No. 2322. TREMATODE FAMILY HETEROPHYIDAE— RANSOM. 



545 



skiold, 1899a) 1.5 to 1.7 mm. Width, 0.2 to 0.9 mm., usually 

 ( Jagerskiold) about 0.4 mm. Cutaneous scales about 1 [x wide by 2 

 to 4 [X long. Oral sucker, 66 to 110 [jl in diameter (about 80 [i. accord- 



.^. „ 



Figs. 11-13. 11.— Crtptocotyleconcava. Ventral view, x 71. After Nicoll, 1909. 12.— Cetpto- 



COTTLE LINGUA. VENTRAL VIEW. X 75. AftEE JaGERSKIOLD, 1899. 13.— CEYPTOCOTTLE LINGUA, 



Sagittal section through region of genital pore, x 214. Aftee JaqeeskiOld, 1899. [Fob 

 explanation of letteeing see footnote, p. 532.] 



ing- to Jagerskiold, 75 to 85 [x according to Nicoll, 1907/, 70 to 90 [x 

 according to Linton, 1915, 66 to 104 [x according to Wigdor, 1918). 

 Prepharynx shorter in length than the pharynx. Pharynx, 80 to 

 144382— 20— Proc.N.M.vol.57 35 



