40 CALIFORNIA ACADEMY OF SCIENCES 



EXPLANATION OF PLATE IL 



Tlidliitto.savrvs (ilcrniidrar. 

 All fi(iinrK Ihrcr finirtliK luilxral ><rze. 



Fig. Irt. Section a througli craniuiu of tyi)e sjiecinieii, posterior to superior nares. See PI. i, 



figs. 1 and 2, section a. 

 Fig. Ih. Section /) through cranium of type specimen, anterior portion of superior narial region. 



See PI. I, figs. 1 and 2, section h. 

 Fig. If. Section r through craniinn of type specimen, middle rostral region. See PL I, figs. 1 



and 2, section r. 

 Fig. 2a. Right quadrate, inner side. 

 Fig. 2/>. Right quadrate, outer side. 



Fig. 3. Posterior end of premaxillary. T. alcrandrac {'!) 

 Fig. 4. Fragment of cpiadrate and temporal region of type sj)ecimen. 



Legend. 



i1/, maxillary /V, palatine 



Pm, premaxillary L, prevomer 



A^ nasal ' T. tooth 



7'', frontal <^. quadrate 



/'/', jircfrontal Sij. .s<iuamosal 

 A, doiditful elenient anterior to 

 narial oneninsjr 



