THE HYPOPHARYNX 

 rb 



81 



FIG. 86. Tons-ue or ligula of the honey bee: A, under side of the tongue; Ip, labial palpi; 

 r, r, rod ; p, pouch : *//. slicuth : <j7t, gathering hairs ; b, bouton or spoon. B, under lip or labium, 

 with appendages, partly dissected ; /, lora or submentum ; a, a, retractor lingua 1 longus ; sd, salivary 

 duct ; rb and b, retractor lingua' biceps ; msr, maxillae ; Ip, labial palpi ; jia, paraglossa ; gr, feeding 

 groove ; sh, sheath of ligula. C, D, E, sections of ligula ; hp, hyaline plate of maxilla ; A, hairs acting 

 as stops; ;;;,<, maxilla; Ip, labial palpi; sd, side duct. F, cross-section of extremity of tongue 

 near the " spoon " ; th, tactile hairs ; r, rod ; n, nucleus ; gh, gathering hairs, (f, cross-section of 

 tongue without gathering hairs, x 400 times ; sh, sheath ; b, blood space ; t, trachea ; >tff, gustatory 

 nerve ; cd, central duct ; xd, lateral duct ; pm, plaited membrane. //, same as G, but magnified 

 two hundred times, and with pm, plaited membrane, turned outwards ; h, closing hairs ; Ip, labial 

 palpi ; &, blood ; n, nucleus ; r, rod ; h, closing hairs. 7, small portion of the sheath ; lettering as 

 before. K, extremity of the tongue, with spoon ; b, branching hairs for gathering. After Cheshire. 

 G 



