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snout broad, depressed
nostrils: front tubular, rear in mouthD, A & C joined
D origin before mid-trunktail > 1/2 TL, tip flexibleroof of mouth with teethlarge pectorals -
nostrils: front tubular, rear in mouthD origin over/behind anustail tip flexible, C obviousroof mouth - no teethlarge pectoral
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worm-likeD origin behind mid-trunktail ~2/3 TL, flexible, C not obviousrear nostril: hole before eye, above lippectoral tiny