Petromyzon plumbeus, Ayres, W. O., 1855

Ayres, W. O., 1855, [Description of new fishes from California.] (Minutes of Academy meetings were printed in “ The Pacific ” (a newspaper) shortly after each meeting. New species date to publication in The Pacific. Dates of publication are given in each species account), The Pacific 4, No. 7 : [2] col. 4

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