44 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 88 



Measurements, life, flattened : Length, 3.71 mm. ; breadth, anterior, 

 0.34 nrni., maximum, 0.6 mm. ; breadth of oral sucker, 0.28 mm. ; 

 pharynx, length, 0.24 mm., breadth, 0.14 mm.; diameter of ventral 

 sucker, 0.32 mm. ; ova 0.024 by 0.018 mm. 



The intestine contained orange-colored material in granular masses 

 at some part of their course, in most cases near the j)osterior end of 

 the rami. 



Ova in balsam mounts measure 0.024 by 0.018 mm. to 0.027 by 0.018 

 mm. 



Family ZOOGONIDAE Odhner, 1911 



Subfamily LECITHOSTAPHYLINAE Odhner, 1911 

 Genus LECITHOSTAPHYLUS Odhner, 1911 



LECITHOSTAPHYLUS NITENS (Linton) 

 Plate 21, Figukes 272-274 



Distomum nitevs Linton, Proc. U. S. Nat. Mus., vol. 20, pp. 534, 535, pi. 51, 

 figs. 5, 6 ; pi. 52, fig. 1, 1898 ; Bull. U. S. Fish Comm. for 1899, p. 443, 1901.— 

 Pratt, Amer. Nat., vol. 36, p. 958, 1902. 



Distoma nitens Linton, Looss, Zool. Jahrb., vol. 12, p. 710, 1899. 



No record of this distome has been made since the description of 

 the species was published. An examination of a series of frontal sec- 

 tions (U.S.N.M. No. 8192) makes it desirable to make a few additions 

 to the original description. 



There is a short prepharynx, and the intestinal rami extend back 

 of the testes but do not reach to the posterior end. The left ramus 

 is about 0.9 mm. and the right 0.8 mm. from the posterior end. There 

 appear to be at least 10 vitelline follicles on the left side and 8 on 

 the right. Seminal receptacles small, at posterolateral border of 

 ovary; shell gland at posteroventral border of ovary. The cirrus 

 pouch is on the left side of the median line. ISIeasurements, of nearly 

 frontal sections : Length, 4.5 mm, ; breadth, at level of cirrus pouch, 

 1.18 mm., at level of ovary, 1.08 mm. ; anterior end to ventral sucker, 

 1.26 mm.; diameter of oral sucker, 0.38 mm.; pharynx, length, 0.28 

 mm., breadth, 0.22 mm. ; diam.eter of ventral sucker, 0.57 mm. ; cirrus 

 pouch is on the left side of the median line. Measurements, of nearly 

 to 0.036' by 0.018 mm. ; distance of testes from posterior end, left 2.1 

 mm., right 1.68 mm. 



Looss ^ points out the resemblance of this species to Enodia mega- 

 chondros Looss ; Pratt places it in the subfamily Plagiorchiinae. 



'Zool. Jahrb., Abt. Anat. und Ont., vol. 12, p. 709. pi. 26, fig. 30, 1899. 



