TREMATODES FROM FISHES — LINTON 63 



One (U.S.N.M. No. 8216), collected September 11, 1907, from king- 

 fish. Measurements, life : Length, 1.28 mm., breadth, 0.6 mm, ; breadth 

 of oral sucker, 0.12 mm., of pharynx, 0.07 mm., of ventral sucker, 

 0.28 mm. ; ova, 0.061 by 0.034 mm. The specimen, in balsam, is much 

 flattened, slightly broader at the level of the posterior edge of the 

 ventral sucker than toward the posterior end; esophagus a little 

 longer than pharynx. 



One, collected September 23, 1913, from kingfish ; 8 fishes examined. 

 Length in balsam, 1.12 imn., breadth, 0.53 mm. 



Twenty-four small distomes, collected September 10, 1928, from 

 kingfish; 34 young fishes, 81 to 137 mm. in length, examined; same 

 species found in young Cynoscion regalh and lizardfish {Synodus 

 foetens)^ seined at the same locality on the same date. Dimensions 

 of larger specimens in close agreement with those given above. Di- 

 mensions of the smaller distomes in balsam: Length, 0.67 mm.; 

 breadth, 0.25 mm.; breadth of oral sucker, 0.08 mm., of pharynx, 

 0.045 mm., of ventral sucker, 0.13 mm. ; ova 0.06 by 0.03 mm. 



One (U.S.N.M. No. 8217), collected May 31, 1907, from white perch. 

 Dimensions, balsam : Length, 0.70 mm., breadth, 0.38 mm. ; diameter 

 of oral sucker, 0.15 mm., of pharynx, 0.08 mm., of ventral sucker, 

 0.24 mm.; ova, 0.075 by 0.036 mm. Found adhering to a specimen 

 of Ste'phanostomuin tenue. Vitellaria dense, extending in front of 

 ventral sucker; testes diagonal; ovary lobed, and adjacent to testis, to 

 right of median line ; only two ova in uterus. 



One, collected September 11, 1928, from lizardfish; 15 fishes exam- 

 ined; same locality and date as specimens of species from Cynoscion 

 regalis and Menticirrhus saxatili^. 



LEBOURIA species 

 Plate 3, Figuke 23 



A distome, near Lebouria tnmcata^ is here recorded. 



Body widest at ventral sucker, tapering rapidly to anterior, and 

 more gradually to posterior end. Genital pore to left of median line, 

 at level of posterior end of pharynx; prepharynx short, esophagus 

 about as long as pharynx ; seminal vesicle extends a little way beyond 

 the posterior edge of the ventral sucker on the left side; intestines 

 concealed by the vitellaria; testes diagonal, close together, at about 

 middle of postacetabular space ; ovary lobed, at right anterior border 

 of first testis; uterus between ovary and ventral sucker; vitellaria 

 diffuse, from posterior end along margins nearly to pharynx. 



Measurements in balsam: Length, 1.12 mm.; breadth, 0.36 mm.; 

 oral sucker, length, 0.10 mm., breadth, 0.08 mm.; pharynx, length, 

 0.07 mm., breadth, 0.06 mm.; ventral sucker, length, 0.18 mm., 

 breadth, 0.25 mm.; ova, 0.075 by 0.033 mm. 



