﻿WORMS COLLECTED AT BEAUFORT, N. C. — PEARSE 29 



size of the haptoral clamps, the notched upper lip and bilobed anterior 

 end, and in the more slender body. 



Family MICROCOTYLIDAE 



MICROCOTYLE OTRYNTERI, new species 



Figure 7, a-c 



Body slender; length 2.0 mm., width 0,25 ; length of haptor-bearing 

 portion 0.94 mm. At the anterior end there is a small papilla dorsal 

 to the mouth; the anterior end is expanded (fig. 7, c) ; the body is 

 widest in the middle and tapers toward each end. About 40 pairs 

 of haptoral clamps are arranged along the posterior end in two closely 

 set rows. Each of these is small (0.13 by 0.08 mm.) and is supported 

 around the margin of its elliptical disc by a U-shaped thickening; 

 those near the anterior end of the haptor area end in a little papilla. 

 Vitelline glands begin about 0.2 mm. from the anterior end extend on 

 each side through about 0.1 mm. of the body. 



Host. — Otrynter capHnus (Bean). 



Type.—\]. S. N. M. Helm. Coll. No. 36962. 



Occurrence. — Four individuals were taken from one host on July 29. 



Remarks. — This species differs from other microcotyleans mentioned 

 in this paper in the dorsal papilla over the mouth and in the number 

 and character of the haptoral clamps. 



MICROCOTYLE PEPRILI, new species 



Figure 7, d-f 



Body elongate ; length 2.6 mm., width 0.42 mm. ; widest in middle 

 and tapered toward anterior end and haptor-bearing region. Mouth 

 terminal with two lateral muscular suckers anterior to the pharynx. 

 On the ventral surface 0.2 mm. from the anterior end there is a sucker 

 0.073 mm. in diameter that is lined with rows of radiating spinules 

 (fig. 7, e) ; this surrounds the genital pore. The uterus opens through 

 this. Haptor-bearing area 0.12 mm. long; on it are four rows of 

 haptoral clamps, about 175 in all. The discs on the haptoral clamps 

 nearest the median line have a median supporting rod and a U-shaped 

 thickened margin, but those along the sides of the body have only 

 U-shaped supports. The vitelline glands extend along both sides 

 from the spinulose sucker back into the beginning of the haptor- 

 bearing portion, and they come together posteriorly. 



Host. — PefHlus alepidotus (Linnaeus). 



Type.—\}. S. N. M. Helm. Coll. No. 36963. 



Occurrence. — A single specimen was taken from the gill of a single 

 host on August 5. 



This species differs from others in the genus Microcotyle in the 

 number and character of the haptors and in the spinose genital pore. 



