A new genus and species of congrid eel from the Philippines (Anguillliformes: Congridae: Bathymyrinae) Smith, David G. Zootaxa 2018 2018-07-31 4454 1 78 83 Böhlke 1949 [410,589,554,580] Actinopterygii Congridae GBIF Animalia Anguilliformes 1 79 Chordata subFamily 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 18382b. 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