PARASITES OF FISHES OF BEAUFORT, NORTH CAROLINA. 369 



CESTODES. 



5. Scolex polymorphus Rudolphi. 



1901. — July 23, few; very small, in alimentary canal. July 29; few, small; n<> red pigment 

 observed; rudiment of costa on each bothrium; a strong, terminal, muscular sucker about equaling a 

 bothrium in size. 



1902.— July 17, 25, few. July 31; many, small. Aug. 4,20; lew, small. 



6. Larval Dibothrium i V I. 



L901.— July 30, 2 flask-shaped larva' from serous covering of viscera. The anterior end of one of 

 them was everted with the aid of needle points, when it was seen to possess two structures which 

 appeared to be the rudiments of bothria; length about 2 mm. 



7. ( 'estodt Ian a. 



1 here record a peculiar blastocyst collected on July is, 1901, from the outside of the viscera, 

 length 12 mm., breadth 2 ram., the dimensions, however, varying with states of contraction. [Fig. 81.] 



The minute, spine-like bristles, characteristic of cestui le larva/ ami blastocysts, suggested by their 

 shape the gland hairs of certain plants, being slightly knobbed at the ends. This feature was observed 

 only at the anterior end of the specimen. 

 s. Rhynchobothrium speciosum Linton. 



1901. — July 9, 1, encysted on viscera. Aug. 28; a specimen with rather long and slender neck, 

 which was referred at the time of collecting to this species, hut with some doubt. 

 9. Rhynchobothrium sp. 



Hooks suggest /.'. plicatum sp. nov. 



1901. — Aug. 30, few. from oval cysts on viscera. Aug. 31; 1. 



1902.— July 22, few. July Ml; 1. 



Type with long neck and small hut not minute hooks. 

 pi. Otobothrium en nacolh Linton. 



1901. — July 30, encysted in stomach wall. A.ug. 28; numerous, encysted in stomach wall. 

 11. Tetrarhynchus bisulcatus Linton. 



1901. — July 1(1, 30; Aug. 31; evsts in stomach wall; tew on each occasion. 

 11'. Synbothrium filicolle Linton. 



1901.— Aug. 30, 1. 



1902. — Aug. 22, 1, from cysts on viscera. 



13. Synbothrium sp. 



See introduction, and No. in under Cynoscion regalis. 



1901.— An-. 28, ::. 



19(12. — Aug. 20, 1, from ey>ts on viscera. 



THEMATODES. 



14. Distomum monticettii Linton (?.). 



Appendiculate distomes which were found in this host on the following dates were thought at the 

 time of collecting to represent three different species. 



1901. — Aug. 24, 1. Apparently identical with No. 9 under Lagodon rhotnboides. Aug. 28; ti; 5 of 

 these not in good condition. One recorded in notes made at time of collecting as a distinct species 

 proves to be an immature appendiculate distome. Dimension of specimen in millimeters, slightlv 

 compressed, in glycerin: Length 2; maximum breadth 0.9; diameter of oral sucker 0.28; of pharynx 

 0.18; of ventral sucker 0.53. Intestinal rami voluminous; reproductive organs rudimentary. Aug.31; 

 1. Dimensions, life, compressed, in millimeters; Length 5; breadth 1.5; diameter of oral sucker0.34; 

 of pharynx 0.21; of ventral sucker 0.82; no ova. 



15. Distomum vitello&um Linton. 

 1901.— July 30, 2, small. 

 1902.— Aug. 16, 2. 



16. Distomum dentatum Linton. 



1 9(0.— -Aug. 31, 1. The specimen was in 1 r condition. It appears to Lean individual which has 



lost the oral spines. 



B. B. F.1904— 24 



