Randallia laevis ( Borradaile, 1916 )

TAVARES, MARCOS & MENDONÇA, JOEL BRAGA DE JR., 2022, Brachyuran crabs (Crustacea, Decapoda) from the remote oceanic Archipelago Trindade and Martin Vaz, South Atlantic Ocean, Zootaxa 5146 (1), pp. 1-129 : 25

Randallia laevis ( Borradaile, 1916)

( Fig. 11A )

Persephona (Myropsis) laevis Borradaile, 1916: 107 [Type locality: Trindade Island , Brazil].

Trindade specimens. Male holotype, cl 24 mm (not examined). Type in the Natural History Museum, in London (catalog number: 1917.1.29.166).

Comparative material examined. Randalia laevis is only known from the holotype.

Distribution. So far only known from Trindade Island.

Ecological notes. Unknown.

Remarks. The only known specimen of Randallia laevis ( Fig. 11A ), caught during the British Antarctic (“Terra Nova”) Expedition, 1910, was found “Placed in a bottom with Johngarthia lagostoma (as Gecarcinus ) from South Trindade Island, and therefore probably taken near the island. Its condition somewhat suggests its having been picked up dead on the shore.” ( Borradaile 1916).

Figures

FIGURE 11. A, Randallia laevis (Borradaile, 1916), male holotype (cl 24 mm) (after Rathbun 1937). B, C, Acanthonyx petiverii H. Milne Edwards, 1834, juvenile male, cl 4.5 mm, cw 2.8 mm (MZUSP 40671). Semi diagramatic illustrations of the carapace outline and rigtht fifth pereopod propodus and dactylus, lateral view, respectively. Arrows indicate the first branchial lobe inconspicuously developed and the propodus of P5 without the characteristic compressed, dilatated shape. Scales: 1 mm.