Hydrolagus
Creators
Description
Key to the western Atlantic Hydrolagus species
[Modified from Bigelow and Schroeder (1953) and Didier (2004)]
1a. Upper margin of second dorsal fin straight..................................................... H. alberti
1b. Upper margin of second dorsal fin notably concave at middle region of second dorsal fin base.......................................................................................................................... 2
2a. Body pale brown, without reticulations and spots; ventral base of pectoral fin darkish brown; eye length nearly equal to preorbital length; dorsal spine length 4/5 of head length; pelvic claspers in males divided for nearly 1/2 their length............ H. mirabilis
2b. Brown coloration with reticulations and spots covering dorsoventrally the body; ventral base of pectoral fin whitish; eye length about 2/3 of preorbital length; dorsal spine
Notes
Files
Files
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System files
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Linked records
Additional details
Identifiers
Biodiversity
- Family
- Chimaeridae
- Genus
- Hydrolagus
- Kingdom
- Animalia
- Order
- Chimaeriformes
- Phylum
- Chordata
- Taxon rank
- genus
References
- Bigelow, H. B. & Schroeder, W. C. (1953) Chimaeroids. In: Tee-van, J., Breder, C. M., Parr, A. E., Schroeder, W. C. & Schultz, L. P. (Eds), Fishes of the Western North Atlantic. Part 2. Sawfishes, Guitarfishes, Skates and Rays, Chimaeroids. Yale University. Sears Foundation for Marine Research, New Heaven. pp. 515 - 562.
- Didier, D. A. (2004) Phylogeny and classification of extant Holocephali. In: Carrier, J. C., Musick, J. A. & Heithaus, M. R. (Eds.) Biology of Sharks and Their Relatives. CRC Press, Boca Raton, pp. 115 - 135.