Petrolisthes zacae Haig, 1968

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 : 122

publication ID	https://doi.org/10.11646/zootaxa.5045.1.1
publication LSID	lsid:zoobank.org:pub:B12C62E3-70D0-4989-BB1A-F4A75C492D8F
DOI	https://doi.org/10.5281/zenodo.5532369
persistent identifier	https://treatment.plazi.org/id/03D62C6B-771A-FFBE-4EF9-5EAEFE70AA3D
treatment provided by	Plazi (2021-09-27 14:34:29, last updated 2023-11-08 03:58:03)
scientific name	Petrolisthes zacae Haig, 1968
status

Treatment

Petrolisthes zacae Haig, 1968 View in CoL

( Figs. 76 View FIGURE 76 , 77 View FIGURE 77 )

Petrolisthes zacae Haig, 1968: 63 View in CoL , fig. 2, tab. 1; Gore & Abele 1976: 25; Abele & Kim 1989: 22; Hiller et al. 2004: 132; Hiller et al. 2006: 554; Lazarus-Agudelo & Cantera-Kintz 2007: 230.

Material examined. None from Panama. Extra-limital material. Colombia [Pacific]: 1 male, cl 4.7, cw 4.2, 1 female, cl 5.9, cw 6.0 (CERBMcr-UV:2009-103), Bahía Málaga, La Sierpe, rocky intertidal near small waterfall, under rocks, leg. J.F. Lazarus-Agudelo, 25.04.2009 (fcn COL-151, COL-152) .

Previous records from Panama. Gore & Abele (1976); Gore (1982); Abele & Kim (1989).

Distribution. East Pacific: Costa Rica, Panama ( Panama Canal area) and Colombia ( Gore & Abele, 1976; Gore, 1982; Hiller et al., 2004).

Ecology. Largely intertidal; on exposed muddy banks of brackish mangrove swamps, dwelling in burrows and depressions in mud; also under rocks in muddy-rocky intertidal, close to waterfalls or creeks ( Gore & Abele 1976; Hiller et al. 2004; present study).

Remarks. Petrolisthes zacae is most closely related to P. robsonae , P. armatus and P. nobilii , sharing with them the carapace not transversely striate; the P1 carpus with teeth on mesial margin; and the P2–P4 meri dorsally armed with spines. According to the molecular analysis of Hiller et al. (2006), P. zacae is sister of P. robsonae , with the eastern Pacific and western Atlantic P. armatus representing in turn their sister clade. Petrolisthes zacae differs from P. robsonae , P. armatus and P. nobilii by the shape of the P2–P4 dactyli: long and slender, with a “thumblike” projection about halfway along ventral (lower) margin, tipped with a movable corneous spinule. This peculiar structure of the ambulatory dactylus is unique within Petrolisthes and likely represents some form of adaptation for living in muddy coditions, i.e. for walking on soft mud ( Haig 1968). The colour pattern of P. zacae ( Figs. 76 View FIGURE 76 , 77 View FIGURE 77 ) is illustrated for the first time.

Genus Pisidia Leach, 1820

References

Abele, L. G. & Kim, W. (1989) The decapod crustaceans of the Panama Canal. Smithsonian Contributions to Zoology, 482, 1 - 50. https: // doi. org / 10.5479 / si. 00810282.482

Gore, R. H. & Abele, L. G. (1976) Shallow water porcelain crabs from the Pacific coast of Panama and adjacent Caribbean waters (Crustacea: Anomura: Porcellanidae). Smithsonian Contributions to Zoology, 237, 1 - 30. https: // doi. org / 10.5479 / si. 00810282.237

Gore, R. H. (1982) Porcellanid crabs from the coasts of Mexico and Central America (Crustacea: Decapoda: Anomura). Smithsonian Contributions to Zoology, 363, 1 - 34. https: // doi. org / 10.5479 / si. 00810282.363

Haig, J. (1968) Eastern Pacific expeditions of the New York Zoological Society. Porcellanid crabs (Crustacea: Anomura) from the west coast of tropical America. Zoologica, New York, 53 (2), 57 - 74.

Hiller, A., Lazarus, J. F. & Werding, B. (2004) New records and range extensions for porcellanid crabs in the eastern Pacific (Crustacea: Anomura: Porcellanidae). In: Hendrickx, M. E. (Ed.), Contributions to the Study of East Pacific Crustaceans. Vol. 3. Instituto de Ciencias del Mar y Limnologia, Universidad de Mexico / UNAM, Ciudad de Mexico, pp. 1 - 12.

Hiller, A., Kraus, H., Almon, M. & Werding, B. (2006) The Petrolisthes galathinus complex: species boundaries based on color pattern, morphology and molecules, and evolutionary interrelationships between the complex and other Porcellanidae (Crustacea: Decapoda: Anomura). Molecular Phylogenetics and Evolution, 40, 547 - 569. https: // doi. org / 10.1016 / j. ympev. 2006.03.030

Lazarus-Agudelo, J. F. & Cantera-Kintz, J. R. (2007) Crustaceos (Crustacea: Sessilia, Stomatopoda, Isopoda, Amphipoda, Decapoda) de Bahia Malaga, Valle del Cauca (Pacifico colombiano). Biota Colombiana, 8 (2), 221 - 239.

Leach, W. E. (1820). Galateadees, Galateadae. (Crust.). In: Cuvier, F. (Ed.), Dictionnaire des sciences naturelles, dans lequel on trait methodiquement des differens etres de la Nature, consideres soit en eux-memes, d'apres l'etat actuel de nos connoissances, soit relativement a l'utilite qu'en peuvent retirer la medecine, l'agriculture, le commerce et les arts. Suivi d'une biographie des plus celebres naturalistes. Ouvrage destine aux medecins, aux agriculteurs, aux commercans, aux artistes, aux manufacturiers, et a tous ceux qui ont interet a connoitre les productions de la nature, leurs caracteres generiques et specifi ques, leur lieu natal, leurs propietes et leurs usages. Vol. 18. F. G. Levrault et Le Normant, Strasbourg and Paris, pp. i-viii + 49 - 56.