Checklist for Class Arachnida Lamarck, 1801 (Arachnids) and region Luzerne County (Pennsylvania, USA)
List of families for Luzerne County 41 Families width 148 Species #ALCDTBMSPGHINOU
| Araneidae Simon, 1895 | Golden orb web spiders | 19 | Species | Taxom | | Agelenidae (C. L. Koch, 1837) | Agelenid Spiders | 5 | Species | Taxom | | Liocranidae Simon, 1897 | Liocranid sac spiders | 1 | Species | Taxom | | Corinnidae Karsch, 1880 | Ant-like Sac Spiders | 6 | Species | Taxom | | Dictynidae O. P-Cambridge, 1871 | Dictynid spiders | 2 | Species | Taxom | | Theridiidae (Sundevall, 1833) | Cobweb And Widow Spiders | 9 | Species | Taxom | | Ascidae Oudemans, 1905 | | 1 | Species | Taxom | | Aturidae Thor, 1900 | | 0 | Species | Taxom | | Thomisidae Sundevall, 1833 | Crab Spider | 11 | Species | Taxom | | Blattisociidae Garman, 1948 | | 1 | Species | Taxom | | Carabodidae Koch, 1837 | | 1 | Species | Taxom | | Linyphiidae Blackwall, 1859 | Dwarf spiders | 10 | Species | Taxom | | Miturgidae Simon, 1885 | Long-legged sac spiders | 1 | Species | Taxom | | Clubionidae Wagner, 1887 | Clubiones | 3 | Species | Taxom | | Salticidae Blackwall, 1842 | Jumping Spider | 24 | Species | Taxom | | Digamasellidae Evans, 1957 | | 0 | Species | Taxom | | Amblyommidae Banks, 1907 | | 2 | Species | Taxom | | Pisauridae Simon, 1890 | Big wolf spider | 2 | Species | Taxom | | Gnaphosidae Pocock, 1898 | Flat-bellied ground spiders | 6 | Species | Taxom | | Dysderidae C. L. Koch, 1837 | Dysderid spiders | 2 | Species | Taxom | | Harpirhynchidae Dubinin, 1957 | | 0 | Species | Taxom | | Histiostomatidae Berlese, 1897 | | 1 | Species | Taxom | | Lycosidae (Lehtinen & H..., 1979) | Ground Spiders | 13 | Species | Taxom | | Ixodidae (C. L. Koch, 1844) | Hard Tick | 1 | Species | Taxom | | Sclerosomatidae Simon, 1879 | Sclerosomatid Harvestmen | 3 | Species | Taxom | | Neobisiidae Chamberlin, 1930 | | 1 | Species | Taxom | | Hahniidae Bertkau, 1878 | Dwarf sheet spiders | 2 | Species | Taxom | | Phalangiidae Latreille, 1802 | Daddy-Long-Legs | 2 | Species | Taxom | | Oxyopidae Thorell, 1870 | Lynx spiders | 1 | Species | Taxom | | Tetragnathidae Menge, 1866 | Elongated Orb Weavers | 5 | Species | Taxom | | Philodromidae (Thorell, 1870) | False crab spiders | 7 | Species | Taxom | | Proctophyllodidae Trouessart &..., 1884 | | 0 | Species | Taxom | | Pygmephoridae Krczal, 1964 | | 0 | Species | Taxom | | Scutacaridae Paoli, 1911 | | 0 | Species | Taxom | | Tengellidae Dahl, 1908 | Tengellid spiders | 1 | Species | Taxom | | Pholcidae C. L. Koch, 1851 | Carpenter spider | 1 | Species | Taxom | | Atypidae Thorell, 1870 | Atypical tarantulas | 1 | Species | Taxom | | Theridiosomatidae Simon, 1881 | Ray orbweavers | 1 | Species | Taxom | | Unionicolidae Oudemans, 1909 | | 0 | Species | Taxom | | Trombiculidae Ewing, 1929 | Chigger mites | 1 | Species | Taxom | | Anyphaenidae Bertkau, 1878 | Anyphaenid sac spiders | 1 | Species | Taxom |
Genera for Luzerne County 107 Genera with 148 Species #ABCDEFGHILMNOPRSTUWXZ
| Acanthepeira Marx, 1805 | | 1 | Species | Taxom | | Agelenopsis Giebel, 1933 | American grass spiders | 3 | Species | Taxom | | Agroeca Westring, 1890 | | 1 | Species | Taxom | | Apochinomma Pavesi, 1896 | | 1 | Species | Taxom | | Araneus Clerck, 1847 | Angulate & roundshouldered orbweavers | 6 | Species | Taxom | | Araniella Chamberlin &..., 1847 | Cucumber spiders | 1 | Species | Taxom | | Archaeodictyna Caporiacco, 1871 | | 1 | Species | Taxom | | Argiope Audouin, 1775 | Garden orbweavers | 2 | Species | Taxom | | Asagena Sundevall, 1882 | | 1 | Species | Taxom | | Asca von Heyden, 1963 | | 1 | Species | Taxom | Aturus Kramer, 1875 | | 0 | Species | Taxom | | Bassaniana Strand, 1880 | Bark crab spiders | 1 | Species | Taxom | | Blattisocius Keegan, 1947 | | 1 | Species | Taxom | | Carabodes Koch, 1914 | | 1 | Species | Taxom | | Castianeira Keyserling, 1847 | Ant-Mimic Sac Spiders | 1 | Species | Taxom | | Ceraticelus Simon, 1874 | | 1 | Species | Taxom | | Cheiracanthium C. L. Koch, 1864 | Longlegged sac spiders | 1 | Species | Taxom | | Clubiona Latreille, 1941 | Leaf curling sac spiders | 2 | Species | Taxom | | Colonus Cambridge, 1846 | | 1 | Species | Taxom | | Coras Simon, 1881 | Funnel Web Spiders | 1 | Species | Taxom | | Cyclosa Menge, 1842 | Three-lobed Spiders | 2 | Species | Taxom | Dendrolaelaps Halbert, 1915 | | 0 | Species | Taxom | | Dermacentor Koch, 1821 | Dog Ticks | 2 | Species | Taxom | | Dictyna Sundevall, 1850 | | 1 | Species | Taxom | Digamasellus Berlese, 1905 | | 0 | Species | Taxom | | Dolomedes Latreille, 1837 | Dock spiders | 2 | Species | Taxom | | Drapetisca Menge, 1909 | | 1 | Species | Taxom | | Drassyllus Chamberlin, 1922 | | 3 | Species | Taxom | | Dysdera Latreille, 1910 | | 2 | Species | Taxom | | Elaver O. P.-Cambridge, 1866 | | 1 | Species | Taxom | | Enoplognatha Pavesi, 1758 | | 2 | Species | Taxom | | Eris C. L. Koch, 1845 | | 2 | Species | Taxom | | Euryopis Menge, 1900 | | 1 | Species | Taxom | | Eustala Simon, 1842 | | 1 | Species | Taxom | | Evarcha Simon, 1883 | | 1 | Species | Taxom | | Frontinella Cambridge, 1841 | | 1 | Species | Taxom | | Gea C. L. Koch, 1850 | | 1 | Species | Taxom | | Habronattus F. O. P.-Cam..., 1924 | Paradise Spiders | 2 | Species | Taxom | | Haplodrassus Chamberlin, 1839 | | 1 | Species | Taxom | Harpirhynchus Megnin, 1877 | | 0 | Species | Taxom | | Hentzia Marx, 1846 | | 1 | Species | Taxom | | Herpyllus Hentz, 1832 | | 1 | Species | Taxom | | Histiostoma Kramer, 2001 | | 1 | Species | Taxom | | Hogna Simon, 1885 | | 2 | Species | Taxom | | Hypselistes Simon, 1875 | | 1 | Species | Taxom | | Ixodes Latreille, 1869 | | 1 | Species | Taxom | | Larinioides Caporiacco, 1758 | Furrow spiders | 2 | Species | Taxom | | Latrodectus Walckenaer, 1837 | Black widow spider | 1 | Species | Taxom | | Leiobunum C. L. Koch, 1821 | Daddy Long Leg Spiders | 3 | Species | Taxom | | Maevia C. L. Koch, 1837 | | 1 | Species | Taxom | | Mangora O. P.-Cambridge, 1847 | | 1 | Species | Taxom | | Marpissa C. L. Koch, 1846 | | 2 | Species | Taxom | | Maso Simon, 1851 | | 1 | Species | Taxom | | Mecaphesa Simon, 1847 | | 2 | Species | Taxom | | Microbisium Chamberlin, 1895 | | 1 | Species | Taxom | | Misumena Latreille, 1758 | Flower crab spiders | 1 | Species | Taxom | | Naphrys Edwards, 1846 | | 1 | Species | Taxom | | Neoantistea Gertsch, 1887 | | 2 | Species | Taxom | | Neon Simon, 1888 | | 1 | Species | Taxom | | Neoscona Simon, 1838 | Spotted orbweavers | 2 | Species | Taxom | | Neriene Blackwall, 1842 | | 2 | Species | Taxom | | Odiellus Roewer, 1879 | | 1 | Species | Taxom | | Oxyopes Latreille, 1845 | Lynx Spiders | 1 | Species | Taxom | | Pachygnatha Sundevall, 1845 | Thickjawed Orb Weavers | 2 | Species | Taxom | | Parasteatoda Archer, 1841 | Comb-Clawed Spider | 1 | Species | Taxom | | Pardosa C. L. Koch, 1844 | Thin-legged Wolf Spider | 3 | Species | Taxom | | Pelegrina Franganillo, 1837 | White-Cheeked Jumping Spiders | 2 | Species | Taxom | | Phalangium Linnaeus, 1761 | | 1 | Species | Taxom | | Phidippus C. L. Koch, 1885 | | 3 | Species | Taxom | | Philodromus Walckenaer, 1826 | Running Crab Spider | 4 | Species | Taxom | | Phrurotimpus Chamberlin &..., 1911 | | 2 | Species | Taxom | | Pirata Sundevall, 1885 | Pirate wolf spiders | 1 | Species | Taxom | | Piratula Roewer, 1885 | | 1 | Species | Taxom | | Pityohyphantes Simon, 1850 | Hammock Spiders | 1 | Species | Taxom | | Platycryptus Hill, 1778 | | 1 | Species | Taxom | Proctophyllodes Robin, 1868 | | 0 | Species | Taxom | | Pseudeuophrys Dahl, 1826 | | 1 | Species | Taxom | Pygmephorus Kramer, 1877 | | 0 | Species | Taxom | | Rabidosa Roewer, 1837 | | 1 | Species | Taxom | | Salticus Latreille, 1757 | Zebra Spider | 1 | Species | Taxom | | Schizocosa Chamberlin, 1844 | | 3 | Species | Taxom | | Scotinella Banks, 1890 | | 1 | Species | Taxom | Scutacarus Gros, 1845 | | 0 | Species | Taxom | | Sitticus Simon, 1880 | | 1 | Species | Taxom | | Socalchemmis Platnick & U..., 1919 | | 1 | Species | Taxom | | Spermophora Hentz, 1836 | | 1 | Species | Taxom | | Sphodros Walckenaer, 1842 | | 1 | Species | Taxom | | Steatoda Sundevall, 1802 | False black widows | 2 | Species | Taxom | | Tegenaria Latreille, 1758 | House spiders | 1 | Species | Taxom | | Tennesseellum Petrunkevitch, 1882 | | 1 | Species | Taxom | | Tetragnatha Latreille, 1842 | Four-jawed spider | 3 | Species | Taxom | | Thanatus C. L. Koch, 1758 | | 1 | Species | Taxom | | Theridion Walckenaer, 1882 | Tangle-Web Spiders | 1 | Species | Taxom | | Theridiosoma O. P.-Cambridge, 1877 | Ray spiders | 1 | Species | Taxom | | Tibellus Simon, 1802 | Slender Crab Spider | 2 | Species | Taxom | | Tigrosa Brady, 1837 | | 1 | Species | Taxom | | Tmarus Simon, 1837 | | 1 | Species | Taxom | | Trachelas L. Koch, 1847 | Running Spider | 1 | Species | Taxom | | Trochosa C. L. Koch, 1778 | | 1 | Species | Taxom | | Tutelina Simon, 1891 | | 2 | Species | Taxom | Unionicola Haldeman, 1842 | | 0 | Species | Taxom | | Walchia Ewing, 1964 | | 1 | Species | Taxom | | Walckenaeria Blackwall, 1882 | | 1 | Species | Taxom | | Wulfila O. P.-Cambridge, 1847 | | 1 | Species | Taxom | | Xysticus Koch, 1880 | Ground Crab Spider | 6 | Species | Taxom | | Zelotes Gistel, 1945 | | 1 | Species | Taxom | | Zygoballus Peckham & Pe..., 1888 | | 1 | Species | Taxom |
Species list for Luzerne County 148 Species | Acanthepeira stellata Walckenaer, 1805 | Star-bellied orb-weaver | | Agelenopsis pennsylvanica Carl Ludwig ..., 1843 | | | Agelenopsis potteri John Blackwall, 1846 | Potter'S Grass Spider | | Agelenopsis utahana Ralph Vary C..., 1933 | | | Agroeca pratensis Emerton, 1890 | | | Apochinomma formica Eugène Simon, 1896 | | | Araneus diadematus Clerck, 1758 | Cross orbweaver | | Araneus marmoreus Clerck, 1757 | Marbled Orb Weaver | | Araneus miniatus Walckenaer, 1842 | | | Araneus nordmanni Thorell, 1870 | Nordmann'S Orbweaver | | Araneus saevus L. Koch, 1872 | Fierce Orbweaver | | Araneus trifolium Hentz, 1847 | Shamrock orbweaver | | Araniella displicata Hentz, 1847 | Six-spotted orbweaver | | Archaeodictyna ammophila Menge, 1871 | | | Argiope aurantia Lucas, 1833 | American garden spider | | Argiope trifasciata Forsskål, 1775 | Banded Argiope | | Asagena americana James Henry ..., 1882 | Two-Spotted Cobweb Spider | | Asca (Asca) garmani Hurlbutt, 1963 | | | Bassaniana versicolor Eugen von Ke..., 1880 | Bark Crab Spider | | Blattisocius keegani Fox, 1947 | Mite | | Carabodes scymnus Hull, 1914 | | | Castianeira longipalpa Nicholas Mar..., 1847 | | | Ceraticelus fissiceps Octavius Pic..., 1874 | | | Cheiracanthium mildei L. Koch, 1864 | North Yellow Sac Spider | | Clubiona abboti Ludwig Carl ..., 1866 | Redflower buckwheat | | Clubiona kastoni Willis J. Ge..., 1941 | Kaston sac spider | | Colonus sylvanus Hentz, 1846 | Jumping spiders | | Coras juvenilis Eugen von Ke..., 1881 | | | Cyclosa conica Pallas, 1772 | Conical Trashline Orbweaver | | Cyclosa turbinata Charles Atha..., 1842 | Orb weavers | | Dermacentor (Americentor) albipictus Packard, 1869 | Elk tick | | Dermacentor variabilis Say, 1821 | American dog tick | | Dictyna foliacea Nicholas Mar..., 1850 | | | Dolomedes tenebrosus (Nicholas Mar..., 1844) | ⇒ Dolomedes vittatus Charles Atha..., 1837 | | Dolomedes triton Charles Atha..., 1837 | Six Spotted Fishing Spider | | Drapetisca alteranda Ralph Vary C..., 1909 | Northern Long-Toothed Sheetweaver | | Drassyllus depressus Emerton, 1890 | | | Drassyllus niger Banks, 1896 | | | Drassyllus orgilus (Chamberlin, 1922) | ⇒ Drassyllus dromeus Chamberlin, 1922 | | Dysdera crocata (Koch, 1838) | ⇒ Dysdera maurusia Tord Tamerla..., 1873 | | Dysdera nomada Eugène Simon, 1910 | Stocky cerith | | Elaver excepta Ludwig Carl ..., 1866 | White Sac Spider | | Enoplognatha caricis Fickert, 1876 | | | Enoplognatha ovata (Clerck, 1758) | ⇒ Enoplognatha latimana Hippa & Oksala, 1982 | | Eris floridana Richard C. B..., 1904 | | | Eris militaris Nicholas Mar..., 1845 | Bronze jumper | | Euryopis quinquemaculata Banks, 1900 | | | Eustala anastera (Walckenaer, 1842) | ⇒ Eustala conchlea Henry Christ..., 1888 | | Evarcha hoyi (Peckham & Pe..., 1883) | ⇒ Evarcha proszynskii Marusik & Lo..., 1998 | | Frontinella pyramitela (Walckenaer, 1841) | ⇒ Frontinella communis Hentz, 1850 | | Gea heptagon Nicholas Mar..., 1850 | Heptagonal Orbweaver | | Habronattus decorus John Blackwall, 1846 | | | Habronattus texanus Ralph Vary C..., 1924 | | | Haplodrassus signifer (C. L. Koch, 1839) | ⇒ Haplodrassus pugnans Simon, 1880 | | Hentzia mitrata Nicholas Mar..., 1846 | Crowned Hentzia Jumping Spider | | Herpyllus ecclesiasticus Hentz, 1832 | Eastern parson spider | | Histiostoma (Histiostoma) heriades Fain & Pauly, 2001 | | | Hogna carolinensis Charles Atha..., 1805 | Carolina wolf spider | | Hogna frondicola James Henry ..., 1885 | Forest Wolf Spider | | Hypselistes florens Octavius Pic..., 1875 | Peatland Sheetweb Weaver | | Ixodes cookei (Packard, 1869) | ⇒ Ixodes conepati Cooley & Kohls, 1943 | | Larinioides cornutus Clerck, 1758 | Furrow orb spider | | Larinioides patagiatus Clerck, 1758 | Ornamental Orbweaver | | Latrodectus variolus (Walckenaer, 1837) | ⇒ Latrodectus hesperus Chamberlin &..., 1935 | | Leiobunum maculosus Wood, 1868 | | | Leiobunum ventricosum Wood, 1870 | | | Leiobunum vittatum Say, 1821 | Eastern Harvestman | | Maevia inclemens Charles Atha..., 1837 | Dimorphic jumper | | Mangora placida Hentz, 1847 | Tuft-Legged Orb Weaver | | Marpissa formosa Richard C. B..., 1892 | Short-Bellied Slender Jumping Spider | | Marpissa lineata Carl Ludwig ..., 1846 | | | Maso sundevalli (Johan Peter ..., 1851) | ⇒ Satilatlas marxi matanuskae Chamberlin, 1949 | | Mecaphesa asperata Nicholas Mar..., 1847 | Crab Spiders | | Mecaphesa celer Hentz, 1847 | Celer crab spider | | Microbisium parvulum Banks, 1895 | | | Misumena vatia Clerck, 1758 | Crab Spider | | Naphrys pulex Nicholas Mar..., 1846 | Flea Jumping Spider | | Neoantistea agilis Keyserling, 1887 | | | Neoantistea magna Eugen von Ke..., 1887 | | | Neon nelli Peckham & Pe..., 1888 | | | Neoscona arabesca Walckenaer, 1842 | Arabesque orbweaver | | Neoscona crucifera Lucas, 1838 | Barn spider | | Neriene clathrata Sundevall, 1830 | | | Neriene radiata Walckenaer, 1842 | Filmy dome spider | | Odiellus pictus Wood, 1879 | | | Oxyopes salticus Hentz, 1845 | Lynx spider | | Pachygnatha autumnalis Marx, 1884 | Big-Eyed Thick-Jawed Spider | | Pachygnatha tristriata C. L. Koch, 1845 | | | Parasteatoda tepidariorum C. L. Koch, 1841 | American house false widow spider | | Pardosa distincta (John Blackwall, 1846) | ⇒ Pardosa hyperborea Thorell, 1872 | | Pardosa milvina Nicholas Mar..., 1844 | Shore spider | | Pardosa saxatilis Nicholas Mar..., 1844 | | | Pelegrina galathea Charles Atha..., 1837 | Jumping Spiders | | Pelegrina proterva Charles Atha..., 1837 | Common White-Cheeked Jumping Spider | | Phalangium opilio Linnaeus, 1761 | Brown daddy-long-legs | | Phidippus audax (Nicholas Mar..., 1845) | ⇒ Salticus variegatus Hentz, 1845 | | Phidippus princeps Peckham & Pe..., 1883 | Grayish Jumping Spider | | Phidippus purpuratus Eugen von Ke..., 1885 | Marbled Purple Jumping Spider | | Philodromus marxi Eugen von Ke..., 1884 | Guinea ant | | Philodromus placidus Banks, 1892 | | | Philodromus praelustris Eugen von Ke..., 1880 | | | Philodromus rufus (Walckenaer, 1826) | ⇒ Philodromus albidus Wladislaus K..., 1911 | | Phrurotimpus alarius (Nicholas Mar..., 1847) | ⇒ Phrurotimpus borealis James Henry ..., 1911 | | Phrurotimpus borealis James Henry ..., 1911 | Greater Ant-Mimic Corinne Spider | | Pirata montanus Emerton, 1885 | Dark-Legged Pirate Wolf Spider | | Piratula minuta James Henry ..., 1885 | | | Pityohyphantes costatus Nicholas Mar..., 1850 | Hammock spider | | Platycryptus undatus De Geer, 1778 | Tan jumping spider | | Pseudeuophrys erratica (Walckenaer, 1826) | ⇒ Pseudeuophrys lanigera Simon, 1871 | | Rabidosa rabida Walckenaer, 1837 | Rabid Wolf Spider | | Salticus scenicus (Clerck, 1757) | ⇒ Salticus cingulatus Panzer, 1797 | | Schizocosa crassipalpata Carl Friedri..., 1951 | San Diego bird's-foot trefoil | | Schizocosa ocreata (Nicholas Mar..., 1844) | ⇒ Schizocosa rovneri Uetz & Charl..., 1979 | | Schizocosa saltatrix Nicholas Mar..., 1844 | | | Scotinella pugnata James Henry ..., 1890 | | | Sitticus fasciger Simon, 1880 | Jumping Spider | | Socalchemmis dolichopus Ralph Vary C..., 1919 | | | Spermophora senoculata Dugès, 1836 | Short-bodied cellar spider | | Sphodros niger Hentz, 1842 | Black purse-web spider | | Steatoda grossa C. L. Koch, 1838 | Brown house spider | | Steatoda triangulosa Walckenaer, 1802 | Triangulate bud spider | | Tegenaria domestica (Clerck, 1758) | ⇒ Tegenaria parietina Fourcroy, 1785 | | Tennesseellum formica James Henry ..., 1882 | | | Tetragnatha laboriosa Hentz, 1850 | Longjawed orb weavers | | Tetragnatha straminea Emerton, 1884 | | | Tetragnatha versicolor Walckenaer, 1842 | | | Thanatus formicinus (Clerck, 1758) | ⇒ Thanatus miniaceus Simon, 1880 | | Theridion differens (James Henry ..., 1882) | ⇒ Theridion glaucescens Lawrence Becker, 1879 | | Theridiosoma gemmosum L. Koch, 1877 | Ray Spider | | Tibellus maritimus Menge, 1875 | Goblin shark | | Tibellus oblongus (Walckenaer, 1802) | ⇒ Tibellus maritimus Menge, 1875 | | Tigrosa helluo Walckenaer, 1837 | Wetland Giant Wolf Spider | | Tmarus angulatus Charles Atha..., 1837 | Tuberculated Crab Spider | | Trachelas tranquillus Nicholas Mar..., 1847 | Broad faced sac spider | | Trochosa ruricola (De Geer, 1778) | ⇒ Trochosa hispanica Eugène Simon, 1870 | | Tutelina elegans Nicholas Mar..., 1846 | Thin-Spined Jumping Spider | | Tutelina harti Peckham, 1891 | Hart'S Jumping Spider | | Walchia (Wenia) isonychia Nadchatram &..., 1964 | | | Walckenaeria pallida James Henry ..., 1882 | | | Wulfila saltabundus Nicholas Mar..., 1847 | | | Xysticus elegans Eugen von Ke..., 1880 | Elegant crab spider | | Xysticus ferox Nicholas Mar..., 1847 | Tan Crab Spider | | Xysticus fraternus Richard C. B..., 1895 | | | Xysticus funestus Eugen von Ke..., 1880 | | | Xysticus luctans Carl Ludwig ..., 1845 | | | Xysticus triguttatus Keyserling, 1880 | Three-banded Crab Spider | | Zelotes hentzi Barrows, 1945 | | | Zygoballus nervosus Peckham & Pe..., 1888 | |
Subnodes of Arachnida with occurrences in Luzerne County
 | | Arachnida (Lamarck 1801) |
Links, sources and further information Arachnida at biolcoll.utu.fi Arachnida at wiki.spinnen-forum.de Arachnida at spiderling.de Arachnida at wsc.nmbe.ch Arachnida at artfakta.se Arachnida at biodiversity.org.au Arachnida at dyntaxa.se Arachnida at gbif.org Arachnida at irmng.org Arachnida at itis.gov Arachnida at marinespecies.org
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