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Eulagisca gigantea is one of the largest scale worms getting up to 20 centimeters in size. The scale worms are characterized by their body segment amount. They can get up to 40 segments with around 15 pairs of elytra on each segment. [8] Their bodies are large and flattened. The elytra are the scales that are attached to the segments.
Polynoidae is a family of marine Polychaete worms known as "scale worms" due to the scale-like elytra on the dorsal surface. Almost 900 species are currently recognised belonging to 9 subfamilies and 167 genera. [1] They are active hunters, but generally dwell in protected environments such as under stones.
• worldwide: one of the most common human parasites [1] [2] • Developing regions: infects 40–100% of the total populations [1] [2] [3] eating food contaminated with feces from an infected human or animal Cryptosporidiosis: Cryptosporidium spp. intestines stool widespread
These giant earthworms average 1 metre (3.3 ft) long and 2 centimetres (0.79 in) in diameter and can reach 3 metres (9.8 ft) in length; however, their body is able to expand and contract making them appear much larger. On average they weigh about 200 grams (0.44 lb).
The Bobbit worm (Eunice aphroditois) is a predatory species that can achieve a length of 3 m (10 ft)), with an average diameter of 25 mm (1 in). Dimorphilus gyrociliatus has the smallest known genome of any annelid. The species shows extreme sexual dimorphism. Females measure ~1 mm long and have simplified bodies containing six segments, a ...
The North Auckland worm is New Zealand's largest, reaching 1.4 m (4 ft 7 in) long, and 11 mm (0.43 in) in diameter. Its burrows are up to 20 mm (0.79 in) in diameter, and reach a depth of 3.5 m (11 ft). [4] The type locality is on Little Barrier Island on a plateau 200 metres (660 ft) above sea level in forest subsoil. [4]
The bootlace worm (Lineus longissimus) is a species of ribbon worm and one of the longest known animals, with specimens up to 55 m (180 ft) long being reported. [1] Its mucus is highly toxic. [ 2 ]
Alitta succinea (known as the pile worm, clam worm or cinder worm) [3] is a species of marine annelid in the family Nereididae (commonly known as ragworms or sandworms). [4] It has been recorded throughout the North West Atlantic, as well as in the Gulf of Maine and South Africa .