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Flatfish Family, PLEURONECTIDAE, Bothidae

Flatfish Family, PLEURONECTIDAE, Bothidae. Adults are not bilaterally symmetrical Ability to change color to match substrate Long dorsal and anal fins, usually without spines. Flatfishes of the San Francisco Bay. California Halibut Rock Sole C – O Turbot Sand Sole Diamond Turbot

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Flatfish Family, PLEURONECTIDAE, Bothidae

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  1. Flatfish Family, PLEURONECTIDAE,Bothidae • Adults are not bilaterally symmetrical • Ability to change color to match substrate • Long dorsal and anal fins, usually without spines

  2. Flatfishes of the San Francisco Bay California Halibut Rock Sole C – O Turbot Sand Sole Diamond Turbot English Sole Butter Sole Pacific Sanddab Speckled Sanddab Mouth Extends Beyond Eye Lateral Line without Dorsal Branch Abrupt Arch in Lateral Line Above Pectoral Fin First 4 – 6 Dorsal Rays Extend onto Blind Side First 4 – 5 Dorsal Rays Free of Membrane No Abrupt Arch in Lateral Line Dorsal Branch of Lateral Line > Half Distance to Caudal Fin 0 – 2 Dorsal Rays Extend onto Blind Side Tail Indented Lateral Line with a Dorsal Branch Tail Rounded No Dorsal Branch to the Lateral Line Pectoral Fin Projected Forward Falls About Mideye Pectoral Fin Projected Forward Falls Behind Eye

  3. 66 -76 rays 49 - 59 rays California Halibut(CAH)Paralichthys californicus Native • Lateral line has an abrupt arch over pectoral fin • Maxilla extends beyond eye • Tail truncate or indented • Eyes can be on either side of the head

  4. Sand Sole(SAS)Psettichthys melanostictus Native • First 4 to 5dorsal rays free • No abrupt arch in lateral line • Lateral line with dorsal branch • 0 - 2 anteriormost dorsal rays extend onto blind side

  5. Diamond Turbot (DMT) Hypsopsetta guttulata Native • Lateral line w/o an abrupt arch over pectoral fin • 0 – 2 anteriormost dorsal rays extend onto blind side • Dorsal branch of lateral line extends posteriorly more than ½ distance to caudal fin

  6. 71 - 93 rays 52 - 70 rays English Sole(ELS)Parophrys vetulus Native • 0 – 2 anteriormost dorsal rays extend onto blind side • Lateral line has a dorsal branch that extends < half the distance to caudal fin • Noscales on fins • Eye is visible from blind side

  7. 52 - 64 rays 61 - 69 rays Starry Flounder(STF)Platichthys stellatus Native • Lateral line without a dorsal branch • Dark and light bars in dorsal, anal, and caudal fins • Patches of rough scales on pigmented side

  8. Acknowledgements Presentation compiled by: John Pedretti - USFWS Pictures donated by: Jerry Morinaka - CDFG Rene Reyes - USBR Tom Greiner - CDFG The internet

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