TREMATODES FROM PISHES — LINTON 129 



From bluefish: Two (U. S. K M. No. 8347), collected July 8, 1911. 

 Measurements in balsam: Length, appendix retracted, 1.47 mm., 

 breadth, 0.27 mm. ; diameter oral sucker, 0.20 mm., pharynx, 0.09 mm., 

 ventral sucker, 0.21 mm. ; ova, 0.024 by 0.012 mm. 



From remora : One, collected July 21, 1911. Measurements in bal- 

 sam: Length, appendix retracted, 1.82 mm.; breadth, 0.49 mm.; 

 diameter oral sucker, 0.20 mm., pharynx, 0.09 mm,, ventral sucker, 

 0.21 mm. ; ova crowded and collapsed, about 0.024 by 0.012 mm. This 

 specimen was not noted at the time of collecting, but appears on a 

 slide containing specimens of Sterrhurus monticellii. 



From common mackerel: One (U.S.N.M. No. 8348), collected June 

 6, 1908. Measurements in balsam: Length, appendix retracted, 0.9 

 mm.; breadth, 0.28 mm.; diameter oral sucker, 0.10 mm., ventral 

 sucker, 0.10 mm. ; ova, collapsed, about 0.024 by 0.012 mm. 



From codling {Vrophycis ckiiss) : Few, collected August 19, 1910. 

 Measurements in balsam: Length, appendix retracted, 2.17 mm.; 

 breadth, 0.38 mm. ; diameter oral sucker, 0.18 mm., pharynx, 0.08 mm., 

 ventral sucker, 0.18 mm. ; ova, 0.024 by 0.012 mm. 



From codling {Urophycis tenuis) : One (U.S.N.M. No. 8349), col- 

 lected November 3, 1913. Measurements in balsam : Length, appendix 

 retracted, 1.54 mm.; breadth, 0.46 mm.; diameter oral sucker, 0.18 

 mm., pharynx, 0.07 mm., ventral sucker, 0.21 mm. ; ova collapsed and 

 crowded, about 0.024 by 0.012 mm. 



Subfamily Sterrhurinae Loess, 1907 

 Genus STERRHURUS Looss, 1907 



STERRHURUS MONTICELLII (Linton) 

 PLATK 10, FlGtlKES 101-107 



Distomum monticellii Linton, Proc. U. S. Nat. Mus., vol. 20, pp. 518-520, pi. 



44, figs, a-8, 1898 ; Bull. U. S. Fish Comm. for 18S9, pp. 451, 473, 482, 1901 ; 



Bull. U. S. Bur. Fisheries, vol, 24, p. 334, etc., figs. 154-155, 1905. 

 Hemiurus monticellU (Linton), Looss, Zool. Jahrb., vol. 12, p. 641, 1899. 

 Sterrhurus monticellii (Linton), Carnegie lust. Washington Publ. 133, pp. 61, 



62, figs. 139, 140, 1910. 



Body smooth, ventral sucker much larger than oral; cirrus pouch 

 small, in neck behind pharynx; seminal vesicle dorsal to anterior 

 border of ventral sucker; testes not far back of ventral sucker, near 

 together and somewhat diagonally placed; ovary separated from 

 testes by folds of the uterus; vitellaria at posterior border of ovary, 

 each deeply lobed ; uterus voluminous, its folds extending back of the 

 vitellaria, the early folds containing sperm; ova, 0.015 to 0.024 mm. 

 by 0.009 to 0.012 mm. 



155599—40 9 



