| Family | Scientific Name | Author | Year | Common Name |
| Ophichthidae | Ahlia egmontis | (Jordan) | 1884 | Key Worm Eel |
Ahlia egmontis
Unique Characters: Tail tip flexible, caudal-fin rays not conspicuous, confluent with dorsal and anal fins. Gill opening midlateral, an opening constricted. Posterior nostril labial, either within lip and opening into mouth, or along lip and covered by a flap. Pectoral fins well developed or minute. Dorsal-fin origin above or behind anus. Vomerine teeth absent.
Similar Species:
Broadnose Worm Eel
Myrophis platyrhynchus
Speckled Worm Eel
Myrophis punctatus
Broadnose Worm Eel Myrophis platyrhynchus. Tail tip flexible, caudal-fin rays not conspicuous, confluent with dorsal and anal fins. Gill opening midlateral, an opening constricted. Posterior nostril labial, either within lip and opening into mouth, or along lip and covered by a flap. Pectoral fins well developed or minute. Dorsal-fin origin anterior to midtrunk region. Vomerine teeth present. Two postorbital pores, 1 behind upper half of eye and 1 behind mideye. Dorsal-fin origin about midway between snout tip and anus.
Speckled Worm Eel Myrophis punctatus. Tail tip flexible, caudal-fin rays not conspicuous, confluent with dorsal and anal fins. Gill opening midlateral, an opening constricted. Posterior nostril labial, either within lip and opening into mouth, or along lip and covered by a flap. Pectoral fins well developed or minute. Dorsal-fin origin anterior to midtrunk region. Vomerine teeth present. One postorbital pore behind upper half of eye.
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