Kerguelenia matilda, 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 : 24-26

publication ID	https://doi.org/ 10.11646/zootaxa.2329.1.3
persistent identifier	https://treatment.plazi.org/id/F936C54E-0A44-FFF6-8388-F05EFC3D9D8C
treatment provided by	Felipe
scientific name	Kerguelenia matilda
status	sp. nov.

Treatment

Kerguelenia matilda View in CoL sp. nov.

( Figs 25–27 View FIGURE 25 View FIGURE 26 View FIGURE 27 )

Type material. HOLOTYPE, sex not known, probably female, AM P.69012, east of Cape Naturaliste , Tasmania, Australia, 40°45.94’S 149°01.62’E to 40°46.54’S 149°00.27’E, 2400–2500 m, mud and clay, 10 December 1986, R. T. Springthorpe, RV Franklin stn FR1086-04. GoogleMaps

Type locality. East of Cape Naturaliste , Tasmania, Australia, 40°45.94’S 149°01.62’E GoogleMaps to 40°46.54’S 149°00.27’E, 2400–2500 m depth.

Etymology. Named for the wooden schooner Matilda driven ashore in the Furneaux Group during a gale.

Diagnostic description. Antenna 1 peduncular article 1 produced dorsodistally, extending beyond peduncular article 2, apically subacute. Mandible incisor absent; left lacinia mobilis absent; accessory spine row absent; molar absent. Maxilla 1 outer plate with 5 setal-teeth, most setal-teeth cuspidate; palp 2- articulate. Maxilliped palp article 2 longer than broad, length 1.5 x breadth. Gnathopod 1 basis margins subparallel; ischium long, length 3 x breadth; carpus long, length 3.3 x breadth, subequal to (1.1 x) propodus; propodus tapered distally, length 3.2 x breadth. Pereopods 3 and 4 propodus with short distal locking seta. Pereopod 5 basis expanded posteroventrally, with posteroventral lobe; merus moderately expanded posteriorly. Pereopod 7 basis with posteroventral lobe extending about halfway along merus; merus posteroventral lobe extending more than halfway along, but not beyond, carpus. Pleonite 3 with rounded dorsodistal boss. Epimeron 3 posteroventral corner broadly rounded. Uropod 1 rami with robust setae. Uropod 3 biramous; inner ramus about 0.5 x outer ramus; outer ramus 2-articulate. Telson about as long as broad, length about 0.9 x breadth.

Remarks. Kerguelenia matilda shares the character of a strongly produced dorsodistal lobe on peduncular article 1 with K. adeliensis and K. antarctica . Uropod 3 is biramous in both K. adeliensis and K. matilda , but K. matilda is easily distinguished by the subacute shape of the antenna 1 lobe. Distribution. South-eastern Australia, in 2400–2500 m depth.