The pointy-nosed blue chimaera (Hydrolagus trolli), also known as the pointy-nosed blue ratfish, Ray Troll's chimaera or abyssal ghostshark, is a species of deep-sea fish in the family Chimaeridae.

[1][2][3][4][5] The specific name trolli honors Ray Troll, an American artist who has featured chimaeras in his art.

[1] Specimens provisionally assigned to this species have also been seen in waters near California and Hawaii, alive, in 2009.

[1][3] The species has no commercial value, but it occurs as bycatch in fisheries with deep-water benthic trawls.

However, most of the habitat of this species is deeper than where deep-water fisheries typically operate.