90 
EXPLANATION OF THE ANATOMICAL PLATES. 
structure of the parts in each species, which is more distinctly seen by their being all upon one plane, and shown 
exactly in the same point of view. 
Figure 7, represents a side view of the upper jaw of the Katuka Rekula Poda ; the situation of the jaw is 
reversed, as the parts could not be so distinctly seen in any other way. The fang is erected, and its socket, as 
well as the articulation with the skull, are distinctly seen. The portion of the jaw bone which connects 
the socket of the poisoning fang to the jaw itself, is articulated by a joint to the socket of the fang ; and when 
the extreme point of the jaw is moved outwards, along with the condyle of the lower jaw, in the act of opening 
the mouth, the upper jaw, from the joint in its anterior part, readily bends, and the bone which connects the 
jaw to the socket being pressed forwards, pushes the socket upwards ; by which means the fang is erected. 
Figure 8, represents the same parts, to show their appearance when the fang is in its recumbent state. 
Figure 9, is a view of the poisoning fang in its socket detached from the skull, to show the orifice at its base, 
which receives the poison, and that at the point, by which it is instilled into the wounded animal. 
Figure 10, represents the side view of the upper jaw of the Cobra de Capello, in which this difference is re¬ 
markable, that the lateral process, instead of being immediately articulated with the socket of the fang, as in the 
Katuka Rekula Poda, is articulated with a process from the socket of nearly the same length. 
Figure 11, represents a side view of the upper jaw of the Bungarum Pamah. In this snake the process from 
the socket of the poisoning fang is still longer than in the Cobra de Capello; and has this very remarkable pecu¬ 
liarity, that there are three holders, or common teeth, inserted into it, which give the appearance of an imper¬ 
fect marginal row, not met with in any other of the poisonous snakes known. 
Figure 12. A view of the upper surface of the upper jaw of the Bungarum Pamah ; to show the appearance 
of the joint in the jaw bone, and the joint between the process from the socket of the poisoning fang, and 
the lateral bone. 
Explanation of Plate XLVI. 
This Plate contains seven figures, representing the different appearances of the poison gland in the Cobra de 
Capello, and Katuka Rekula Poda. 
The poison gland in the two Boa, viz. the Gedi Paragoodoo, No. I.; and the Bungarum Pamah, No. III.; 
bears an exact resemblance to that of the Cobra de Capello ; but the gland in the Bodroo Pam resembles that 
of the Katuka Rekula Poda. 
The four first figures show different views of the poison gland of the Cobra de Capello. 
Figure 1, is a side view of the head, from which the common integuments are alone removed ; the poison 
gland, which is situated between the eye and angle of the lower jaw, is seen through a semitransparent, mem¬ 
branous, fascia. This fascia is connected with the muscles at the angle of the lower jaw, and is attached to the 
bones of the head, at the anterior part of the gland. 
The poison duct passes from the anterior part of the gland immediately below the orbit, till it comes opposite 
to the root of the fang, and there enters the inside of the mouth; it is covered by a muscle, the fibres of 
which are principally transverse. 
I he upper part of the poison gland is covered by a large, strong, semilunar, muscle, adapted to the shape 
of that pait of the gland , which muscle arises from the bones of the skull, and is inserted into the covering of 
the gland, at its lowest posterior part. 
By these different muscles, the gland is compressed as well as the duct, so as to expel the poison, with a cer¬ 
tain degree of velocity. 
Figure 2, represents another view, in which the fascia is removed, and the gland, with its duct, as well as the 
muscle surrounding its upper part, are more distinctly seen. 
Figuie 3. A view of the under surface of the gland, and of the poisoning fangs, with the membrane in 
which they are inclosed. To show these parts, the head is necessarily reversed. 
