Ceradocus yandala Berents, 1983

Krapp-Schickel, Traudl, 2009, Maeridae, the Ceradocus group *, Zootaxa 2260 (1), pp. 598-642 : 612-614

Ceradocus yandala Berents, 1983

( Fig. 11 )

Ceradocus yandala Berents, 1983: 109 , figs 7, 8. — Lowry & Stoddart, 2003: 176.

Material examined. 2 females, AM P70598 ( QLD 1622 ) ; 3 males, AM P71020 (2 slides) ( QLD 1709 ) ; 1 adult, AM P71296 ( QLD 1765 ) .

Type locality. Mermaid Cove , Lizard Island, Great Barrier Reef, Australia (14°38.84’S 145°27.24’E) .

Description. Based on male, 4.5 mm, AM P71020.

Head. Head subocular notch present. Antenna 1 peduncular article 2 longer than article 1; accessory flagellum with 3 articles. Antenna 2 article 4 longer than article 5. Mandible palp article 1 with distal acute prolongation; article 3 less than half article 2.

Pereon. Gnathopod 1 carpus and propodus subequal. Gnathopod 2 asymmetrical, large gnathopod palm transverse or nearly transverse, with rectangular excavation medially, propodus length 1.7 x width; small gnathopod palm oblique, smooth, ratio of small propodus length to width similar to that of the larger one.

Pleon. Pleosomite 1 with large mediodorsal spine. Pleosomite 2 lacking spine. Epimeron 1 posterodorsal margin serrated, posteroventral margin smooth, ventral margin with few incisions. Epimeron 2 posterodorsal margin serrated, posteroventral margin smooth, ventral margin with few incisions. Epimeron 3 dorsal, posteroventral and ventral margins serrated. Telson lateral setae present, those on inner margins very short, 2 subdistal, long robust setae.

Female (sexually dimorphic characters). Based on female, AM P70598. Gnathopod 2 with shallower incision in the middle of palm, and palmar corner wider, otherwise shape of propodus similar.

Habitat. Coral rubble, patches between coral or sand bommies, sponges, 3– 10 m.

Remarks. This species is easy to distinguish from others by the subovate propodus of male gnathopod 2 and small body size.

Distribution. Australia. Queensland: Lizard Island ( Berents 1983, current study).

Figures

FIGURE 11. Ceradocus yandala Berents, 1983, male, 4.5 mm, AM P71020, north-east of North Point, Lizard Island, Great Barrier Reef.