Spotted frillgoby (Bathygobius cyclopterus), first described by Valenciennes, 1837 is a small fish in the family Gobiidae (order Gobiiformes). Adults typically reach 7.50 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 0 to 20 metres. It occurs in Tropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator. On the IUCN Red List, it is classified as Least Concern.The species is kept in the aquarium hobby. Care requirements and behaviour align broadly with other Gobiidae kept in the hobby.
Dorsal spines (total): 7; Dorsal soft rays (total): 9; Anal spines: 1; Anal soft rays: 8. Brown with irregular spots; dorsal and caudal fins with bands in females, dusky in males; often with dark brown saddle below each of the dorsal fins ; characterized further by having upper five pectoral rays with free tips and sixth ray partly free; three branches on upper four pectoral rays; rounded caudal fin; longitudinal scale series 37-38; predorsal scales 18-20, reaching or nearly reaching interorbital space; cheek and opercle without scales; presence of fleshy double flap from edge of cheek into notch at posterior end of upper lip; ctenoid body scales, becoming cycloid on abdomen, breast, base of pectoral fin and nape; depressed head, width greater than depth; depth of body 4.3-5.5 in SL .: fusiform / normal.
Behavioural data for Spotted frillgoby is currently being reviewed.
Benthic spawner.
Marine; brackish; reef-associated; depth range 0 - 20 m . Tropical East Africa to Samoa and the Hawaiian Islands.
| Language | Common Names |
|---|---|
| 🇬🇧English | Cyclops Frillgoby · Roundfin Frillgoby · roundfin goby · Spotted Frillgoby |
| 🇫🇮Finnish | täpläröyhelötokko |
| 🇯🇵Japanese | Yahazuhaze · ヤハズハゼ |
| 🇵🇹Portuguese | Góbio-ciclope |
| 🇨🇳Chinese | 圓鰭深鰕虎 · 圓鰭深鰕虎魚 |
| Scientific Name | Author | Year | Status |
|---|---|---|---|
| Bathygobius crassiceps | Jordan & Seale | 1906 | Synonym |
| Bathygobius laoe | Roxas & Ablan | 1940 | Synonym |
| Bathygobius mearnsi | Evermann & Seale | 1906 | Synonym |
| Bathygobius nox | Bleeker | 1851 | Synonym |
| Gobius cyclopterus | Valenciennes | 1837 | Synonym |
| Gobius nox | Bleeker | 1851 | Synonym |
| Gobius variabilis | Steindachner | 1901 | Synonym |
| Gobius varius | Steindachner | 1901 | Synonym |
| Mapo crassiceps | Jordan & Seale | 1906 | Synonym |
| Mapo mearnsi | Evermann & Seale | 1906 | Synonym |
The following diseases are known to affect Spotted frillgoby.
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 2 records indexed .
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