Petrolisthes holotrichus Nobili, 1901

Ferreira, Luciane Augusto De Azevedo & Anker, Arthur, 2021, An annotated and illustrated checklist of the porcelain crabs of Panama (Decapoda: Anomura), Zootaxa 5045 (1), pp. 1-154 : 96

Petrolisthes holotrichus Nobili, 1901

( Fig. 58 )

Petrolisthes holotrichus Nobili 1901: 14 ; Haig 1957: 8; Haig 1960: 102, pl. 29, fig. 3; Haig 1968: 66; Gore 1982: 15.

Material examined. Panama [Pacific]: 1 male, cl 4.9, cw 4.7, 1 ov. female, cl 5.3, cw 5.5 ( MZUSP 33958 ), Las Perlas Is ., Isla Contadora, east end of Playa Galeon, rocky shore, low tide, under rocks and in rock crevices, leg. A. Anker, J. Luque, A.R. Palmer & T. Kaji, 16.04.2015 .

Previous records from Panama. Nobili (1901); Haig (1957, 1960, 1968); Gore (1982).

Distribution. East Pacific: El Salvador, Costa Rica, Panama (Bahía Honda in Veraguas, Isla Venao, Amador Causeway near Ciudad de Panamá, Las Perlas Is.), Colombia and Ecuador (Haig 1957, 1960, 1968; Gore 1982; present study).

Ecology. Largely intertidal, possible depth range: 0–2 m; under rocks and in rock crevices ( Haig 1960, 1968; Gore 1982; present study).

Remarks. Petrolisthes holotrichus appears to be uncommon in Panama and was known, prior to Haig’s (1957, 1960) records, only from the type material of Nobili (1901). The species is easily recognisable by its squarish format and “fuzzy” appearance, due to the densely pilose carapace and P1–4 ( Fig. 58 ).

Figures

FIGURE 58. Petrolisthes holotrichus Nobili, 1901: A, B, ovigerous female (cl 5.3 mm, cw 5.5 mm) from Las Perlas Islands, Panama (MZUSP 33958), dorsal (A) and ventral (B) views [photographs by AA].