180 PROCEEDINGS OF THE NATIONAL MUSEUM vol. loi 



from one-fourth to one-half the distance from vitellaria to posterior 

 end of body. Excretory pore terminal. Excretory vesicle tubular, 

 voluminous, and somewhat sinuous, extending anteriorly to level of 

 posterior vitelline follicles. Genital pore median, about two-thirds 

 of distance from oral sucker to acetabulum, and well in front of 

 intestinal bifurcation. Testes large, 0.10 to 0.36 mm. in greatest 

 diameter, round to oval, the long axis varying with state of contrac- 

 tion, located one directly behind the other and occupying almost 

 entire width of body. Anterior testis separated from acetabulum by 

 6 to 9 loops of uterus in relaxed specimens ; posterior testis separated 

 from anterior testis by a single uterine loop. Cirrus sac large, bulb- 

 shaped, 0.14 to 0.19 mm. long by 0.07 to 0,09 mm. wide, containing a 

 convoluted seminal vesicle, ejaculatory duct and muscular eversible 

 cirrus, situated so that the posterior one-half to three-fourths of its 

 length lies dorsally to acetabulum. Ovary transversely oval, 0.07 

 to 0.19 mm. long by 0.15 to 0.25 mm. wide, situated immediately be- 

 hind posterior testis and separated from it by a single uterine loop. 

 Seminal receptacle globular, 0.05 to 0,08 mm. in diameter, immedi- 

 ately posterior to ovary. Mehlis' gland large, situated posterolaterally 

 to seminal receptacle. Laurer's canal not observed. Each vitellaria 

 composed of 8 to 12 large ovoid follicles, located immediately pos- 

 terior to Mehlis' gland and beginning at about equator of body. 

 Uteru? convoluted, filling greater part of body posterior to vitel- 

 laria, then passing ventral or to either side of ovary, dorsal or to 

 either side of posterior testis, between testes or dorsal to anterior 

 testis, to form 6 to 9 lateral loops before passing to genital pore. 

 Mature ova light to dark brown, SOyu, to 41/* long by 21/it to 27/* wide 

 (38/x to 45/t by 28/x to 33/x before preservation) . 



Host. — Cyanocitta cristata (Linnaeus). 



Habitat. — ^Liver. 



Localities. — Texas : Houston ; Virginia : Mountain Lake. 



Material. — A specimen has been deposited in United State National 

 Museum, Helm. Coll. No. 36795. 



Reviarhs. — BrachylecithuTn stunkardi is described here from 16 

 young specimens obtained from the liver of a blue jay, Cyanocitta 

 cristata^ collected at Houston, Tex., and 9 specimens just reaching 

 sexual maturity from the same host obtained at Mountain Lake, Va. 

 Since this trematode was found in only two (7,7 percent) of 26 blue 

 jays examined from various localities, it apparently is not very com- 

 mon in this host. 



The material in the present collection, although slightly smaller 

 and possibly younger, agrees very closely with that described by 

 Pande (1939) in (1) shape of the body; (2) size, shape, and relative 

 position of the suckers; (3) size, shape, and relative position of geni- 



