Symmius

Shimomura, Michitaka, 2008, A new species of Symmius Richardson (Crustacea: Isopoda: Chaetiliidae) from Japan, Zootaxa 1719, pp. 61-68 : 62

publication ID

https://doi.org/ 10.5281/zenodo.181052

DOI

https://doi.org/10.5281/zenodo.6234389

persistent identifier

https://treatment.plazi.org/id/BF7E878A-3721-FF9B-33B4-3416209FA3DC

treatment provided by

Plazi

scientific name

Symmius
status

 

Key to species of Symmius View in CoL

1. Pereopod 7 ambulatory................................................................................................................................2

- Pereopod 7 prehensil or rudimentary...........................................................................................................3

2. Body 3.1 times as long as wide; pereonites and pleonites without mid-dorsal projection; anterior angle of ocular lobe strongly projecting anteriorly ................................................................ S. caudatus View in CoL Richardson

- Body 2.5 times as long as wide; pereonites 1–7 and pleonite 2 each with mid-dorsal projection; anterior angle of ocular lobe not projecting ..................................................................... S. yamaguchiensis View in CoL sp. nov.

3. Body 2.4 times as long as wide; pereopods very setose; pereopod 7 prehensil ........... S. planus Nunomura View in CoL

- Body 2.8 times as long as wide; pereopods scattered setae; pereopod 7 rudimentary .................................. .................................................................................................................................. S. philippinensis View in CoL Poore

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