Agononida indocerta Poore & Andreakis, 2012

Poore, Gary C. B. & Andreakis, Nikos, 2014, More species of the Agononida incerta complex revealed by molecules and morphology (Crustacea: Decapoda: Anomura: Munididae), Zootaxa 3860 (3), pp. 201-225 : 210

publication ID

https://doi.org/ 10.11646/zootaxa.3860.3.1

publication LSID

lsid:zoobank.org:pub:46E66BEA-2679-42AF-B5EC-322D773B52F7

DOI

https://doi.org/10.5281/zenodo.3511444

persistent identifier

https://treatment.plazi.org/id/03919450-8B77-FF95-1F89-02AFFC74F802

treatment provided by

Plazi

scientific name

Agononida indocerta Poore & Andreakis, 2012
status

 

Agononida indocerta Poore & Andreakis, 2012

( Figs 2 View FIGURE 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 View Cited Treatment –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 View FIGURE 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 View FIGURE 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.

NEW

University of Newcastle

MNHN

Museum National d'Histoire Naturelle

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Decapoda

Family

Galatheidae

Genus

Agononida

Loc

Agononida indocerta Poore & Andreakis, 2012

Poore, Gary C. B. & Andreakis, Nikos 2014
2014
Loc

Agononida indocerta

Poore 2012: 19
2012
Loc

Agononida

Poore 2008: 18
Jones 2002: 135
2002
Loc

Munida incerta

Jones 1994: 135
1994
GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF