214 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. r,o. 



Fig. 277.— rnYSALOPTEEA MURIS- 



BR.4 ziLiENSis. Lip, lateral view. 

 Enlarged. After von Dras- 

 CHE, 1883. 



a large fiat papilla (fig., 277). The lips bear a small obtuse tooth 

 externally and some leaflike inner teeth. The body is annulated with 

 prominent transverse striations. 



Male 24 to ?>0 mm. long. There are one unpaired preanal papilla 



and one pair of preanal papillae, and one 

 unpaired postanal papilla and three pairs 

 of postanal papillae (fig. 278). The un- 

 paired preanal papilla is situated on the 

 anterior edge of the cloacal aperture, and 

 the unpaired postanal papilla is situated 

 between the first and second pairs of post- 

 anal papillae. 



Female 34 to 45 mm. long. Caudal extremity straight and very 

 obtuse. Anus close to tip of tail. 

 Host. — ^'■Mus hi'aziUensis.-'' 

 Location. — Stomach and small in- 

 testine. 



L ocality . — Bra z il . 

 This species was restudied by von 

 Drasche (1882). 



Diesing uses this name in the form 

 Physaloptera muris hrazilieTisis. It 

 is apparently binomial in intent and 

 has been retained here with the addi- 

 tion of the hyphen to conform to 

 present usage. 



PHYSALOPTERA ABBREVIATA Rudolphi, 

 1819. 



Synonym. — Physaloptera ahhreyi- 

 ata Rudolphi of Parona, 1909. 



Specif c diagnosis. — Physaloptera 

 (p. 212) : Body broad and compressed. 

 Cuticle thick and strongly undulant. 

 Two thorn-shaped cervical papillae, 

 one in the dorsal and one in the ventral line. Mouth with two large 

 lips, each bearing a large wedge-shaped tooth and on the inner face 

 a number of small teeth (fig. 279). Each lip bears three papillae. 

 The esophagus is one-twelfth as long as the entire body. 



Male 9 mm. long and 600 ju, thick. The bursa has a scalloped edge 

 (fig. 280). The ventral surface of the body in the bursal region bears 

 numerous conical cuticular points in longitudinal rows. There are 

 one pair of sessile preanal papillae and one unpaired preanal papilla, 

 and five pairs of postanal sessile papiHae. The three preanal papillae 

 and the first two pairs of postanal papillae are situated close to the 



Fig. 278.— Physaloptera muris-brazili- 

 ensi.s. pcsterior extremity of male, 

 ventral view. enlarged. after 

 VON Drasche, 1SS3. 



