1886.] NATURAL SCIENCES OF PHILADELPHIA. 309 



Female from 4^ to 1| inches long, mostly to 6 inches ; width 

 0-625 mm. Male 2^ to 3^ inches. 



Four females and a male from the crow black bird, Quiscahis 

 purpureus. They are proportionately more robust than the 

 preceding. Female 4 inches long and 0-875 wide. Male 1\ inches 

 long and 0-5 mm. wide. Florida, Dr. B. H. Warren. 



I at first viewed this species as the Filaria obtusa, Rudolphi 

 (Diesing, Syst. Hel., ii, 267). The caudal extremity of the male, 

 with its penal armature, accords with Dujardin's figure of that 

 species (Hclminthes, Pt. iii, fig. i, 2). In F. obtiinsa I can detect 

 no buccal armature such as exists in F. obtufia, according to 

 Dujardin ; and later, Molin (Yersuch einer Monographic der 

 Filarien, Sitzungsb. Wien. Akad. Wis., 1858, 397). 



Filaria cirrura. 



Body c^dindrical, nearly equal, cephalic end conical, rounded 

 truncate, smooth ; mouth a m^inute funnel-like orifice without 

 papillae or interior armature ; caudal end of female slightly 

 curved or nearl}' straight, conical, obtusely rounded, without 

 appendages ; of male closely rolled inward, conical, blunt, 

 without alse or papillae ; penal spiculae strongly curved, with the 

 points projecting from the prominent genital aperture situated 

 above the tail end. 



Length of female 16 mm., breadth 0*5 mm. Length of male 

 10 mm., breadth 0-375 mm. 



Four females and two males from the orbit of the jackdaw, 

 Quiscahis major. Florida. Dr. B. H. Warren. 



Filaria nodulosa. Rudolphi. Diesing, Syst. Hel., ii, 274. 



Body cylindrical, nearly uniform, slightly more narrowed 

 behind ; head conical, obtusely rounded, with a circle of minute 

 tubercles. Caudal extremity of the female straight, conical, 

 obtuse ; of the male slightly curved, obtuse ; genital aperture a 

 little in advance of the tail end ; penal spicules short, curved. 



Female 3 inches long, 1 mm. wide. Male 1^ inches long, 0*5 

 mm. wide. 



One of each sex from beneath the skin of the head and neck 

 of a shrike, Collurio ludovicianus. Florida. Dr. B. H. Warren. 



Filaria stigmatura. 



Body filiform, nearly uniform c^dindrical, but attenuated at the 

 cephalic extremity ; head rounded truncate, smooth ; mouth 



