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thorough investigation than Mr. CoLLınae can possibly have made. 
Take for example his description of the Vth nerve. He classifies it 
as follows :— 
1) Superficial ophthalmic. 
2) Profundus. 
3) Buccal. 
4) Maxillary. 
5) Mandibular. 
Here he has completely overlooked the true roots of 
the Vth (see my fig, V), and the ventral root of 1 (VIT')*), 
and figures the whole of these nerves as having a Single 
ganglion and a single dorsal root. The latter is the climax, and 
with it we arrive at the interesting conclusion that Chimaera has 
no Vth nerve at all! Nos. 1 and 3 are, it is needless to add after 
my description and fig. above, branches of the facial, and Mr. CoL- 
LINGE may well say that “we find an enormous development of the 
branches of the trigeminal nerve, particularly of the ramus buccalis”. 
Mr. COLLINGE is of course perpetuating old errors of STANNIUS, 
GEGENBAUR and others, but what is excusable in Srtannıus in 1849 
is hardly so in Mr. CoLtince in 1896. Mr. CoLLınGE’s anastomosis 
between the buccal and the maxillary is evidently what I have de- 
scribed between the trigeminus and the buccal above. This anasto- 
mosis I omitted, by a lapse of memory, to call attention to in my 
preliminary communication, and wish therefore to emphasize it here. 
Mr. COLLINGE cannot have read his SrTannius, or he would not have 
described both inferior maxillary and mandibular nerves. These 
terms are usually considered to be synonymous, and are used as such 
by Srannius. The latter’s superior maxillary = my maxillary, but 
Mr. CoLLInGe’s superior maxillary = a portion of my buccal. 
The maxillary nerve vf CoLLINGE is the main trunk of the trigeminus. 
It will thus be seen that Mr. CoLLınge has confused the: Vth and 
VII th nerves in the orbit, and has made the former branch from the 
latter — thus disregarding the real origin of the Vth. I may point 
out here that the Vth arises by two roots, and thus agrees with 
MARSHALL and SPENCER’s account. There is a large posterior secon- 
dary root and a smaller anterior tertiary root, but the latter contrary 
to one’s expectation, is not the root of the profundus. 
The facial nerve, according to Mr. CoLLINGE, is represented only 
by the hyomandibular portion of it (H in my fig.). He figures an 
1) This root has been figured by Schwause, Jen. Zeitschr., Bd. XIII, 
13 
