Checklist of marine and freshwater halacarid mite genera and species (Halacaridae: Acari) with notes on synonyms, habitats, distribution and descriptions of the taxa

Abstract

At the end of 2007, the family Halacaridae, superfamily Halacaroidea, included 1118 valid species in 63 genera. The genera and the number of species (in parentheses) are: Acanthohalacarus (1), Acanthopalpus (2), Acarochelopodia (8), Acaromantis (11), Acarothrix (5), Actacarus (24), Agaue (42), Agauides (2), Agauopsis (85), Anomalohalacarus (19), Arenihalacarus (1), Arhodeoporus (31), Astacopsiphagus (1), Atelopsalis (7), Australacarus (5), Bathyhalacarus (12), Bradyagaue (17), Camactognathus (3), Caspihalacarus (1), Coloboceras (3), Colobocerasides (2), Copidognathides (3), Copidognathus (359), Corallihalacarus (1), Enterohalacarus (1), Halacarellus (47), Halacaroides (2), Halacaropsis (5), Halacarus (75), Halixodes (3), Hamohalacarus (1), Himejacarus (1), Isobactrus (26), Limnohalacarus (13), Lobohalacarus (6), Lohmannella (36), Metarhombognathus (2), Mictognathus (3), Parasoldanellonyx (3), Parhalixodes (2), Pelacarus (1), Peregrinacarus (2), Phacacarus (1), Porohalacarus (2), Porolohmannella (1), Rhombognathides (6), Rhombognathus (103), Ropohalacarus (1), Scaptognathides (11), Scaptognathus (30), Simognathus (45), Soldanellonyx (9), Spongihalacarus (1), Stygohalacarus (1), Thalassacarus (1), Thalassarachna (14), Thalassophthirius (1), Troglohalacarus (1), Tropihalacarus (2), Werthella (10), Werthelloides (1), Winlundia (2), and Xenohalacarus (1). More than 1000 species live in marine and brackish water and almost 60 species exclusively in fresh or oligohaline to mesohaline brackish water (< S18‰). The checklist presents names used for halacarid genera and species of the world, names recognized as valid, synonyms, nomina nuda, names of species inquirendae and species erroneously attributed to the family Halacaridae. All valid species are supplemented with distributional data, namely, biogeographical provinces, depth zones and habitats, and references of descriptions of genera and species.

Spermatogenesis, sperm cell morphology and accompanying secretions from two interstitial marine mites

“…The family Halacaridae is remarkable for being the single arachnid group to occupy every aquatic habitat from freshwater streams to marine hydrothermal vents, and it comprises at least 1118 species classified into 63 genera (Bartsch ). To date, the sperm cell morphology is known in six halacarid species, Thalassarachna basteri (Jonhston, 1836), Halacarellus thomasi (Newell, 1984), Rhombognathus levigatoides Pepato and da Rocha ; Copidognathus floridensis Newell, 1947, C .…”

Halacarus actenos Trouessart, 1889 (Halacaridae, Acari)’un Portekiz’den İlk Kaydı

“…H. actenos was previously recorded from UK, Ireland, The Netherlands, France Atlantic coasts (Bay of Morlaix, Le Croisic, Baie de Port-lin, Arcachon, Saint Jean-de-Luz), Spain and USA (Florida). But, Bartsch (2009;2011) outlined that record from USA (Florida) by (Newell, 1947) is need confirmation. This is the first record of H. actenos from Portugal and constitutes the second record for the Iberian Peninsula.…”

“…The cosmopolitan halacarid genus Halacarus Gosse 1855 with more than 70 species have been described worldwide (Bartsch, 2009). Most of the Halacarus species lack a posterior dorsal plate.…”

New record of Copidognathus andhraensis (Acari: Halacaridae) from the west coast of India, Arabian Sea

“…Copidognathus is most species rich genus in the family Halacaridae (see Bartsch, 2009). In India, species of the genus Copidognathus were recorded from Chilka lagoon, Odisha, east coast of India (Chatterjee, 1991a;Chatterjee, Sarma, 1993); Visakhapatnam, Andhra Pradesh, east coast of India (Chatterjee, 1991b, Chatterjee, Annapurna, 2002; Kerala, west coast of India (Chatterjee, Sarma, 1993;; Maharastra, west coast of India ; Goa, west coast of India (Chatterjee, Guru, 2011;Chatterjee, 2015) and Andaman & Nicobar Islands (Chatterjee, 1991c(Chatterjee, , 1992(Chatterjee, , 1995(Chatterjee, , 1996(Chatterjee, , 1997(Chatterjee, , 1999aChatterjee, De Troch, 2003;Sarma, Chatterjee, 1991;Chatterjee, Guru, 2013).…”