Bathymyrinae, Böhlke, 1949

Smith, David G., 2018, A new genus and species of congrid eel from the Philippines (Anguillliformes: Congridae: Bathymyrinae), Zootaxa 4454 (1), pp. 78-83 : 79

Key to the genera of Bathymyrinae

1a. Opening of posterior nostril exposed in lateral view ....................................................................................................................... 2 1b. Opening of posterior nostril concealed in lateral view...................................................................................................................... 5

2a. Teeth in jaws in multiserial bands ............................................................................................................. Ariosoma Swainson 1838 2b. Teeth in jaws in one or two series .................................................................................................................................................... 3

3a. Upper edge of gill opening above top of pectoral-fin base, enclosing entire pectoral fin; outer row of maxillary teeth blade-like, close-set, forming a cutting edge .......................................................................................................... Paraconger Kanazawa 1961

3b. Upper edge of gill opening below top of pectoral-fin base, not enclosing entire pectoral fin; teeth variable ................................ 4

4a. Intermaxillary tooth patch curved upward at end of snout, fully exposed when mouth closed; maxillary teeth mainly uniserial, forming a cutting edge; IO3 and IO4 pores present .................................................................................. Bathymyrus Alcock 1889

4b. Intermaxillary tooth patch not curved upward at end of snout, not completely exposed when mouth closed; maxillary teeth triserial, not forming a cutting edge; IO3 and IO4 pores absent ......................................................... Chiloconger Myers & Wade 1941

5a. An acute bony projection at end of snout ...................................................................................................... Rostroconger gen. nov. 5b. End of snout rounded and fleshy, without a bony projection ........................................................................................................... 6

6a. Posterior nostril low on side of snout near lip, covered by a flap dorsally .................................. Parabathymyrus Kamohara, 1938

6b. Posterior nostril opening through a ventrally directed tube on edge of upper lip behind labial flange .............................................. ......................................................................................................................................... Kenyaconger Smith & Karmovskaya 2003