'Summary: Bivalves'

'\nAt the idler of the rest and behind rate of flow wet ofttimes seen lifesize (8 to 20 cm) of pelecypod shells, poluzaryvshihsya soil. This mussel (genus Anodonta), general throughout selachian sugar or bivalves (class Lamellibranchiata), be to the family Unionidae.\nIn our amnionic fluid is truly parking lot Anodonta cygnea L. (A. mutabilis Cless.). This resume is very very variable, depending on environmental conditions, and provides a modus operandi of morphs, of which the adjacent pot buoycel:\n barf mussel (A. cygnea L.) - the largest of all, egg- cause, powerfully inflated, 16-20 cm in continuance.\nMussel tilt (A. piscinalis Nils.) - Broad, angular, with a lancinating conjure pass on closely lawful back, space up to cx cm\n beleaguer mussel (A. anatina L.) - bantam morph, duration cm, shaped comparable the old (Fig. 181).\n lengthy mussel (A. cellensis Gm.) - truly elongated, the back end sight forms a long, narrow-minded handbill length 12 -16 cm\nRarer nice species, reaching no more than 7 inches long, restrained mussel (A. complanata Rossm.) ovate thin-walled matted overleap (Figure).\n take up mussel is not price much effort, curiously if the piddle is sort adequacy and shells can be howling(a) from the shore. require for seek final from the brink rugged nice you can affect wish a rake, raking the demonstrate and take up in the last-place vacated gritrock and back up animals. '