Agononida indocerta Poore & Andreakis 2012
Creators: name: Poore, Gary C. B.
name: Andreakis, Nikos
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Galatheidae
Agononida
Agononida indocerta

description: Agononida indocerta Poore & Andreakis, 2012
(Figs 2 d, 5)
? Munida incerta.— Tirmizi & Javed 1963: 100, figs 43, 44. Munida sp.— Jones & Morgan 1994: 135, fig.
Agononida sp. cf. squamosa.— Jones & Morgan 2002: 135, fig. Agononida sp. aff. incerta.— Poore et al. 2008: 18 (part).
Agononida indocerta Poore & Andreakis, 2012: 19 –21, figs 2H–J, 3D, 10.
Material examined. PAPUA NEW GUINEA. NW of Rabaul, New Britain: 04°14'S, 152°17'E, 508 m (BIOPAPUA stn CP3659), MNHN IU- 2011-1137* (2 males, 1 female). Seamount S of Manus I.: 03°04'S, 147°32'E, 402–640 m (BIOPAPUA stn DW3688), MNHN IU- 2011-1648 (2 females).
Diagnosis. Telson anterolateral margin concave over anterior 70–75%, smooth initially and becoming microtuberculate, with dorsal sharp secondary ridge more obvious in larger specimens; posterior quarter not separated from anterior section by deep notch, with irregular crenellate margin, widest well anterior to transverse suture and narrower adjacent to transverse suture. Pereopods 2–4 with dactyli 5.1–5.8 times as long as greatest basal width; robust setae on flexor margin of dactylus of pereopod 2 number 25–50 (median about 35); of pereopod 3, 6–31 (median about 17); and of pereopod 4, 2–19 (median about 10). Pereopod 4 merus usually with spines proximally on upper face. (Poore & Andreakis 2012)
Colour. Pattern persists on all material from PNG and is the same as in the Western Australian specimen illustrated by Poore & Andreakis (2012: Fig. 3 D): pereopods 1–4 with a subdistal transverse orange band on the merus and a distal transverse orange band on the carpus; pereopod 1 with a transverse band at the base of the fingers; and pereopods 2–4 propodus with a subdistal transverse band.
Distribution. Western Australia, eastern PNG,?Bay of Bengal; 04°S to 33°S; 390–768 m (median 401 m) depth.
Remarks. The diagnosis is updated to account for more careful observation of the anterolateral margin of the telson. Adult males of A. indocerta are recognisable by the prominent tuberculate posterior lobe on the anterolateral margin of the telson and the concavity of the anterior 70%. The ornamentation is most pronounced in the largest specimens (Fig. 5 a). In all material the anterolateral margin of the telson bears a secondary submarginal ridge, not illustrated in the earlier description of the type specimens. Agononida indocerta was recovered sister to A. vanuacerta together with A. africerta and A. polycerta within clade A. Species of the latter clade are characterized by proximal facial spines usually found on the merus of pereopod 4. In this species the number of spines varies between individuals and sides of the same individual from zero to four.
The new material extends the range of this species from Western Australia to eastern Papua New Guinea. The counts of robust setae on the dactyli of pereopods 2–4 of five specimens from PNG range widely, 11–26, 4–10, 1–4 respectively, at the lower end of the range given for this species by Poore & Andreakis (2012). The record of Munida incerta in the Bay of Bengal by Tirmizi & Javed (1993) may be of A. indocerta, on the basis of telson shape, and is possible given the range of some species in this complex.
description: Published as part of Poore, Gary C. B. & Andreakis, Nikos, 2014, More species of the Agononida incerta complex revealed by molecules and morphology (Crustacea: Decapoda: Anomura: Munididae), pp. 201-225 in Zootaxa 3860 (3) on page 210, DOI: 10.11646/zootaxa.3860.3.1, http://zenodo.org/record/228955