Didinium is a voracious hunter of live food, namely Paramecium. It is found quite commonly in freshwater habitats such as ponds and other still waters. It is in constant motion, swimming around in search of prey.
1938 S Jefferson Nickel. CoinTrackers.com has estimated the 1938 S Jefferson Nickel value at an average of $3, one in certified mint state (MS+) could be worth $50.(see details)...umismatic Value: $3 to $50.00. Value: As a rough estimate of this coins value you can assume this coin in average condition will be valued at somewhere around $3, while one in certified mint state (MS+) condition could bring as much as $50 at auction.
Value of V Nickels. The value of V nickels are $1.45 to $3.25 each. Also called Liberty Nickels, this price is for common date coins in Good or better condition. Hopefully your coins date back to the early years of mintage, containing many rare and very valuable dates. For example, starting values for a heavily worn Liberty V Nickel dated before 1897 is $4 to $5. Discover an 1885 in your group and its scarcity commands at least $340. Another point to consider is the value of Liberty Nickels jumps dramatically as the Grade or condition improves.