The cuticle and epidermal cells of Dero obtusa (family Naididae).
D000818:Animals; D000845:Annelida / Q000166:cytology*; D003094:Collagen / Q000096:biosynthesis*; D003593:Cytoplasm; D004847:Epithelial Cells; D006056:Golgi Apparatus; D008854:Microscopy, Electron; D009093:Mucus / Q000378:metabolism*
D003094:Collagen