OXYCEPHALIDAE
publication ID |
https://doi.org/ 10.11646/zootaxa.4192.1.1 |
publication LSID |
lsid:zoobank.org:pub:B3AE1A8B-EE40-4ACF-879B-33B55FBD1FB8 |
DOI |
https://doi.org/10.5281/zenodo.6069317 |
persistent identifier |
https://treatment.plazi.org/id/4A641514-180F-FFC6-FF5E-FF64FA15FCF1 |
treatment provided by |
Plazi |
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OXYCEPHALIDAE |
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Key to the genera of the family OXYCEPHALIDAE View in CoL
1. Body extremely slender, with long, needle-shaped rostrum. Pereopod 7 reduced to basis (sometimes with one or two additional articles)......................................................................... Rhabdosoma White, 1847 View in CoL
- Body only moderately slender, rostrum produced into sharp or blunt point, never needle-shaped. Pereopod 7 with all articles present or if reduced, body is robust....................................................................... 2
2. Rostrum with broad lateral flanges................................................ Calamorhynchus Streets, 1878 View in CoL
- Rostrum without lateral flanges.......................................................................... 3
3. Double urosomite length more than 3 x width. Uropod 1 with very short exopod................. Leptocotis Streets, 1877 View in CoL
- Double urosomite length less than 3 x width. Uropods 1–3 with well-developed exopoda and endopoda................. 4
4. Rostrum rounded or only slightly pointed. Pereopods 5 & 6 with basis not much wider than following articles........................................................................................ Glossocephalus Bovallius, 1887 View in CoL
- Rostrum pointed. Pereopods 5 & 6 with basis considerably wider than following articles............................. 5
5. Pereopod 6; basis with postero-distal corner produced into distinct, almost up-turned, triangular process. Pereopod 7 with reduced number of articles........................................................ Tullbergella Bovallius, 1887 View in CoL
- Pereopod 6; basis with rounded postero-distal corner, not produced. Pereopod 7 with all articles present................. 6
6. Uropods 2 & 3; endopod fused with peduncle. Gnathopod 1 chelate.................. Oxycephalus Milne-Edwards, 1830 View in CoL
- Uropods 2 & 3; endopod articulated with peduncle. Gnathopod 1 sub-chelate...................................... 7
7 Head barrel-shaped. Coxae free, without processes........................................ Streetsia Stebbing, 1888 View in CoL
- Head globular. Coxae fused with pereonites. Pereonite 5 (fused coxa) often produced into backward-pointed process................................................................................... Cranocephalus Bovallius, 1890 View in CoL
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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