Recent and fossil Isopoda Bopyridae parasitic on squat lobsters and porcelain crabs (Crustacea: Anomura: Chirostyloidea and Galatheoidea), with notes on nomenclature and biogeography

Zootaxa ◽  
2012 ◽  
Vol 3150 (1) ◽  
pp. 1 ◽  
Author(s):  
CHRISTOPHER B. BOYKO ◽  
JASON D. WILLIAMS ◽  
JOHN C. MARKHAM
Keyword(s):  
Hermit Crabs ◽  
Calanoid Copepods ◽  
Decapod Crustaceans ◽  
Squat Lobster ◽  
Proper Form ◽  
Porcelain Crab ◽  
Porcelain Crabs ◽  
Parasitic Isopod ◽  
Squat Lobsters

The parasitic isopod family Bopyridae contains approximately 600 species that parasitize calanoid copepods as larvae and decapod crustaceans as adults. In total, 105 species of these parasites (~18% of all bopyrids) are documented from Recent squat lobsters and porcelain crabs in the superfamilies Chirostyloidea and Galatheoidea. Aside from one endoparasite, all the bopyrids reported herein belong to the branchially infesting subfamily Pseudioninae. Approximately 29% (67 of 233 species) of pseudionine species parasitize squat lobsters and 16% (38 of 233 species) parasitize porcelain crabs. Bopyrids are found in five of six squat lobster families (lacking only in Kiwaidae) and the sole porcelain crab family Porcellanidae. Six pseudionine genera are shared between squat lobsters and porcelain crabs. The deepest bathymetric records of bopyrids on squat lobster hosts (5210 m), and records of swellings interpreted as indications of bopyrid presence in fossil host taxa are noted. Four nomenclatural issues are resolved and the proper form of citation for the French zoologist C. E. Hesse is provided. Biogeographic distributions for squat lobsters and porcelain crabs are discussed and compared to those of hermit crabs.

Notes on some crinoid associated decapod crustaceans (Crustacea: Decapoda) of Lakshadweep Archipelago, Central Indian Ocean

Zootaxa ◽  
2020 ◽  
Vol 4766 (1) ◽  
pp. 86-100 ◽  
Author(s):  
S. PRAKASH ◽  
N. MARIMUTHU
Keyword(s):  
Sea Urchins ◽  
Decapod Crustaceans ◽  
Sea Stars ◽  
Brachyuran Crab ◽  
Squat Lobster ◽  
Central Indian Ocean ◽  
De Man ◽  
First Time ◽  
Lakshadweep Archipelago ◽  
Squat Lobsters

Decapod crustaceans symbiotic with echinoderms (sea stars, brittle stars, feather stars, basket stars, sea cucumbers, and sea urchins) possess remarkable diversification in the Indo-Pacific. In the present study, seven species of decapod crustaceans symbiotic with crinoids are recorded based on collections from selected Islands (Agatti, Amini, Bangaram, Kavaratti, Kalpeni, and Minicoy) of Lakshadweep Archipelago. Of these decapods, five caridean shrimps (Alpheidae: Synalpheus carinatus (de Man, 1888), S. comatularum (Haswell, 1882), S. stimpsonii (de Man, 1888); Palaemonidae: Palaemonella pottsi (Borradaile, 1915), Pontoniopsis comanthi (Borradaile, 1915), one brachyuran crab [Pilumnidae: Permanotus purpureus (Gordon, 1934)] and one squat lobster [Galatheidae: Allogalathea elegans (Adams & White, 1848)] were identified. The caridean shrimps have associated with the crinoids Comaster multifidus (Müller, 1841), Phanogenia gracilis (Hartlaub, 1893), P. distincta (Carpenter, 1888), P. multibrachiata (Carpenter, 1888) and Stephanometra indica (Smith, 1876). The brachyuran crab was observed in association with the crinoid Phanogenia gracilis whereas the squat lobsters were associated with Stephanometra tenuipinna (Hartlaub, 1890) and S. indica. Except S. stimpsonii and P. purpureus, all other species were recorded for the first time from India. Here, we provide details on morphology, distribution, habitat, and hosts for all species. We recommend further exploration of the sub-shallow coral reef areas of Lakshadweep as there will be many species that certainly remain to be discovered. 

scholarly journals Redescription of the Mediterranean endemic parasitic isopod Anuropodione amphiandra (Codreanu, Codreanu & Pike, 1966) n. comb. (Crustacea: Isopoda: Bopyridae) from Munida rutllanti Zariquiey Alvarez, 1952, with new records from Turkey and a review of the genus Anuropodione Bourdon, 1967

2018 ◽  
Vol 19 (3) ◽  
pp. 611 ◽  
Author(s):  
CHRISTOPHER B. BOYKO ◽  
JASON D. WILLIAMS ◽  
AHMET ÖKTENER
Keyword(s):  
Adriatic Sea ◽  
New Records ◽  
Aegean Sea ◽  
The Mediterranean ◽  
First Time ◽  
Porcelain Crabs ◽  
Parasitic Isopod ◽  
Squat Lobsters

Seven species of bopyrid isopods were previously known from Turkish Mediterranean waters; a purported eighth species, Orthione griffenis Markham, 2004, is based on incorrect identification and likely represent Epipenaeon ingens ingens Nobili, 1906, a species already known from the area. In the present study, we report on specimens referable to Pleurocrypta amphiandra Codreanu, Codreanu & Pike, 1966, infesting Munida rutllanti Zariquiey Alvarez, 1952, collected from the southern Aegean Sea off Turkey; this species was formerly known only from the Mediterranean off Algeria and the Adriatic Sea. The species is redescribed and illustrated for the first time and transferred to Anuropodione Bourdon, 1967, which is reviewed and A. australiensis Bourdon, 1976, is transferred to Allorbimorphus Bourdon, 1976. A key to all species of Anuropodione and a list of all bopyrids found on squat lobsters and porcelain crabs in the Mediterranean are provided.

scholarly journals Extreme diversity and parasitism of Late Jurassic squat lobsters (Decapoda: Galatheoidea) and the oldest records of porcellanids and galatheids

2019 ◽  
Vol 187 (4) ◽  
pp. 1131-1154 ◽  
Author(s):  
Cristina M Robins ◽  
Adiël A Klompmaker
Keyword(s):  
Early Cretaceous ◽  
Late Jurassic ◽  
Evolutionary History ◽  
Common Species ◽  
Statistical Analyses ◽  
Decapod Crustaceans ◽  
Squat Lobsters

AbstractGalatheoid decapod crustaceans consist of ~1250 species today, but their evolutionary history and origin are poorly known. We studied the largest known fossil galatheoid assemblage, from the Late Jurassic of Ernstbrunn, Austria. This coral-associated assemblage yielded 2348 specimens, arranged in 53 species, 22 genera and six families. Rarefaction analyses show that nearly all taxa have been collected. In addition to abundant Munidopsidae, this assemblage also contains the oldest members of four of the six galatheoid families, including Galatheidae, Munididae, Paragalatheidae and Porcellanidae. We describe the oldest Porcellanidae and Galatheidae to date, and a catillogalatheid: Vibrissalana jurassica gen. et sp. nov., ?Galathea genesis sp. nov. and Galatheites britmelanarum sp. nov. Our re-examination of the oldest claimed porcellanid, Jurellana tithonia, from Ernstbrunn, indicates that it represents a homolodromioid brachyuran, ascribed to Jurellanidae fam. nov. along with Ovalopus gen. nov. The second-oldest claimed porcellanid, Early Cretaceous Petrolisthes albianicus, is transferred to the catillogalatheid Hispanigalathea. We further document that 10.4% of Ernstbrunn galatheoid specimens were parasitized by epicaridean isopods, as shown by swellings in the gill region. Statistical analyses indicate that infestation is near non-random, varying from 0 to 33% for common species. Thus, Late Jurassic coral-associated habitats were key ecosystems in the evolution of galatheoids and their parasites.

New record of Munidopsis taiwanica (Decapoda, Anomura) from a mud volcano field in the Mariana Trench, with in-situ observations on habitat

Crustaceana ◽  
2018 ◽  
Vol 91 (3) ◽  
pp. 363-373 ◽  
Author(s):  
Dong Dong ◽  
Xinzheng Li
Keyword(s):  
New Record ◽  
Mud Volcano ◽  
In Situ Observation ◽  
Mariana Trench ◽  
Squat Lobster ◽  
The World ◽  
In Situ Observations ◽  
Seafloor Sediments ◽  
Squat Lobsters

Squat lobsters are prevalent in chemosynthetic environments but have been insufficiently studied in mud volcano habitats. An abyssal species,Munidopsis taiwanicaOsawa, Lin & Chan, 2008 was recently collected in a mud volcano field in the Mariana Trench at a depth greater than 5000 m, which represents a new distributional record. Its diagnostic characters are presented in this study. In-situ observation suggested thatM. taiwanicawas closely associated with this chemosynthetic environment and probably exhibited camouflage behaviour by attaching seafloor sediments onto its body.Munidopsis taiwanicais the first confirmed species of squat lobster found in the mud volcano environment, and currently represents the deepest record (5491 m) of squat lobsters in the world.

Infestation of the squat lobster Munida gregaria (Anomura: Galatheidae) by Pseudione galacanthae (Isopoda: Bopyridae) in San Jorge Gulf, Argentina

2010 ◽  
Vol 91 (8) ◽  
pp. 1681-1688 ◽  
Author(s):  
Martín Varisco ◽  
Julio Vinuesa
Keyword(s):  
Gonad Development ◽  
Reproductive Potential ◽  
Reproductive Function ◽  
Gonadal Development ◽  
Squat Lobster ◽  
By Catch ◽  
Size Interval ◽  
The Right ◽  
Low Prevalence ◽  
Squat Lobsters

We estimated the prevalence of the bopyrid Pseudione galacanthae parasitizing the population of the squat lobster Munida gregaria in San Jorge Gulf and analysed some aspects concerning the effect of the parasite on host reproductive potential. The relationship between the development stages of the parasite and the host size was also analysed. The squat lobsters were caught as by-catch in the coastal area of the gulf from vessels operating in the fisheries of hake Merluccius hubbsi, southern king crab Lithodes santolla and Argentine red shrimp Pleoticus muelleri. The samples were collected between October 1997 and June 2009. In the laboratory, squat lobsters were sexed and the length of their carapace was measured. In males, the length of the right cheliped was recorded and gonadal development was examined. In females, the size and number of carried eggs were determined and the length of the pleopods III, IV and V were measured. All squat lobsters parasitized exhibit a gross bulge in the right side of carapace. Prevalence ranged between 0 and 1.43% (N = 21,519). No significant differences in prevalence were found for sexes, depths and seasons. The prevalence was higher for the size interval 7–10 mm CL (0.79%) than for the rest of the intervals. Parasitism had no effect on the secondary sex characters. Parasitized males displayed gonad development. There was no difference in prevalence between ovigerous and non-ovigerous squat-lobster females. Parasitized females had smaller eggs than non-parasitized ones, but their fecundity was similar. The linear relationship between the parasite and host sizes and the presence of larvae and immature stages of P. galacanthae in small-sized squat lobsters suggest that the host is infected early in its development. The low prevalence could be related to oceanographic conditions which favour larval dispersal of the parasite and host. The infestation by P. galacanthae has little impact on the M. gregaria population, mostly due to the low prevalences of infestation and the minor impact in reproductive function.

scholarly journals On some squat lobsters from India (Decapoda, Anomura, Munididae), with description of a new species of Paramunida Baba, 1988

ZooKeys ◽  
2020 ◽  
Vol 965 ◽  
pp. 17-36
Author(s):  
Enrique Macpherson ◽  
Tin-Yam Chan ◽  
Appukuttannair Biju Kumar ◽  
Paula C. Rodríguez-Flores
Keyword(s):  
New Species ◽  
16S Rrna ◽  
Genetic Similarity ◽  
Phylogenetic Analyses ◽  
Andaman Islands ◽  
Squat Lobster ◽  
Mitochondrial Markers ◽  
The Family ◽  
A New Species ◽  
Squat Lobsters

Squat lobster specimens belonging to the family Munididae were recently collected along the southwestern coast of the mainland of India and in the Andaman Islands. The specimens belong to two known species, Agononida prolixa (Alcock, 1894) and Munida compacta Macpherson, 1997, and a new species, Paramunida bineeshisp. nov. We here redescribe A. prolixa and describe and figure the new species. Munida compacta is newly recorded from India, and we figure the live coloration. In addition, molecular and phylogenetic analyses of two mitochondrial markers (16S rRNA and COI) revealed the phylogenetic relationships of M. compacta and P. bineeshisp. nov. with their most closely related congeners. The genetic similarity among the individuals of M. compacta from different locations is also addressed.

scholarly journals The Neural Basis of Escape Swimming Behaviour in the Squat lobster Galathea Strigosa: I. Absence of Cord Giant Axons and Anatomy of Motor Neurones Involved in Swimming

1985 ◽  
Vol 117 (1) ◽  
pp. 251-269
Author(s):  
KEITH T. SILLAR ◽  
WILLIAM J. HEITLER
Keyword(s):  
Interspecific Variation ◽  
Small Degree ◽  
Hermit Crabs ◽  
Swimming Behaviour ◽  
Neural Basis ◽  
Giant Fibre ◽  
Squat Lobster ◽  
Giant Axons ◽  
Soma Size ◽  
Motor Neurones

1. The anatomy and physiology of neurones underlying escape swimming behaviour in the squat lobster, Galathea strigosa, have been investigated, and the results are discussed in the context of the evolution of decapod escape behaviour. 2. In contrast to crayfish, hermit crabs and a number of other related decapods, Galathea does not possess a giant fibre system for escape. 3. Fast flexor motor neurones (FFs) and fast extensor motor neurones (FEs) have been shown, by cobalt backfilling, to be homologous with crayfish FFs and FEs in number, size and distribution of somata. A small degree of intersegmental and interspecific variation is noted. 4. The flexor inhibitor (FI) neurone is described in terms of its central anatomy, peripheral function and peripheral branching pattern. In each of these respects the neurone is found to be homologous with the crayfish FI. 5. The neurone homologous with the crayfish motor giant (MoG) in its soma size and position is found to be a typical FF in Galathea. This ‘MoGH’ contrasts with the crayfish MoG in having central neuropilar arborization and in lacking axonal branches in the connectives. These differences can be accounted for by the absence of cord giant axons.

Squat lobsters (Crustacea: Decapoda: Galatheoidea and Chirostyloidea) collected during the TALUD XIV cruise in the Gulf of California, Mexico, and rediscovery of Gastroptychus perarmatus (Haig, 1968) in the eastern Pacific

Zootaxa ◽  
2012 ◽  
Vol 3418 (1) ◽  
pp. 28 ◽  
Author(s):  
MICHEL E. HENDRICKX
Keyword(s):  
Gulf Of California ◽  
California Current ◽  
First Record ◽  
Eastern Pacific ◽  
Tropical Eastern Pacific ◽  
Squat Lobster ◽  
Distribution Limit ◽  
Water Species ◽  
Squat Lobsters

Seven species of squat lobsters were collected during the TALUD XIV cruise in the Gulf of California, Mexico. Gastrop-tychus perarmatus (Haig, 1968) was collected for the second time since it was described and represents a first record ofthe genus in the tropical eastern Pacific. Its association with gorgonians is also noted from color pictures taken during adeep-water dive in another cruise in the area. Janetogalathea californiensis (Benedict, 1902) was captured in four sam-pling stations, in the same area where it has been previously reported. Three species of Munida Leach, 1820 were collected(M. bapensis Hendrickx, 2000, M. mexicana Benedict, 1902, and M. tenella Benedict, 1902). Records of M. bapensis ofthis cruise combined with additional captures of this species in 2007 in the same area indicate that it is the most abundantdeep-water species of squat lobster in the northern part of the central Gulf of California. Among the species of Munida,M. tenella was second in abundance and included specimens much larger than previously known. The single record forM. mexicana fits within the currently known depth and geographical ranges. Only one species of Munidopsis Whiteaves,1874 (M. depressa Faxon, 1892) was collected, in one of the deeper sampling stations visited during the cruise and itsnorthernmost distribution limit within the Gulf of California is increased by ca two degrees of latitude. The seventh speciescollected during this survey, Pleuroncodes planipes Stimpson, 1860, is a common inhabitant of the California Current and the Gulf of California.

Observation of intersexuality in land hermit crabs (Anomura: Coenobitidae)

2007 ◽  
Vol 87 (2) ◽  
pp. 533-536 ◽  
Author(s):  
Oleg Gusev ◽  
Yaroslav Zabotin
Keyword(s):  
Reproductive System ◽  
Hermit Crab ◽  
Male Reproductive System ◽  
Hermit Crabs ◽  
Decapod Crustaceans

We report here the first observation of intersexuality in a land hermit crab (Coenobitidae). Three species of land hermit crabs from Okinawa were investigated. In the population of the terrestrial hermit crab Coenobita rugosus two per cent of males were found to be intersex. Besides the true male gonopores on the coxae of the 5th pair of pereopods, they had additional openings on the coxae of the 3rd pair of pereopods. Both specimens examined had a normally developed male reproductive system. In the populations of two other species studied, C. brevimanus and C. purpureus, however, no intersex individuals have been found. Examples of intersexuality in decapod crustaceans are discussed and putative explanations of this phenomenon in land hermit crabs are proposed.

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