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  • no pores between or just behind eyes or on top of nape
    Ariosoma anale, Longtrunk conger
    gill opening length < space between gills
    LL 55-59 pores before anus
  • 3 pr pores above eyes, 2 between eyes, 3 pair behind eyes, 3 on nape
    Ariosoma balearicum, Bandtooth conger
    gill opening length < space between gills
    LL 46-52 pores before anus
  • 2 pr pores above eyes, 0 between eyes, 2 pair behind eyes, 0 on nape
    Ariosoma selenops, Mooneye conger
    gill opening length > space between gills
    LL 51-59 pores before anus
  • rear nostril near top edge of eye
    no pores between and behind eyes
    1 pore on nape
    LL 39-45 pores before anus
    Bathycongrus bullisi, Bullish conger
  • rear nostril at mid-eye level
    LL 25-36 pores before anus
    Bathycongrus dubius, Doubtful conger
  • rear nostril near top edge of eye
    pores between & behind eyes
    3 pores on nape
    LL 46-49 pores before anus
    Bathycongrus polyporus, Many-pored conger
  • rear nostril near top edge of eye
    no pores between & behind eyes
    1 pore on nape
    LL 26-29 pores before anus
    Bathycongrus thysanochilus, Fringe-lip conger
  • rear nostril near top edge of eye
    +/- pores between eyes
    1-3 pores on nape
    LL 33-38 pores before anus
    Bathycongrus vicinalis, Neighbor conger
  • head large; tail long
    large head pores
    tail narrowing, soft flexible tip
    Bathyuroconger vicinus, Large-tooth conger
    jaws equal; no lip flanges
    jaw teeth: in bands, multiple rows, front = fangs
    roof mouth teeth: multiple rows, some large
  • no pores behind eyes, 1 pore top of nape
    Conger esculentus, Grey conger
    jaw teeth: 1-2 rows, outer row -> cutting edge
    both lips with flanges, top flange wide
    LL pores before anus 32-36
  • no pores behind eyes, 1 pore top of nape
    Conger oceanicus, Conger eel
    jaw teeth: 1-2 rows, outer row -> cutting edge
    both lips with flanges, top flange wide
    LL pores before anus 37-44
  • 1-2 pores behind eye; 3 pores top of nape
    Conger triporiceps, Manytooth conger
    jaw teeth: 1-2 rows, outer row -> cutting edge
    both lips with flanges, top flange wide
    LL pores before anus 37-44
  • snout long, overhanging , with ventral keel
    LL pores # 2 & ~7-13 elevated, open above LL canal
    Gnathophis bathytopos, Blackgut conger
    top lip: low flange
    stomach black
  • snout long, overhanging , with ventral keel
    LL pores #2 & at least one other elevated, open ab
    Gnathophis bracheatopos, Longeye conger
    top lip: low flange
    stomach pale
  • extremely elongate
    head brown + 2 vertical rows white spots
    body white + 2 oblique dark stripes
    Heteroconger camelopardalis, Giraffe spotted garden eel
  • extremely elongate
    front 2/3 brown + small pale spots, rear 1/3 yello
    Heteroconger longissimus, Brown garden eel
  • extremely elongate
    bright yellow above, white below
    Heteroconger luteolus, Yellow garden eel
  • tail >60% TL, tip soft, flexible
    rear nostril eliptical, before eye
    D origin before gill slit
    black fins & gill chamber
    Japonoconger caribbeus, Caribbean conger
    lip flanges - lower only, narrow
    teeth: bands on jaws, between top jaws isolated patch
    vomer teeth: broad, long patch
    pectoral large, base ends above gill opening
  • snout length ~eye
    D origin over pectoral
    tail tip stiff
    Paraconger caudilimbatus, Margintail conger
    flanges on both lips, hollow behind top flange not divided
    pectoral base within limits of gill opening
  • snout swollen, projecting
    nape - no pores
    rear nostril - before mid-eye
    D origin behind pectoral
    tail tip soft & flexible
    Pseudophichthys splendens, Splendid conger
    top lip no flange
    jaw teeth - broad bands
    center top jaws - wide tooth patch joins broad patch center roof mouth
  • no pore between 2 nostrils
    snout large, cónical, overhangs exposed tooth patch under
    Rhynchoconger flavus, Yellow conger
    center roof of mouth: tooth patch square
    stomach pale
  • pore before rear nostril
    snout large, conical, overhangs exposed tooth patch under
    Rhynchoconger gracilior, Whiptail conger
    center roof of mouth: tooth patch square
    stomach black
  • no pore before rear nostril
    snout large, conical, overhangs exposed tooth patch under
    Rhynchoconger guppyi, Guppy’s conger
    center roof of mouth: tooth patch triangular, slightly elongate
    stomach black
  • top lip no flange
    tail tip soft & flexible
    Uroconger syringinus, Threadtail conger
    teeth exposed under snout
    center roof mouth - 1 long row teeth