O-i STUDIES IN COMPARATIVE ANATOMY. 



series of slips between the anterior and posterior longitudinal 

 muscles along the proximal half of the proboscis. 



All these muscles are very intimately connected with the 

 integument, especially in the lower two-thirds of their extent. 



C. and L.— 274-5 ; 276-7 ; 279, fig. 2 (5) ; 280 (b). 



The foregoing muscles form a sort of sheath to the deep radiat- 

 ing and transverse muscles, wliich, with the nasal canals, make up 

 the bulk of the proboscis. The deep muscles are best seen in a 

 cross section of the trunk. 



The radiating muscles consist of very numerous distinct fas- 

 ciculi, stretching directly outwards between the anterior and 

 lateral surfaces of the nasal canals and the skin. 



C. and L.— 280 {d). 



The transverse muscles are in two sets — one short, between 

 the nasal canals ; the other longer and intermixed with a few 

 oblique radiating fibres, behind the canals, and between them and 

 the posterior longitudinal muscles. 



C. and L.— 280 (e). 



Muscles of the External Ear. 



Zygomatieo-aurieularis (portion of attraJiens superior, Wat- 

 son). — A rather strong muscle. Arises from the outer surface of 

 the root of the zygoma, and is inserted into the posterior surface 

 of the cartilage of the ear, immediately behind and below the 

 meatus. 



C. and L.— 274-5 (XII.), " parotido-aurien." 



Attrahens superior (apper portion of attrahens superior, 

 Watson). — A small quadrilateral muscle. Arises from temporal 

 fascia and bone anterior to the aperture of the ear, where the 

 cartilaginous and bony meatus are continuous. Inserted into 

 the aural cartilage, on the lower and anterior surface of the 

 tube. 



ISTot in C. and L. 



AttraJiens inferior arises from the root of the zygoma, close to 

 the meatus, and beneath attrahens superior. Inserted into a 

 small projection of the auricular cartilage which overhangs the 

 meatus. 



Not in C. and L. 



Tragicus arises from the cartilaginous anterior border of the 



