Species: Penetopteryx nanus, Lost Pipefish, Worm Pipefish
snout v short
head & body: many fine dark bars
head & body: many fine dark bars
C (10) is only fin

Penetopteryx nanus (Rosen, 1911)
Worm Pipefish, Lost Pipefish
Snout very short, thick, upturned; no dorsal, pectoral or anal fins; no pelvic fins; tail fin small, 10 rays; upper body and tail ridges confluent, not interrupted; lower body ridge ends at anus; no ridge along side of body; trunk rings 17-19, total rings 47-61; brood pouch under tail rings 12-17, semi-enclosed.
Pale brown; head and body circled with many thin brown to red-brown bands, those on head and front of body wider.
Reaches only 3.2 cm.
Dead coral bottoms.
Depth range: 0.5-4 m.
The Bahamas and W Caribbean.

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- Salinity
-
- Marine
- Marine Only
- Inshore/Offshore
-
- Inshore
- Inshore Only
- Water Column Position
-
- Bottom
- Habitat
-
- Submerged vegetation
- Sand & gravel
- Rocks
- Reef and soft bottom
- Reef (rock/coral/oyster)
- Reef associated (reef + edges-water column & soft bottom)
- FishBase Habitat
-
- Reef Associated
- Feeding Group
-
- Carnivore
- Data
- Diet
-
- Data
- Mobile benthic crustacea (shrimps/crabs)
- Egg Type
-
- Data
- Live birth
- Pelagic larva
- Global Endemism
-
- All species
- Greater Caribbean endemic
- West Atlantic Endemic
- Regional Endemism
-
- GC endemic
- Island (s)
- Island (s) only
- All species
- Residency
-
- Resident
- Climate Zone
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- Equatorial (0-10N, Costa Rica / Venezuela)
- Subtropical (23-35N, Florida / Carolinas / Bermuda)
- IUCN Red List
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- Least concern
- Listed
- CITES
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- Not listed
- Length Max
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- 3.2
- Depth Range Min
-
- 0
- Depth Range Max
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- 4