NO. 19 OLIGOCENE EAGLE — ^WETMORE 7 



tuberosity at distal end of third uu'tacarpal strongly raised; fourth 

 metacarpal a thin plate, broad proxinially and greatly narrowed 

 distally ; facet for third digit projecting distally beyond level of second ; 

 fornix metacarpi broad and strong. 



Second phalanx of first digit (fig. 13) with a broad, strong upper 

 margin, from which a bladelike process projects downward ; meta- 

 carpal facet broad ; digital facet roughly triangular in outline. 



Pelvis with anterior portion of synsacrum missing, somewhat frag- 

 mentary in other portions : strong and robust, similar in detail, as far 

 as preserved, to buteonine species. 



Femur (fig. 14) represented by proximal half of right side (nearly 

 entire) and much of left (badly crushed, so that most of characters are 

 lost) ; relatively strong and heavy, difl:'ering from the buteonine type in 

 relative shortness of the trochanteric ridge, which is considerably 

 restricted ; head of usual form, with large impression for attachment 

 of the round ligament : neck relatively heavy ; trochanter broad and 

 strong ; a single, large pneumatic fossa, oval in form ; anterior muscu- 

 lar line strongly marked ; shaft strong, elliptical in cross-section. 



Metatarsus (figs. 15-16) represented by three fourths of the bone 

 from the left side with the head missing, strong and well developed ; 

 outer trochlea relatively heavy ( posterior plate missing and rest some- 

 what cracked and broken) ; middle trochlea strong with deep exca- 

 vations on either side and a well-marked groove around articular 

 surface ; inner trochlea well developed, with inner face considerably 

 excavated, and outer produced in a thin, bladelike process, the outer 

 l)oint not projecting as far as the body of the trochlea, being more 

 restricted than in buteonine hawks ; lower end of shaft flattened, with 

 a heavily marked articular facet for the hallux ; inferior foramen oval, 

 with a shallow groove leading into it on anterior face ; posterior face 

 of shaft with slightly projecting margins, so that there is the appear- 

 ance of a broad, shallow groove; outer margin flattened and nearly 

 plane, expanded in center and from there sloping gradually toward 

 either extremity ; inner slope on anterior face also flattened, but more 

 irregular ; tibialis anticus tubercle elevated, strongly developed. 



Of the toes there are present one right first metatarsal, the phalanges 

 of both first toes (fig. 17), the basal phalanx of the right third toe, 

 a third phalanx from a third toe. and part of an ungual phalanx. Hal- 

 lux remarkably long, being decidedly longer than in Buteo melano- 

 leiicus (formerly Ceranoactus), in which the metatarsus is larger 

 than in Palacof'laiicus. The foot, from the few elements present, 

 appears rather slender. 



