Notocanthiformes
Snubnosed Spiny Eel, Notacanthus chemnitzii. From plate 50 of Oceanic Ichthyology by G. Brown Goode and Tarleton H. Bean, published 1896.
Scientific classification
Kingdom: Animalia   Phylum: Chordata   Class: Actinopterygii   Order: Notacanthiformes
Families
Halosauridae Notacanthidae

Notacanthiformes is an order of deep-sea ray-finned fishes, consisting of the families Halosauridae and Notacanthidae (spiny eels)

The order is of relatively recent vintage; Fishes of the World lists it as a suborder Notacanthoidei of Albuliformes. The notacanthiforms are much more eel-like than the albuliforms; for instance, the caudal fin has disappeared.

References

• "Notacanthiformes". FishBase. Ed. Ranier Froese and Daniel Pauly. January 2006 version. N.p.: FishBase, 2006.
• Joseph S. Nelson. Fishes of the World. John Wiley & Sons. ISBN 0-471-54713-1.