Spiropagurus

Han, Yuan-Yuan, An, Jian-Mei & Sha, Zhong-Li, 2016, A review of the genus Spiropagurus Stimpson, 1858 (Crustacea: Decapoda: Paguridae) from the China seas, Zootaxa 4175 (1), pp. 75-89 : 88

Key to species of the genus Spiropagurus

1. Dorsal surfaces of ocular peduncles with several short transverse rows of setae.............................. S. spiriger

- Dorsal surfaces of ocular peduncles without several short transverse rows of setae.................................. 2

2. Chela ovate, length about twice width.............................................................. S. elegans

- Chela not ovate, length about three times width.............................................................. 3

3. Carpus of cheliped with 3 rows of spines....................................................... S. spinosicarpis

- Carpus of cheliped with 1 or 2 rows of spines............................................................... 4

4. Carpus of cheliped with 1 row of spines................................................. S. monospinosus sp. nov.

- Carpus of cheliped with 2 rows of spines................................................................... 5

5. Merus of chelipeds with dorsal surfaces carinate................................................... S. lophomeris

- Merus of chelipeds with dorsal surfaces not carinate.......................................................... 6

6. Two rows of spines on dorsal surface of carpus extending along the whole length of the segment........... S. profundorum

- Two rows of spines on dorsal surface of carpus not extending along the whole length of the segment, with spines on the dor- somesial more than dorsolateral................................................................. S. fimbriatus