[Illustration: FIG. 3.--Protozoa from the gut of the wood-feeding cockroach _Cryptocercus punctulatus_. A, _Eucomonympha imla_, female above, male below, c. × 375. (From Cleveland [1950c].) B, _Barbulanympha_ sp. (From Cleveland [1953].) C, _Urinympha talea_, c. × 712. (From Cleveland [1951a].) D, _Rhynchonympha tarda_, c. × 450. (From Cleveland [1952].) E, _Trichonympha okolona_ or _T. algoa_, c. × 390. (From Cleveland [1949].) (All drawings reproduced through the courtesy of Dr. L. R. Cleveland.)] =Trichonympha chula= Cleveland et al. _Natural host._--_Cryptocercus punctulatus_, U.S.A., Appalachian and Pacific coast areas (Cleveland et al., 1934). =Trichonympha grandis= Cleveland et al. _Natural host._--_Cryptocercus punctulatus_, U.S.A., Pacific coast areas (Cleveland et al., 1934): Fairly abundant in all specimens from Pacific area. =Trichonympha lata= Cleveland et al. _Natural host._--_Cryptocercus punctulatus_, U.S.A., Appalachian and Pacific coast areas (Cleveland et al., 1934). =Trichonympha okolona= Cleveland et al. (Fig. 3, E) _Natural host._--_Cryptocercus punctulatus_, U.S.A., Appalachian and Pacific coast areas (Cleveland et al., 1934): Found in only a few specimens, never abundant. =Trichonympha parva= Cleveland et al. _Natural host._--_Cryptocercus punctulatus_, U.S.A., Appalachian and Pacific coast areas (Cleveland et al., 1934): This organism is smaller than any known species of _Trichonympha_; it is more resistant to warm weather than the other hypermastigotes. Family EUCOMONYMPHIDAE =Eucomonympha imla= Cleveland et al. _Natural host._--_Cryptocercus punctulatus_, U.S.A., Appalachian and Pacific coast areas (Cleveland et al., 1934): Organism (fig. 3, A) sometimes becomes attached to the intestinal wall; attached individuals were seen in 2 to 3 percent of the cockroaches examined. =Unidentified flagellate= _Natural host._--_Pycnoscelus surinamensis_, Hawaii (Schwabe, 1950): A small flagellate was found in the digestive tract and malpighian tubules. Class SARCODINA Order MYCETOZOA INCERTAE SEDIS =Peltomyces periplanetae= (Léger) _Synonymy._--_Peltomyces blattellae._ Sprague (1940a) synonymizes _Peltomyces periplanetae_, with _Coelosporidium periplanetae_. _Natural hosts._--_Blatta orientalis_, France (Debaisieux, 1927). _Blattella germanica_, France (Léger, 1909; Debaisieux, 1927). The organism inhabits the malpighian tubules of cockroaches. Léger and Debaisieux concluded that their organism was a mycetozoan, but they may have erred in synonymizing _Plistophora periplanetae_ with the organism they studied. Debaisieux found intracellular stages of _Peltomyces periplanetae_ that have not been found in _Plistophora periplanetae_ or _Coelosporidium periplanetae_. Order AMOEBINA Family AMOEBIDAE =Hartmannella blattae= Ivanić _Natural host._--_Blatta orientalis_, Yugoslavia (Ivanić, 1937): Found in the hind gut. Family ENDAMOEBIDAE