Rubicundus lakeside (Mincarone & McCosker 2004)

This species is distinguished from its congeners by the following characters: teeth with 3/3 multicusp pattern (vs. 3/3-4 in R. lopheliae ; 3/2 in R. rubicundus); prebranchial pores 15 (vs. 26 in R. eos, 19-21 in R. lopheliae); trunk pores 50 (vs. 75-77 in R. eos, 62 in R. rubicundus); tail pores 19 (vs. 26 in R. eos), total pores 80 (vs. 128-130 in R. eos, 100-102 in R. rubicundus) and by having two bilaterally symmetrical nasal-sinus papillae (vs. no nasal-sinus papillae in R. eos and R. lophelia) (Ref. 123790).Description: gill pouches 5 pairs; three-cusp multicusps in anterior and posterior rows; 6 unicusps in each anterior and posterior rows; total cusps 36. palatine tooth triangular. Colouration: body pinkish-orange (Ref. 55621).

Collected with a galvanized metal minnow trap where the bottom ws nearly flat, covered with fine grey sediment and occasional lava boulders (ca. 0.5 in diameter) in the vicinity of other large lava reefs. Temperature at depth was 8°C and there was a current of about 0.3 knot. Also observed at and near the locality were several pelagic holothurians (Pelagothuria nanatrix Ludwig), hagfishes (Eptatretus grouseri McMillan and E. wisneri McMillan), catsharks (Apristurus spp.), combtooth dogfish (Centroscyllium nigrum Garman), chimaeras (Hydrolagus spp.), witch eels (Facciolella equatorialis (Gilbert)), viperfish (Chauliodus sloani Bloch & Schneider), grenadier (Nezumia loricata loricata (Garman)), cardinalfish (Epigonus merleni McCosker and Long), batfishes (Dibranchus erinaceus (Garman)), ateleopodids (Guentherus altivelis (Osório)), bythitids (Diplacanthopoma jordani (Garman)), and an undescribed scorpionfish (Phenacoscorpius sp.) (Ref. 55621). (Ref. 55621).

Size of 27.5 cm TL is that of an immature female. Collected with a galvanized metal minnow trap where the bottom was nearly flat, covered with fine grey sediment and occasional lava boulders (ca. 0.5 in diameter) in the vicinity of other large lava reefs (Ref. 55621). Minimum depth from Ref. 58018.

fisheries:

Rubicundus lakeside, the Lakeside hagfish, is a species of jawless fish in the family Myxinidae.

It was originally classified in the genus Eptatretus, but a 2013 analysis reclassified into the new genus Rubicundus, considered the most basal genus of hagfish. The specific epithet lakeside honors the Lakeside Foundation of California for supporting the work of Michael Mincarone, one of its descriptors.

This species is only known from deep water habitats off the coast of the Galápagos Islands. It is known from a single specimen collected in a lava reef off Fernandina Island. Nothing is known about its life history or ecology.

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Rubicundus lakeside Rubicundus generoko animalia da. Arrainen barruko Myxinidae familian sailkatzen da.