PARASITES OF FISHES OF BEAUFORT, NORTH CAROLINA. 



Mug-il cephalus, Common Mullet. 



361 



COPEPODS. 



1. Anchorella sp. 



Form with linear, tapering neck, postero-latera] egg sacks, and thoracic appendages modified into 

 a cylindrical organ which slips over a jiill filament of its host. [Figs. 57, 5-8.] 



Dimensions, in millimeters, life: Length 6; breadth of posterior portion through egg sacks 2; length 

 of neck 3.5; diameter of neck near base 0.7, at anterior end 0.2. 



Cuticle transparent, colorless, glistening. General color white, faintly pinkish or flesh color by 

 reflected li^ht; alimentary canal black, making a broad black band with irregular outline, most con- 

 spicuous in the neck. The cylindrical organ of attachment was 1.6 mm. in length. It consists of two 

 rings placed end to end, each ring having a distinct annulation at its middle. Rudimentary maxilla' 

 occur at the anterior end. These were in constant, quick motion. The body and neck also kept up 

 convulsive vements, which, in an unmutilated specimen, continued fora long time, 



1901. — .Inly 10: 2. July 11; ii. July 15; tew. July 15; 0. The eggs in this lot were segment- 

 ing. Aug. 26; 1. 



1902.— July 21; .1. July 31; 4. Aug. 4; l'. Aug. 19; 1. 



2. Copepods. Small, white, from gills. 



19111.— July II; 4. July 15; lew. Aug. I'll; 1. 



:'.. ErgasUus sp. 



1901.— July 11; 1: from gills. 



Sphyrsena borealis, Northern Barracuda. 



TREMATODES. 



1. Distomum sp. [Fij;. 211.] 



1902. — July Hi; 1. This specimen was found w hen a small piece of the intestine was being exam- 

 ined under the compound microscope. Dimensions in millimeters: Length 0.24; diameter, anterior 

 0.02S, at ventral sucker 9.057, maximum tl.072, near posterior end 0.021; diameter of anterior sucker 

 (Mils, ventral sucker 0.036. 



TJpeneus maculatus, Red Goat-fish. 



