30 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
is not of such pattern as to point out these organs. It seems probable 
that the nerves innervating these organs lose their sheaths before — 
reaching the epidermis. The exact innervation of these organs should 
not be difficult to determine by one of the finer histological methods, — 
and offers an interesting problem. 
H. VISCERAL END ORGANS. 
The organs in which visceral nerves terminate, both efferent and 
afferent, include glands and smooth muscle fibers for the former and 
specific visceral sense organs and mucous membrane epithelium for the 
latter. As no methods were employed to determine the actual nerve 
terminations, a detailed description of these structures at this time 
would have no significance for the general descriptive anatomy of the 
cranial nerves which follows. In Anolis the mucous membrane of the 
mouth cavity, the pharynx, and the nasopharynx presents a variety 
of conditions in different regions which are demonstrable without the 
use of special staining methods. It is throughout richly glandular, the 
glands having the simple vesicular or tubular type along the gums and 
the tongue, while in the postlingual region the epithelium is ciliated 
and has a rich supply of unicellular glands of the goblet-cell type. 
The taste buds are confined almost entirely to the mouth cavity 
proper, although an occasional bud was found in the region of the 
larynx (Plate 4, Fig. 11, gm. gus.). They have the structure which is 
typical for these organs elsewhere, possessing a well-defined gustatory 
pit, in the base of which the sensory cells terminate. These taste 
buds are distributed along areas which stand out as sensory-glandular 
patches along the roof of the mouth and inner gums of both upper and 
lower jaws (Plates 4, 5, Figs. 9-12, gm. gus. m., gm. gus. l.). Their 
position is shown by the course of the sensory rami of nerve VII 
(palatine and chorda tympani). No taste buds were found on the 
tongue itself. Whether there are other sensory buds besides taste 
buds, was a question that suggested itself through the presence of 
clumps of cells which lacked the gustatory pit and were less sharply 
defined but were not like glands in their structure. The fact of 
importance in connection with visceral end organs is that typical 
gustatory buds are readily demonstrated, and their distribution fully 
determined in the series of sections from which the study was made. | 
Upon this are based certain conclusions as to the nature of some of 
the branches of nerve VII. 
