Calliobdella punctata is a species of leech that belongs to the family Piscicolidae. These leeches are commonly known as fish leeches, reflecting their parasitic relationship with fish.
Description & Characteristics
Calliobdella punctata is a relatively small leech, typically reaching a maximum size of around 10 mm. Its body is elongated and segmented, with a characteristic reddish-brown color. The leech is distinguished by the presence of numerous small, dark spots or “puncta” scattered across its body, giving rise to its specific epithet “punctata”.
Habitat and Occurrence
Calliobdella punctata is primarily found in marine environments, inhabiting coastal waters along the shores of the North Atlantic Ocean. This leech is particularly common in the intertidal zone, where it readily attaches itself to a variety of marine organisms, including fish, crustaceans, and seaweed. Calliobdella punctata is also known to occur in deeper waters, with reports of its presence extending down to depths of around 50 meters. Calliobdella punctata is a resident of the neritic zone, the area of the ocean extending from the shoreline to the edge of the continental shelf.
Taxonomy
Calliobdella punctata belongs to the class Clitellata, which encompasses a diverse group of segmented worms that includes earthworms and leeches. Within the Clitellata, Calliobdella punctata falls under the order Rhynchobdellida, an order that comprises leeches with a proboscis used for feeding. Finally, Calliobdella punctata is part of the family Piscicolidae, which is a group of leeches specialized for parasitizing fish.
Feeding
Calliobdella punctata is an ectoparasite, meaning it lives on the external surface of its host. It feeds on the blood of its host, primarily fish, by using its proboscis to pierce the skin and draw blood. This feeding behavior can cause harm to the host, potentially leading to anemia or infection. While Calliobdella punctata is known to be a relatively common parasite, it is generally not considered a significant threat to the overall health of its fish hosts.
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