Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Plate 3, Figure 8: Trichodina sp. from a juvenile coho salmon gill scraping fixed in Schaudinn’s fluid. Note the denticulate ring (arrow). FeH stain. X1000. 5187w x 3430h (72 dpi). 72.042 in. x 47.639 in.
