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Baker, H. R.; Brinkhurst, R. O. (1981). A revision of the genus Monopylephorus and redefinition of the subfamilies Rhyacodrilinae and Branchiurinae (Tubificidae: Oligochaeta). Canadian Journal of Zoology. 59(6): 939-965.
280139
Baker, H. R.; Brinkhurst, R. O.
1981
A revision of the genus Monopylephorus and redefinition of the subfamilies Rhyacodrilinae and Branchiurinae (Tubificidae: Oligochaeta).
Canadian Journal of Zoology
59(6): 939-965.
Publication
Available for editors  PDF available [request]
The genus Monopylephorus Levinsen, 1884 is revised, and divided into three genera. Monopylephorus includes rubroniveus, limosus, kermadecensis, parvus, irroratus, aucklandicus, and the new species cuticulatus and evertus. Rhizodrilus Smith, 1900 includes lacteus, africanus, pacificus, lowryi, and arthingtonae, the last two being transferred from Torodrilus Cook, 1970 and Rhyacodrilus Bretscher, 1901 respectively. Peristodrilus gen.nov. contains the single species montanus. Two other species (M. longisetosus and M. frigidus) will be referred to a new genus within the Phallodrilinae rather than the Rhyacodrilinae. The single member of the Branchiurinae, Branchiura sowerbyi Beddard, 1892 is related to both Rhizodrilus and Bothrioneurum Stolc, 1888 and is included with the Rhyacodrilinae. Telmatodrilus multiprostatus does not usually have its spermathecae in IX but in X as normal, and is not related to Rhizodrilus.The diffuse prostates in some Rhyacodrilinae may have groups of cells penetrating the muscle layers of the atria, somewhat resembling the clustered cells of the Telmatodrilinae, but with the cell bodies still forming a continuous atrial covering.The forward relocation of the spermathecae in Rhizodrilus and their absence in Bothrioneurum seems to be related to the development of large copulatory bursae in XI and the occupation of much of X by atria and vasa deferentia.
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Checked: verified by a taxonomic editorLittodrilus aucklandicus (Benham, 1909) accepted as Checked: verified by a taxonomic editorMonopylephorus aucklandicus (Benham, 1909) (source of synonymy)
Checked: verified by a taxonomic editorMonopylephorus Levinsen, 1884 (redescription)
Checked: verified by a taxonomic editorMonopylephorus africanus Michaelsen, 1913 accepted as Checked: verified by a taxonomic editorRhizodrilus africanus (Michaelsen, 1913) (new combination reference)
Checked: verified by a taxonomic editorMonopylephorus aucklandicus (Benham, 1909) (redescription)
Checked: verified by a taxonomic editorMonopylephorus cuticulatus Baker & Brinkhurst, 1981 (original description)
Checked: verified by a taxonomic editorMonopylephorus evertus Baker & Brinkhurst, 1981 (original description)
Checked: verified by a taxonomic editorMonopylephorus helobius Loden, 1980 accepted as Checked: verified by a taxonomic editorMonopylephorus rubroniveus Levinsen, 1884 (source of synonymy)
Checked: verified by a taxonomic editorMonopylephorus irroratus (Verrill, 1873) (source of synonymy)
Checked: verified by a taxonomic editorMonopylephorus limosus (Hatai, 1898) (redescription)
Checked: verified by a taxonomic editorMonopylephorus pacificus Brinkhurst & Baker, 1979 accepted as Checked: verified by a taxonomic editorRhizodrilus pacificus (Brinkhurst & Baker, 1979) (new combination reference)
Checked: verified by a taxonomic editorMonopylephorus parvus Ditlevsen, 1904 (additional source)
Checked: verified by a taxonomic editorPeristodrilus Baker & Brinkhurst, 1981 (new combination reference)
Checked: verified by a taxonomic editorPostiodrilus sonderi Boldt, 1926 accepted as Checked: verified by a taxonomic editorMonopylephorus trichochaetus Ditlevsen, 1904 accepted as Checked: verified by a taxonomic editorMonopylephorus irroratus (Verrill, 1873) (source of synonymy)
Checked: verified by a taxonomic editorRhizodrilus africanus (Michaelsen, 1913) (redescription)
Checked: verified by a taxonomic editorRhizodrilus arthingtonae (Jamieson, 1978) (new combination reference)
Checked: verified by a taxonomic editorRhizodrilus aucklandicus Benham, 1909 accepted as Checked: verified by a taxonomic editorMonopylephorus aucklandicus (Benham, 1909) (source of synonymy)
Checked: verified by a taxonomic editorRhizodrilus kermadecensis Benham, 1915 accepted as Checked: verified by a taxonomic editorMonopylephorus kermadecensis (Benham, 1915) (source of synonymy)
Checked: verified by a taxonomic editorRhizodrilus lacteus Smith, 1900 (redescription)
Checked: verified by a taxonomic editorRhizodrilus montanus HrabÄ›, 1962 accepted as Checked: verified by a taxonomic editorPeristodrilus montanus (HrabÄ›, 1962) (new combination reference)
Checked: verified by a taxonomic editorTorodrilus lowryi Cook, 1970 (additional source)
Northern Provinces for Checked: verified by a taxonomic editorRhizodrilus africanus (Michaelsen, 1913) 
Holotype USNM 61791, locality Canadian Exclusive Economic Zone [Pacific part], identified as Monopylephorus cuticulatus Baker & Brinkhurst, 1981
Holotype USNM 61976, identified as Monopylephorus evertus Baker & Brinkhurst, 1981
Holotype ZMH 7496, identified as Rhizodrilus africanus (Michaelsen, 1913)