Cerapus Say 1817
Creators
Description
The Cerapus Clade
Cerapinae Smith, 1880: 276.
Cerapiinae Budnikova, 1989: 55.
Diagnosis. Antenna 1: slightly more robust than antenna 2. Antenna 2: peduncle elongate, slender. Mandible: palp large, 3-articulate. Gnathopod 1: subchelate in male and female. Gnathopod 2: carpochelate (rarely subchelate) in male, subchelate in female. Peraeopods 3 and 4: basis inflated, glandular; dactylus not styliform. Peraeopods 5 to 7: distal articles reversed so that dactyli are directed posteriorly; dactyli modified with accessory spines (occasionally unmodified). Peraeopod 5: coxa enlarged, broad and long anteriorly with small posterior lobe (usually much larger in female), with or without fringe of long setae; merus short, broad, anterior margin produced to nearly or completely over reach carpus, posterior margin produced into a large setose lobe; carpus short, reniform with posterior lobe covered in minute denticles; propodus inserts into concave margin of carpus. Peraeopods 6 and 7: similar to each other; peraeopod 7 slightly longer than peraeopod 6, both longer than peraeopod 5. Urosomites: free. Pleopods: decreasing in size from pleopod 1 to 3 (occasionally not modified). Pleopods 2 and 3: reduced inner ramus (occasionally pleopod 3 uniramous or absent). Uropod 1: biramous with a corona of spines at distoventral end of peduncle. Uropods 2 and 3: uniramous with reduced or rudimentary ramus. Telson: short, notched to deeply cleft, each lobe with a dorsal field of recurved spines.
Cerapus clade composition. Five genera: Cerapus Say, 1817; Runanga J.L. Barnard, 1961; Paracerapus Budnikova, 1989; Notopoma n.gen. and Bathypoma n.gen.
Notes
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Linked records
Additional details
Identifiers
Related works
- Is part of
- Journal article: 10.3853/j.0067-1975.48.1996.281 (DOI)
- Journal article: http://zenodo.org/record/4654913 (URL)
- Journal article: http://publication.plazi.org/id/1C63FFC9FFA6B16E11687B5FFFAF4A6A (URL)
Biodiversity
- Family
- Ischyroceridae
- Genus
- Cerapus
- Kingdom
- Animalia
- Order
- Amphipoda
- Phylum
- Arthropoda
- Scientific name authorship
- Say
- Taxon rank
- genus
- Taxonomic concept label
- Cerapus Say, 1817 sec. Lowry & Berents, 1996
References
- Smith, S. I., 1880. VII. On the amphipodous genera, Cerapus, Unciola, and Lepidactylis, described by Thomas Say. Transactions of the Connecticut. Academy of Arts and Sciences 4: 268 - 285.
- Say, T., 1817. On a new genus of the Crustacea, and the species on which it was established. Journal of the Academy of Natural Sciences of Philadelphia 1: 49 - 52.