Pisidia longimana (Risso, 1816), a junior synonym of P. bluteli (Risso, 1816) (Crustacea: Decapoda: Anomura: Porcellanidae) and a species distinct from P. longicornis (Linnaeus, 1767)

Abstract

Pisidia longimana (Risso, 1816) and P. bluteli (Risso, 1816), both described from Nice, France, have been considered each other’s synonyms or have been validated depending on successive taxonomic opinions. The validity of both in respect to P. longicornis (Linnaeus, 1767) has also been contradicted a number of times. The current lack of clarity in the use of the names P. longicornis, P. longimana and P. bluteli has resulted in nomenclatural instability, but also in unreliability and miscommunication as regards the available ecological and distributional information. The validity of P. bluteli and P. longimana is revisited herein based on a large number of specimens (241 males, 190 females and 33 juveniles) from many different localities. The latter species is confirmed as a junior synonym of the former, whereas P. bluteli and P. longicornis are herein considered separate species. Diagnostic characters and morphological variations are discussed and illustrated.

Decapod Crustacean Records from A Collection of Marine Soft-Bottom Macrofauna of the Italian Waters Supporting the Update of Checklists and Registers of the Mediterranean Basin

“…Macrozoobenthic samples were further sorted into major taxonomical groups, and the collected decapod crustaceans were counted and classified to the lowest possible taxonomic level by professional stereoscopes (Zeiss Discovery.V20; Leica M165C; Leica M216; Zeiss STEMI 2000) with a maximum magnification of 200 times. The guides used in taxonomic identification were from [36][37][38][39][40][41][42][43][44][45][46][47][48][49][50].…”

Biofouling Role in Mariculture Environment Restoration: An Example in the Mar Grande of Taranto (Mediterranean Sea)

“…They were mainly echinoderms and crustaceans collected throughout the entire length of the collector. As regards crustaceans, the anomuran decapod Pisidia bluteli (Risso, 1816) (synonym of P. longimana) and the shrimp Athanas nitescens (Leach, 1814), which are reported to be common on hard artificial reefs and detritic bottoms, especially on oyster and mussel beds (Santelli et al, 2013;Ferreira and Tavares, 2020) was the most abundant species. Amphipods and isopods were also collected in large numbers that include species characteristic of both hard and soft bottom in marine confined areas and lagoons, e.g., Elasmopus rapax (Costa, 1853), Ericthonius punctatus (Spence Bate, 1857), Maera inaequipes (Costa, 1857), Cyathura carinata (Krøyer, 1847), together with hard bottom species associated with ascidians and sponges, e.g., Leucothoe spinicarpa (Abildgaard, 1789), Monocorophium sextonae (Crawford, 1937), and some alien species, e.g., C. scaura and Paracerceis sculpta (Holmes, 1904;Forniz and Sconfietti, 1983;Cantor et al, 2009;Sanchez-Jerez, 2014, 2017).…”

Distribution and Ecology of Decapod Crustaceans in Mediterranean Marine Caves: A Review

“…NIS = non-indigenous species.Atlantic-Mediterranean species typically thrive in the East Atlantic from the English Channel (La Manche) to the North, to Morocco and Mauritania to the South, including Macaronesia (Azores, Madeira and Canary Islands) and the Mediterranean Sea[59,60]. Five decapod species found in Mediterranean caves strictly belong to this category: Eriphia verrucosa, Pachygrapsus marmoratus, Palinurus elephas, Pisidia bluteli-a senior synonym of P. longimana (Risso, 1816) and distinct from the similar P. longicornis (Linnaeus, 1767) according to Ferreira and Tavares[61]-and Scyllarus arctus. Thirteen other species in this category have a wider distribution in the East Atlantic, reaching up to Norway to the North and Cape Verde Islands or even Namibia to the South: Achaeus cranchii, Athanas nitescens, Diogenes pugilator, Dromia personata, Eualus cranchii, E. occultus, Eurynome aspera, Galathea intermedia, Pagurus cuanensis, P. prideaux, Palaemon elegans, Pilumnus hirtellus and Xantho pilipes.Lusitanian species are here defined as those Mediterranean-Atlantic species that are restricted to the Mediterranean and the western European coasts from Portugal to Brittany and do not extend southward[59].…”