1885.] NATURAL SCIENCES OF PHILADELPHIA. 11 



From the Pileated Woodpecker, Hylotomus pileatus, Dr. War- 

 ren obtained ten worms, which appear to pertain to the Spiroptera 

 quadriloba Rudolphi, the female of which was originally described 

 from specimens found in the Green Woodpecker, Picus viridis. 

 The specimens are reported as having been found in the abdomi- 

 nal cavity. Six are females from 9 to 12 mm. long by 0*5 mm. 

 thick, and four males 7 and 8 mm. long by 0"375 mm. thick. 

 Body white, nearly equally attenuated towards both ends; trans- 

 versely wrinkled, and anteriorly minutety, regularly and sharply 

 annulated ; mouth quadrilobate. Tail of female conical subacute ; 

 tail of male bialate, sexcostate, end acute ; spicules two, the 

 longest 1*5 mm. long, the shortest - 5 mm. long. 



The following were ordered to be printed : — 



