A 



PLATE XXXI. 



Figure 1. SEBASTAVUS VERTEBRALIS Jordan & Gilbert; type in (El Moclena). 

 Figure 2. XYRINIUS HOUSHI Jordan & Gilbert; type xxv (Los Angeles). 

 Figure 3. ROGENIO VANCLEVEI Jordan & Gilbert; xxni (Los Angeles). 

 Figure 4. LEPIDOCOTTUS BREVIS (Agassiz) (Eningen. 

 Figure 5. RHOMARCHUS ENSIGER Jordan & Gilbert; type XLIX (El Modena). 



