FAUNA OF DEVONIAN FORMATION AT MILWAUKEE 283 



"placoderms" (including Artlirodira) 



Acantholepis fragilis Newb. {=A.pustulosa Newb.). Fragmentary spines). 



Phlyctaenacanthus telleri Eastm. (Fragmentary spines). 



Dinichthys tuberculatus Newb. (Fragments of dermal armor). 



D. pustulosis Eastm. (Crania, dorsal and ventral plates ; also portions of 

 the dentition). 



Large, thin plates belonging to two as yet unknown Dinichthyids, prob- 

 ably Dinichthys or possibly akin to Titanichthys. 



Sphenophorus sp. nov. (Fragments of dermal plates). 



CROSSOPTERYGIANS 



Onychodus sp. (Clavicle and other plates very suggestive of O. sigmoides 

 Newb., but as yet no teeth nor scales, sufficient to prove specific identity). 

 Several varieties of scales and other fragments. 



Charles E. Monroe. 

 Edgar E. Teller. 

 Milwaukee, Wis. 



February 16. 1899. 



