Bull. U. S. F. C. 1899. (To face page 492 ) 



Plate XXVIII. 



'^ 313 



t kmmmm 



"9 «/■ :^^^^p 





310. DUIouuaii turi(itliiiii kiicloiplii, innn , I/; «/•((.! ,ii.i.i,'.i. i.itrnil vn-v. ; .111. li-.-lus. oviir \ , iiml vitolliiriii of Mniiii:. Ij'llir^ .ms in flp. 311. 



from lile. :•: ;i. x 'iin. 



311. Distninitm sp. fn>ui }frnlirhTiiii .wjvi ////.«.■ volltrnl viow; life. ; NoTi-:. — TIu; vitt'll:iriii. \\iii<-h arc <li'(?ply Inhcrl in iln- ynuii.i;. 



«. Vontral suckor: r-, cirrii.'^: c;). oirnis ptnich: //. genital aper- | appt'sir to lose this cliurartLTiii tho iirlnll," 



tnre: /. intt'stino; <>, ovary: t. testes; it, ntenis; vf/, vitelline 31.i. J>htninuiii ffithtf^nin sp. nov. fnun I'hninliu.^ Iriiu-diillius; lateral 



glands. ■■■, ■!(). view. ;-: IS. ;V/, The Inn.i,^ eylindrieal pliaryn.x. other let- 



31 ".i. Dislomuiii ajqti nilirtd((fii/u Rudolplii. from ])rcapti:nf>i viat-areitiis: ] tei-s as iti lifjs. 311, 312. 



ailiilt, ventral view. /■.c. Kxeretr)rv vessel; », uterus. Other :;ii"i. .Midille of lioclv of sjiine. x (i.'i. y»/-, F^mstale glan'l. oilier I. i- 



lettersasin lig. 311. ; Jll. " i ters as in ligs. 311, 312. 



31:!. Young, \entral view. Letters as in tigs. 311, 312. .< 'IG. ' 317. Transverse seetion of bodv throuiih ovarv. x tJ.'>. Letters as in 



fi.gs. 311.312. 



1 318. Kye of 2(i«(o(/fi m((7/V, distomes eneysted in eornoa. x 2. 



