Towards the Fossa Magna the folds bend northwards.
Rudimentary cephalic eyes occur in the Mytilidae and in Avicula at the base of the first filament of the inner gill, each consisting of a I pigmented epithelial fossa containing a cuticular lens.
Ischio-rectal fossa Tuberosity of ischium Gluteus maximus The vesiculae seminales are sac-like diverticula, one on each side, from the lower part of the ampullae of the vasa deferentia.
The pterygoids are delicate slender slips of bone attached to the hinder border of the palatines, and supported externally by, and generally welded with, the rough pterygoid plates of the alisphenoid, with no pterygoid fossa between.
Skull elevated and compressed; with the orbit and temporal fossa widely continuous, there being no true post-orbital process from the frontal bone.
Indeed it forms the right arm of the Tiber, by which navigation is carried on at the present day, and is known as the Fossa Trajana.
Structurally Japan is divided into two regions by a depression (the Fossa Magna of Naumann) which stretches across the island of Hondo from Shimoda to Nagano.
South and west of the Fossa Magna the beds are thrown into folds which run approximately parallel to the general direction of the coast, and two zones may be recognizedan outer, consisting of Palaeozoic and Mesozoic beds, and an inner, consisting of Archaean and Palaeozoic rocks, with granitic intrusions.
In the greater part of its course it is a transverse slit, but in traversing the glans it enlarges considerably to form the fossa navicularis, and here, in transverse section, it looks like an inverted T (1), then an inverted Y (A), and finally at its opening '-'uNtAT and Adolf (1806-1871), and his grandsons Johann Adolf and Oskar Philipp.
From Testur on the Mejerda the fossa regia can be followed by these indications for several miles along the Jebel esh-Sheid.