The eumedonid file: a case study of systematic compatibility using larval and adult characters (Crustacea: Decapoda: Brachyura)

Summary Eumedonid crabs have an unusual ecology. They are a specialized group of brachyurans, which are wholly symbiotic with echinoderms. Consequently, this taxon has received much attention from carcinologists, but consensus on the familial status of these crabs has not been reached. Eumedonids have been variously regarded as a subfamily of the Parthenopidae, as pilumnids and as a distinct family. The taxonomic position of the Eumedonidae is appraised using available first zoeal and adult characters. The validity of this family status is challenged, and the present study shows that this group of crabs cannot be distinguished from the pilumnids and therefore supports the view that the eumedonids are a subfamily of the Pilumnidae.

[1]  H. Shih,et al.  An updated annotated checklist of brachyuran crabs from Taiwan (Crustacea: Decapoda) , 2001 .

[2]  P. Clark.  Interpreting patterns in chaetotaxy and segmentation associated with abbreviated brachyuran zoeal development , 2000 .

[3]  P. Clark,et al.  The Indo-Pacific Pilumnidae XII. On the familial placement of Chlorodiella bidentata (Nobili, 1901) and Tanaocheles stenochilus Kropp, 1984 using adult and larval characters with the establishment of a new subfamily, Tanaochelinae (Crustacea: Decapoda: Brachyura) , 2000 .

[4]  P. Ng,et al.  A revision of Eumedonus H. Milne Edwards, 1834 and Gonatonotus White, 1847 (Crustacea: Decapoda: Brachyura: Eumedonidae), two genera of crabs symbiotic with sea urchins , 2000 .

[5]  P. Ng,et al.  Revision of the Genus Echinoecus (Decapoda: Brachyura: Eumedonidae), Crabs Symbiotic with Sea Urchins , 1999 .

[6]  P. Ng,et al.  Revision of the Genus zebrida White, 1847 (Crustacea:Decapoda:Brachyura: Eumedonidae) , 1999 .

[7]  P. Ng,et al.  A note on the sea cucumber crab, Hapalonotus reticulatus (Crustacea: Brachyura: Eumedonidae) , 1999 .

[8]  P. Ng,et al.  The brachyuran crabs (Crustacea: Decapoda: Eumellonidae and Portunidae) symbiotic with echinoderms in Taiwan , 1999 .

[9]  P. Clark,et al.  Accuracy and standardization of brachyuran larval descriptions , 1998 .

[10]  D. Guinot,et al.  Evolution of the abdominal holding systems of brachyuran crabs (Crustacea, Decapoda, Brachyura) , 1998 .

[11]  K. L. Ng,et al.  A revision of the genus Rhabdonotus A. Milne Edwards, 1879, with descriptions of two new species and the first zoeal stage of R. pictus A. Milne Edwards, 1879 (Brachyura: Eumedonidae) , 1995 .

[12]  P. Ng,et al.  On a new genus and species of eumedonid crab from the Gulf of Carpentaria, northern Australia (Crustacea: Decapoda: Brachyura: Eumedonidae) , 1995 .

[13]  P. Ng,et al.  The Identities of Two Crinoid Symbionts, Harrovia Albolineata Adams & White, 1849, and H. Longipes Lanchester, 1900 (Decapoda, Brachyura, Eumedonidae) , 1993 .

[14]  C. Massin,et al.  On the association between the crab Hapalonotus reticulatus (Crustacea, Brachyura, Eumedonidae) and the sea cucumber Holothuria (Metriatyla) scabra (Echinodermata, Holothuridae) , 1992 .

[15]  P. Clark,et al.  A redescription of Macrocheira kaempferi (Temminck, 1836) zoeas with a discussion of the classification of the Majoidea Samouelle, 1819 (Crustacea: Brachyura) , 1991 .

[16]  P. Ng,et al.  COMPLETE LARVAL DEVELOPMENT OF ZEBRIDA ADAMSII WHITE, 1847 (DECAPODA: BRACHYURA), REARED IN THE LABORATORY , 1991 .

[17]  A. Dai,et al.  Crabs of the China seas , 1991 .

[18]  P. Davie.  Two new genera of the family Pilumnidae (Crustacea: Decapoda: Brachyura) from Queensland, Australia , 1989 .

[19]  P. Castro.  RANGE EXTENSIONS AND NEW HOST RECORDS OF EUMEDONID CRABS OF THE GENUS HARROVIA ADAMS & WHITE, 1848 (DECAPODA, BRACHYURA, EUMEDONIDAE) , 1989 .

[20]  P. Davie.  The genus Lophopilumnus (Crustacea: Brachyura: Pilumnidae): The rediscovery of L. cristipes (Caiman, 1900) and the description of a new species , 1988, The Beagle : Records of the Museums and Art Galleries of the Northern Territory.

[21]  R. Gore,et al.  Re-establishment of the Family Eumedonidae Dana, 1853 (Crustacea: Brachyura) , 1988 .

[22]  P. Ng,et al.  The first zoeal stage of Harrovia albolineata Adams and White, 1848 (Crustacea: Brachyura: Pilumnidae), with a note on Eumedonine systematics , 1988 .

[23]  R. Gore,et al.  Echinoecus pentagonus (A. Milne Edwards, 1879): larval development and systematic position (Crustacea: Brachyura: Xanthoidea nec Parthenopoidea) , 1986 .

[24]  P. Ng,et al.  New records of Mimilambrus wileyi Williams, 1979 (Crustacea: Decapoda: Brachyura), with notes on the systematics of the Mimilambridae Williams, 1979, and Parthenopidae MacLeay, 1838, sensu Guinot, 1978 , 1986 .

[25]  M. Terada.  On the Larval Development of Parthenope (Platylambrus) valida De Haan (Brachyura, Parthenopinae)(Developmental Biology) , 1985 .

[26]  D. Guinot.  Révision du genre Parapanope de Man, 1895 (Crustacea Decapoda Brachyura) avec description de trois espèces nouvelles , 1985 .

[27]  A. Crosnier,et al.  Xanthoidea, Xanthidae et Trapeziidae : crustacés décapodes brachyoures de l'océan Indien occidental et de la mer Rouge . Addendum : Carpiliidae et Menippidae , 1984 .

[28]  Joel W. Martin.  NOTES AND BIBLIOGRAPHY ON THE LARVAE OF XANTHID CRABS, WITH A KEY TO THE KNOWN XANTHID ZOEAS OF THE WESTERN ATLANTIC AND GULF OF MEXICO , 1984 .

[29]  R. Kropp.  Tanaocheles stenochilus, a new genus and species of crab from Guam, Mariana Islands (Brachyura: Xanthidae) , 1984 .

[30]  P. Ng,et al.  The Indo-Pacific Pilumnidae I. Description of Four New Species of the Genus Pilumnus Leach,1815, and Definition of a New Genus. Bathypilumnus , 1984 .

[31]  C. Shen.  rare species of Parthenopidae(Crustacea : Brachyura)from China Seas , 1982 .

[32]  R. Gore,et al.  Are the Oxyrhyncha a Natural Group , 1981 .

[33]  D. Guinot.  Données nouvelles sur la morphologie, la phylogenèse et la taxonomie des crustacés décapodes brachyoures , 1979 .

[34]  A. Williams.  A New Crab Family From Shallow Waters Of The West indies Crustacea Decapoda Brachyura , 1979 .

[35]  P. Castro.  Settlement and habitat selection in the larvae of Echinoecus pentagonus (A. Milne Edwards), a brachyuran crab symbiotic with sea urchins , 1978 .

[36]  Tsuneo Sakai.  Crabs of Japan and the adjacent seas , 1976 .

[37]  M. Takeda.  A new genus and a new species of the Parthenopidae from the sea off the Ogasawara lslands Crustacea, Brachyura , 1973 .

[38]  P. Sandifer.  LARVAL STAGES OF THE CRAB, PILUMNUS DASYPODUS KINGSLEY (CRUSTACEA, BRACHYURA, XANTHIDAE), OBTAINED IN THE LABORATORY l , 1973 .

[39]  A. Thiriot.  Stades larvaires de parthenopidae méditerranées : Heterocrypta maltzani miers et parthenope massena (H.Milne-Edwards) , 1973 .

[40]  Carl von Linné.  Fauna svecica sistens animalia sveciae regni : qvadrupedia, aves, amphibia, pisces, insecta, vermes, distributa per classes & ordines, genera & species : cum differentiis specierum, synonymis autorum, nominibus incolarum, locis habitationum, descriptionibus insectorum , 1973 .

[41]  W. T. Yang.  The larval and postlarval development of Parthenope serrata reared in the laboratory and the systematic position of the Parthenopinae (Crustacea, Brachyura). , 1971, The Biological bulletin.

[42]  Marit E. Christiansen.  Crustacea Decapoda Brachyura , 1970 .

[43]  L. Holthuis,et al.  Ph. F. von Siebold and Fauna japonica : a history of early Japanese zoology , 1970 .

[44]  D. Griffin.  The status of Pilumnus terraereginae Haswell (Crustacea, Decapoda, Xanthidae) and a giant new Pilumnis from Queensland waters , 1970 .

[45]  L. Holthuis.  ON THE DATES OF PUBLICATION OF W. DE HAAN'S VOLUME ON THE CRUSTACEA OF P. F. VON SIEBOLD'S "FAUNA JAPONICA" , 1953 .

[46]  I. Gordon.  DESCRIPTION OF A NEW SPECIES OF CRAB FROM MACCLESFIELD BANK (PARTHENOPIDAE, EUMEDONINAE) , 1947 .

[47]  三宅 貞〓.  NOTE ON CRABS OF THE GENUS ECHINOECUS RATHBUN LIVING COMMENSALLY WITH ECHINOIDS (PARTHENOPIDAE,EUMEDONINAE) , 1939 .

[48]  F. M. Duncan.  On the dates of publication of the Society's ‘Proceedings,’ 1859–1926. , 2010 .

[49]  Tsuneo Sakai.  Studies on the crabs of Japan , 1936 .

[50]  M. Ward.  Crustacea Brachyura from the coasts of Queensland , 1936 .

[51]  I. Gordon.  Brachyura from the coasts of China , 1931 .

[52]  Isabella Gordon D.Sc..  LI.—Seven new species of Brachyura from the Coasts of China , 1930 .

[53]  V. V. Straelen,et al.  Résultats scientifiques du voyage aux Indes orientales néerlandaises de LL. AA. RR. le prince et la princesse Léopold de Belgique , 1930 .

[54]  H. Balss.  Diagnosen neuer Decapoden aus den Sammlungen der Deutschen Tiefsee-Expedition und der japanischen Ausbeute Dofleins und Haberers , 1921 .

[55]  K. Klunzinger.  Die Spitz- und Spitzmundkrabben (Oxyrhyncha und Oxystomata) des Roten Meeres. Mit 2 Tafeln und 13 Abbildungen im Text. , 1906 .

[56]  A. MacGilchrist.  XXVIII.—Natural History Notes from the R.I.M.S. ‘Investigator,’ Capt. T. H. Henning, R. N. (retired), commanding.—Series III., No. 6. An Account of the new and some of the rarer Decapod Crustacea obtained during the Surveying Seasons 1901–1904 , 1905 .

[57]  Ceylon.,et al.  Report to the government of Ceylon on the pearl oyster fisheries of the gulf of Manaar , 1903 .

[58]  W. F. Lanchester.  On a Collection of Crustaceans made at Singapore and Malacca. — Part I. Crustacea Brachyura , 1900 .

[59]  M. Rathbun.  A revision of the nomenclature of the Brachyura , 1897 .

[60]  L. Zehntner.  Crustacés de l'Archipel Malais , 1894 .

[61]  A. Ortmann.  Die Decapoden-Krebse des Strassburger Museums, mit besonderer Berücksichtigung der von Herrn Dr. Döderlein bei Japan und bei den Liu-Kiu-Inseln gesammelten und zur Zeit im Strassburger Museum aufbewahrten Formen , 1893 .

[62]  M. Rathbun.  Scientific results of explorations by the U. S. Fish Commission steamer Albatross. No. XXIV..Descriptions of new genera and species of crabs from the west coast of North America and the Sandwich Islands , 1893 .

[63]  J. Man.  Report on the Podophthalmous Crustacea of the Mergui Archipelago, collected for the Trustees of the Indian Museum, Calcutta, by Dr. John Anderson, F.R.S., Superintendent of the Museum.—Part V. , 1887 .

[64]  A. O. Walker.  Notes on a Collection of Crustacea from Singapore. , 1887 .

[65]  P. H. Carpenter.  On the Genus Solanocrinus, Goldfuss, and its Relations to recent Comatulæ. , 1880 .

[66]  W. A. Haswell.  On the Australian Brachyura Oxyrhyncha , 1880 .

[67]  A. Milne-edwards,et al.  Description de quelques crustacés nouveaux. , 1879 .

[68]  E. J. Miers.  I.—Descriptions of new or little-known species of Maioid Crustacea (Oxyrhyncha) in the collection of the British Museum , 1879 .

[69]  E. J. Miers.  On the Classification of the Maioid Crustacea or Oxyrhyncha, with a Synopsis of the Families, Subfamilies, and Genera. , 1879 .

[70]  J. Man.  On some new or imperfectly known podophthalmous Crustacea of the Leyden Museum , 1879 .

[71]  R. Neumann.  Systematische Uebersicht der Gattungen der Oxyrhynchen : Catalog der podophthalmen Crustaceen des Heidelberger Museums , 1878 .

[72]  A. Milne-edwards.  Recherches sur la faune carcinologique de la Nouvelle-Calédonie. , 1872 .

[73]  William Stimpson.  Prodromus descriptionis animalium evertebratorum, quae in expeditione ad oceanum Pacificum septentrionalem, a Republica Federata missa, Cadwaldaro Rinngold et Johanne Rodgers ducibus, observavit et descripsit. VIII , 1860 .

[74]  William Stimpson.  Prodromus descriptionis animalium evertebratorum, quae in Expeditione ad Oceanum Pacificum Septentrionalem, a Republica Federata missa, Cadwaladaro Ringgold et Johanne Rodgers Ducibus, observavit et descripsit W. Stimpson. Pars. V. Crustacea Ocypodoidea , 1858 .

[75]  A. Adams,et al.  Descriptions of new Crustacea from the Eastern Seas , 1847 .

[76]  W. Macleay.  On the brachyurous decapod Crustacea brought from the Cape by Dr. Smith , 1838 .

[77]  H. Milne-Edwards.  Histoire naturelle des crustacés, comprenant l'anatomie, la physiologie et la classification de ces animaux , 1834 .