a. F. appendiculata Schneider, I866. From intestinal muscles of Triturus vulgaris-Europe. (This is apparently a nomen nudem as Schneider figures, but does not describe any form under this name.) b. F. bufonis M. C. V. Molin, I858 (=F. eupemphigis-marmorati Molin, 1858). A larval form from abdominal cavity of Eupemphix marmoratus-Brazil. (undescribed) c. F. cingula v. Linst., I902. Females only, from skin of Cryptobranchus alleganiensis-U. S. A., and Megalobatrachus japonicus -Japan. d. F. cochleata Railliet, I9I6 (=F. spiralis Oerley, I882-renamed) From stomach cysts of Heleioporus albopunctatus-Australia (undescribed) e. F. columbi R. Blanchard, I905. Larval forms from blood of "Toad"-Columbia, S. America. f. F. jubae Seurat, I9I6 (=F. rubella Rud., I819 ex. p. (vide Seurat. 917); = Spiroptera bufonis Stoss., I900). From abdominal cysts in Bufo bufo, Rana esculenta and R. temporaria-Europe. g. F. parva Polonio, I859. From throat muscle cysts in Bufo viridis -Italy. (undescribed) h. F. rubella Rud., I819 (=F. ranae-esculentae Val., 1841; = Trichina ranae-esculentae Chaussat, I850). From cysts in Rana esculenta and R. temporaria-Europe. i. F. unguiculata v. Linst., I9o6. From Bufo viridis-Europe (Corfu). (undescribed)