//. TUNICATA: COPELAT^. 



507 



YiG .A4:.~0tkopleuracophocerca (After FoL). A, the whole animal, roraove.l from its 



house, dorsal view; i? hody, side view with base of tail. «, anus ; c. notochf)rd; 



ft, branchial region ; cT . stomach; e?*, endostyle ; /, ciliated peripharvnKeal 



bands ■ g, g\ brain and first gant,'liun of tail; /i, testis; m, mouth ; o w ovary 



5, gill silts. -^ " 



Fig. o4o.— C/ona intestinalis. A, from the left side, the cellulose tunic and dermal 

 muscular sac removed; i?, from the right side, the tunic entirely removed, pharynx 

 opened from, the mouth, a, anus; c, cellulose tunic below with adhesive processes; 

 c7, cloaca; rf, rectum; ^, atrial opening; eu, endostyle ending above in the peri- 

 pharyngeal hand; g, ganglion; /(, mouth of the 'hypophysis'; kr, heart, with peri- 

 cardium ; ho, branched testes ; i. oral opening; /:, gill sac ; m, muscular sac ; oe, 

 oesophagus ; od, oviduct, the black line beside it the vas deferens ; ox\ ovary ; s. 

 partition between atrium and body cavity ; st, stomach ; /, crown of tentacles. 



