﻿36 PROCEEDINGS OF THE NATIONAL MUSEUM vol. lOO 



Family GORGODERIDAE : Subfamily Anaporrhutinae 

 BICORNUATA, new genus 



Body stout; posterior end truncate, with two fingerlike lateral pa- 

 pillae ; also two blunt lateral papillae on the inside of the acetabulum. 

 Suckers large, the acetabulum more than a third wider than the oral 

 sucker ; pharynx less than a third as wide as the oral sucker. Enteric 

 rami extend almost to posterior end ; genital pore median and anterior 

 to acetabulum ; ovary immediately posterior to acetabulum ; vitellaria 

 lateral to it and branched ; testes lateral, branched, between vitellaria 

 and posterior end; uterus extends near posterior end. The genus is 

 named for the two papillae at the posterior end and for the two lateral 

 papillae in the acetabulum. 



Type. — Bicomuata caretta^ new species, from Caretta caretta (Lin- 

 naeus). 



BICORNUATA CARETTA, new species 



Figure 9, 6 



Body flat and wide, length 1.61 mm., width 0.88 mm,, posterior end 

 truncate and bears two lateral papillae 0.12 mm. long and 0.1 mm. 

 wide. The oral sucker is 0.38 mm. wide, acetabulum 0.61 mm., phar- 

 ynx 0.13 mm. The genital pore is immediately anterior to the ace- 

 tabulum; the ovary is elongate transversely, somewhat lobate, and 

 lies on the left side of the body ; the vitellaria lie on the intestinal rami 

 just posterior to the acetabulum and are lobate; the branched testes 

 are directly posterior to the vitellaria almost halfway between them 

 and the posterior end of the body; the uterus is coiled irregularly 

 posterior to the acetabulum and extends as far back as the enteric rami ; 

 the eggs are ellipsoidal and 0.036 mm. long. 



Host. — Caretta caretta (Linnaeus). 



Type.—V. S. N. M. Helm. Coll. No. 36966. 



Occurrence. — Three specimens came from the gall bladder of the 

 host. 



Family DICROCOELIIDAE : Subfamily Brachycoeliinae 



ORCHIDASMA AMPHIORCHIS (Brann) 



From the intestine of Caretta caretta (Linnaeus) on July 19, about 

 200 of these trematodes were collected. 



Family HETEROPHYIDAE 



PARACRYPTOGONIMUS AMERICANUS Manter 



From the intestine of Ofsanus tau (Linnaeus) 12 of these worms 

 were taken on June 28. 



