Ralumcaris bisquamosa (De Man, 1905 )

Poore, Gary C. B., 2018, Burrowing lobsters mostly from shallow coastal environments in Papua New Guinea (Crustacea: Axiidea: Axiidae, Micheleidae), Memoirs of Museum Victoria 77, pp. 1-14 : 11-12

Ralumcaris bisquamosa (De Man, 1905)

Figs 2e , 6h, i

Axiopsis (Paraxiopsis) bisquamosa De Man, 1905: 597 .—De Man, 1925: 7, 72, 109, pl. 8 fig. 20–20c, pl. 9 fig. 20d–m.— Holthuis, 1953: 51.

Eutrichocheles bisquamosa .— Sakai and de Saint Laurent, 1989: 53, fig. 15.— Kensley, 1994: 822.

Paraxiopsis bisquamosa .— Kensley, 1996: 711, 712.— Kensley, 2003: 372, table 2.

Ralumcaris bisquamosa .— Sakai, 2011: 183–185, figs 33, 34.

Material examined. Papua New Guinea. Madang Province, PAPUA NIUGINI stations. Rempi Area , W of Barag I., 05° 01.2'S, 145° 47.9'E, 5–10 m (stn PD45 ), IU-2013-7130 (male, 2.6 mm). N of Kranket I., 05° 11.3' S, 145° 49.6' E, 5 m (stn PB47 ), IU-2013-7037 (ovigerous female, 3.6 mm). Cape Barschtch, 05° 03.9' S, 145° 48.8' E, 12 m (stn PB27 ), IU-2013-7119 (male, 3.2 mm). Tab I., inner slope, 05° 10.1' S, 145° 50.2' E, 1–4 m (stn PR162), IU-2013-7120 (male, 4.1 mm) .

New Ireland Province, Kavieng region , KAVIENG 2014 stations. Steffen Strait, W side of Wadei I., 02° 39.5' S, 150° 37.7' E, 15 m (stn KS31 ), IU-2014-2451 (juvenile damaged), IU-2016-8135 (juvenile, 2.9 mm). W side of Tsoilaunung I., 02° 32.8' S, 150° 30.8' E, 6 m stn KB48), IU-2014-2619 (ovigerous female, 5.9 mm). Tab I., N.L. Bruce, 05° 10' S, 145° 51' E, NMV J34090 (ovigerous female, 4.2 mm) .

Distribution. Indonesia, Papua New Guinea, Mariana Is; 1–36 m depth.

Remarks. Kensley (1996) pointed out the differences between Paraxiopsis bisquamosa and the remaining species of this genus and excluded the species from Paraxiopsis as redefined by him. Sakai (2011) described and figured De Man’s holotype (ZMA Crust. De. 102.674) but labelled it as ‘lectotype’.

Figures

Figure 2. Parascytoleptus papua Poore and Collins, 2010: a, MNHN IU-2014-2735; b, MNHN IU-2013-7128. Paraxiopsis brocki (De Man, 1888): c, MNHN IU-2013-7108; d, MNHN IU-2014-2736. Ralumcaris bisquamosa (De Man, 1905): e, MNHN IU-2013-7120.Photo credits: AA, b, c, e; TYC, a, d.

Figure 6. Axiopsis serratifrons A. Milne-Edwards, 1873: a, male, MNHN IU-2013-637, anterior carapace, dorsal view. Parascytoleptus papua Poore and Collins, 2010, male, MNHN IU-2013-7128: b, major right cheliped. Paraxiopsis brocki (De Man, 1888), male, MNHN IU-2013-7108: c, anterior carapace, lateral view; d, antenna with scaphocerite; e, cheliped, merus; male, MNHN IU-2014-2736; f, g, pleopods 1, ventral and lateral views. Ralumcaris bisquamosa (De Man, 1905), male, MNHN IU-2013-7120: h, i, anterior carapace, dorsal and lateral views. Scale bars = 1 mm.