WoRMS taxon details
Manayunkia speciosa Leidy, 1859
155021 (urn:lsid:marinespecies.org:taxname:155021)
accepted
Species
Manayunkia eriensis Krecker, 1939 · unaccepted (subjective synonym)
recent only
Leidy, Joseph. (1859 [for 1858]). "Manayunkia speciosa" [untitled meeting report]. <em>Journal of the Academy of Natural Sciences of Philadelphia.</em> 10: 90., available online at https://biodiversitylibrary.org/page/47535683
page(s): 90 [no figures] [details]
page(s): 90 [no figures] [details]
Note Schuylkill River, Pennsylvania, also known as...
From editor or global species database
Type locality Schuylkill River, Pennsylvania, also known as Manayunk River (fide Leidy, 1859 [details]
Description Original description: "Dr. Leidy called the attention of the members to a drawing of a curious worm, which he said was...
Description Original description: "Dr. Leidy called the attention of the members to a drawing of a curious worm, which he said was obtained from the Schuylkill river, and was interesting from its being more nearly allied to marine forms than any other known fresh water species. It lives in tubes of mud; and is about a line in length. The body is divided into twelve annuli, including the head, which is cup-shaped, has two eyes, and supports on each side a process provided with seventeen cylindrical ciliated arms. The rings, except the head, are provided with four rows of bristles and two rows of podal hooks. The bristles are from four to six in a bunch; those anteriorly having a falcate extremity, and those posteriorly being whip-like. The anterior hooks are in series of five; and have a long handle with a lancet-like extremity. The posterior hooks are from fifteen to twenty in a series, and have a long handle with the extremity expanded and serrated on one side. It appears to be most nearly allied to the marine genus Fabricia. He proposed for it the name Manayunkia speciosa, from the Indian name of the river in which it was first discovered." [details]
Read, G.; Fauchald, K. (Ed.) (2025). World Polychaeta Database. Manayunkia speciosa Leidy, 1859. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=155021 on 2025-04-15
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Nomenclature
original description
Leidy, Joseph. (1859 [for 1858]). "Manayunkia speciosa" [untitled meeting report]. <em>Journal of the Academy of Natural Sciences of Philadelphia.</em> 10: 90., available online at https://biodiversitylibrary.org/page/47535683
page(s): 90 [no figures] [details]
original description (of Manayunkia eriensis Krecker, 1939) Krecker, Frederick H. 1939. Polychaete annelid worms in the Great Lakes. Science, N.Y., 89(2303): 153. [details]
page(s): 90 [no figures] [details]
original description (of Manayunkia eriensis Krecker, 1939) Krecker, Frederick H. 1939. Polychaete annelid worms in the Great Lakes. Science, N.Y., 89(2303): 153. [details]
Taxonomy
taxonomy source
Leidy, Joseph. (1860 [for 1859]). "Manayunkia speciosa" [meeting report]. <em>Journal of the Academy of Natural Sciences of Philadelphia.</em> 11:2., available online at https://biodiversitylibrary.org/page/1652960 [details]
redescription Leidy, Joseph. (1884 [1883 year]). Manayunkia speciosa. <em>Journal of the Academy of Natural Sciences of Philadelphia.</em> 35:204-212, 1 plate., available online at https://biodiversitylibrary.org/page/26279862
page(s): 204; note: first full description, first figure [details]
redescription Leidy, Joseph. (1884 [1883 year]). Manayunkia speciosa. <em>Journal of the Academy of Natural Sciences of Philadelphia.</em> 35:204-212, 1 plate., available online at https://biodiversitylibrary.org/page/26279862
page(s): 204; note: first full description, first figure [details]
Ecology
ecology source
Holmquist, Charlotte 1967. Manayunkia speciosa Leidy - a fresh-water polychaete found in northern Alaska. Hydrobiologia 29(3/4): 297-304. [details]
Other
additional source
Hartman, Olga. (1959). Catalogue of the Polychaetous Annelids of the World. Parts 1 and 2. <em>Allan Hancock Foundation Occasional Paper.</em> 23: 1-628. [details] Available for editors 
[request]
additional source Armendariz, Laura C.; Paola, Analía; Rodrigues Capítulo, Alberto. (2011). Manayunkia speciosa Leidy (Polychaeta: Sabellidae): introduction of this nonindigenous species in the Neotropical Region (Uruguay river, South America). <em>Biological Invasions.</em> 13(2): 281-284., available online at https://link.springer.com/article/10.1007%2Fs10530-010-9838-0
note: A misidentification of Monroika clarae. Manayunkia speciosa is not introduced to Argentina [details]
[request]additional source Armendariz, Laura C.; Paola, Analía; Rodrigues Capítulo, Alberto. (2011). Manayunkia speciosa Leidy (Polychaeta: Sabellidae): introduction of this nonindigenous species in the Neotropical Region (Uruguay river, South America). <em>Biological Invasions.</em> 13(2): 281-284., available online at https://link.springer.com/article/10.1007%2Fs10530-010-9838-0
note: A misidentification of Monroika clarae. Manayunkia speciosa is not introduced to Argentina [details]
Present Present in aphia/obis/gbif/idigbio Inaccurate Introduced: alien Containing type locality
From editor or global species database
Description Original description: "Dr. Leidy called the attention of the members to a drawing of a curious worm, which he said was obtained from the Schuylkill river, and was interesting from its being more nearly allied to marine forms than any other known fresh water species. It lives in tubes of mud; and is about a line in length. The body is divided into twelve annuli, including the head, which is cup-shaped, has two eyes, and supports on each side a process provided with seventeen cylindrical ciliated arms. The rings, except the head, are provided with four rows of bristles and two rows of podal hooks. The bristles are from four to six in a bunch; those anteriorly having a falcate extremity, and those posteriorly being whip-like. The anterior hooks are in series of five; and have a long handle with a lancet-like extremity. The posterior hooks are from fifteen to twenty in a series, and have a long handle with the extremity expanded and serrated on one side. It appears to be most nearly allied to the marine genus Fabricia. He proposed for it the name Manayunkia speciosa, from the Indian name of the river in which it was first discovered." [details]Identification The identification of an Argentine fabriciid as an introduced Manayunkia speciosa was incorrect according to Bick & Armendáriz, 2021, who describe the species as Monroika clarae [details]
Type locality Schuylkill River, Pennsylvania, also known as Manayunk River (fide Leidy, 1859 [details]
