Puck pinnata

Puck pinnata is known only from metamorphosed females. They are distnighuished from most other taxa within Oneirodidae by the length of the pectoral fin lobe which is a similar to the lobes in Ctenochirichthys, Chirophryne and Leptacanthichthys. This species is separated from these taxa in the possession of a short snout, highly convex frontal bones and oblique suspension of the mandible. It has a short, broad mouth, a feature which separates it from Chirophryne and Leptacanthichthys while the possession of robust spines on the sphenotic and angular bones separates it from Ctenochirichthys. The longest of the 4 known specimens had a length of 8.1 cm (3.2 in).

Puck pinnata has been recorded from four widely separated localities. These are the type locality as well as in the eastern tropical Pacific at about 6°N, 88°W, off the Galapagos Islands and in the northeastern Atlantic at about 35°N, 32°W. A report from off the Bōsō Peninsula of Japan needs to be verified. The 4 known specimens, all females, were taken were caught in nets at depths between 1,464 and 4,500 m (4,803 and 14,764 ft).

== References ==

Puck pinnata is the only species in the genus Puck. Pietsch described the figure of Puck from Germanic folklore as "a minor order of mischievous devils, sprites, goblins or demons; a devilish trickster". Pietsch has since confirmed that he used the name because this taxon is a "devil", because it is a member of a group of bathypelagic and mesopelagic anglerfishes colloquially referred to as sea devils or black seadevils. He also said that it was a "trickster" because it is an ambush predator, waiting in the absulote darkness of the deep and lures in prey with bioluminescent bait. The Specific name, pinnata, means "plumed" or "winged", an allusion to the long, thin pectoral fins.