POLYMASTIGINA 379 



some, anterior, about 20-23/x in diameter; axostyle consists of a 

 staining part and a non-staining part; in the intestine of Neotermes 

 dalbergiae and N. tectonae (Cleveland, 1935). 



Genus Proboscidiella Kofoid and Swezy (Microrhopalodina Grassi 

 and Foa; Kirbyella Zeliff). Attached and motile forms similar to Oxy- 

 monas; but multinucleate; 4 flagella from each karyomastigont (p. 

 315); rostellum with filaments which extend posteriorly as axo- 

 styles; in termite gut (Kofoid and Swezy, 1926; Zeliff, 1930a). 



P. kofoidi Kirby (Fig. 159, d). Average size 66m by 46m; rostellum 

 as long as, or longer than, the body; karyomastigonts 2-19 or more 

 (average 8) ; each mastigont with 2 blepharoplasts from which extend 

 4 flagella; in Cryptolermes dudleyi (Kirby, 1928). 



Family 8 Dinenymphidae Grassi and Foa 



Genus Dinenympha Leidy. Medium large; spindle form; 4-8 

 flagellar cords adhering to body which are spirally twisted about one 

 turn; the flagella free at the posterior end; axostyle varies from cord 

 to band; pyriform nucleus, anterior, with a large endosome; in ter- 

 mite gut. Species (Koidzumi, 1921). 



D. gracilis L. (Fig. 160, a). 24-50/1 by 6-1 2m ; body flattened and 

 twisted; ends attenuated; with adhering protophytes; in Reticuli- 

 termes flavipes. 



D. fimbriata Kirby (Fig. 140, b). 52-64m by 8-18/x; 4-8 flagellar 

 cords; with adherent protophytes; axostyle varies in width; in 

 Reticuliterm.es hesperus (Kirby, 1924). 



Genus Pyrsonympha Leidy. Large; club-shaped, the posterior end 

 is rounded; body surface with 4-8 flagellar cords which are arranged 

 lengthwise or slightly spirally; flagella extend freely posteriorly; 

 blepharoplast at the anterior tip, often with a short process for at- 

 tachment; axostyle a narrow band, may be divided into parts; large 

 pyriform nucleus anterior; in termite gut. Species (Koidzumi, 1921) ; 

 nuclear division (Cleveland, 1938). 



P. vertens L. (Fig. 160, c). About 100-150m long; 4-8 flagellar 

 cords; in Reticulitermes flavipes. Cytology (Duboscq and Grasse, 

 1925). 



P. granulata Powell (Fig. 160, d). 40-120m by 5-35m; 4-8 flagellar 

 cords; in Reticulitermes hesperus (Powell, 1928). 



Genus Saccinobaculus Cleveland. Elongate to spherical; 4, 8, or 

 12 flagella adhere to the body, and project out freely; axostyle is an 

 extremely large paddle-like body and undulates, serving as cell- 

 organ of locomotion; posterior end of axostyle enclosed in a sheath; 

 in woodroach gut. 



