In order to complete the description of the anterior attaching 

 apparatus, one must also note that the species that have apparatuses of the 

 second type are also equipped with head glands which open by their ducts on 

 the anterior edge of the body in a varying number of clusters, but inde- 

 pendently of the buccal funnel and its derivatives. Thus, in Microcotyle 

 they open by three clusters of ducts (in front and along the sides of the buccal 

 funnel), in Octostoma by two clusters of ducts, etc. (see Fig. 23 and also 

 the chapter on embryology). 



Fig. 18. A. Acanthocotyle williamsi Price, adult worm from the skin of 

 Raja rosispinus G. and Town, near the eastern region of southern Sakhalin 

 (Sea of Okhotsk); B. Enoplocotyle minima Tagliani, adult worm. (According 

 to Tagliani, 1912). Natural size 0.4 mm. 



14 



