﻿WORMS COLLECTED AT BEAUFORT, N. C. — PEARSE 



27 



Occurrence. — From five spadefishes ; 140 specimens were tal^en from 

 the gills and esophagus on July 31. 



This species differs from others that occur on the coasts of North 

 America (Price, 1937) in the shape of the haptoral hooks and their 

 supporting bars and in the number and arrangement of the cephalic 

 glands. 



Figure 6. — a-c, Ancyrocephalus chaetodipteri, new species: a. Ventral view, X 39; i, 

 posterior end; c, ventral hook. d-f, Monocotyle pricei, new species: d, Ventral view, 

 X 39; e, hook;/, tetrapartite bodies from sucker. g-i, Tagia micropogoni, new species: 

 g, Lateral view, X 39; h, haptor; i, anterior end. 



Family MONOCOTYLIDAE : Subfamily Monocotylinae 



MONOCOTYLE PRICEI, new species 



FiGUiiE 6, d-f 



Body wide, short, and flat, length 1.25 mm., width 0.42 mm. ; truncate 

 anteriorly, tapered from the anterior third posteriorly. Posterior 

 haptor nearly circular, 0.51 mm. wide; divided into eight sectors by 

 thickenings marked by rows of tetrapartite chitinoid bodies (fig. 

 G, /) ; a circle of these bodies surrounds the round central area. The 

 hooks are 0.22 mm. in length, with a sharply recurved tip and a tuber- 

 cle near the middle on the lateral margin. There are two small eyes 

 near the posterior end of the large anterior suckerlike pseudohaptor, 

 which has 10 ovate glandular organs along each lateral margin. 

 Mouth subterminal; pharynx more than twice as long as wide (0.13 

 by 0.05 mm.) ; intestinal rami extend back to the central area of the 

 haptor. Ovary on the left side ovate; length 0.1 mm., width 0.04 mm. 

 A single testis lies behind the ovary and is somewhat larger than it. 

 The single egg in the uterus is ovate, with one end rather sharply 

 pointed; length 0.08 mm., width 0.4 mm. The genital opening is just 

 ventral to the pharynx and median. The vaginal aperture occupies 



