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Appearance
and Identification:
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Small lamprey: 14-27 cm TL
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Two dorsal fins
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Body segments (myomeres): 58-65
·
Body coloration: dark body and lower oral hood, may have ridge of
light pigmentation near tail
·
Oral disc length about 9% of TL, wider than head
·
Most prominent teeth of California lampreys
o
Supraoral lamina: 3 cusps
o
Transverse lingual lamina (tongue plate): 20-29 cusps
o
Four inner lateral plates on both sides:
(bicuspid-tricuspid-tricuspid-bicuspid)
o
Anterior field above mouth:13 teeth
o
Posterior field below mouth:18 teeth
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