PLATE IV. 



Bones of species of I'appichthys, uatural size. 



Figs. 1-0. — Pappichthya plicatue. Ouc iutlividual. Page 59. 



I-'ig. 1. — Right iiiaxillary bone, outer view; a, inner view. 



Kig. '2. — f Dentary bone. 



Fig. a. — Prootic bouf, lateral virw : a, i)ostcrior bonier view. 



Fig. •!. — Cranial bone. 



Figs. 5, C. — Posterior abdominal veriebral centra; a, from above; 6, from below; c, from the side. 



Figs. 7-20. — Veriebral centra of a single individual of a species of Papjnchthys, probably P. medius. 



Figs. "-IJ. — Abdominal vertelinc, both from before and behind; a, from above; h, from below; c, 

 lateral view. 



Figs. 15-'J0. — Caud.'il v<'rtebrae ; a, from above ; h, from below ; c, lateral view. 



Figs. "Jl-H.!. — PappichllojH comoni. Five individuals. Page CO. 



Figs, yi, 22.— Part of dentary bone, with posterior abdominal vertebra of the typical specimen ; a, from 

 «l>ove; b, from below; c, lateral view. 



Figs. 2;t-29. — Centra, &c., of another individual. 



Fig. 'S.^. — Basioccipital bone, from behind ; o, from the left side; b, from above. 



Figs. 24-'2-~'. — Abdominal vertebne; a, from above; 6, from below. 



Fig. 29. — Caudal vertebra; a, from .above: b, from below. 



Fig. 30. — Abdominal vertebra of another individual, which was regarded as belonging to another spe- 

 cies, which was named Pappichthya symphyaiii ; a, from above ; b, from below. 



Fig. 31. — A superior view of a posterior abdominal vertebra of another individual. 



Figs. 32-3(i. — Centra of another individual of I'appichthys corsoni; all abdominals excepting Fig. 35, 

 wliich is a caiidal ; a, from above ; b, from below ; c, from the side. Page CO. 



