Lohmannella falcata (Hodge 1863)
- Dataset
- Taxonomic review of the subfamily Lohmannellinae (Acari: Trombidiformes Halacaridae) with morphological comparisons among genera
- Rank
- SPECIES
Classification
- kingdom
- Animalia
- phylum
- Arthropoda
- class
- Arachnida
- order
- Trombidiformes
- family
- Halacaridae
- genus
- Lohmannella
- species
- Lohmannella falcata
description
Habitat. Littoral – Bathyal zones (0 – 2992 m): Coarse sands, gravels, shell fragments, sediments with Lima hians, Lasaea rubra (Bivalvia), algae (Corallina officinalis, Corallina spp., Porphyra umbilialis, Phyllophora spp., Laurencia obtusa, Laurencia pinnatifida, Lithothamnion spp. (Rhodophyta), Cystoseira crinita, Fucus serratus, Laminaria digitata, Laminaria ochroleuca, Alaria macroptera, Stictyosiphon tortillis, Chordaria flagelliformis (Phaeophyta), Enteromorpha spp., Ulva lactuca, Cladophora spp. (Chlorophyta )), Laminaria - hapteres, sponges, mussels (Mytilus edulis, Mytilus spp., Modiolus spp.), barnacles (Semibalanus balanoides), bryozoans, hydroids, ascidians (Ascidiella aspersa), and lichens (Lichina pygmaea). Distribution. North Atlantic Ocean: St. Andrews, New Brunswick, Rhode Island, Pettaquamscutt, Block Island [USA]. Hatte Sund, Bergen [Norway]. Skagerrak coast, Trosa (Askö Is.), Bonden Is., Hindersön (Gulf of Bothnia) [Sweden]. Store Baelt, Langeland Baelt, Öresund [Denmark]. Heiligenhafen, Kiel (Kieler Förde), Sylt, Helgoland, Scholpin-, Stolper-, Mittel- and Hoborg-Bank [Germany]. Den Helder, Vlissingen [Netherlands]. Pasvde-Calais, Wimereux, Grandcamp-les-Bains, St. Marcouf, Omonville-la-Rogue, Granville, Roscoff (Bay of Morlaix), Le Croisic (Bay of Biscay), Bay of Arcachon [France]. Mouro Is. (43 ° 28 ’ 24 ’’ N, 3 ° 45 ’ 22 ’’ W) [Spain]. West Cork, West Galway, Blacksod Bay, West Donegal [Ireland]. St. Andrews, Northumberland, Cullercoats, Sunderland, Seaham, Whitby, Robin Hood’s Bay (Yorkshire coast), Norfolk, Whitstable, Herne bay, Duke Rock, Dorset, Devon, Plymouth, Cornwall, Scilly Isles, Gower Peninsula, Pembrokeshire, Dale, Bangor, Caernarvon, Menai Straits, Isle of Cumbrae, Down, Strangford Narrows, Hebrides, Shetlands [UK]. Mediterranean: Banyuls-sur-Mer, Le Troc, Les Elmes, Peyrefitte, Île If, Île Ratonneau [France]. Meloria [Italy]. Hamitbey Plajý (Antalya) [Turkey]. Split [Dalmatia (Croatia)]. Monaco [Monaco]. Black Sea: Sozopol, Burgas, Pomorie, Anchialo [Bulgaria]. Vama Veche, Agigea, Danube Delta [Romania]. Odessa Bay [Ukraine]. Caucasian coast [Russia]. North Pacific Ocean: Provideniya, Zaliv Kresta, Kamchatka, Kuril Is. (Paramushir, Simushir) [Russia]. South Pacific Ocean: Tiera del Fuego [Argentina]. Indian Ocean: Kerguelen Is. [France]. Antarctic Ocean: George V Coast, Palmer Archipelago, Victoria Land, Port- Lockroy, Peterman Is., Gauss-Station, Wilhelm II Coast [Antarctica]. References. André (1928, 1933, 1940, 1946), Andre & Lamy (1930), Angelier (1950, 1951, 1953 a), Antipa (1941), Arndt & Viets (1939), Baçesco (1963), Baker (1982), Bamber (1982), Bartsch (1972, 1973 a, b, 1975, 1976, 1977 b, 1978 a, 1979 a, d, e, 1982 b, 1983, 1985 a, b, 1986 b, 1988 b, 1989 a, b, c, 1991 b, 2004 b), Bartsch & Smit (2006), Brady (1875), Chartosia et al. (2018), Chichkoff (1907, 1912), Dahl (1948), Dalenius (1965), Delamare Deboutteville (1954), Farran (1915), Fountain (1949, 1953), Gadeau de Kerville (1894, 1898, 1901), Giard (1888), Gimbel (1919), Green & Macquitty (1987), Gressitt (1967), Hagerman (1966), Halbert (1915), Hallas (1978), Hamond (1973), Hodge (1863), Imamura (1968), Kautsky (1974), Konnerth-Ionescu (1971 a, b, 1981), Kramer (1879), Kussakin & Ivanova (1978), Kussakin et al. (1978), Lohmann (1889, 1893 a, b, 1901, 1907 a, b), Makarova (1976, 1977, 1978), Makkaveeva (1965), Marinov (1964), Morselli (1969), Motaş (1961), Motaş & Şoarec (1940), Motaş & Tanasachi (1962), Murray (1877), Newell (1947, 1951 b, 1967, 1984), Petrova (1979, 1984), Pugh (1988), Pugh & King (1985), Remane (1955), Riesgo et al. (2010), Schulz (1933, 1935), Sokolov (1952), Sokolov & Yankovskaya (1972), Somerfield (1988, 1991), Somerfield & Jeal (1996), Svenonius (1949), Thor (1931), Trouessart (1888 a, b, 1889 a, b, 1893, 1896 b, 1914), Trouessart & Neumann (1894 a, b, 1896, 1898, 1901, 1907), Valkanov (1957), Viets (1927 a, c, 1928 a, c, 1931, 1936, 1940, 1941, 1950 a), Vorobyeva & Yaroshenko (1979). Depository. HMN.
diagnosis
Diagnosis. Two corneae usually present (varies 0 – 2). Ds- 2 on membranous cuticle. Ds- 3 on membranous cuticle. Two dorsal setae on PE. Female with 32 – 34 Pgs and 8 Sgs. Male with 75 – 79 Pgs and 8 Sgs. Tr I – IV with 1 - 1 - 1 - 1 setae; Bf I – IV with 3 - 3 - 3 - 3 setae; Tf I – IV with 6 - 7 - 5 - 5 setae; Gn I – IV with 8 - 8 - 5 - 5 setae, (2 – 4) - 4 - 2 - 2 Bp setae; Tb I – IV with 11 - 9 - 7 - 6 setae, (5,6) - 5 - 4 - 3 Bp setae; Ta I – IV with 3 - 3 - 4 - (3,4) dorsal setae, (1,2) - 1 - 2 - 1 Bp setae. Lc I with either no or unidentate accessory process. Idiosoma length 298 – 515 in female, 335 – 490 in male, 298 – 402 in DN, 240 – 292 in PN, 168 in LV. Idiosoma width 291 (idiosoma length 374) and 308 (idiosoma length 375) in male. Gnathosoma length 232 – 260 (idiosoma length 397 – 417) in female, 218 (idiosoma length 375) in male. Ratio of gnathosoma to idiosoma 0.56 – 0.65. Ratio of P- 2 to P- 1 3.70 – 4.40. Remarks. The species was originally described by Hodge (1863) under the name of Leptognathus falcatus. Trouessartella falcata Lohmann, 1901 and Leptognathus marinus Lohmann, 1889 are equivalent to this species. This species has very long rostrum and palpi. In the male, the genital foramen is surrounded by a dense corona of more than 60 Pgs and flanked by 4 or 5 pairs of outlying setae. Female, male, DN, PN, and LV are known.
Name
- Synonyms
- Trouessartella falcata subsp. beringi Newell
- Homonyms
- Lohmannella falcata (Hodge 1863)