JOURNAL OF PROCEEDINGS. 337 
whieh, in oe with Oken’s law—not sufficiently appreciated by his 
ilastrious foll owers, Agassiz and Go uld—is tripartite, typically consist- 
ing, like all geet) Julcra, of extremities and jaws, a blade Bh arrest 
blade, ileum) and clavicular prop (c aavicle, os ischii), and 
ally deficient styloid hook iieapote: not acro wr: on). Ti the t ennend 
bones, these are represented by, Ist, Le e, or squama and 
tuberculum articulare,—in Esocine s so extensively dev whieg 
hide view, and entirely overlap as a shiel 
lying frontal and parietal bones ; 2d, the mastoid | props and, ~~ the ential 
—between the condyle-plates and the parietal o ith or 
base (as an os pubis does a fora saieeny " BuGosing 
the icle, which is often obturated with nous 
membrane at its depth,—being, in higher animates, the osseo au- 
ditorius , with ym m for its obturatory me’ i 
third or uncinate element invariabl fue similar part to that of the os 
pubis to circumscribe an obturatory passage. Hones iii the “shoulders 
or fulerum of the fore-fins of Bubulichthys (buffalo-fish), and similar ones, 
where the analogy of pelvic tangible, with an arcus pubis, fo- 
ramen riot ken, tes, its s uncinate inate element is chiefly active in producing 
: eness, and thus affording the starting-point o r clue for the 
ting in pre in the te bone’s giendid cay 
peer ah _— a red to it,) and known 
oe grant. ofa bind-shouer, 
