RESEARCHES IN HELMINTHOLOGY AND PARASITOLOGY. 1 93 



From the visceral cavity of Phrynosoma regale. Collection of the 

 Army Medical Museum, Washington. Nose, mouth, and throat of 

 Phrynosoma hernandezi ; Sonora, Mexico. Dr. T. H. Streets. 



Hedruris androphora, Nitzsch. Diesing, Syst. Hel., ii, 205. 



Synplcda pcndula, Leidy. Pr. A. N. S., 1851, 240; 1856, 

 52. Diesing, Sitzungsb. Wien. Akad. Wis., xlii, 1861, 647. 



Stomach of Nanemys giittatus. 



Cuadanus roseiis, Leidy. Pr. A. N. S., 1851, 155 ; 1S56, 54. 



Intestine of Manoiiria fjisca, Java. 



Tropidocerca ccrta. 



f Filaria duhia, Leidy. Pr. A. N. S., 1S56, 55. 



Female subglobular, broader than long, divided into zones : tail 

 abruptly projecting and conical. Male of the ordinary nematoid 

 shape, cylindrical, most attenuated in front. Mouth trilabiate. 

 Caudal extremity strongly rolled inwardly, sigmoid at the end, which 

 is conical, recurved from the genital aperture, mucronate and alate ; 

 alae half oval, narrowing to the end of themucro, which is truncate. 

 Female 7 mm. long by 7 and 8 mm. broad. Male 12 to 18 mm. 

 long and 0.375 to 0.5 wide. The specimens of this curious para- 

 site were contained in two spherical cysts in the wall of the stomach 

 of the albatross, Diomcdia exidans. Each cyst contained a corpu- 

 lent female with severally four and five males. Obtained by Dr. 

 W. S. W. Ruscenberger. 



[January, 1887. No. 543. See Bibliography.] 



NOTICE OF SOME PARASITIC WORMS. 



Filaria megacantha. — Bod}' .straight, nearly uniform cylindrical, 

 slightly narrowed posteriorly, obtuse at the ends, milk-white in 

 color ; head rounded ; mouth bounded by a pair of prominent papil- 

 late lips. Female caudal extremity straight, obtusely rounded, 

 smooth, without anal aperture. Male: caudal extremity conical, 

 obtuse, bialate ; alae narrow, united around the end of the tail, to- 

 gether forming a shallow pouch, with a row on each side of six rib- 

 like papillae, of which four are in advance and two behind the gen- 

 ital aperture. A long, curved and partially exserted penal spiculum 

 and a nearly straight short one. 



Eight females, 35 to 60 mm. long ; cephalic extremity a .short 

 distance back, 0.75 wide ; body at middle, 0.625 ; near the tail end 

 the same width. Seven males, 20 to 25 mm. long ; cephalic ex- 

 tremity, 0.375 wide ; body at middle, 0.5 : near tail end, 0.25 wide. 



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