Kerguelenia euroka, Lowry & Stoddart, 2010

Lowry, J. K. & Stoddart, H. E., 2010, Kergueleniidae fam. nov. (Crustacea: Amphipoda: Lysianassoidea) in Australian waters, Zootaxa 2564 (1), pp. 1-30 : 15-16

publication ID 10.11646/zootaxa.2329.1.3


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scientific name

Kerguelenia euroka

sp. nov.

Kerguelenia euroka sp. nov.

( Figs 13–15 View FIGURE 13 View FIGURE 14 View FIGURE 15 )

Type material. HOLOTYPE, female, ovigerous (2 eggs), 3.8 mm, AM P.69003, east of Long Reef Point , New South Wales, Australia, 33°46’S 151°43’E, 176 m, dredged, 5 December 1977, FRV Kapala , stn K-77- 23-01 GoogleMaps . PARATYPES: 1 female, 3.4 mm, AM P.69004, type locality; 1 female, 2.5 mm, AM P.69005, east of Merimbula , New South Wales, Australia, 36°52.5’S 150°18.1’E, 149–152 m, trawl, 4 September 1994, P.B. Berents, FRV Southern Surveyor, stn 05/94/145 GoogleMaps ; 1 female, 2.4 mm, MV J61503 View Materials , 66 km south of Rodondo Island , central Bass Strait, Australia, 39°48.6'S 146°18.8'E, 82 m, sand, silt and mud, epibenthic sled, 13 November 1981, R. Wilson, RV Tangaroa , stn BSS 158S GoogleMaps ; 1 female, 2.8 mm, MV J61504 View Materials , 6 km west of Currie , King Island, western Bass Strait, Australia, 39°54.7'S 143°43.4'E, 49 m, coarse sand, 21 November 1981, R. Wilson, RV Tangaroa , stn BSS 196 GoogleMaps .

Type locality. East of Long Reef Point , New South Wales, Australia, 33°46’S 151°43’E, 176 m depth GoogleMaps .

Etymology. Named for the paddle steamer Euroka wrecked off Long Reef in 1913.

Diagnostic description. Antenna 1 peduncular article 1 not or only slightly produced dorsodistally. Mandible incisor absent; left lacinia mobilis absent; accessory spine row absent; molar absent. Maxilla 1 outer plate with 3 setal-teeth, most setal-teeth without cusps; palp 2-articulate. Maxilliped palp article 2 longer than broad, length 1.5 x breadth. Gnathopod 1 basis margins subparallel; ischium long, length 3.7 x breadth; carpus long, length 2.4 x breadth, subequal to (1 x) propodus; propodus tapered distally, length 3.4 x breadth. Pereopods 3 and 4 propodus with short distal locking seta. Pereopod 5 basis linear, without posteroventral lobe; merus strongly expanded posteriorly. Pereopod 7 basis with posteroventral lobe extending beyond merus; merus posteroventral lobe extending beyond carpus. Pleonite 3 without dorsodistal boss. Epimeron 3 posteroventral corner narrowly rounded. Uropod 1 rami without robust setae. Uropod 3 rami absent. Telson shorter than broad.

Remarks. Kerguelenia euroka belongs to a group of species ( K. adeliensis , K. antarctica , K. compacta , K. kawatiri and K. macropoda ) in which the basis of pereopod 5 is linear. It is most similar to K. macropoda from Madagascar but can be distinguished from that species by the greater size of pereopod 5 merus and the more distal production of the posteroventral lobe of pereopod 7 merus.

The holotype female, although ovigerous, has no oostegites.

Distribution. South-eastern Australia, in 49–176 m depth.

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