Rhamphobrachium Ehlers 1887
Creators
Description
Genus Rhamphobrachium Ehlers, 1887, emend.
Rhamphobrachium Ehlers, 1887: 70.— Paxton 1986a: 44. Paranorthia Moore, 1903: 448.
Type-species. Rhamphobrachium agassizii Ehlers, 1887: 70, by subsequent designation of Hartman, 1944: 47. Gender: neuter.
Diagnosis. The definition given by Paxton (1986a) is here emended as follows: peristomial cirri present or absent; anterior two or three pairs of parapodia modified, moderately prolonged, hooks with two rows of moveable spines, chaetal sacs extending to chaetiger 20–60; branchiae present or absent.
Remarks. The genus was previously defined as having peristomial cirri, branchiae, and three anterior pairs of modified parapodia with chaetal sacs extending to chaetiger 30–60. The erection of a new subgenus for the three progenetic new species described below necessitated the present emendation. With the description of the new subgenus, Rhamphobrachium includes three subgenera which can be distinguished as outlined in the key at the end of the paper.
Notes
Files
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Linked records
Additional details
Identifiers
Biodiversity
- Family
- Onuphidae
- Genus
- Rhamphobrachium
- Kingdom
- Animalia
- Order
- Eunicida
- Phylum
- Annelida
- Scientific name authorship
- Ehlers
- Taxon rank
- genus
- Taxonomic concept label
- Rhamphobrachium Ehlers, 1887 sec. Paxton & Budaeva, 2015
References
- Ehlers, E. (1887) Reports on the results of dredging, under the direction of L. F. Pourtales, during the years 1868 - 1870, and of Alexander Agassiz, in the Gulf of Mexico (1877 - 78), and in the Caribbean Sea (1878 - 79), in the U. S. Coast Survey Steamer " Blake ", Lieut. - Com. C. D. Sigsbee, U. S. N., and Commander J. R. Bartlett, U. S. N., commanding. 31. Report on the annelids. Memoirs of the Museum of Comparative Zoology at Harvard College, 15, 1 - 335.
- Paxton, H. (1986 a) Generic revision and relationships of the family Onuphidae (Annelida: Polychaeta). Records of the Australian Museum, 38, 1 - 74. http: // dx. doi. org / 10.3853 / j. 0067 - 1975.38.1986.175
- Moore, J. P. (1903) Polychaeta from the coastal slope of Japan and from Kamchatka and Bering Sea. Proceedings of the Academy of Natural Sciences of Philadelphia, 55 (2), 401 - 490.
- Hartman, O. (1944) Polychaetous annelids. Part 5. Eunicea. Allan Hancock Pacific Expeditions, 10, 1 - 238.