based on paratype male, 7.5 mm. Antenna 1 flagellum with callynophore, with calceoli. Mandible palp article 2 with 8 posterodistal setae. Pereopods 3 and 4 merus and carpus with setal fringe. Uropod 3 rami with plumose setae. <b>Etymology</b>. Named for the whaling ship <i>Dubuc</i>, scuttled off Kangaroo Bluff, Bellrieve, in the Derwent River, Tasmania, in November 1808. <b>Remarks</b>. The main difference between <i>D. dubuc</i> and <i>D. grahami</i> is the anterior margin of the head, which has a notch extended into a slit in <i>D. dubuc</i> but only a simple notch in <i>D. grahami</i>. In addition, <i>D. dubuc</i> does not have plumose setae on uropod 3 of the female. <b>Habitat</b>. <i>Devo dubuc</i> is known from only one collection, on a coarse sediment bottom. <b>Distribution</b>. Southeastern Australia, Tasman Sea; 1264 m depth.
description: Published as part of <i>Lowry, J. K. &amp; Stoddart, H. E., 2002, The Amaryllididae of Australia (Crustacea: Amphipoda: Lysianassoidea), pp. 129-214 in Records of the Australian Museum 54</i> on page 204