Histochemistry of mucosubstances in the lingual glands of the mongoose.

The histochemistry of mucosubstances in the lingual glands of the mongoose was studied. Both serous and mucous or mixed glands were present in the posterior part of the tongue. In serous glands, acinar cells and occasional duct cells contained granules which gave reactions for neutral mucosubstances only. In mucous glands, tubular cells, acinar cells and duct cells all contained weakly sulphated mucosubstances. Demilune cells contained neutral mucosubstances. Occasional demilune cells contained weakly sulphated mucosubstances. Carboxylated mucosubstances (sialomucins) were not found in the lingual glands.