These July remarks, placed at the end of the month, are Lewis's in the Weather Diary and Clark's in Codex C; they are nearly identical, but Lewis has no entry for July 23. Weather observations apparently ceased entirely after July 23 until September 19, as far as known records indicate, except for casual observations in Clark's daily journals.
The words "or buffaloe fish" after "carp" appear only in Lewis's Weather Diary. The pike is probably northern pike. The "catt" is either channel cat or Ictalurus melas, black bullhead. The perch could be Stizostedion canadense, sauger; S. vitreum, walleye; or Perca flavescens, yellow perch. The carp is perhaps Carpiodes carpio, river carpsucker; the carp was not introduced into the United States until 1877. Clark lists "Sun perch" instead of "sunfish." American sunfish belong to the family Centrarchidae. Lee et al., 133, 446, 441, 745, 747, 713, 367, 152, 577–614.