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length of the pharynx in Camelides (Lesser). The unusual wealth 
of glands in the digestive tract of these animals is a result of their 
mode of living. Numerous plants on which they feed in a wild 
state are abundantly covered with large strong thorns, so that an 
extra development of glands in the mucous membranes is really not 
superfluous for them. 
CONCLUSIONS. 
The centre of the innervation of the omasus of the Ruminantia 
must be looked for in the most caudal part of the fossa rbomboidea 
or, for a part directly caudally from the Calamus. 
In Camelidae an extension of the dorsal motor vagus nucleus 
occurs in the region of the sensory commissura infima visceralis, 
so that the motor dorsal X nuclei from the two sides are united 
(nucleus motorius commissuralis vagi). In the sheep and the goat only 
slight indications of this connecting nucleus are present. 
The nervus recurrens is given of in Camelidae in conjunetion with 
the ramus pharyngeus n. vagi and the nervus laryngeus superior 
(LesBre); in accordance with this unusually short course the nucleus 
ambiguus, especially in the spinal third part, seems to be less 
developed than in other animals. 
The frontal enlargement of the nucleus ambiguus in these animals 
is particularly strong, and possesses numerous cells of a larger type 
than are usually met with at that place. 
A nervus accessorius spinalis is not present in Camelidae (Lussre); 
since a nucleus accessorii is present in the cervical cord, however, 
the accessorius fibres must run with the cervical nerves. 
An accessorius nucleus is also very clearly seen in the region of 
the dorsal motor vagus nucleus; since the region of this vagus nucleus 
is considered to belong to the bulbus, a really bulbar part of the 
nucleus accessorii has to be accepted, the presence of which has 
been denied by Casa and Kosaka. 
In those sections where in Lama and Camel the nuel. ambiguus 
and the nucleus accessorius are both present, they remain clearly 
separated. The nucleus accessorius is not continuous in these animals 
with the nucl. ambiguus. | 
