Pycnoplax, Castro, 2007

Castro, Peter, 2007, A reappraisal of the family Goneplacidae MacLeay, 1838 (Crustacea, Decapoda, Brachyura) and revision of the subfamily Goneplacinae, with the description of 10 new genera and 18 new species, Zoosystema 29 (4), pp. 609-774 : 662-663

publication ID

https://doi.org/ 10.5281/zenodo.4525564

DOI

https://doi.org/10.5281/zenodo.4525411

persistent identifier

https://treatment.plazi.org/id/102B87CB-FFB7-2554-FE79-FB59FB89FE99

treatment provided by

Felipe

scientific name

Pycnoplax
status

gen. nov.

KEY TO SPECIES OF PYCNOPLAX View in CoL N. GEN.

1. Two acute, thin, spine-like anterolateral teeth (see Fig. 13B View FIG ) .......... Pycnoplax bispinosa View in CoL

— Two triangular anterolateral teeth which may have acute tips but never thin, spine-like ................................................................................................................................... 2

2. Ambulatory legs (P2-P5) long, relatively slender, distal end of merus of folded P5 extending beyond tip of second anterolateral tooth (see Fig. 13A View FIG ). G2 with pointed tip without terminal spinules (see Guinot 1969a: fig. 74; 1989: fig. 31B; Chen 1984: figs 3-7, 3-8, as Carcinoplax surugensis View in CoL ) ............................................................... Pycnoplax surugensis View in CoL

— Ambulatory legs (P2-P5) relatively short, distal end of merus of folded P5 only reaching or barely reaching tip of second anterolateral tooth. G2 with terminal spinules (see Fig. 16D View FIG ) ................................................................................................................................... 3

3. Leaf-like, granular, shallow tooth on each outer orbital angle (see Figs 16A View FIG ; 17 View FIG ). Short tooth on each suborbital border .............................................. Pycnoplax latifolia View in CoL n. sp.

— Triangular, pointed tooth on each outer orbital angle. Conspicuous tooth on each suborbital border ........................................................................................................................ 4

4. Second anterolateral tooth curved, hook-like, acute tip (see Poore 2004: fig. 140c). Dorsal surface of carapace relatively smooth ......................................... Pycnoplax meridionalis View in CoL

— Second anterolateral tooth triangular, obtuse tip (see Poore 2004: fig. 140d). Two shallow horizontal ridges on dorsal surface of carapace .............................. Pycnoplax victoriensis View in CoL

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