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Class: Anopla (when the proboscis has no stylets: the mouth is below or behind the brain.) Jump to: navigation, search In general, a proboscis (from Greek pro before and baskein to feed) is an elongated appendage from the head of an animal. ... The stylet or stomatostyle, is the primitive mouth-parts of the nematode. ... Jump to: navigation, search Please help to figure out license type for the image Comparative brain sizes. For other articles about other subjects named brain see brain (disambiguation). ...
Order: Palaeonemertea (ex: Cephalothrix, Tubulanus)The nerve cords are peripheral and the worms have many simple features. Jump to: navigation, search Nerves redirects here. ... WORM means Write Once, Read Many. ...
Order: Heteronemertea ex: Italic textLineus, CerebratulusItalic text) These are the largest and most muscular nemertines; the main muscle layer is the outer longitudinal one. Structure of a skeletal muscle Muscle is one of the four tissue types. ...
Source: Moore, Janet. An introduction to the invertebrates. Studies in Biology. Cambridge University Press 2001.
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