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Erpobdella obscura is a freshwater ribbon leech common in North America. It is a relatively large leech and is commonly used as bait by anglers for walleye and other sport fish. In Minnesota, live bait dealers annually harvest over 45,000 kg of bait-leeches, raising concerns of over-harvest. [3]
The species of this genus are found in Europe and Northern America. [1] The World Register of Marine Species accepts one species within Cystobranchus. [2] Cystobranchus is also known as a leech, and it is a freshwater leech, usually found in revisers, streams, lakes, and ponds across North America.
Back of Macrobdella decora – note the row of orange dots down the middle and the two sets of black ones on the sides.. Macrobdella decora is a medium-sized leech, growing between 5 and 8.5 cm (2.0 and 3.3 in) long, and weighing from 1.48 to 3.69 grams (0.052 to 0.130 oz).
Pontobdella californiana is a species of marine leech found off the southern Pacific coast of North America. They are relatively large, greenish, tubercle-covered leeches who parasitize skates and rays. The species was scientifically described in 2015 based on previously-collected specimens and has since been recorded elsewhere.
Philobdella floridana is a species of leech that lives in the most southern parts of the United States. It is known only from Lake Okeechobee in Florida, and is probably conspecific with Philobdella gracilis. [2]
Motobdella montezuma is nocturnal, resting at the bottom of the well during the day, when predatory waterfowl are present. [7] As night falls, the leeches swim towards the surface and hunt amphipods near the surface; this is the only instance of a leech hunting in open water. [7]
The species, which is legally protected, can now be found in just 150 ponds across Kent, Hampshire and Dorset, Cumbria and Wales. Arran Harvey, an aquarist at London Zoo, has overseen the breeding ...
Helobdella is a genus of leeches in the family Glossiphoniidae, the freshwater jawless leeches. They occur worldwide. [1] These are small, flat leeches which do not feed on blood. [2] Several species in this genus are used as model organisms in the study of developmental biology. [1] It has been difficult to define species in this genus without ...