THE BRAGHIOPODA. 



399 



Fig. 116.— Lateral view of the viscera of Waklkeimia australis (after Hancock, " On 

 the Organization of the Brachiopoda," " Phil. Trans.," 1858). a, " dorsal " layer 

 of mantle; 6, "ventral "' layer; c, anterior walls of the body between tlie mantle 

 lobes ; d, arms ; p, eullet; q, stomach with cut biliary ducts of the left side ; i\ riuht 

 hepatic mass; s, intestine ending Cfecally below ; v, so-called " auricles; " o. the 

 right "pseudo-heart," the left being almost wholly removed ; w. pyriform vesicle 

 fixed at the back of the stomach; z, oesophageal ganglia; e,^', adductor; ^, divari- 

 cator ; I, adjuster muscles ; n. peduncles. 



26 



