A revision of the Paracanthocobitis zonalternans (Cypriniformes: Nemacheilidae) species complex with descriptions of three new species Author Page, Lawrence M. text Zootaxa 2017 2017-09-26 4324 1 85 107 journal article 31989 10.11646/zootaxa.4324.1.5 e664781d-4584-44b8-b5fa-e0ea029fdc0d 1175-5326 997067 101B3Cb2-7D7E-4232-A4E4-Fca46D90Fdbe Key to species of Paracanthocobitis in the P. zonalternans complex 1. Dark marmorated pattern between dorsal saddles and lateral blotches; teardrop-shaped (vs. circular or triangular ) black spot on upper margin of caudal-fin base................................................................ P. marmorata - No dark marmorated pattern between dorsal saddles and lateral blotches; circular or triangular black spot on upper margin of caudal-fin base........................................................................................2 2. No black pigment extending from black lateral stripe or blotches onto pectoral-fin base..............................3 - Black pigment extending from black lateral stripe or blotches onto pectoral-fin base.................................4 3. Axillary pelvic lobe present; triangular black spot on upper margin of caudal-fin base...................... P. triangula - Axillary pelvic lobe usually absent, occasionally rudimentary; circular black spot on upper margin of caudal-fin base................................................................................................. P. phuketensis 4. Series of black blotches, usually with stripe absent or dusky and ending near the dorsal-fin insertion; minimum HL 17% of SL......................................................................................... P. zonalternans - Black stripe along side of body ending near caudal fin and overlaying lateral blotches; minimum HL 19% of SL.................................................................................................... P. nigrolineata