Bathyraja aleutica Gilbert 1896
Creators
Description
Bathyraja aleutica (Gilbert, 1896)
Description: The egg cases of Bathyraja aleutica (Figure 3) are very large,> 120 mm in length, with MAW about 73–76% of ECL. Egg case surface very coarse, striated, and with long anteriorly directed prickles giving it a velvety texture. Lateral keels very narrow, about 6–7% of MAW. Attachment fibers present, originating near base of posterior horns. Anterior apron border broad and concave, similar in width to the posterior.
Anterior horns relatively short, about 60–80% of ECL, curved inwards, tapering towards tips, becoming thin and filamentous. Posterior apron straight, broad, transverse, posterior horns longer than anteriors and about 90% or more length of egg case, tapering towards tips with tendrils coiling towards filamentous tips. Color after preservation a golden brown, lighter along lateral keels.
Remarks: A common species in the Bering Sea and Gulf of Alaska its southern range is now known to extend into northern California (Hoff, 2002; Ebert, 2003).
Material examined: CAS 224337, 138.0 cm TL, eastern Bering Sea (56.1972 N, 169.7457 W), 242 m, 17 June 2002; MLML uncatalogued, 136.0 cm TL, eastern Bering Sea (60.3806 N, 178.6524 W), 295 m, 29 June 2002; MLML uncatalogued, 134.9.0 cm TL, eastern Bering Sea (60.3806 N, 178.6524 W), 295 m, 29 June 2002.
Other
Published as part of Ebert, David A. & Davis, Chante D., 2007, Descriptions of skate egg cases (Chondrichthyes: Rajiformes: Rajoidei) from the eastern North Pacific, pp. 1-18 in Zootaxa 1393 on pages 4-5, DOI: 10.5281/zenodo.175296Files
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Linked records
Additional details
Identifiers
Related works
- Is part of
- Journal article: 10.5281/zenodo.175296 (DOI)
- Journal article: http://publication.plazi.org/id/FFDC5F3DD7373813FF2C4949FFCEFFCA (URL)
- Is source of
- https://sibils.text-analytics.ch/search/collections/plazi/03E52745D7343817FFBB4E44FED8FDD0 (URL)
Biodiversity
- Family
- Arhynchobatidae
- Genus
- Bathyraja
- Kingdom
- Animalia
- Order
- Rajiformes
- Phylum
- Chordata
- Scientific name authorship
- Gilbert
- Species
- aleutica
- Taxon rank
- species
- Taxonomic concept label
- Bathyraja aleutica Gilbert, 1896 sec. Ebert & Davis, 2007
References
- Gilbert, C. H. (1896) Report on the fishes collected in Bering Sea and the North Pacific during the summer of 1890. The ichthyological collections of the steamer Albatross during the years 1890 and 1891. Report of the U. S. Commissioner of Fish and Fisheries for 1893, 393 - 476.
- Hoff, G. R. (2002) New records of the Aleutian skate, Bathyraja aleutica from northern California. California Fish & Game, 88 (3), 145 - 148.
- Ebert, D. A. (2003) The sharks, rays and chimaeras of California. University California Press, 284 pp.