Histochemical analysis of mucosubstances of the mid-gut gland in the mussel Lamellidens consobrinus Lea.

The mid-gut gland of the fresh water mussel Lamellidens consobrinus is located on both sides of the crystalline style sac and the conducting chamger of the intestine. Standard histochemical techniques were employed for the detection of mucosubstances elaborated by the mid-gut gland. The results show that he gland secretes neutral mucins and sialomucins which act as lubricants and are involved in converying good particles during feeding.