Like other species in this family, this bivalve is called a shipworm, because it resembles a worm in general appearance, while at the anterior end it has a small shell with two valves which is adept at boring through wood. Setae. External Anatomy of the Clam Alitta succinea, also known as the pile worm or clam worm, is a common polychaete worm. Note the head and tail region of the animal, as the specimen will appear different after removal of the shell. Dorsal or upper 5. Start studying Biology EARTHWORM AND CLAM PARTS. Derek B 33,242 views. Your email address will not be published. One of us! I can defend the position. Structure that secretes a cocoon that holds eggs. When disturbed, the worm flares out the bristles … These are up to 2 cm (3⁄4 in) long and correspond to the valves of other bivalve molluscs. This feature is not available right now. WORM LAB due MON 3. This worm can reach up to 15 centimeters (6 inches) in length. The clam worm's distinguishing characteristic, the broad, flat straps on the posterior parapodia, distinguish it from other worms in the Nereididae family. H. Lichtenegger, et al./Proceedings of … Two species of giant clam/piling worm, Nereis branti and N. virens, are difficult to differentiate from each other and are larger versions of the clam worm. Terms in this set (20) Clitellum. Soon after they have released their eggs or sperm, they die. Left valve or shell 2. Notice the variety of specialized structures near the anterior end of the clam worm in the photograph below. Digestive System. Nereis or Neanthes is a marine polychaete annelid that lives in burrows in sea bottom and comes out in night to prey upon small animals.N. Their parapodia enlarge so they can swim. 6. 1. Clam External Anatomy learn by taking a quiz; Online quiz to learn Clam External Anatomy; Your Skills & Rank. The "generalized mollusc" has two paired nerve cords, or three in bivalves. Clam worms are an important food source for bottom-feeding fish and crustaceans, though they can protect themselves by secreting a mucus substance that hardens to form a sheath around them. Segmented Body Earthworms are classified in the phylum Annelida or Annelids. This creates a suction motion. This activity was created by a Quia Web subscriber. Visible Body: Human Anatomy, Atlas, Muscle, Pathology, and Physiology . I think, that you are not right. Photo by Jenn Burt. Digestive System. Advertisement. The clam worm is the ubiquitous worm of the rocky and sandy coast — … Earthworm Dissection Digestive, circulatory, excretory, & reproductive systems HW: 1.Vocab for worms due FRI 2. Remove everything, that a theme does not concern. The clam worms are then capable of releasing eggs and sperm. … Biology Junction – Clam Dissection [Free] Biology Junction – Grasshopper Dissection [Free] Carolina Grasshopper Anatomy Videos ; Clam Dissection PowerPoint [Free] eMind Invertebrates (Crayfish, Earthworm… Total Points. Annelida in Latin means, “little rings.” The body of the earthworm is segmented which looks like many little rings joined or fused together. The bristles are hollow, venom-filled chaeta which easily penetrate flesh and then break off if this worm is handled. They can protect themselves by secreting a mucous substance which hardens to form a sheath around them. It is a freeswimming polychaete, scavenging on the bottom of shallow marine waters. These beautiful flattened segmented worms, reaching 35.6 cm (typically 7-10 cm) in length, with groups of white bristles along each side. The clam worm can reach up to 15 centimetres (6 in) in length, but most specimens are smaller than this. Bivalves usually live on or in sandy or , Planktonic larvae develop, grow into adults and eventually sink to the bottom of the water. Clam, in general, any member of the invertebrate class Bivalvia—mollusks with a bivalved shell (i.e., one with two separate sections). internal anatomy (logitudinal section) identifying the digestive, circulatory and nervous system Introduction:Nereis virensis known popularly as the pile worm, clam worm or rag worm. A clam in its lifecycle may be male, female or hermaphroditic sea-nymph • Nereis /. By a Quia Web subscriber for bait dissections of clams, chitons slugs... Female or clam worm anatomy species of Nereis South Africa.Polychaete - WikipediaClam dissection has identifiable. Quiz clam worm anatomy learn clam External Anatomy learn by taking a quiz ; quiz... Gi track: the anterior and posterior prostomium reach up to 15 (... Egg to an adult, most pass through a larval stage called the trocophore one of a jaw. 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