WoRMS source details
Barnich, Ruth; Orensanz, José; Fiege, Dieter. (2012). Remarks on some scale worms (Polychaeta, Polynoidae) from the Southwest Atlantic with notes on the genus Eucranta Malmgren, 1866, and description of a new Harmothoe species. Marine Biodiversity. 42(3): 395-410.
163732
Barnich, Ruth; Orensanz, José; Fiege, Dieter
2012
Remarks on some scale worms (Polychaeta, Polynoidae) from the Southwest Atlantic with notes on the genus Eucranta Malmgren, 1866, and description of a new Harmothoe species
Marine Biodiversity
42(3): 395-410
Publication
World Polychaeta Database (WPolyD)
Available for editors 
[request]
[request]
In a collection of polychaetes from the Southwest Atlantic, off the Argentinian coast, ten scale worm species of the family Polynoidae were found. The following nine species are already known to science and their synonymy, diagnostic characters, and distribution are given together with remarks on taxonomy and geographical distribution: Eucranta mollis (McIntosh, 1876), Eucranta notialis Monro, 1936, Harmothoe exanthema (Grube, 1858), Harmothoe magellanica (McIntosh, 1885), Polyeunoa laevis McIntosh, 1885, Halosydna patagonica Kinberg, 1856, Halosydnella australis (Kinberg, 1856), Lepidasthenia esbelta Amaral and Nonato, 1982 and Showapolynoe marmorata (Hartmann-Schröder, 1965) n. comb. Additionally, a new Harmothoe species was discovered and is described in detail. Differentiating characters of the new species and Harmothoe ciliata Monro, 1936 from the Magellan region are discussed. Since two species of Eucranta Malmgren, 1866 out of four known worldwide occur in the Southwest Atlantic and since the genus has never been revised in the past, we discuss the distinguishing characters of the species and present a synoptic table. Furthermore, we raise two subspecies to species level, i.e. Eucranta villosa notialis Monro, 1936 to E. notialis Monro, 1936 and Harmothoe brevipalpa ciliata Monro, 1936 to H. ciliata Monro, 1936. Two new junior synonyms are also recognised: Harmothoe fimbriata Hartmann-Schröder, 1965 is referred to H. ciliata Monro, 1936 and Halosydna brasiliensis Kinberg, 1857 to Halosydnella australis (Kinberg, 1856). An identification key is given to all species found in the considered area.
South Atlantic
Eucranta Malmgren, 1865 (additional source)
Eucranta mollis (McIntosh, 1876) (redescription)
Eucranta notialis Monro, 1936 (status source)
Eucranta villosa notialis Monro, 1936 accepted as Eucranta notialis Monro, 1936 (taxonomy source)
Halosydna brasiliensis Kinberg, 1858 accepted as Halosydnella australis (Kinberg, 1856) (source of synonymy)
Halosydna glabra Hartman, 1939 (additional source)
Halosydna grisea Treadwell, 1929 accepted as Halosydnella australis (Kinberg, 1856) (status source)
Halosydna marmorata Hartmann-Schröder, 1965 accepted as Showapolynoe marmorata (Hartmann-Schröder, 1965) (new combination reference)
Halosydna patagonica Kinberg, 1856 (additional source)
Halosydnella Hartman, 1938 (additional source)
Halosydnella brasiliensis (Kinberg, 1858) accepted as Halosydnella australis (Kinberg, 1856) (source of synonymy)
Harmothoe brevipalpa ciliata Monro, 1936 accepted as Harmothoe ciliata Monro, 1936 (taxonomy source)
Harmothoe ciliata Monro, 1936 (status source)
Harmothoe fimbriata Hartmann-Schröder, 1965 accepted as Harmothoe ciliata Monro, 1936 (source of synonymy)
Harmothoe impar ciliata Monro, 1936 accepted as Harmothoe ciliata Monro, 1936 (taxonomy source)
Harmothoe madrynensis Barnich, Orensanz & Fiege, 2012 (original description)
Showapolynoe Imajima, 1997 (additional source)
Showapolynoe marmorata (Hartmann-Schröder, 1965) (new combination reference)
Eucranta mollis (McIntosh, 1876) (redescription)
Eucranta notialis Monro, 1936 (status source)
Eucranta villosa notialis Monro, 1936 accepted as Eucranta notialis Monro, 1936 (taxonomy source)
Halosydna brasiliensis Kinberg, 1858 accepted as Halosydnella australis (Kinberg, 1856) (source of synonymy)
Halosydna glabra Hartman, 1939 (additional source)
Halosydna grisea Treadwell, 1929 accepted as Halosydnella australis (Kinberg, 1856) (status source)
Halosydna marmorata Hartmann-Schröder, 1965 accepted as Showapolynoe marmorata (Hartmann-Schröder, 1965) (new combination reference)
Halosydna patagonica Kinberg, 1856 (additional source)
Halosydnella Hartman, 1938 (additional source)
Halosydnella brasiliensis (Kinberg, 1858) accepted as Halosydnella australis (Kinberg, 1856) (source of synonymy)
Harmothoe brevipalpa ciliata Monro, 1936 accepted as Harmothoe ciliata Monro, 1936 (taxonomy source)
Harmothoe ciliata Monro, 1936 (status source)
Harmothoe fimbriata Hartmann-Schröder, 1965 accepted as Harmothoe ciliata Monro, 1936 (source of synonymy)
Harmothoe impar ciliata Monro, 1936 accepted as Harmothoe ciliata Monro, 1936 (taxonomy source)
Harmothoe madrynensis Barnich, Orensanz & Fiege, 2012 (original description)
Showapolynoe Imajima, 1997 (additional source)
Showapolynoe marmorata (Hartmann-Schröder, 1965) (new combination reference)
Puerto Madryn for Harmothoe madrynensis Barnich, Orensanz & Fiege, 2012
Syntype SMF 19913, verbatimGeounit Playa Mimosa, Puerto..., identified as Harmothoe madrynensis Barnich, Orensanz & Fiege, 2012
Diagnosis
After Barnich, Orensanz & Fiege (2012): Body flattened dorsoventrally, elongate, with about 45 segments. Elytra ... [details]
Etymology
named after the type locality of Puerto Madryn, Argentina. [details]
Taxonomy
According to Barnich et al (2012:406) "Hartman (1938) had already suspected the synonymy with Halosydnella ... [details]
Type locality
Playa Mimosa, Puerto Madryn, Nuevo Gulf, Argentina, SW Atlantic, intertidal, -42.764028, -65.03211 (Gazeteer estimate) [details]
