Ceradocus serratus ( Bate, 1862 )

Hughes, Lauren E., 2016, New genera, species and records of Maeridae from Australian Waters: Austromaera, Ceradocus, Glossomaera, Hamimaera, Huonella gen. nov., Linguimaera and Maeraceterus gen. nov. (Crustacea: Amphipoda), Zootaxa 4115 (1), pp. 1-81 : 24-28

Ceradocus serratus ( Bate, 1862)

( Figs 12–16 )

Megamaera serrata Bate, 1862: 226 , pl. 39, fig. 5.

Moera spinosa Haswell, 1879a: 268 , pl.10, fig. 5.— Haswell, 1882: 257.— Haswell, 1885: 105, figs 5–12 (part).

Ceradocus rubromaculatus .— Della Valle, 1893: 720 (in part).— Stebbing, 1906: 431 (in part).

Maera spinosa . Stebbing, 1910a: 642.

Ceradocus (Denticeradocus) serrata .— Sheard, 1939: 285, figs 4, 5a–m.

Ceradocus serratus .— J.L. Barnard, 1972a: 221, figs 130–131.— Ledoyer, 1979: 66, fig. 36.—Ledoyer, 1982: 440, fig. 165.— Barnard & Barnard, 1983: 616.— Lowry & Stoddart, 2003: 176 (catalogue).— Krapp-Schickel & Vader, 2009: 2061 –2065 (key).— Ren, 2012: 190, fig. 82.

Material examined. Christmas Island: 1 male specimen, 7.0 mm, dissected, 4 slides, AM P.92499, dive site ″ Million Dollar Bommie ″ (10°27′22″S 105°38′11″E), 12 m, coarse rubble, 18 October 2008, coll. J.K. Lowry (MI WA866); many specimens, AM P.81805, dive site ″ Million Dollar Bommie ″ (10°27′22″S 105°38′11″E), 12 m, coarse rubble, 18 October 2008, coll. J.K. Lowry (MI WA866) ; 1 specimen (damaged anterior half only), AM P.81806, dive site ″ Million Dollar Bommie ″ (10°27′22″S 105°38′11″E), 14 m, coral Acropora sp. with tufted algae, sand and red algae, 18 October 2008, coll. J.K. Lowry and K.B. Attwood (MI WA 867) ; 1 female specimen, AM P.81807, Winnifred Beach (10°29′48″S 105°32′44″E), 12.3 m, sand, 21 October 2008, hand collected on SCUBA, coll. K.B. Attwood (MI WA 909).

Cocos (Keeling) Islands: 1 male specimen, 6.1 mm, dissected, 4 slides, AM P.92247, dive site ″ Cabbage Patch ″, near Horsburgh Island (12°05′45″S 96°50′32″E), 10 m, rubble, 11 October 2008, coll. J.K. Lowry (MI WA 826) ; 13 specimens, AM P.81810, dive site ″ Cabbage Patch ″, near Horsburgh Island (12°05′45″S 96°50′32″E), 10 m, rubble, 11 October 2008, coll. J.K. Lowry, (MI WA 826) ; 1 specimen, AM P.81811, dive site ″ Manta Ray Corner ″, west of Direction Island (12°05′21″S 96°52′23″E), 13.6 m, coarse rubble, 8 October 2008, coll. L.E. Hughes and K.B. Attwood (MI WA 791) ; 1 specimen, AM P.81809, off West Island Jetty (12°05′15″S 96°50′14″E), 1.5 m, rubble, 14 October 2008, coll. L.E. Hughes (MI WA 843).

New South Wales: 3 specimens, AM P.83391, Jervis Bay (35°06′49″S 150°44′39″E), 19.4 m, 25 June 2008, coll. Geoscience Australia and M. McArthur (GA0312/JB_23) ; 3 specimens, AM P.77081, north east side of Little Broughton Island, north east of Port Stephens (32°37′43″S 152°18′56″E), 16.8 m, under stones, 11 March 2006, coll. P.B. Berents ( NSW 2973 ) ; 2 specimens, AM P.77097, sewage pipeline, Nelson Bay, Port Stephens (32°43′11″S 152°08′28″E), 10 m, mass of intertwined dead algae, 15 March 2006, coll. C. Fraser ( NSW 3042 ) ; 8 specimens, AM P.77095, sewage pipeline, Nelson Bay, Port Stephens (32°43′11″S 152°08′28″E), 10.9 m, bottom growth, 15 March 2006, coll. K.B. Attwood ( NSW 3038 ) ; 1 specimen, AM P.62904, north west side of Toomeree Headland, Port Stephens (32°42′07″S 152°10′31″E), 11 m, macroalga Ecklonia sp. and mixed algae, 1 June 1998, coll. R.A. Evans ( NSW 1500 ) ; 1 specimen, AM P.82943, north east of Port Stephens, south west side of Looking Glass Isle , Broughton Island (32°37′43″S 152°18′56″E), 16.3 m, hand collected on SCUBA, 13 March 2006, coll. R.T. Springthorpe (MI NSW 2983 ) .

Tasmania: 3 specimens, AM P.88451, Hobart (42°52′S 147°19′E), unknown depth, 17 March 2009, coll. A. Davey ; 1 specimen, AM P.88450, Burnie (41°04′S 145°54′E), unknown depth, 1 March 2005, coll. A. Davey ; 2 specimens, AM P. 83568, 100 m north of Fleurieu Point, Freycinet Peninsula (42°10′S 148°15′E) , 10 m, coarse shell and sand, 30 April 1991, coll. S.J. Keable and R.T. Springthorpe (TAS 314); 3 specimens, AM P. 83569, 100 m north of Fleurieu Point, Freycinet Peninsula (42°10′S 148°15′E) , 10 m, green algae and some green alga Halophila sp., 30 April 1991, coll. S.J. Keable and R.T. Springthorpe (TAS 322).

South Australia: 3 specimens, AM P.83469, American River Inlet, Muston Point , Kangaroo Island (35°47′S 137°46′E), 4–5 m, clumps of sponge in channel below wharf, 2 February 1979, coll. P.A. Hutchings (SA 56) ; 3 specimens, SAMA C6453, Corny Point (34°53′47″S 137°00′38″E), January 1926 ; 1 specimen, SAMA C6586, Edithburg Jetty, Yorke Peninsula (35°06′05″S 137°43′59″E), under rocks, 17 May 2006, coll. K.L. Gowlett- Holmes ; 1 specimen, SAMA C6454, 20 km due west of Outer Harbour , Gulf of St Vincent (34°46′47″S 138°28′50″E), 23–25 m, 18 April 1975, coll. J McPhalain, (quadrant G2) ; 1 specimen, SAMA C6636, 20 km due west of Outer Harbour , Gulf of St Vincent (34°46′47″S 138°28′50″E), 23–25 m, 17 April 1975, coll. J. McPhalain, G6 ; 1 specimen, SAMA C6451, northwest point of Marum Island, Sir Joseph Banks Group (34°31′00″S 137°15′00″E), reef sand pockets and seagrass Posidonia sp., 23 January 1986, coll. W. Zeidler and K. Gowlett- Holmes; 10+ specimens, SAMA C7865, west of Aldinga , Gulf of St Vincent (33°16′00″S 138°26′59″E), 38–41 m, in prawn trawl, 8 May 1987, coll. K.L. Gowlett-Homes and S. Corigliano, FV Rivoli Queen ; 1 specimen, NMV J46912 , Tiparra Reef, Tiparra Bay (34°04′00″S 137°23′00″E), 5 m, 15 March 1985 (SA 16).

Western Australia: 1 specimen, AM P.79850, off end of South Mole , Arthur Head, Fremantle (32°03′S 115°44′E), 6 m, spirorbid tube worms, 25 December 1983 , coll. J.K. Lowry (WA 283); many specimens, AM P.79849, off end of South Mole , Arthur Head, Fremantle (32°03′S 115°44′E), 6 m, sponge, detritus, epizoic, green alga Caulerpa sp., 25 December 1983 , coll. J.K. Lowry (WA 287); 1 specimen, AM P. 79380, 500 m off Chinamans Rock , Kalbarri (27°42′S 114°09′E), 6 m, rocky bottom, curly brown plus coralline algae, 10 January 1984 , coll. J.K. Lowry (WA 459); 1 specimen, AM P.79851, near Mistaken Island, Vancouver Peninsula , King George Sound (35°04′S 117°56′E), 6 m, seagrass, 13 December 1983 , coll. R.T. Springthorpe (WA 121); 7 specimens, AM P.79312, rocks near Migo Island, Port Harding , Torbay Bay (35°04′S 117°39′E), 6–7 m, green alga Caulerpa sp. and detritus, 15 December 1983 , coll. J.K. Lowry (WA 144); 5 specimens, NMV J57178 , North Lumps , 2 km off Mullaloo (31°47′18″S 115°42′48″E), 7 m, 2 May 1986 ( SWA 113 ) ; 1 specimen, NMV J57169 , Seven Mile Beach , North of Dongara (29°12′00″S 114°53′00″E), 22 April 1986, 1 m ( SWA 83 ) ; 1 specimen, NMV J57177 , North Lumps , 2 km off Mullaloo (31°47′18″S 115°42′48″E), 8 m, 2 May 1987 ( SWA 112 ) ; 1 specimen, NMV J57168 , Cliff Head , 30 km south of Dongara (29°32′00″S 114°59′00″E), 3 m, 22 April 1986 ( SWA 84 ) ; 1 specimen, NMV J57176 East of Wreck Rock (31°47′54″S 115°42′48″E), 3 m, 2 March 1986 ( SWA 115 ) .

Type locality. Flinders and Hummock Islands, Bass Strait.

Distribution. Indian Ocean, Cocos (Keeling) Islands; Christmas Island (current study). Australia. New South Wales: Split Solitary Island; Port Stephens; Port Jackson; Merimbula; Twofold Bay; Jervis Bay ( J.L. Barnard 1972a; current study). Victoria: Shoreham; Port Phillip Bay ( J.L. Barnard 1972a). Tasmania: Flinders and Hummock Islands, Bass Strait ( Bate, 1862). South Australia: Kangaroo Island; Spencer Gulf; Yorke Peninsula; Outer Harbour; Sir Joseph Banks Group; Tiparra (current study). Western Australia: Kalbarri; Fremantle; King George Sound; Torbay Bay, Dongara, Mullaloo (current study). Madagascar. ( Ledoyer 1979; 1982).

Figures

FIGURE 12. Ceradocus serratus (Bate, 1862), AM P. 62904, north west side of Toomeree Headland, Port Stephens, New South Wales. Image by Roger Springthorpe, Australian Museum.

FIGURE 13. Ceradocus serratus (Bate, 1862), male, habitus, 7.0 mm, AM P. 92499, dive site " Million Dollar Bommie ", Christmas Island.

FIGURE 14. Ceradocus serratus (Bate, 1862), male, 7.0 mm, AM P. 92499, dive site " Million Dollar Bommie ", Christmas Island, scales 0.1 mm.

FIGURE 15. Ceradocus serratus (Bate, 1862), male, 7.0 mm, AM P. 92499, dive site " Million Dollar Bommie ", Christmas Island, scales 0.1 mm.

FIGURE 16. Ceradocus serratus (Bate, 1862), male, 6.1 mm, AM P. 92247, Horsburgh Island, Cocos (Keeling) Islands, scales 0.1 mm.