Calliobdella nodulifera is a species of leech belonging to the family Piscicolidae. It is a relatively small leech, with adults reaching a maximum size of approximately 15 millimeters in length.
Description & Characteristics
Calliobdella nodulifera is characterized by its elongated, cylindrical body and a distinctive reddish-brown coloration. It possesses a pair of prominent eyes located at the anterior end of its body. The leech’s body is covered in numerous small, wart-like bumps or nodules, giving it a roughened texture. This feature is particularly prominent on the dorsal surface of the leech and distinguishes it from other closely related species.
Habitat and Occurrence
Calliobdella nodulifera is a marine leech found in a variety of coastal habitats. It is typically found attached to the skin or gills of fish, where it feeds on their blood. This leech is particularly prevalent in the temperate waters of the North Atlantic Ocean, inhabiting coastal areas from the northeastern United States to the eastern coast of Canada. It can be found in both shallow and deeper waters, with a depth range extending to approximately 100 meters.
Taxonomy
The species Calliobdella nodulifera belongs to the Class: Clitellata, Order: Rhynchobdellida, and Family: Piscicolidae. The Clitellata is a large group of segmented worms that includes earthworms, leeches, and other related species. The order Rhynchobdellida encompasses leeches that possess a protrusible proboscis, used for piercing and sucking blood. The family Piscicolidae is a diverse group of leeches that are primarily parasitic on fish.
Feeding
Calliobdella nodulifera is a hematophagous leech, meaning it feeds solely on blood. The leech uses its proboscis, a sharp, needle-like structure, to pierce the skin of its host, typically fish. Once attached, it releases an anticoagulant substance that prevents the blood from clotting, allowing it to feed for extended periods. This feeding behavior can cause significant damage to the host, leading to anemia and other health problems.
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