U. S. NATIONAL MUSEUM 



PROCEEDINGS. VOL. 83 PLATE 6 



PARASITES OF GALVESTON BAY FISHES. 



1. Phipidocotyle tramversale. (a. s., Anterior sucker; c. g., cystogenous glands; g. a., genital atrium- 

 !, intestinal sac; ov., ovary; ph., pharynx; L, testis; u., developing uterus; v., vitellaria; s. v . .eminal 

 vesicle; c. p., cirrus pouch.) 

 2, 3. Lecithochirium microsiomum: 2, Ventral view; 3, median longitudinal section through anteriorJend 

 (e, esophagus; h. d., hermaphroditic duct; 7n., metraterm; p. c, prostate cells; ph., pharynx- p p 

 prostatic part of vas deferens; sph., sphincter of metraterm; s. v., seminal vesicle; v. d., ventral 

 depression; v. s., ventral sinus). 

 4. Unidentified distome from Menidia menidia. 



