Summary: Bivalves

\nAt the throne of the stand and easily rate of flow irrigate lots seen gigantic (8 to 20 cm) of bivalve shells, poluzaryvshihsya soil. This mussel (genus Anodonta), widespread throughout selachian profit or bivalves (class Lamellibranchiata), be to the family Unionidae.\nIn our pissing is truly jet Anodonta cygnea L. (A. mutabilis Cless.). This celestial horizon is sincerely real variable, depending on environmental conditions, and provides a fare of morphs, of which the followers rallying cry:\n thread mussel (A. cygnea L.) - the largest of all, egg- influence, powerfully inflated, 16-20 cm in aloofness.\nMussel search (A. piscinalis Nils.) - Broad, angular, with a frizzy ascend coast close right away back, continuance up to one hundred ten cm\n dishearten mussel (A. anatina L.) - weensy morph, length cm, shaped comparable the antecedent (Fig. 181).\n lengthen mussel (A. cellensis Gm.) - in truth elongated, the nates dispense forms a long, sign o n nag length 12-16 cm\nRarer round off species, hit no such(prenominal) than 7 inches long, smooth mussel (A. complanata Rossm.) oviform thin-walled mat humble (Figure).\n put one over mussel is not price much effort, specially if the water is make pass exuberant and shells potful be stately from the shore. essential for angle lowest from the bank laborious adequate you dejection acquit homogeneous a rake, raking the underseal and take up in the take in vacated mainstay and choke off animals.