Pyrolycus jaco
Pyrolycus jaco Frable, Seid, Bronson & Møller, 2023

Family:  Zoarcidae (Eelpouts), subfamily: Lycodinae
Max. size:  1.07 cm SL (male/unsexed)
Environment:  demersal; marine; depth range 1604 - 1854 m
Distribution:  Eastern Central Pacific: Costa Rica.
Diagnosis:  Dorsal soft rays (total): 37-57; Anal soft rays: 22-43; Vertebrae: 80-80. This species is distinguished from its congeners by the following set of characters: five suborbital bones with 5 pores, occipital pores 2, postorbital pores 3; vertebrae 23 + ~57 = ~80, presence of vomerine 7-8 and palatine teeth 12-15; total gill rakers 2-3+13-15= 16-17, pectoral fin rays 14-15, upper jaw short 33.9-42.4% HLl; snout short 21.3-24.3% HL; precaudal vertebrae 22-23; postorbital pores 3; pectoral-fin rays 4-15 ; occipital pores (1-0-1); eye diameter 12.1-14.9; gill slit 26.9-34.7 (Ref. 137812).
Biology:  This species feeds on benthic sessile invertebrates associated with the hydrothermal seep area. Dissection and scans reveal limpets and snail in the gut of the paratype (Ref 137812).
IUCN Red List Status: Not Evaluated (N.E.) Ref. (130435)
Threat to humans:  harmless


Source and more info: www.fishbase.org. For personal, classroom, and other internal use only. Not for publication.