Scolopostoma darwinensis, Lowry & Stoddart, 2012

Lowry, J. K. & Stoddart, H. E., 2012, Australian and South African conicostomatine amphipods (Amphipoda: Lysianassoidea: Lysianassidae: Conicostomatinae subfam. nov.), Zootaxa 3248 (1), pp. 43-65 : 56-57

publication ID

https://doi.org/ 10.11646/zootaxa.3248.1.4

DOI

https://doi.org/10.5281/zenodo.5251365

persistent identifier

https://treatment.plazi.org/id/03BD87C9-350A-8D00-FF5C-F9ACF545FA5A

treatment provided by

Felipe

scientific name

Scolopostoma darwinensis
status

sp. nov.

Scolopostoma darwinensis sp. nov.

( Figs 8–10 View FIGURE 8 View FIGURE 9 View FIGURE 10 )

Scolopostoma prionoplax . — Lowry & Stoddart, 1983: 285 (in part, material cited from Port Darwin). —Lowry & Stoddart, 1986: 744. — Lowry & Stoddart, 2003: 170 (Australian record).

Type material. Holotype, female, 4.5 mm, ovigerous (14 eggs), AM P.33816, East Point , Darwin, Northern Territory, Australia, approx. 12°27'S 130°50'E, intertidal, on encrusting ascidian Didemnum psammatodes, J.R. Hanley , 31 August 1981, stn NT-106 GoogleMaps . PARATYPES: 2 females, AM P.69098, same data as Holotype GoogleMaps ; 27 specimens, AM P.69099, west of East Point , Fannie Bay, Darwin, Northern Territory, Australia, 11°24.5’S 130°48.5’E, 8–10 m, didenopsid tunicate, 26 October 1982, J.K. Lowry, stn NT-97 GoogleMaps ; 13 specimens, AM P.69100, Goat Point , Darwin, Northern Territory, Australia, approx. 12°28'S 130°49'E, 6–7 m, from ascidian Didemnum psammatodes , on rock, J. Hooper, 22 December 1982, stn GP 12 [ AM stn NT-107] GoogleMaps ; 1 male, 3.0 mm, AM P.69101, East Point , Darwin, Northern Territory, Australia, approx. 12°27'S 130°50'E, stn EP/9(6) [ AM stn NT-108] GoogleMaps ; 1 male, AM P.69102, Shell Island , Darwin Harbour, Northern Territory, Australia, 12°29.7'S 139°52.7'E, 7 m, encrusting ascidian, Didemnum psammatodes, P. Horner , 3 August 1983, stn SI 1 [ AM stn NT-110] GoogleMaps ; 8 specimens, AM P.69103, Old Man Rock , Darwin Harbour, Northern Territory, Australia, approx. 12º29'S 130º54'E, 2 m, dead sponge, 9 July 1993, G. Edgar GoogleMaps .

Type locality. East Point , Darwin, Northern Territory, Australia, approx. 12°27'S 130°50'E GoogleMaps .

Etymology. The species is named for its type locality.

Diagnosis. Gnathopod 1 carpus subtriangular. Uropod 3 without rami. Telson entire.

Description. Head exposed. Body with many scattered setae; pereon and pleon without dorsal projections. Antenna 1 peduncular article 1 without distal projection; accessory flagellum 2-articulate. Mandible accessory setal row with 3 robust setae; molar absent. Maxilla 1 palp short, 1-articulate. Maxilliped inner plate subrectangular; outer plate subovate, distomedial margin serrate, without distolateral sculpturing; palp 4-articulate.

Coxa 1 subquadrate ventrally. Gnathopod 1 carpus shorter than propodus, subtriangular, anterior margin produced anterodistally; dactylus regular simple. Gnathopod 2 dactylus inserted near anterodistal corner of propodus. Pereopod 7 basis, posteroventral corner rounded.

Urosomite 1 with irregular subquadrate boss. Uropod 1 biramous; rami subequal in length. Uropod 2 biramous; rami subequal in length. Uropod 3 without rami. Telson hemiacetabulate, entire.

Remarks. Ovigerous females have no oostegites.

Distribution. Darwin Harbour, northern Australia; intertidal to 10 m depth.

AM

Australian Museum

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Amphipoda

Family

Conicostomatidae

Genus

Scolopostoma

Loc

Scolopostoma darwinensis

Lowry, J. K. & Stoddart, H. E. 2012
2012
Loc

Scolopostoma prionoplax

Lowry, J. K. & Stoddart, H. E. 2003: 170
Lowry, J. K. & Stoddart, H. E. 1983: 285
1983