.\RT. 1 TRBMATODE PARASITES OF BIRDS LINTON 19 



sucker 0.29, near posterior end 0.58; oral sucker, length 0.11, diameter 

 0.11, pharynx, length 0.17, diameter 0.13 ; ventral sucker, length 0.29, 

 diameter 0.21. There is a double row of spines around the mouth. 

 The neck is covered very densely, and the body less densely with 

 short spines. (Cat. No. 7935, U.S.N.M.) 



CRYPTOCOTYLE LINGUA (Creplin) 



1825. Distoma lingua Cbeplin, Observationes de entozois, pp. 47-48 (in Lurus 



marinus, var. maximus). 

 1899. Tocotrema lingua (Creplin), Looss, Zool. Jalirb. Syst., vol. 12, p. 586. 

 ]5X).S. Cri/pthocoiyle lingua (Creplin), Fischoeder, Zool. Jahrb. Syst., vol. 17, 



p. 548. 

 1905. Dermocystis ctenolairi Staffoed, Zool. Anz., vol. 28, p. 682 (in gills and 



skin of Ctenolairus adspersus). 

 1918. Ilallum caninum^ Wigdor, Journ. Amer. Vet. Med. Assn., Baton Rouge, 



La., pp. 254-257 (intestine of dog). 

 1920. Cryptocotyle lingua (Creplin, 1925) Fischoeder, 1903, Rtinsom, Proc. 



U. S. Nat. Mus., vol. 57, pp. 544-548 ; bibliography, pp. 570^573. 



Woods Hole, Mass. : Adult stage in intestine of ButoAdes vires- 

 cens, CohjTnbus aurittis, Gamia hwrner^ Lmms argentatus^ L. dela- 

 warensis^ Nycticorax nycticorax^ Sterna dougalli, S. hirundo. 

 Encysted in gills, fins, and skin of Otenoldbrus adspersits, Tautoga 

 onitis^ and other species of fish. 



This distome has already been made the subject of a report (Lin- 

 ton. Tocotreina lingua (Creplin), Jour. Parasit., March, 1915, vol. 

 1, pp. 128-134, text figures 1 to 3B). 



RECORD OF COLLECTIONS 



In the report cited a list of the hosts, in which this worm was 



iound in the alimentary canal, was given. Following are additions 



to the record of collections reported in 1915 : 



Butorides virescens. 



1912, August 2. 1, young; length 0.40, breadth 0.18. The 



stomach of the heron was filled with nearly 

 digested fish, among which a cunner {Tau- 

 togoluhrus adspersus) was noted. Plainly 

 the distome had survived the removal of the 

 cyst in which it had doubtless been enclosed 

 when introduced with the food. 



•Oavia immer. 



1915, July 7. Few. 



August 11. Very numerous. The intestine of the loon, 

 throughout almost its whole length, was 

 thickly peppered with these worms, visible as 

 minute, dark specks, on account of the 

 clusters of dark brown eggs in the uterus. 



