| Family | Scientific Name | Author | Year | Common Name |
| Congridae | Gnathophis bracheatopos | Smith and Kanazawa | 1977 | Longeye Conger |
Gnathophis bracheatopos
Unique Characters: Dorsal, caudal, and anal fins pale with dark edges. Lower jaw about same length as upper jaw. Maxillary and mandibular teeth in bands or in 2 rows, the outer row not forming a cutting edge. Body moderately elongate. Mouth horizontal or slightly oblique. Snout length only slightly less than, to somewhat greater than diameter of eye. Anterior nostrils free. Pectoral fin well developed; caudal fin present though sometimes reduced. Preanal length usually less than 40% total length. Posterior nostril at or above mideye level. Dorsal- and anal-fin rays segmented. Tip of tail slightly stiffened and caudal fin somewhat reduced. A narrow upper labial flange present.
Similar Species: Conger Eel Conger oceanicus. Dorsal, caudal, and anal fins pale with dark edges. Lower jaw shorter than upper jaw. Maxillary and mandibular teeth in 1 or 2 rows, the outer row forming a cutting edge. Body moderately elongate. Mouth horizontal or slightly oblique. Snout length only slightly less than, to somewhat greater than diameter of eye. Anterior nostrils free. Pectoral fin well developed; caudal fin present though sometimes reduced. Preanal length usually less than 40% total length. Posterior nostril at or above mideye level. Dorsal- and anal-fin rays segmented. Upper labial flange well developed.
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