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Luciogobius opisthoproctus Chen & Liao, 2024 Taiwan earthworm goby |
| Family: | Gobiidae (Gobies), subfamily: Gobionellinae | |||
| Max. size: | 2.81 cm SL (male/unsexed) | |||
| Environment: | demersal; freshwater; brackish; marine | |||
| Distribution: | Asia: Taiwan. | |||
| Diagnosis: | Dorsal spines (total): 0-0; Dorsal soft rays (total): 9-12; Anal spines: 0-0; Anal soft rays: 11-14; Vertebrae: 41-43. This species is distinguished by the following set of characters: total vertebrae 41-43; absence of free pectoral-fin rays; D2 9-12 (usually 11); A 11-14 (11 or 12); pectoral-fin rays 8-12 (10 or 11); pelvic-fin length more than 50% of pectoral-fin length; AAA distance 4.2-7.2% (mean 5.7%) of SL, 72.1-129.7% (mean 99.9%) of body depth at anus; snout length 39.7-62.7% (mean 52.8%) of AAA distance; pre-anus distance 80.0-92.8% (mean 88.6%) of pre-anal-fin length; anterior-most pterygiophore of anal fin inserted behind the second haemal spine (Ref. 131447). | |||
| Biology: | Occurs mainly in shallow gravel creeks near coastal river mouths (Ref. 131447). | |||
| IUCN Red List Status: | Not Evaluated (N.E.) Ref. (130435) | |||
| Threat to humans: | harmless | |||