Devo grahami, Lowry & Stoddart, 2002

Lowry, J. K. & Stoddart, H. E., 2002, The Amaryllididae of Australia (Crustacea: Amphipoda: Lysianassoidea), Records of the Australian Museum 54, pp. 129-214: 204-209

publication ID

2201-4349

persistent identifier

http://treatment.plazi.org/id/783187C3-FF8E-FFCD-18E7-F1A394C1F85C

treatment provided by

Felipe

scientific name

Devo grahami
status

n.sp.

Devo grahami   n.sp.

Figs. 73–75, Plate 1c

Type material. HOLOTYPE, female, 7.7 mm, ovigerous (8 eggs), AM P36872 View Materials ; 1   PARATYPE, male, 9.3 mm, AM P36873 View Materials   ; 5 PARATYPES, AM P36874 View Materials   ; E of Broken Bay , New South Wales, Australia, 33°31'S 152°08'E to 33°33'S 152°07'E, 914 m, dredge GoogleMaps   , R. T. Springthorpe, 10 December 1980, FRV Kapala   , stn K80-20-8. 5   PARATYPES, AM P56969 View Materials , E of Broken Bay , NSW, Australia, 33°29'S 152°12'E to 33°27'S 152°14'E, 1143– 1200 m, beam trawl GoogleMaps   , R. T. Springthorpe , 12 February 1986, FRV Kapala   , stn K86-01-09. 5   PARATYPES (4 males, 1 female), AM P36875 View Materials , E of Broken Bay , NSW, Australia, 33°30'S 152°12'E GoogleMaps   to 33°33'S 152°09'E, 1036–1049 m, R. T. Springthorpe , 12 February 1986, Kapala   , stn K86-01-10. 1   PARATYPE, female, AM P36876 View Materials , SE of Broken Bay , NSW, Australia, 33°41'S 152°01'E, 1125 m, epibenthic sled, 11 December 1978, FRV Kapala   , stn K78-27-03. 1 GoogleMaps   PARATYPE, immature male, 7.0 mm, AM P36877 View Materials , E of Port Jackson , NSW, Australia, 33°48'S 151°52'E, 549 m, sled/dredge, 3 December 1979, FRV Kapala   , stn K79-20-02. 2 GoogleMaps   PARATYPES (1 mature male, 1 immature male), NMV J48792 View Materials   ; 54 km ESE of Nowra , NSW, Australia, 34°52.72'S 151°15.04'E, 996 m, mud, fine sand, fine shell, epibenthic sled, G.C.B. Poore et al., 22 October 1988 GoogleMaps   , RV Franklin , stn   SLOPE 53   .

Additional material. Two specimens, AM P56970 View Materials   , E of Cape York, Australia, Coral Sea , 10°32.72'S 144°12.8'E, epibenthic sled, 780–795 m, P. Hutchings et al., 20 August 1988, RV GoogleMaps   Franklin , stn 06/88-03. 1 specimen + fragment, NMV J48791 View Materials   , S of Point Hicks , Victoria, 38°21.90'S 149°20.00'E, 1000 m, epibenthic sled, G.C.B. Poore et al., 23 July 1986, RV GoogleMaps   Franklin , stn SLOPE 32   . 1 specimen, NMV J48790 View Materials   , S of Point Hicks , Victoria, 38°19.10'S 149°14.30'E, 600 m, coarse sand, epibenthic sled, M.F. Gomon et al., 24 July 1986, RV GoogleMaps   Franklin , stn SLOPE 39   . 19 specimens, NMV J48789 View Materials , 76 View Materials   km S of Point Hicks , Victoria, 38°29.33'S 149°19.98'E, 1840 m, sandy mud, fine shell, epibenthic sled, G.C.B. Poore et al., 26 October 1988, RV GoogleMaps   Franklin , stn SLOPE 69   . 4 specimens, NMV J48788 View Materials   , off Freycinet Peninsula , Tasmania, 42°2.20'S 148°38.70'E, 800 m, coarse shelly sand, epibenthic sled, M.F. Gomon et al., 27 July 1986, RV GoogleMaps   Franklin , stn SLOPE 45   . 5 specimens, NMV J48787 View Materials   , off Freycinet Peninsula , Tasmania, 42°0.20'S 148°37.70'E, 720 m, coarse shelly sand, epibenthic sled, M.F. Gomon et al., 27 July 1986, RV GoogleMaps   Franklin , stn SLOPE 46   .

Type locality. East of Broken Bay , NSW, Australia, Tasman Sea, 33°31'S 152°08'E GoogleMaps   to 33°33'S 152°07'E, 914 m depth.

Description. Based on holotype female, 7.7 mm, AM P36872 View Materials . Head much deeper than long, anterior margin with notch; rostrum present, cone-shaped; eye present, elongate,

paratype immature male, 7.4 mm, NMV J48793 View Materials ; off Cape Tourville, Tasmania. Scales for A1, A2 represent 0.2  

mm; remainder represent 0.1 mm.

oval. Antenna 1 peduncular article 1 ball-shaped proximally, distal margin with well-developed medial spine; peduncular article 2 long, length 5× breadth; flagellum without callynophore, calceoli absent. Antenna 2 flagellum about as long as that of antenna 1, without calceoli. Mouthpart bundle subquadrate. Epistome/upper lip almost straight (lateral view). 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 (1.3×); propodus, posterior margin with robust setae. Gnathopod 2 palm acute, without lateral robust setae, 1 medial robust seta. Pereopods 3 and 4 merus and carpus without setal fringe. Pereopod 4 coxa with anterior margin slightly   paratype immature male, 7.4 mm, NMV J48793 View Materials ; off Cape Tourville, Tasmania. Scales represent 0.2 mm. obtuse, posterior margin straight, anteroventral corner subquadrate. 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 curved   .

Epimeron 3 posterior margin smooth, with notch immediately above acute posteroventral corner. Uropod 1 peduncle dorsolateral margin with 12 robust setae; outer ramus without large spines between robust setae. Uropod 2 inner ramus moderately constricted. Uropod 3 rami lanceolate; with a few plumose setae; outer ramus 2- articulate. Telson slightly cleft   (about 30%).

Male (sexually dimorphic characters). Based on paratype male, 9.3 mm, AM P36873 View Materials . Antenna 1 flagellum with callynophore, with calceoli. Mandible palp article 2 with 11 posterodistal setae. Pereopods 3 and 4 merus and carpus with setal fringe. Uropod 3 rami with plumose setae   .

Etymology. Named for Ken Graham, fisheries biologist on the FRV Kapala   , who helped immensely over the years in collecting amphipods and other invertebrates during the cruises of the Kapala   .

Remarks. Devo grahami   is very similar to D. dubuc   but is distinguished by the notch on the anterior margin of the head not extended into a slit, and by plumose setae present on uropod 3 of the female.

Habitat. Devo grahami   has been collected on fine and coarse sediment bottoms.

Distribution. Southeastern Australia, Tasman Sea; 549– 1840 m depth.

AM

Australian Museum

R

Departamento de Geologia, Universidad de Chile

T

Tavera, Department of Geology and Geophysics

NMV

Museum Victoria

RV

Collection of Leptospira Strains