| 1. | They are characterized by the complex male genitalia, with eversible complementary sclerites.
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| 2. | The eversible proboscis is clearly divided into two parts.
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| 3. | Traditional synapomorphies include the rhynchocoel and eversible proboscis.
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| 4. | "Ottoia " was a burrower that hunted prey with its eversible proboscis.
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| 5. | Like other nemerteans, " Lineus longissimus " feeds using its eversible proboscis.
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| 6. | Leeches often have an eversible proboscis, or a muscular pharynx with two or three teeth.
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| 7. | It grows up to long, with 4 6 black eyespots, and has a long eversible proboscis.
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| 8. | The alimentary canal is straight, consisting of an eversible pharynx, an intestine, and a short rectum.
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| 9. | The honey badger possesses an anal pouch which, unusual among mustelids, is eversible, a trait shared with hyenas and mongooses.
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| 10. | The male androconial organs consist of a pair of large eversible hair-tufts that are attached to the genitalia, within the abdomen.
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