WoRMS taxon details
Oligobregma Kudenov & Blake, 1978
324770 (urn:lsid:marinespecies.org:taxname:324770)
accepted
Genus
Pseudoscalibregma aciculata Hartman, 1965 accepted as Oligobregma aciculatum (Hartman, 1965) (type by original designation)
- Species Oligobregma aciculatum (Hartman, 1965)
- Species Oligobregma acsarum Blake, 2025
- Species Oligobregma acutaspinosum Blake, 2025
- Species Oligobregma aristatum Blake, 2023
- Species Oligobregma bakkeni Mendes, De Paiva & Rizzo, 2024
- Species Oligobregma bathyala Blake, 2023
- Species Oligobregma brasierae Wiklund, Neal, Glover, Drennan, Rabone & Dahlgren, 2019
- Species Oligobregma brychiatum Blake, 2025
- Species Oligobregma chromatum Blake, 2025
- Species Oligobregma collare (Levenstein, 1975)
- Species Oligobregma cruzae Mendes, De Paiva & Rizzo, 2024
- Species Oligobregma emmae Blake, 2025
- Species Oligobregma escanabis Blake, 2025
- Species Oligobregma hampsoni Blake, 2025
- Species Oligobregma lonchochaeta Detinova, 1985
- Species Oligobregma menziesi Blake, 2025
- Species Oligobregma mucronatum Blake, 2015
- Species Oligobregma nonatoi Mendes, De Paiva & Rizzo, 2024
- Species Oligobregma notiale Blake, 1981
- Species Oligobregma oculatum Kudenov & Blake, 1978
- Species Oligobregma profundum Blake, 2023
- Species Oligobregma quadrispinosum Schüller & Hilbig, 2007
- Species Oligobregma renuncula Blake, 2023
- Species Oligobregma simplex Kudenov & Blake, 1978
- Species Oligobregma sphaeracirratum Blake, 2025
- Species Oligobregma tani Wiklund, Neal, Glover, Drennan, Rabone & Dahlgren, 2019
- Species Oligobregma tasmanius (Kirkegaard, 1996)
- Species Oligobregma weddelliense Blake, 2025
- Species Oligobregma whaleyi Wiklund, Neal, Glover, Drennan, Rabone & Dahlgren, 2019
- Species Oligobregma williamsae Blake, 2025
- Species Oligobregma aciculata (Hartman, 1965) accepted as Oligobregma aciculatum (Hartman, 1965) (unaccepted > incorrect grammatical agreement of specific epithet, Adjectival ending correction. All genus names ending in -bregma in the Scalibregmatidae are neuter)
- Species Oligobregma aristata Blake, 2023 accepted as Oligobregma aristatum Blake, 2023 (unaccepted > incorrect grammatical agreement of specific epithet, spelling gender correction to correct neuter 'aristatum')
- Species Oligobregma blakei Schüller & Hilbig, 2007 accepted as Asclerocheilus pseudocollare (Schüller & Hilbig, 2007) accepted as Asclerocheilus pseudocollaris (Schüller & Hilbig, 2007) (unaccepted > junior subjective synonym, synonym described from same station as A. pseudocollare)
- Species Oligobregma hartmanae Blake, 1981 accepted as Pseudoscalibregma hartmanae (Blake, 1981) (superseded original combination)
- Species Oligobregma mucronata Blake, 2015 accepted as Oligobregma mucronatum Blake, 2015 (unaccepted > incorrect grammatical agreement of specific epithet, Oligobregma is a neuter genus)
- Species Oligobregma oculata Kudenov & Blake, 1978 accepted as Oligobregma oculatum Kudenov & Blake, 1978 (unaccepted > incorrect grammatical agreement of specific epithet, feminine 'oculata' should be neuter 'oculatum')
- Species Oligobregma profunda Blake, 2023 accepted as Oligobregma profundum Blake, 2023 (unaccepted > incorrect grammatical agreement of specific epithet, feminine adjective 'profunda' should be neuter 'profundum')
- Species Oligobregma pseudocollare Schüller & Hilbig, 2007 accepted as Asclerocheilus pseudocollaris (Schüller & Hilbig, 2007) (unaccepted > superseded combination, superseded original combination)
- Species Oligobregma quadrispinosa Schüller & Hilbig, 2007 accepted as Oligobregma quadrispinosum Schüller & Hilbig, 2007 (unaccepted > incorrect grammatical agreement of specific epithet, The adjective 'spinosa' should be neuter 'spinosum')
- Species Oligobregma tasmania (Kirkegaard, 1996) accepted as Oligobregma tasmanius (Kirkegaard, 1996) (unaccepted > misspelling - incorrect subsequent spelling, 'tasmanius' is best treated as an unchanging noun in apposition)
- Species Oligobregma weddelliensis Blake, 2025 accepted as Oligobregma weddelliense Blake, 2025 (unaccepted > misspelling - incorrect original spelling, spelling gender correction to correct neuter 'weddelliense')
marine, brackish, fresh, terrestrial
recent only
neuter
Kudenov, Jerry D. and Blake, J.A. 1978. A review of the genera and species of the Scalibregmidae (Polychaeta) with descriptions of one new genus and three new species from Australia. Journal of Natural History, 12: 427-444., available online at https://doi.org/10.1080/00222937800770291
page(s): 430 [details]
page(s): 430 [details]
Etymology Not stated. However, 'oligo' is few and 'bregma' is forehead. Assuming 'bregma' is included simply to link the genus to...
Etymology Not stated. However, 'oligo' is few and 'bregma' is forehead. Assuming 'bregma' is included simply to link the genus to 'Scalibregma', the first described genus in the family, the authors were thus noting few of something in this genus, but it is not obvious what feature they are remarking on. Scalibregma is neuter so Oligobregma is neuter also, but contrarily the authors created or maintained feminine species-group endings for the species they newly included in the genus. [details]
Read, G.; Fauchald, K. (Ed.) (2025). World Polychaeta Database. Oligobregma Kudenov & Blake, 1978. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=324770 on 2025-11-08
Date
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Nomenclature
original description
Kudenov, Jerry D. and Blake, J.A. 1978. A review of the genera and species of the Scalibregmidae (Polychaeta) with descriptions of one new genus and three new species from Australia. Journal of Natural History, 12: 427-444., available online at https://doi.org/10.1080/00222937800770291
page(s): 430 [details]
page(s): 430 [details]
Taxonomy
taxonomy source
Mendes, Samuel Lucas Da Silva Delgado; De Paiva, Paulo Cesar; Rizzo, Alexandra E. (2024). First record of Oligobregma Kudenov & Blake, 1975 (Annelida: Polychaeta: Scalibregmatidae Malmgren, 1867) from Brazil with the description of three new species. <em>Zootaxa.</em> 5424(1): 80-98., available online at https://www.mapress.com/zt/article/view/zootaxa.5424.1.4
note: Brazil [details]
taxonomy source Blake, James A. (2025). New species and records of Scalibregmatidae (Annelida) from the Atlantic Ocean, Indian Ocean, Pacific Ocean, Southern Ocean, and adjacent seas. <em>Megataxa.</em> 16(1): 1–232., available online at https://mapress.com/mt/article/view/megataxa.16.1.1
page(s): 79; note: Six new species described and a table of morphological comparison of the 30 known species of Oligobregma Kudenov & Blake, 1978 [details]
note: Brazil [details]
taxonomy source Blake, James A. (2025). New species and records of Scalibregmatidae (Annelida) from the Atlantic Ocean, Indian Ocean, Pacific Ocean, Southern Ocean, and adjacent seas. <em>Megataxa.</em> 16(1): 1–232., available online at https://mapress.com/mt/article/view/megataxa.16.1.1
page(s): 79; note: Six new species described and a table of morphological comparison of the 30 known species of Oligobregma Kudenov & Blake, 1978 [details]
Identification resource
identification resource
Mendes, Samuel Lucas Da Silva Delgado; De Paiva, Paulo Cesar; Rizzo, Alexandra E. (2024). First record of Oligobregma Kudenov & Blake, 1975 (Annelida: Polychaeta: Scalibregmatidae Malmgren, 1867) from Brazil with the description of three new species. <em>Zootaxa.</em> 5424(1): 80-98., available online at https://www.mapress.com/zt/article/view/zootaxa.5424.1.4
page(s): 94; note: Key to all Oligobregma [details]
identification resource Blake, James A. (2023). New species of Scalibregmatidae (Annelida) from slope and abyssal depths off eastern Australia. <em>Records of the Australian Museum.</em> 75(3): 271-298., available online at https://journals.australian.museum/blake-2023-rec-aust-mus-753-271298/
page(s): table 2; note: synoptic table comparing morphological characters of 17 known species of Oligobregma [details] Available for editors
[request]
page(s): 94; note: Key to all Oligobregma [details]
identification resource Blake, James A. (2023). New species of Scalibregmatidae (Annelida) from slope and abyssal depths off eastern Australia. <em>Records of the Australian Museum.</em> 75(3): 271-298., available online at https://journals.australian.museum/blake-2023-rec-aust-mus-753-271298/
page(s): table 2; note: synoptic table comparing morphological characters of 17 known species of Oligobregma [details] Available for editors
[request]From editor or global species database
Diagnosis "Body elongate and arenicoliform. Prostomium T-shaped with two prominent frontal horns; eyes present or absent; nuchal organs present. Peristomium achaetous, surrounding prostomium dorsally and forming upper and lower lips of mouth ventrally. Branchiae absent. Parapodia with well-developed dorsal and ventral cirri on posterior segments; interramal papilla present or absent. Large acicular spines present on anterior chaetigers. Capillaries present in all parapodia; lyrate chaetae present anterior to capillaries of chaetigers 2, 3, or 4; some species with short, slender, blunt or pointed spinous chaetae anterior to capillaries of chaetigers 1, 2 or 3, representing homologues of lyrate chaetae. Pygidium with anal cirri." (Blake, 2015: 79).Oligobregma and Asclerocheilus are both characterized by lacking branchiae and having acicular spines on anterior setigers. However, Oligobregma has well-developed and prominent dorsal and ventral cirri in middle and posterior parapodia while Asclerocheilus lacks parapodial cirri. [Blake, 2025] [details]
Etymology Not stated. However, 'oligo' is few and 'bregma' is forehead. Assuming 'bregma' is included simply to link the genus to 'Scalibregma', the first described genus in the family, the authors were thus noting few of something in this genus, but it is not obvious what feature they are remarking on. Scalibregma is neuter so Oligobregma is neuter also, but contrarily the authors created or maintained feminine species-group endings for the species they newly included in the genus. [details]
Grammatical gender Neuter. Adjectival Oligobregma species-group names should be neuter, but authors of at least eight names have not realized this and instead used feminine species-group adjectival names. [details]
