Swollenbulb Dragonfish
📖 Overview
Swollenbulb Dragonfish (Eustomias bigelowi) is a ray-finned fish of the family Stomiidae. It inhabits marine (saltwater) waters in pelagic environments. This species can reach a maximum total length of 19.8 cm. It occurs at depths between 0 and 500 metres. With a trophic level of 4.2, it is a mid-level predator. It is assessed as Least Concern on the IUCN Red List.
🔬 Taxonomy
🐟 Physical Description
Dorsal soft rays (total): 22 - 26; Anal soft rays: 37 - 42. Body slender and elongate; body depth 6.7-9.1% SL. Head length 11.4-14.4% SL. Lower jaw about as long as upper jaw. Long, tapering, protrusible snout. Chin barbel 11.2-12.9% SL. Barbel with slender stem, 3 branches, and a globular terminal bulb. Branches located medial to bulb and are slightly shorter to slightly longer than distance from base of branches to tip of barbel, and bear several side branches. Terminal bulb with several branched filaments near tip. Two tightly bound pectoral rays .: elongated.
🌀 Behaviour
Behavioural data for Swollenbulb Dragonfish is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Marine; pelagic-oceanic; depth range 0 - 500 m . Tropical; 37°N - 25°S Central Atlantic: roughly between 20-35°N and 35-90°W.
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🌐 Names & Taxonomy
| Language | Common Names |
|---|---|
| 🇬🇧English | Swollenbulb Dragonfish |
| 🌍CES | svítivka Begelowova |
| 🇵🇹Portuguese | Peixe-dragão-de-Bigelow |
| 🇷🇺Russian | Эустома Бигелоу |
Scientific Synonyms
| Scientific Name | Author | Year | Status |
|---|---|---|---|
| Eustomias bigelowi bigelowi | Welsh | 1923 | Synonym |
| Eustomias bigelowi parvibulbus | Parr | 1927 | Synonym |
| Eustomias parvibulbus | Parr | 1927 | Synonym |
🔍 Similar Species
🗺️ Global Occurrence Map
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 13 records indexed .
👥 Community & Contribute
No observations yet - be the first to log one!
View all observations for Swollenbulb Dragonfish ↗Spotted incorrect or outdated data? Submit a correction and our editorial team will review it. Approved edits go live within 48 hours.
Found a factual error, broken data, or inappropriate content? Let us know and we will investigate promptly.