nemertean การใช้

• In nemerteans, rhabdites form mucus on which the animals glide.
• There is very little direct significance of nemertean worms to humans.
• Most nemerteans have two to six ocelli, although some have hundreds.
• Enoplan nemerteans are known from all continents and all seas.
• Most nemerteans are dioecious, although there are a few hermaphroditic hoplonemerteans.
• Very little is known about nemertean ecology, distribution, or abundance.
• Also, many nemerteans produce toxins of which some are nicotinic agonists.
• A nemertean is generally recognized in the field by the way it moves.
• Nemerteans are common predators in a variety of habitats.
• Enoplan nemerteans are typically found in the sea, in the littoral among algae.
• Other coastal nemerteans have devastated clam beds.
• Like other nemerteans, " Lineus longissimus " feeds using its eversible proboscis.
• Free-living marine suctorial nemerteans appear to be food specialists feeding primarily on amphipods.
• It has been suggested that three fossil species may be nemerteans, but none is confirmed.
• Enoplan nemerteans are generally small, from less than up to, although larger species exist.
• Very little is known about the ecology of pelagic nemerteans, including diet and feeding behavior.
• The record of nemerteans is extremely sparse, as would be expected from a soft-bodied animal.
• Traditional taxonomy says that nemerteans are closely related to flatworms and that both are relatively " primitive " acoelomates.
• While most nemerteans are rather drab in color, others are more conspicuous with striking pigment patterns and coloration.
• Natural threats include predation of juveniles by turbellarian and nemertean flatworms ( especially in captivity ), and raccoons.