Distribution NE Pacific Ocean: off central Oregon (USA).
Distribution NE Pacific Ocean: off central Oregon (USA). [details]
Etymology Not stated. The specific epithet spinosa (masculine: spinosus) is a Latin adjective meaning 'thorny' or 'prickly', and...
Etymology Not stated. The specific epithet spinosa (masculine: spinosus) is a Latin adjective meaning 'thorny' or 'prickly', and presumably refers to the simple spines present in all parapodia of the species: ''Setae include thick, distally blunt, simple spines in all parapodia'' (Fauchald & Hancock, 1981: 20). The spelling should be neuter 'spinosum' in agreement with Mucibregma which is neuter.[details]
Taxonomy Kudenov (1985:339), examined the only specimen and suggested Mucibregma spinosa might be a member of Fauveliopsidae. Blake...
Taxonomy Kudenov (1985:339), examined the only specimen and suggested Mucibregma spinosa might be a member of Fauveliopsidae. Blake (2025: 214) later also examined the specimen and was satisfied it was indeed a member of Scalibregmatidae. [details]
Read, G.; Fauchald, K. (Ed.) (2025). World Polychaeta Database. Mucibregma spinosa Fauchald & Hancock, 1981. Accessed through: Glover, A.G.; Higgs, N.; Horton, T. (2025) World Register of Deep-Sea species (WoRDSS) at: https://www.marinespecies.org/deepsea/aphia.php?p=taxdetails&id=329050 on 2026-01-16
Glover, A.G.; Higgs, N.; Horton, T. (2026). World Register of Deep-Sea species (WoRDSS). Mucibregma spinosa Fauchald & Hancock, 1981. Accessed at: https://www.marinespecies.org/deepsea/aphia.php?p=taxdetails&id=329050 on 2026-01-16
original descriptionFauchald, K.; Hancock, D.R. (1981). Deep-water polychaetes from a transect off central Oregon. <em>Allan Hancock Monographs in Marine Biology.</em> 11: 1-73., available online athttp://hdl.handle.net/10088/3445 page(s): 20, plate 3 figs. a-b [details]
context source (Deepsea)Fauchald, K.; Hancock, D.R. (1981). Deep-water polychaetes from a transect off central Oregon. <em>Allan Hancock Monographs in Marine Biology.</em> 11: 1-73., available online athttp://hdl.handle.net/10088/3445[details]
redescriptionBlake, 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 athttps://mapress.com/mt/article/view/megataxa.16.1.1 page(s): 14, figure 109; note: Redescription from holotype. The gender incorrect original 'spinosa' spelling of the species-group name is not corrected. [details]
status sourceBlake, James A; Read, Geoffrey B. (2025). Scalibregmatidae (Annelida)—Mandatory species name emendations. <em>Zootaxa.</em> 5693 (3): 447–450., available online athttps://www.mapress.com/zt/article/view/zootaxa.5693.3.10 page(s): 448; note: mandatory correction of feminine adjective 'spinosa' to neuter spinosum [details] Available for editors
Present Inaccurate Introduced: alien Containing type locality
Depth range 2000 m. [details] Distribution NE Pacific Ocean: off central Oregon (USA). [details] Etymology Not stated. The specific epithet spinosa (masculine: spinosus) is a Latin adjective meaning 'thorny' or 'prickly', and presumably refers to the simple spines present in all parapodia of the species: ''Setae include thick, distally blunt, simple spines in all parapodia'' (Fauchald & Hancock, 1981: 20). The spelling should be neuter 'spinosum' in agreement with Mucibregma which is neuter.[details] Habitat Sandy silt, at bathyal depths. [details] Spelling The spelling of Mucibregma spinosa should instead be neuter Latin adjectival 'spinosum' in agreement with Mucibregma which is neuter. Although type species for the genus, the original usage by Fauchald & Hancock (1981) of feminine 'spinosa' is incorrect and should not influence subsequent taxonomists. The Code focuses solely on the gender of the genus as derived from dictionaries. [details] Taxonomy Kudenov (1985:339), examined the only specimen and suggested Mucibregma spinosa might be a member of Fauveliopsidae. Blake (2025: 214) later also examined the specimen and was satisfied it was indeed a member of Scalibregmatidae. [details] Type locality Continental slope off Oregon, USA, NE Pacific Ocean (start 44.5583º, -125.0767º; finish ---), 2000 m, sandy silt. [details]