XIII 



PHYLUM CHORDATA 



119 



f .lels (nst.\ into the coelome ; a short distance from the funnel 

 each gives off a blind pouch, which dilates at the end and forms a 



cl 



mesonephros ; mt. n. d. metanephric duct; mt. nph. metanephros ; nst. nephrostome ; 

 ovary ; p. n. d. and sg. d. pronephric duct ; p. nph. pronephros ; t. testis ; v. e. \ 



ov. 

 vasa 



eflerentia. 



Malpighian capsule (m. c.),and a branch from the aorta entering it 

 gives rise to a glomerulus. 



