194 PROCEEDINGS OF THE NATIONAL MUSEUM vol.84 



slightly more advanced; right testis closely apposed to ovary when 

 ovary is right, 0.233 mm long by 0.227 mm -wide; left testis closely 

 opposed to ovary when ovary is left, 0,251 mm long by 0.240 mm 

 wide. Vasa efferentia uniting on entering cirrus sac. Cirrus sac 

 fairly large, club-shaped, usually entirely in front of acetabulum, 

 sometimes extending laterad or dorsad to sucker, about one-third 

 longer than diameter of acetabulum, containing a spherical vesicula 

 seminalis, a bulbous pars prostatica with its gland cells, a short 

 ductus, and a weakly developed cirrus. Excretory system of same 

 general pattern observed for B. mesorchium; flame cell pattern of 

 the 2X6X3 type. 



Host. — Amby stoma opacum (Gravenhorst) . 



Habitat. — Small intestine. 



Locality. — Pearl River, La. 



Type sped^rien.—U.S.'^M. Helm. Coll. no. 9027. 



Remarks. — Brachycoelium louisianae shows a closer relationship to 

 B. storeriae and B. dorsale than to any other member of the genus. 

 The larger body, suckers, ovary, testes, and cirrus sac, and the dis- 

 tribution of the vitellaria, definitely distinguish it as a separate and 

 distinct species. 



BRACHYCOELIUM DAVIESI Harwo«d, 1932 

 Plate 9, Figxjbe 4 



Brachycoelium daviesi was described by Harwood (1932) from 

 the intestine of Leiolopisma laterale^ Pseudacns triseriata, Hyla 

 cinerea^ and Amhy stoma microstomuni^ collected at Houston, Tex. 

 I am able to assign to this species eight specimens from the intestine 

 of the ground skink {Leiolopisma lateral e) collected at New Orleans, 

 La., and five specimens from the same host collected at Pearl River, 

 La. The material in the present collection shows : A smaller body ; 

 an armature of spines that extend to one-tliird the distance beyond 

 the testes; more uniform suckers, although these structures show a 

 size ratio of 2 : 1 ; and a smaller ovary and smaller testes. The ex- 

 cretory system is typically that observed for B. mesorchium. 



SPECIES INQUIRENDA 



BRACHYCOELIUM MERiDIONALLS Harwood, 1932 



Plate 9, Figure T) 



This species was described by Harwood (1932) from the intestine 

 of the spring lizard {Triturus meridionalis) collected from the 

 vicinity of Houston, Tex. Through the courtesy of Dr. Maurice C. 

 Hall, formerly chief of the zoological division, U. S. Bureau of 



