Petalosarsia

publication ID	https://doi.org/ 10.5281/zenodo.212026
DOI	https://doi.org/10.5281/zenodo.6168542
persistent identifier	https://treatment.plazi.org/id/576687B4-7043-F608-08BE-FB0CB187BA0D
treatment provided by	Plazi
scientific name	Petalosarsia
status

1. carapace with distinct dorsolateral carina................................................................... 2

- carapace without or with faint dorsolateral carina........................................................... 6

2. carapace with sharp dorsolateral carina running entire length on each side....................................... 3

- carapace with short or dull dorsolateral carina on each side..................................................... 5

3. dorsolateral carina without tooth........................................................ P. declivis (Sars, 1865) View in CoL

- dorsolateral carina serrated with about 10 teeth............................................................. 4

4. pseudorostrum short and truncated, 0.09–0.12 times as carapace length...................... P. brevirostris Gamô, 1986 View in CoL

- pseudorostrum long and acute, 0.21–0.25 times as carapace length................................. P. g a m o i sp. nov.

5. dorsolateral carina dull, run entire side surface.................................................. P. ovalis View in CoL sp. nov.

- dorsolateral carina only at anterior portion of carapace...................................... P. ryukyuensis View in CoL sp. nov.

6. carapace with faint dorsolateral carina..................................................................... 7

- carapace without dorsolateral carina.......................................................................8

7. carapace with faint dorsolateral carina with a few teeth on anterior portion..................... P. longicaudata sp. nov.

- carapace with faint dorsolateral carina without teeth for entire length.............................. P. australis View in CoL sp. nov.

8. inner distal corner of pereopod 1 carpus forming rectangular angle................................ P. suluensis View in CoL sp. nov.

- inner distal corner of pereopod 1 carpus forming obtuse angle.................................................. 9

9. pereonite 3–5 with brunt spines on dorsal surface....................................... P. longirostris Jones, 1973 View in CoL

- pereonite 4 with a spine directed forward on dorsal surface........................................ P. j o n e s i sp. nov.