Spiralothelphusa
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publication ID |
https://doi.org/ 10.11646/zootaxa.3963.3.5 |
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publication LSID |
lsid:zoobank.org:pub:0E2F06F8-FC69-4B3B-9EBF-E2557FEF48E0 |
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DOI |
https://doi.org/10.5281/zenodo.6094128 |
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persistent identifier |
https://treatment.plazi.org/id/F71087FF-F837-FF9D-FF2C-CCF22EFBFEA8 |
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treatment provided by |
Plazi |
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scientific name |
Spiralothelphusa |
| status |
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Key to the species of Spiralothelphusa View in CoL
1. Postorbital cristae almost straight, gently sloping posteriorly towards lateral border; G1 terminal segment and distal portion of subterminal segment strongly twisted clockwise full turn...................................................... 2
- Postorbital cristae distinctly curved, sloping posteriorly towards postorbital region and then anteriorly towards lateral border; G1 terminal segment and distal portion of subterminal segment less strongly twisted clockwise half turn............... 3
2. Telson slightly longer than sixth male abdominal somite; G1 twisted portion long, two-third length of non-twisted portion; terminal segment tip gently curved downwards; non-twisted portion outer margin without hump.............. S. wuellerstorfi View in CoL
- Telson equal in length to sixth male abdominal somite; G1 twisted portion short, half-length of non-twisted portion; terminal segment tip distinctly curved upwards; non-twisted portion outer margin with distinct setose hump............. S. parvula View in CoL
3. G2 distal segment short, 0.25 times length of basal segment; G1 terminal segment tip gently curved upwards … S. hydrodroma View in CoL
- G2 distal segment long, 0.4–0.5 times length of basal segment; G1 terminal segment tip gently curved downwards or almost straight............................................................................................ 4
4. G1 twisted portion long, two-third length of non-twisted portion; non-twisted portion outer margin with distinct setose hump...................................................................................... S. gibberosa View in CoL n. sp.
- G1 twisted portion short, half length of non-twisted portion; non-twisted portion outer margin without hump............. 5
5. Chelipedal carpus of adults with inner distal spine only; G1 terminal segment tip narrow, gently hooked downwards to almost straight; subterminal segment not visible as hump on base of terminal segment from dorsal view................. S. senex View in CoL
- Chelipedal carpus of adults with both inner distal spine and very low sub-basal granule; G1 terminal segment tip normal, straight; subterminal segment visible as hump on base of terminal segment from dorsal view................ S. fernandoi 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.