POLYMASTIGINA 



303 



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; in wood-roach gut. 



S. ambloaxostylus C. (Fig. 140, e). 65-1 10/x by 18-26/x; in Cryp- 

 tocercus punctulatus. 



Fig. 140. a, Dinenym-pha gracilis, X730 (Original); b, D. fimbriata, 

 X625 (Kirby); c, Pyrsomjmyha vertens, X730 (Original); d, P. granulata, 

 X500 (Powell); e, Saccinobaadus ambloaxostylus, X600 (Cleveland). 



Family 9 Devescovinidae Doflein 



Usually 3 anterior flagella and a trailing stout flagellum; near 

 base of trailing flagellum an elongated cresta (becoming a large 

 internal membrane in some species) (Fig. 141); trailing flagellum 

 lightly adheres to body surface along edge of cresta; axostyle; para- 

 basal body of various forms; single nucleus anterior; without undu- 

 lating membrane; generally xylophagous. 



Genus Devescovina Foa. Elongate body, usually pointed poste- 

 riorly; 3 anterior flagella about the body length; trailing flagellum, 

 slender to band-form, about 1-1.5 times the body length; cresta; 

 parabasal body spiraled around axostyle or nucleus; in termite in- 

 testine. Many species (Kirby, 1941). 



