24 



7/iu.s.bds 



or. a. ft 



SECT. 



ctlrctp 



peri.bd. 



FIG. 683. Doliolum. Diagram of the sexual form. atr. ap. atrial aperture surrounded by 

 lobes ; atr. cav. atrial cavity ; d. tbc. dorsal tubercle ; end. endostyle ; lit. heart ; int. intestine ; 

 mus. Ms. muscular bands ; ne. gn. nerve-ganglion ; or. ap. oral aperture ; or. ovary ; peri. M . 

 peripharyngeal band ; ph. pharynx ; stiff, stigma ; stom. stojnach ; test, testis. (After Herd- 

 man.) 



or. dp 



FIG. 684. Salpa democratica, asexual form, ventral view. atr. ap. atrial aperture ; blanch, 

 dorsal lamina ; end. endostyle ; Id. heart ; mus. Ms. muscular bands ; ne. gn. nerve-ganglion ; 

 proc. processes at the posterior end ; sens. org. sensory organ ; stol. stolon. (After Vogt and 

 Jung.) 



or.a.p 



stom. 



Int 



FIG. 685. Salpa, semi-diagrammatic lateral view. an. anus ; atr. ap. atrial aperture ; branch, 

 dorsal lamina ; dors. tubl. dorsal tubercle ; ht. heart ; hyp. hypophysis ; lancj. languet ; mus. bds, 

 muscular bands ; ne.gn. nerve ganglion ; or. ap. oral aperture ; ov. ovary in ovisac ; stom. stomach 

 (After Herdman.) 



