Phylum Porifera Grant 1926, sponges

There is no generally accepted classification of the existing pycnogonids in orders. The existing species are often considered as order Pantopoda, and the extinct species - as order Paleopantopoda.

Order Pantopoda

Phylum Tardigrada Ramazzotti 1962, tardigrades, water bears, or moss piglets

Authors: O.A. Sorokinaа, A.V. Tchesunov

Class Heterotardigrada Marcus 1927

Order Arthrotardigrada Marcus 1927

Class Eutardigrada Marcus 1927

Order Apochela Schuster et al. 1980

Order Parachela Schuster et al. 1980

Phylum Nematoda Rudolphi 1808, nematodes, or roundworms

E.D. Valter, A.V. Tchesunov

Class Enoplea Inglis 1983

Order Enoplida Filipjev 1918

Order Mermithida Hyman 1951

Class Chromadorea Inglis 1983

Order Chromadorida Filipjev 1929

Order Desmodorida De Coninck 1965

Order Plectida Malakhov 1982

Order Araeolaimida De Coninck et Schuurmans Sttekhoven 1933

Order Monhysterida Filipjev 1929

Order Desmoscolecida Filipjev 1929

Order Ascaridida Skrjabin et Schulz 1940

Order Spirurida Chitwood 1933

Phylum Cephalorhyncha Malakhov 1980

Class Priapulida Delage et Herouard 1897, priapulid worms, penis worms

Author: A.V. Tchesunov

Order Priapulomorpha Salvini-Plawen 1974

Order Halicryptomorpha Adrianov et Malakhov 1995

Class Kinorhyncha Reinhard 1881, kinorhynchs, mud dragons

Author: A.V. Tchesunov

Order Homalorhagida Zelinka 1896

Order Cyclorhagida Zelinka 1896

Phylum Gastrotricha Metschnikoff 1865, gastrotrichs, hairy backs

Authors: E.I. Tretjakova, A.V. Tchesunov

Authors' own data, non-published

Order Chaetonotoidea Remane 1924

Phylum Rotifera Cuvier 1798, rotifers, wheel animals

Author: A.A. Lvova

Author's own data if there is no other stated reference.

Order Ploimida Hudson et Gosse 1886

Order Monimotrochida Beauchamp 1965

Order Paedotrochida Beauchamp 1965

Phylum Acanthocephala Rudolphi 1808, acanthocephales, thorny/spiny-headed worms

Author: L.A. Gichenok

Order Palaeacanthocephala Meyer 1931

Phylum Phoronida Hatschek 1888, phoronids

Author: E.N. Temereva

Class Phoronida

Family Phoronidae Temereva 2005

Genus Phoronis Wright 1856

Phoronis ovalis (Wright 1856) – marine, sub-littoral, benthic, sedentary. – Темерева, 2006.

Phylum Bryozoa Ehrenberg 1831, moss animals

For species found near the MSU WSBS, the list is compiled by Н.М. Калякина based on the list received from А.В. Кубанин in 1983, and on the book by М.Г. Гостиловская (1978). Also includes species from the White Sea samples and classifications by G.B. Zevina.

All marine, sublittoral.

Class Gymnolaemata Allman 1856

Order Cyclostomata Busk 1852

Order Ctenostomata Busk 1852

Order Cheilostomata Busk 1852

Phylum Brachiopoda Demuril 1806, brachiopods

Class Articulata Huxley 1869

Order Rhynchonellida Kuhn 1949

Phylum Chaetognathа Leuckar 1854 - arrow worms

Class Sagittoidea Claus & Grobben 1905

Order Aphragmophora Tokioka 1965

Phylum Hemichordata Bateson 1885

Class Enteropneusta

Family Harrimaniidae Spengel 1901

Genus Saccoglossus Schimkewitsch 1892

Saccoglossus mereschkowskii Wagner 1885 – marine, sublittoral – Броцкая и др., 1963.

Phylum Echinodermata (Klein 1734), echinoderms

Authors: N.M. Litvinova, A.V. Smirnov

All marine, bottom-dwelling.

Class Asteroidea de Blainville 1830, starfish, or sea stars

Order Forcipulatida Pérrier 1884

Order Spinulosida Pérrier 1884

Class Ophiuroidea Gray 1840, brittle stars

Order Phrynophiurida Matsumoto 1915

Order Ophiurida Müller & Troschel 1840

Class Echinoidea Leske 1778, sea urchins

Order Echinoida Claus, 1876

Class Holothuroidea de Blainville 1834, sea cucumbers

Order Dendrochirotida Grube 1840

Order Apodida Brandt 1835

Phylum Chordata Bateson 1885 - chordates

Subphylum Tunicata Lamarck 1816 - tunicates or urochordates

Class Ascidiacea - ascidians or sea squirts

Order Aplousobranchia Lahille 1887

Order Phlebobranchiata Lahille 1887

Order Stolidobranchia Lahille 1887

Class Appendicularia Brown 1862

Author: N.M. Pertzova

All marine, planktonic

Order Copelata

Subphylum Vertebrata Cuvier 1812, vertebrates

'Lampreys and fishes'

Author: V.V. Mahotin

Class Petromyzones, lampreys

Order Petromyzoniformes

Class Elasmobranchii

Order Squaliformes

Order Rajiformes

Class Osteichthyes, bony fish

Order Clupeiformes

Order Salmoniformes

Order Cypriniformes

Order Gadiformes

Order Gasterosteiformes

Order Perciformes

Order Scorpeniformes

Order Pleuronectiformes

Class Amphibia Linnaeus 1758, amphibians

Author: V.N.Kalyakin

Order Anura Rafinesque 1815, tailless amphibians

Class Reptilia Linnaeus 1758, reptiles

Author: V.N.Kalyakin

Order Squamata Oppel, scaled reptiles

Class Aves, birds

Authors: V.N. Kalyakin, M.V. Kalyakin, I.N. Panov

Including data of I.N. Panov (Bird Ringing Centre of Russia), and unpublished data by V.I. Voronetsky, G.S.Eremkin, P.V. Kvartalnov, V.V. Kontorschikov, E.Yu. Zamesov and publications by: Bianki & Flerov (1960, in Russian), Bianki et al. (1993, in Russian), Blagosklonov (1960, in Russian) and Kohanov (1999, in Russian), as well as 2001-2013 data of Bird ringing station in Chernaya Rechka village 2001-2013.

Chernaya Rechka village where Bird ringing station is situated 3 km apart from the main area covered by the Catalogue. In spite of the Ringing station formally is situated away from the main area the habitats are similar. Both sites are surrounded by the same woodland. The difference is that the main area lacks river, as well as river mouth, tere are no pastures, gardens and clearenses covered with bushes near Biological station, so the number of species connected with anthropogenically transformed areas is significantly less. These differences were considered when the lists were combined, and data on the species included to the Catalogue only from the Ringing station list are specially noted. If there are no special notes we consider the species status same.