348 BULLETIN 140, UNITED STATES NATIONAL MUSEUM 



unpaired trompe 600/* long. Eggs 47/* long by 21/* wide, thick- 

 shelled, embryonated; they are cylindrical and rounded at the ends. 



Life history.— Probably similar in a general way to that of T. 

 fissispina (p. 343). 



Distribution. — Africa (Algeria) and Europe (Italy (Padua) ). 



TETRAMERES MICROPENIS Travassos, 1915b 



Hosts. — Primary: Nicticorox violacens and Cancroma cochlearia; 

 secondary: Unknown; probably similar in a general way to that 

 of T. fissispina (p. 343). 



Location. — Proventriculus. Males and young females free in the 

 cavity of the proventriculus; adult females in the glands of 

 Lieberkuehn. 



Morphology. — Tetrameres (p. 334). 



Male 4 to 5 mm. long by 120/* wide. Cuticle transversely striated; 

 numerous spines along lateral lines and, in addition, 2 pairs of 

 ventral spines below the anus. Buccal capsule funnel-shaped, 28/* 

 long; pharynx 355/* long; esophagus more or less cylindrical, 1.3 



Fig. 412. — Tetrameres micropenis, a, Tail op male ; b, ovejector, showing 



STRIATED APPEARANCE OP MUSCULATURE. AFTER TRAVASSOS, 1919 



mm. long by 49/* wide. Cervical papillae about 163/* from anterior 

 extremity of body; nerve ring 191 to 198/* from anterior extremity. 

 Posterior extremity slender (fig. 412 a). Anus 184/* from the end of 

 body. Spicules slender, 355/* and 56/* long, respectively. 



Female 3 to 4 mm. long by 1.5 to 2 mm. wide. Body globular, 

 red, strongly striated transversely and with 4 deep longitudinal 

 furrows corresponding to the lateral and median lines. Buccal 

 capsule 21/* long by 14/* wide, oval in form; pharynx 250/* long, 

 esophagus 1.5 mm. long, cylindrical. Vulva slightly anterior to 

 anus. Ovejector (fig. 4125) simple, about 710/* long, claviform and 

 longitudinally striated. Eggs 59 to 63/* long by 39/* wide. 



Life history. — Probably similar in a general way to that of T. 

 fissispina (p. 343). 



Distribution. — South America (Brazil). 



TETRAMERES NOUVELI (Seurat, 1914) Travassos, 1914d 



Synonyms. — Tropidocerca nouveli Seurat, 1914£. 



Hosts. — Primary : Himantopus himantopus; secondary : Un- 

 known; probably similar in a general way to that of T. fissispina 

 (p. 343) ; 



Location. — Proventriculus. 



Morphology. — Tetrameres (p. 334). 



