106 PROCEEDINGS OF THE NATIONAL. MUSEUM. vol.64. 



Urophycis chuss. 



1903, October 17 : 1, from intestine, bothria with costae, 1 fish ex- 

 amined. 



1910, August 12: Many, some in gall bladder; red pigment. Dr. 

 C. W. Hahn, 3 fish examined. 



1914, October 28 : 1, 10 fish examined. 



1915, August 20 : Numerous, small ; Dr. G. A. MacCallum, 10 fish 

 examined. 



Urophycis regius. 



1908, September 26 : Very numerous, 1000," approximately, in vial ; 

 length 0.40 to 1.60 mm.; myzorhynchus, in many cases protruded; 

 characteristic shape long oval, or wedge shape, a few clavate ; diame- 

 ter through bothria about 0.30, 1 fish examined. October 21 : Few, 

 1 fish examined. 



1912, November 14 : 3, 1 fish examined. 



Vrophyais tenuis. 



1911, August 4: Few, small, red pigment, 3 fish examined. 



1916, June 15: Few, small; in vial attached to a specimen of P. 

 loliginis, 2 fish examined. 



1918, September 10 : Few, 1 fish examined. 



Xiphias gladius. 



1904, July 15: Many, and great variety of forms; among them 

 were many small larvae with 2 red pigment spots in the neck, and 

 the rudiment of an auxiliary acetabulum on the bothrium, 1 mm. 

 and less in length; others, much larger, with distinct acetabula, but 

 with pigment spots and as much as 3 mm. in length, are apparently 

 simply larger examples of the cestode which is represented by the 

 smaller forms; some of these larger forms have the neck differen- 

 tiated from the body, and appear to be young of Phyllohothrium 

 loliginis^ examples of which were present, but with no intermediate 

 forms. The largest ^S'. polyniorphus was 3 mm. in length, while the 

 smallest P. loliginis was 10 mm. in length, contracted; 4 fish exam- 

 ined. (See 19226, pp. 10, 11.) July 28 : Many, as in foregoing, 1 fish 

 examined. 



I 



