Ichthyology Lab Exam 2

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18 Terms

1
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<ul><li><p>Dark black line</p></li><li><p>Anal fin directly below 1st dorsal</p></li></ul><p></p>

  • Dark black line

  • Anal fin directly below 1st dorsal


Atherinops affinis (Topsmelt)

2
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<ul><li><p>Anal fin behind 1st dorsal fin</p></li><li><p>Pectorals higher on body</p></li></ul><p></p>

  • Anal fin behind 1st dorsal fin

  • Pectorals higher on body


Atherinopsis californiensis (Jacksmelt)

3
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<ul><li><p>Teardrop spot below eye</p></li></ul><p></p>

  • Teardrop spot below eye


Gambusia affinis (Western Mosquitofish)

4
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<ul><li><p>Curved lateral line, “stitching”</p></li><li><p>Dark spot on the operculum</p></li></ul><p></p>

  • Curved lateral line, “stitching”

  • Dark spot on the operculum


Trachurus symmetricus (Jackmackerel)

5
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<ul><li><p>Pectoral fin folded forward reaches mid-eye</p></li><li><p>Sinistral</p></li></ul><p></p>

  • Pectoral fin folded forward reaches mid-eye

  • Sinistral


Citharichthys sordidus (Pacific Sanddab)

6
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<ul><li><p>Pectoral fin folded forward doesn’t reach mid-eye</p></li><li><p>Sinistral</p></li></ul><p></p>

  • Pectoral fin folded forward doesn’t reach mid-eye

  • Sinistral


Citharichthys stigmaeus (Speckled Sanddab)

7
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<ul><li><p>Hook on jaw</p></li><li><p>Lateral line arches high over pectoral fin</p></li><li><p>Both dextral and sinistral</p></li></ul><p></p>

  • Hook on jaw

  • Lateral line arches high over pectoral fin

  • Both dextral and sinistral


Paralichthys californicus (California Halibut)

8
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<ul><li><p>No hook on jaw</p></li><li><p>Arch in lateral line</p></li><li><p>Dextral</p></li></ul><p></p>

  • No hook on jaw

  • Arch in lateral line

  • Dextral


Hippoglossus stenolepis (Pacific Halibut)

9
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<ul><li><p>Large mouth</p></li><li><p>Large teeth</p></li><li><p>Eye visible from blind side</p></li><li><p>Dextral</p></li></ul><p></p>

  • Large mouth

  • Large teeth

  • Eye visible from blind side

  • Dextral


Atheresthes stomias (Arrowtooth Flounder)

10
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<ul><li><p>Big teeth</p></li><li><p>Eye not visible from blind side</p></li><li><p>Dextral</p></li></ul><p></p>

  • Big teeth

  • Eye not visible from blind side

  • Dextral


Eopsetta jordani (Petrale Sole)

11
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<ul><li><p>Pointed pectoral fins</p></li><li><p>Dextral</p></li></ul><p></p>

  • Pointed pectoral fins

  • Dextral


Glyptocephalus zachirus (Rex Sole)

12
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<ul><li><p>Stripes on fins</p></li><li><p>Both dextral and sinistral</p></li></ul><p></p>

  • Stripes on fins

  • Both dextral and sinistral


Platichthys stellatus (Starry Flounder)

13
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<ul><li><p>Skinny</p></li><li><p>No large arch in lateral line</p></li><li><p>Dextral</p></li></ul><p></p>

  • Skinny

  • No large arch in lateral line

  • Dextral


Lyposetta exilis (Slender Sole)

14
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<ul><li><p>C-O spot shape on caudal fin</p></li><li><p>“googly eyes”</p></li><li><p>Dextral</p></li></ul><p></p>

  • C-O spot shape on caudal fin

  • “googly eyes”

  • Dextral


Pleuronichthys coenosus (C-O Turbot)

15
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<ul><li><p>Dorsal fin rays go all the way to the blind side and reach mouth</p></li><li><p>Dextral</p></li></ul><p></p>

  • Dorsal fin rays go all the way to the blind side and reach mouth

  • Dextral


Pleuronichthys decurrens (Curlfin Turbot)

16
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<ul><li><p>Can see eye on blind side</p></li><li><p>Dextral</p></li></ul><p></p>

  • Can see eye on blind side

  • Dextral


Parophrys vetulus (English Sole)

17
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<ul><li><p>3-4 free fin rays</p></li><li><p>Dextral</p></li></ul><p></p>

  • 3-4 free fin rays

  • Dextral


Psettichthys melanostichus (Sand Sole)

18
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<ul><li><p>Small mouth</p></li><li><p>Dextral</p></li></ul><p></p>

  • Small mouth

  • Dextral


Microstomus pacificus (Dover Sole)