540 ALLIS. [Vor. XII. 
in teleosts. A confirmation of this supposition is found in the 
arrangements presented by ganoids other than Amia. 
In Polypterus, van Wijhe (No. 129, p. 260) describes two com- 
missural branches connecting the profundus ganglion (called by 
him the ciliary) with the ophthalmicus superficialis, and one con- 
necting it with the oculomotorius. He also describes a large 
nerve, the r. ophthalmicus profundus, which, arising from the 
profundus ganglion, runs forward under the rectus superior and 
obliquus superior, and joins the ophthalmicus superficialis at the 
front end of the orbit. Pollard (No. 93, p. 394) practically con- 
firms van Wijhe’s observations, for he describes, (1) two commis- 
sural branches to the ophthalmicus superficialis, considered by 
him as a branch of the facialis; (2) the main nerve, which has 
the general course given by van Wijhe, but passes through the 
obliquus superior; and (3) a branch which joins the “motor 
nerves,” these latter nerves being presumably the oculomotorius, 
though he does not so state. The main nerve in Polypterus 
thus corresponds exactly in position with the nerve of the 
same name in elasmobranchs, and with the small nerve which, 
arising from the profundus ganglion in Amia, runs forward 
under the superior rectus and is lost in the general tissues. 
The commissural branches to the ophthalmicus superficialis 
correspond with the portiones ophthalmici profundi in Amia, 
and the commissure to the oculomotorius to the radix longa. 
In Lepidosteus there is a profundus ganglion and a portio 
ophthalmici profundi (No. 112 4 and 4, Fig. 5a) as in Amia, 
but in Lepidosteus the portio profundi and its ganglion lie, 
most unaccountably, if Schneider has made no error, imme- 
diately below and not above the main trunk of the oculomotorius 
(No. 112, p. 18). There is in Lepidosteus no r. ophthalmicus 
profundus, unless that nerve is represented in one of the three 
nerves called by Schneider “ciliary,’’ which have become fused 
with, and have an apparent origin from, the superior and infe- 
rior branches of the oculomotorius. 
In Spatularia, according to van Wijhe (No. 129, p. 249), 
the ramus profundus “issues under the origin of the rectus 
superior,’ and then, running forward above the other recti 
muscles, separates into two parts, one of which joins the 
