WELLBURN : ON THE GENUS MEGALICHTHYS, AGASSIZ. 
69 
A. Anus. 
MPt. S. Metapterygial or preaxial scales. 
MPt. Metapterygium. 
P.Pt. S. Propterygial or post-axial scales. 
PPt. Propterygium. 
C. B.P. Caudal body prolongation. 
L.F. Lobe of fin. 
R. Radials. 
D. R. Dermal rays. 
Pel. Pelvis. 
Plate XIII. 
Restored figure of Megalichthys Ag, From specimens in the 
Leeds, Science and Art, Edinburgh, Owens College, and 
Brighouse Museums, the author's, and other collections. 
Plate XIV. 
Specimen of Megalichthys Hihherti Agassiz. Ventral surface 
shown, one-sixth natural size. Leeds Museum (after 
Prof. Miall, F.R.S., slightly altered). 
Plate XV. 
A. Megalichthys Hihherti Agassiz (type). Skull seen from the 
upper surface. Leeds Museum. 
B. M. Hihherti Ag. Diagrammatic representation of the bones 
of the fronto-ethmoidal and orbital regions, and also 
premaxillse and maxillae. 
C. M. (maxillaris) Hihherti Ag. Skull, lateral view. Leeds 
Museum. 
Plate X7L 
M. Hihherti Agassiz. Caudal region, the body prolongation into 
the caudal fins being beautifully shown. Second dorsal 
and basal portion of anal fins also seen. Brighouse 
Museum. 
