Landacre, Taste Buds of Anieiiinis. 



15 



group appear simultaneously on the first, second and third gill 

 arches. No buds appear on the skin of the outer surface of the 

 head until in series N, 25 hours after they appear in the oral cav- 

 ities and the pharynx. The first to appear on the outer surface 

 of the head spread continuously from those just inside the lips. 



TABLE III. 



Table showing gross distribution in oral, pharyngeal and cutaneous groups. 



In the case of the maxillary barblet buds, an exception to this 

 statement might be taken. In discussing those buds later they 

 are catalogued as appearing in K'; but, since the lateral portions 

 of the upper lips are continuous with the inner and lateral por- 

 tions of the maxillary barblet, it is impossible to state positively, 

 owning to the relation of the barblet to the lips, whether they are 

 inside the mouth or on the outer surface of the head. The above 

 statement is correct for all cutaneous buds aside from the doubt- 

 ful ones on the maxillary barblet. 



From the table it will be seen also that the total number of buds 

 in the oral cavity is greater than that in the pharyngeal for the 

 first four series excepting in K'; from series O' on the total number 

 of buds in the pharynx is greater than in either the oral or cutane- 

 ous groups excepting the maxillary barblet buds and after series 

 Q is greater than both of them combined. This inequality may 

 possibly disappear after the cutaneous group secures its full com- 

 plement of buds, which is much later than any series studied. 



The relation of the oral and cutaneous buds will be discussed 



