XII 



PHYLUM CIIORDATA 



415 



forwards parallel with the stomach ; the rest of the small 

 intestine is twisted into a coil. The large intestine or rectum 

 (ret.} is very wide and short, and passes without change of 

 diameter into the cloaca (d.}. 



The liver (lr.} is two-lobed ; between the right and left 

 lobes lies a large gall-bladder. The pancreas (pn} is an 



vo.1 



FIG. 235. Rana temporaria. Dissection from the left side ; the viscera somewhat 

 displaced, an. anus ; b. d. bile-duct ; b. hy. body of hyoid ; bl. urinary bladder ; 

 bl '. its opening into cloaca ; c. art. conus arteriosus ; cblm. cerebellum ; cl. 

 cloaca; en. 3, centrum of third vertebra ; cp. ad. corpus adiposum ; c*b. h. cere- 

 bral hemisphere ; d. ly. s. dorsal lymph sinus ; dii. duodenum ; ep. cor. epicora- 

 coid ; eus. t. Eustachian tube ; FR. PA. fronto-parietal ; gl. glottis ; gtil. gullet ; 

 it., ilium; is. ischium ; kd. kidney; /. au. left auricle; Ling, left lung; Ir. 

 liver; M. MCK. mento-meckelian ; n.a.i, neural arch of first vertebra; olf. I. 

 olfactory lobe ; opt. 1. optic lobe ; o. ST. omo- and epi-sternum ; pcd. peri- 

 cardium ; PMX. premaxilla ; pn. pancreas ; /. na. posterior naris ; pu. pubis ; 

 ret. rectum ; r. Ing. right lung ; s. int. small intestine ; sp. cd. spinal cord ; 

 SPH. ETH. sphenethmoid ; spl. spleen ; st. stomach ; s. v. sinus venosus ; tng. 

 tongue ; ts. testis ; ur. ureter ; ur '. its aperture into the cloaca ; UST. urostyle ; 

 v . ventricle ; v. ly. s. ventral lymph sinus ; vo. t. vomerine teeth ; vs. sent. 

 vesicula seminalis. 



irregular gland surrounding the bile-duct, into which it 

 pours its secretion ; the spleen (spl.} is a small, red globular 

 body attached near the anterior end of the rectum. 



The lungs (L Ing., r. Ing.} are elastic sacs lying in the 



