2, Subfamily Enoplocotylinae Tagliani, 1912 



(Fig. 18, B) 



Acanthocotylidae^ having only the primary disc. The trunks of 

 the intestine are without outgrowths. The testis is single. 



Parasites of the skin of Muraenidae. 



Type and only genus, Enoplocotyle Tagliani, 1912. 



In contrast to the preceding one, the occurrence of growth of the primary 

 attaching disc during the postembryonic period is characteristic for the present sub- 

 family. Apparently all the chitinous hooks also grow, although not noticeably, because 

 we deal here with a single attaching apparatus in all stages of life of these worms. If 

 one is to compare Enoplocotyle with representatives of Acanthocotylinae there is no 

 doubt .that the first genus must be considered as simply organized. The proofs for this 

 are, in the first place, the structure of the cephalic end, which is of dactylogy rid -type; 

 in the second place, the presence of one and not several testes; and in the third place, 

 a more primitive structure of the uterus. However, the complete absence of the chi- 

 tinous thorns, the presence of which we would have been justified to expect, on the 

 cuticle in front of the attaching disc appears to be very strange. Hence it is possible 

 that here occur certain secondary simplifications connected perhaps with the very 

 small sizes of the worms which do not exceed 0. 42 mm (Tagliani, 1912). 



Sproston, (Sproston, 1946) transfers Enoplocotylinae from 

 Acanthocotylidae into the family of Microbothriidae which, as is clear 

 from comparison with the latter, cannot be considered in any way justi- 

 fiable. 



6. Family Microbothriidae Price, 1936. 



Dermophagidae MacCallum, 1926; Labontidae MacCallum, 1927; 

 Monocotylidae auct, part. 



Worms of middle and large sizes with an oval, strongly flattened 

 body. The posterior end is equipped with a very weakly developed cuticularized 

 attaching disc which is deprived of chitinous hooks in the adult state. The p. 386 

 anterior end has astrongly developed musculature. On fixed subjects there 

 is a weakly expressed false buccal sucker which perhaps is the result of the 

 retraction of the anterior end during preservation. The eyes are absent. 

 The intestinal system has a strongly developed pharynx and a two -branched 

 intestinal tract forming more or less well-developed and branched lateral 

 outgrowths; more rarely the trunks of the intestines lack outgrowths. 



461 



