Colossendeis Explained

Colossendeis is a genus of sea spider (class Pycnogonida) belonging to the family Colossendeidae.^[1] Phylogenetic analysis based on molecular data indicates that this genus is paraphyletic with respect to the genera Decolopoda and Dodecolopoda, which are found to be nested within the genus Colossendeis in a phylogenetic tree.^[2]

The genus Colossendeis includes the largest pycnogonids, with leg spans of about 40-. These sea spiders can be found in deep-sea.^[3]

The genus contains bioluminescent species.^[4]

Species

There are 72 species:^[1]

• Colossendeis acuta Stiboy-Risch, 1993
• Colossendeis adelpha Child, 1998
• Colossendeis angusta Sars, 1877
• Colossendeis aperta Turpaeva, 2005
• Colossendeis arcanus Turpaeva, 2008
• Colossendeis arcuata A. Milne-Edwards, 1885
• Colossendeis australis Hodgson, 1907
• Colossendeis avidus Pushkin, 1970
• Colossendeis belekurovi Pushkin, 1993
• Colossendeis bicincta Schimkewitsch, 1893
• Colossendeis bouvetensis Dietz, Pieper, Seefeldt & Leese, 2015
• Colossendeis brevirostris Child, 1995
• Colossendeis bruuni Fage, 1956
• Colossendeis clavata Meinert, 1899
• Colossendeis colossea Wilson, 1881
• Colossendeis concedis Child, 1995
• Colossendeis cucurbita Cole, 1909
• Colossendeis curtirostris Stock, 1963
• Colossendeis dalli Child, 1995
• Colossendeis drakei Calman, 1915
• Colossendeis elephantis Child, 1995
• Colossendeis enigmatica Turpaeva, 1974
• Colossendeis ensifer Child, 1995
• Colossendeis fijigrypos Bamber, 2004
• Colossendeis fragilis Pushkin, 1993
• Colossendeis gardineri Carpenter, 1907
• Colossendeis geoffroyi Mane-Garzon, 1944
• Colossendeis glacialis Hodgson, 1907
• Colossendeis gracilis Hoek, 1881
• Colossendeis grassus Pushkin, 1993
• Colossendeis hoeki Gordon, 1944
• Colossendeis insolitus Pushkin, 1993
• Colossendeis korotkevitschi Pushkin, 1984
• Colossendeis kurtchatovi Turpaeva, 1993
• Colossendeis leniensis Pushkin, 1993
• Colossendeis leptorhynchus Hoek, 1881
• Colossendeis longirostris Gordon, 1938
• Colossendeis losinskii Turpaeva, 2002
• Colossendeis macerrima Wilson, 1881
• Colossendeis media Hoek, 1881
• Colossendeis megalonyx Hoek, 1881
• Colossendeis melancholicus Stock, 1975
• Colossendeis mica Pushkin, 1970
• Colossendeis microsetosa Hilton, 1943
• Colossendeis minor Schimkewitsch, 1893
• Colossendeis minuta Hoek, 1881
• Colossendeis mycterismos Bamber, 2004
• Colossendeis nasuta Hedgpeth, 1949
• Colossendeis notialis Child, 1995
• Colossendeis oculifera Stock, 1963
• Colossendeis peloria Child, 1994
• Colossendeis perforata Turpaeva, 1993
• Colossendeis pipetta Stock, 1991
• Colossendeis potentis Turpaeva, 2008
• Colossendeis proboscidea (Sabine, 1824)
• Colossendeis pseudochelata Pushkin, 1993
• Colossendeis robusta Hoek, 1881
• Colossendeis rostrata Turpaeva, 1994
• Colossendeis scoresbii Gordon, 1932
• Colossendeis scotti Calman, 1915
• Colossendeis sinuosa Stock, 1997
• Colossendeis spicula Child, 1994
• Colossendeis stramenti Fry & Hedgpeth, 1969
• Colossendeis subminuta Schimkewitsch, 1893
• Colossendeis tasmanica Staples, 2007
• Colossendeis tenera Hilton, 1943
• Colossendeis tenuipedis Pushkin, 1993
• Colossendeis tethya Turpaeva, 1974
• Colossendeis tortipalpis Gordon, 1932
• Colossendeis vityazi Turpaeva, 1973
• Colossendeis weddellensis Turpaeva, 2008
• Colossendeis wilsoni Calman, 1915

Further reading

• Manfred Moritz: Ordnung Colossendeomorpha in: Urania Tierreich. Wirbellose Tiere 2. Urania-Verlag, Berlin 2000; Seite 327. .
• Tomás Munilla, Anna Soler Membrives: Check-list of the pycnogonids from Antarctic and sub-Antarctic waters: zoogeographic implications. Antarctic Science (2008) 1-13

Notes and References

1. Colossendeis Jarzynsky, 1870 . 2023 . 134586 . Pycnogonida . 18 August 2023.
2. Dietz . Lars . Dömel . Jana S. . Leese . Florian . Mahon . Andrew R. . Mayer . Christoph . 2019-07-01 . Phylogenomics of the longitarsal Colossendeidae: The evolutionary history of an Antarctic sea spider radiation . Molecular Phylogenetics and Evolution . 136 . 206–214 . 10.1016/j.ympev.2019.04.017 . 31002869 . 2019MolPE.136..206D . 1055-7903.
3. Staples . David A. . A new species of Colossendeis (Pycnogonida: Colossendeidae) together with records from Australian and New Zealand waters . Memoirs of Museum Victoria . 2007 . 64 . 79–94 . 10.24199/j.mmv.2007.64.8 . free .
4. Herring . Peter J. . Systematic distribution of bioluminescence in living organisms . Journal of Bioluminescence and Chemiluminescence . 1987 . 3. 1 . 147–163 . 10.1002/bio.1170010303 . 3503524 .