A review of eastern Atlantic species of the family Parapaguridae (Decapoda, Anomura, Paguroidea)

Lemaitre, Rafael

doi:10.1080/00222939000770141

Cited by 12 publications

(8 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Six species of the Parapaguridae family are now known in Iberian waters, three of them since 1968. Parapagurus nudus and P. abyssorum in the Gulf of Biscay (Saint Laurent 1985), and Paragiopagurus ruticheles in southern Portugal (Lemaitre 1990 as Sympagurus ruticheles). Lemaitre (1989) did a review of the genus Parapagurus in the eastern Atlantic, completing the previous study by Saint Laurent (1972b).…”

Section: Taxonomic Groupsmentioning

confidence: 99%

Updating changes in the Iberian decapod crustacean fauna (excluding crabs) after 50 years

et al. 2019

View full text Add to dashboard Cite

An annotated checklist of the marine decapod crustaceans (excluding crabs) of the Iberian Peninsula has been compiled 50 years after the publication of “Crustáceos decápodos ibéricos” by Zariquiey Álvarez (1968). A total of 293 species belonging to 136 genera and 48 families has been recorded. This information increases by 116 species the total number reported by Zariquiey Álvarez in his posthumous work. The families with the greatest species richness are the Paguridae (28) and Palaemonidae (18). References by geographic sectors and for all species are given. The results show that 264 species are reported in the Atlantic sectors, while 178 have been found in the Mediterranean. The species richness and the differences between and within sectors are discussed; these are mainly due to the dimension of the areas, the depth ranges and the confluence of distinct water masses with a different origin and different physicochemical features. Consequently, the greatest richness of decapod species (excluding crabs) is found in the Gulf of Cádiz, with 194 species. The total number of decapods found in and around Iberian waters, including crabs, freshwater species and some new records not yet published, reaches 448.

show abstract

Section: Taxonomic Groupsmentioning

confidence: 99%

Updating changes in the Iberian decapod crustacean fauna (excluding crabs) after 50 years

et al. 2019

View full text Add to dashboard Cite

show abstract

“…As pointed out by Lemaitre (1990; 1999; 2000), this species is unique among species of Parapagurus in several characters. In P. bouvieri the corneas are weakly dilated, and the overall length of the ocular peduncles are atypically long, being distinctly more than half the length of the shield, whereas in other species of the genus the corneas are reduced, not wider than the distal width of the ocular peduncles, and the ocular peduncles are short, less than half the length of the shield.…”

Section: Resultsmentioning

confidence: 70%

Differentiation of three common deep-water hermit crabs (Crustacea, Decapoda, Anomura, Parapaguridae) from the South African demersal abundance surveys, including the description of a new species of Paragiopagurus Lemaitre, 1996

Landschoff¹,

Lemaitre²

2017

Self Cite

View full text Add to dashboard Cite

Deep-water hermit crabs of the family Parapaguridae can be abundant (up to 20 kg or 1000 hermit crab individuals per haul) in the trawl bycatch collected during South African demersal abundance research surveys. Until recently, only two parapagurid species had been recognized in the bycatch; Parapagurus bouvieri Stebbing, 1910, and Sympagurus dimorphus (Studer, 1883). Detailed examination of numerous samples of parapagurid specimens from research surveys revealed the existence of a third, undescribed species previously confounded with S. dimorphus, but in fact belonging to a different genus. This new species, Paragiopagurus atkinsonae sp. n. is the 25th in the genus Paragiopagurus Lemaitre, 1996, and has been found only in a small region on the West Coast shelf of South Africa, at depths of 199–277 m. The species is herein fully described and illustrated, including colour images, µCT scans of selected body parts, and CO1 barcode data. The new species is morphologically most similar to P. ventilatus Lemaitre, 2004, a species associated with hydrothermal vents, but differs in armature of the fourth antennal segment (armed with a spine on the dorsolateral distal angle vs. unarmed in P. ventilatus); setation of the antennal flagella (nearly naked vs. with dense setae in P. ventilatus); plumose setation on the third maxillipeds and basal segments of chelipeds (absent vs. present in P. ventilatus); number of rows of scales on the propodal rasp of pereopod 4 (two or three rows vs. one row in P. ventilatus); and degree of telson asymmetry (weakly asymmetrical vs. strongly asymmetrical in P. ventilatus). Paragiopagurus atkinsonae sp. n. is superficially similar to S. dimorphus, with males of the two species showing the same extreme degree of sexual dimorphism on the right cheliped, general light orange colouration, and frequent use of colonial zoanthid carcinoecia for pleonal protection. To aid in future identifications and to facilitate data gathering during surveys, a comparison of P. atkinsonae sp. n. with S. dimorphus is provided, along with descriptions of colouration and photographs of live specimens of all three parapagurid species. Information on taxonomy of the species is summarized, as well as knowledge of their distribution in the demersal research survey regions of South Africa.

show abstract

“…Globally S. dimorphus has a reported depth range of 91–1,995 m, while P. bouvieri is reportedly found at depths of 249–810 m (Lemaitre, ; Lemaitre & McLaughlin, ). Sympagurus dimorphus has a broad distribution in the southern hemisphere between latitudes 22°S and 57°S (Lemaitre, ; Lemaitre & McLaughlin, ), while P. bouvieri has a more limited distribution in the south‐eastern Atlantic, ranging from Namibia to KwaZulu–Natal (Lemaitre, ). Nothing is known about the life history or biology of either species in South African waters, although some work has been conducted on South American populations of S. dimorphus (Schejter & Mantelatto, ).…”

Section: Introductionmentioning

confidence: 99%

“…Nothing is known about the life history or biology of either species in South African waters, although some work has been conducted on South American populations of S. dimorphus (Schejter & Mantelatto, ). P. bouvieri is known only from taxonomic descriptions (Lemaitre, ), and its biology remains entirely undocumented.…”

Section: Introductionmentioning

confidence: 99%

Population structure and morphology of South African deep‐water parapagurid hermit crabs

2019

View full text Add to dashboard Cite

The parapagurid hermit crabs Sympagurus dimorphus (Studer, 1883) and Parapagurus bouvieri (Stebbing, 1910) form dominant components of South African deeper-water benthic invertebrate communities and, as adults, forego the use of "traditional" gastropod shells in favour of symbiotically associated Epizoanthus carcinoecia. A total of 1,122 adult S. dimorphus and 549 adult P. bouvieri derived from demersal research trawl surveys were examined to investigate parameters of population structure, carcinoecia association and morphology. S. dimorphus had a female-biased sex ratio of 1:1.5, and P. bouvieri an equal sex ratio of 1:1. The proportion of males of both species increased with cephalothoracic shield length (CL). The lengths of the major right chelipeds of both S. dimorphus males and females, and P. bouvieri males were positively allometric, and negatively allometric in P. bouvieri females. All P. bouvieri inhabited carcinoecia, while 3.39% (n = 38) of S. dimorphus specimens occupied gastropod shells. There was a positive relationship between S. dimorphus CL and rate of gastropod shell occupation (r 2 = 0.96). In S. dimorphus, number of zoanthid polyps forming the carcinoecia pseudoshell increased with both total shell volume (R 2 = 0.73) and colony height (R 2 = 0.61), but no such relationships were found for P. bouvieri. Euspira napus was the most common original shell around which carcinoecia developed in both S. dimorphus (45.45%) and P. bouvieri (39.00%). We speculate that these hermit species exist along an evolutionary continuum of carcinoecia use. Sympagurus dimorphus retains the ability to occupy both gastropod shells and pseudoshells and, like most other hermit crabs, continue to use shells/carcinoecia as shelters to protect the entire body. In contrast, adult P. bouvieri appear to be totally reliant on carcinoecia, which they use more as a brood pouch covering only the abdomen, rather than as a shelter into which they can fully retract to escape predation.

show abstract

A review of eastern Atlantic species of the family Parapaguridae (Decapoda, Anomura, Paguroidea)

Cited by 12 publications

References 9 publications

Updating changes in the Iberian decapod crustacean fauna (excluding crabs) after 50 years

Updating changes in the Iberian decapod crustacean fauna (excluding crabs) after 50 years

Differentiation of three common deep-water hermit crabs (Crustacea, Decapoda, Anomura, Parapaguridae) from the South African demersal abundance surveys, including the description of a new species of Paragiopagurus Lemaitre, 1996

Population structure and morphology of South African deep‐water parapagurid hermit crabs

Contact Info

Product

Resources

About