THE NECTURUS 21 



Femoro-fibularis 

 Piriformis 

 Ischiocaudalis 

 Femorocaudalis 



Iliotibialis 



Ilioextensorius 



Iliofibularis 



Muscles of the Thigh 



Muscles of the Forearm 



Extensor ulnaris 



Extensor radialis profundus 



Extensor radialis superficialis 



Palmaris metacarpals 



Flexor radialis 



Palmaris superficialis 



Pronator 



Supinator 



After making the observations on the external parts, 

 skin the animal by cutting along the mid line of the back, 

 being careful in removing the skin from the legs and from 

 parts that might tear off. In skinning over the gills, care 

 must be taken or they will pull off with the skin. Note the 

 myotomes and the myocommata that divide them. Note 

 the rows of slime glands on the tail and find the different 

 areas o t n which they are located. Is there a lateral line in 

 Necturus? Before starting the dissection, study the 

 skinned animal as a whole and note the direction of the 

 fibers in the muscle sheets. As you study the different 

 regions, make tables showing the origin, insertion, and 

 function of the muscles. Study the bones of the skull 

 before starting on this section. Since the muscles are 

 mostly attached to the skeleton, it is necessary to familiarize 

 yourself with the skeletal region in which you are to work. 

 Skeletons both dried and preserved in alcohol as well as 

 charts should be provided for this part of the study. 



