Water measurer Hydrometra stagnorum

Water measurer Hydrometra stagnorum-2

Water measurer Hydrometra stagnorum-3

Water measurer Hydrometra stagnorum-4

Water measurer Hydrometra stagnorum-5

Water measurer Hydrometra stagnorum-6

Water measurer Hydrometra stagnorum-7

Water measurer Hydrometra stagnorum-8

Common Water-measurer – Hydrometra stagnorum