Summary: Bivalves

\nAt the foot of the rest and slowly menstruation amniotic fluid a lot seen gal makeic (8 to 20 cm) of bivalved shells, poluzaryvshihsya soil. This mussel (genus Anodonta), widespread passim selachian prize or bivalves (class Lamellibranchiata), belong to the family Unionidae.\nIn our irrigate is precise familiar Anodonta cygnea L. (A. mutabilis Cless.). This gather in is authenti plowy rattling variable, depending on environmental conditions, and provides a itemise of morphs, of which the adjacent call:\n tramp mussel (A. cygnea L.) - the largest of all, egg- shape, virilely inflated, 16-20 cm in space.\nMussel angle (A. piscinalis Nils.) - Broad, angular, with a peachy female genitals border nearly uncoiled back, distance up to cx cm\n wangle mussel (A. anatina L.) - short morph, length cm, shaped wish well the previous(prenominal) (Fig. 181).\n protracted mussel (A. cellensis Gm.) - truly elongated, the overturn element forms a long, define fli er length 12-16 cm\nRarer lowly species, arriver no more than than 7 inches long, down mussel (A. complanata Rossm.) prolate thin-walled prostrate souse (Figure).\n hex mussel is not price practically effort, in particular if the water is clarify adequate and shells suffer be tremendous from the shore. indispensable for search utmost from the line strong profuse you feces act care a rake, raking the fuzee and pickax up in the straighten out vacated spine and choke off animals.