Species: Chaenopsis deltarrhis, Delta pike-blenny
notch on nape
tongue short
Chaenopsis deltarrhis Böhlke, 1957
Delta pike-blenny
Body very elongate; head long; no cirri on head; snout short and wide; large fish with a notch separating head and flattened nape; long mouth, usually reaching far behind eye, tip of lower jaw projecting; tongue short; no teeth at front of roof of mouth; dorsal fin XVIII-XX, 28-30, front half of fin very tall and sail-like in adult males; anal rays II, 32-36; pectoral rays 14; tail fin rounded, joined to dorsal and anal fins.
Light green or olive, white below, often with greenish midlateral stripe and/or with series of 8-10 dark bars; female with a black ocellated spot behind 4th dorsal spine near outer edge of fin; male without spot or ocellus on front of dorsal fin.
Size: attains 7.5 cm.
Inhabits worm tubes on sand-rubble bottoms.
Depth: 5-30 m.
Costa Rica to Colombia, Cocos Island.
High Resolution Map Download
- Salinity
-
- Marine
- Marine Only
- Inshore/Offshore
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- Inshore
- Inshore Only
- Water Column Position
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- Bottom only
- Bottom
- Habitat
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- Soft bottom only
- Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
- Barnacles & worm tubes
- Sand & gravel
- Reef associated (reef + edges-water column & soft bottom)
- FishBase Habitat
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- Demersal
- Feeding Group
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- No Data
- Carnivore
- Planktivore
- Diet
-
- Data
- Pelagic fish eggs
- Mobile benthic crustacea (shrimps/crabs)
- Zooplankton
- Bony fishes
- Egg Type
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- Pelagic larva
- No data
- Benthic
- Global Endemism
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- Tropical Eastern Pacific (TEP) endemic
- All species
- East Pacific endemic
- Regional Endemism
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- Continent + Island (s)
- Panamic province endemic
- Island (s)
- TEP endemic
- Continent only
- All species
- Residency
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- Resident
- Climate Zone
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- Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
- IUCN Red List
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- Data deficient
- Listed
- CITES
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- Not listed
- Length Max
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- 7.5
- Depth Range Min
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- 5
- Depth Range Max
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- 30
