ClipArt ETC
"Dissection of tadpole. DL., Lower lip; H., ventricle of heart; DE., oesophagus; NA., head kidney; A., aorta; K., kidney; KU., ureter; DO., cloaca; LH., hind-limb; KV., opening of ureter into cloaca; GR., genital ridge; GF., fatty body; LF., fore-limb; OG., gills; a, epidermis; b, dermis." -Thomson, 1916

Tadpole Dissection

"Dissection of tadpole. DL., Lower lip; H., ventricle of heart; DE., oesophagus; NA., head kidney; A.,…