46 
first implanted in the vertebra next in front of that from which they rise, and then into 
the vertebra next but one in front (m*) : the most anterior of these tendons of insertions, 
to which can be traced any of the fibres of the main body of the Jongissimus dorsi (re- 
flected back in Pl. XII. fig. 1, m) is that which is implanted into the thirteenth cervical 
vertebra (m**) ; it is this fasciculus which is joined by the first or most posterior of the 
fasciculi obliqui of the longus colli posticus (0 1) which is detached and reflected upwards 
in fig, 1. Pl. XII, 
Obliquus colli: (Pl. XI. XII. m 1—9).—A series of oblique carneous fasciculi, evidently 
a continuation of, or part of the same system with those in which the longissimus dorsi 
terminates anteriorly, is continued between the upper transverse process of one cervical 
vertebra to the posterior oblique processes of the next vertebra but one in advance, as 
far forward as the fourth cervical vertebra. This series of muscles seems to represent 
the transversalis collit, which is the anterior continuation of the Jongissimus dorsi in 
Mammalia, but it differs in being inserted into the oblique, instead of the transverse 
processes. In the direction of their fibres these fasciculi resemble the semispinals colli, 
but they are inserted into the oblique processes instead of the spines of the vertebra. 
There are no other muscles with which they can be compared in the Mammalia than 
these two, with neither of which, however, do they precisely correspond; they seem 
clearly to represent the second series of oblique muscular fasciculi in the trunk of Fishes, 
but to avoid the expression of an incomplete or false analogy, I shall term them collec- 
tively the fasciculi obliqui. 
The fascicult obliqui which rise from the first two dorsal and five lower cervical ver- 
tebre are joined near their tendinous terminations by corresponding oblique fasciculi 
(o 1—8) of the longus colli posticus, and the strong round tendons continued from the 
points of convergence of these fascicles are inserted successively into the posterior ob- 
lique processes of the twelfth to the sixth cervical vertebra inclusive ; the two fasciculi 
next in succession receive no accessory fibres from the longus colli posticus ; the anterior 
one (m 9) derives an extensive origin from the upper transverse processes of the eighth, 
seventh, and sixth cervical vertebree. It must be observed, however, that the whole of 
each fasciculus is not expended in the strong round tendinous insertion above described ; 
the portion (m*, fig. 1. Pl. XII.), which arises from the anterior ridge of the transverse 
process, passes more directly inwards than the rest, and is attached to the tendon which 
terminates the fasciculus immediately behind ; at the middle of the neck these accessory 
fibres approach to the character of distinct origins. The tendons of insertion, moreover, 
severally receive accessory fleshy fibres (nn, fig. 1. Pl. XII.) from the base of the oblique 
+ It is the ‘ grand transversaire’ of Cuvier, foc. cit. p. 252; but he describes it as passing from the anterior 
articular process of one vertebra to the posterior articular process of the next in front. Meckel, who calls this 
muscle * intertransversalis cervicis,’ follows Cuvier in the description of its attachments, and adds, that it is a 
continuation of the outer division of the ‘extensor communts dorsi’ (sacro-lumbalis). In the Apteryx it is plainly 
« continuation of the inner division or longissimus dorsi. See Vergleich, Anatomie, Th, 3, p. 294. 
