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Of the 650 species of leech listed, Hirudo medicinalis is one of the most extensively studied. This annelid from the subclass Hirudinea has 2 suckers, one housing the mouth and its 3 jaws. It lives mainly in the stagnant waters of marshes and ponds. When it comes to reproduction, the animal is a hermaphrodite. Inseminated leeches lay their eggs during the spring and summer months, outside the water, with cocoons containing as many as thirty young.
Here at EarthWorks there are four species of cichlids: the Black Belt Cichlid, the Convict Cichlid, the Green Terror Cichlid and the Jack Dempsey Cichlid. Cichlids species like the Jack Dempsey and the Convict are aggressive toward other fish. All of us at EarthWorks are all close in size, so we tend to get along well.All four species vary in shape and color, but some common colors are black, white, dark blue, and gray with many colored patterns.ichlids species like the Jack Dempsey and the Convict are aggressive toward other fish. All of us at EarthWorks are all close in size, so we tend to get along well. All four species vary in shape and color, but some common colors are black, white, dark blue, and gray with many colored patterns.