ECHINOSTOMA 29 



ECHINOSTOMA. 



Echinostoma (Fascioldta Garrison). One species 

 known, found in Luzon, Philippines. The presence of 

 a ring or crown of spines round the anterior extremity of 

 the body removes this worm to the genus Echinostoma. 

 Small flukes. Ovary anterior to testes. Both unbranched 



uf. 



int. 



FlG. 15. Echinostoma ilocanum (Garrison), 1908. o.s., Oral sucker; 

 v.s., ventral sucker; as., oesophagus ; g.p., genital pore; /., uterus filled 

 with eggs ; c.s., collar of spines; c.p. y cirrus pouch ; z'/., lateral gut branch; 

 y.g., yolk glands ; ov., ovary ; sh.., shell gland; ph., pharynx. 



testes bilobed. Ventral sucker very large, nearly three 

 times the size of the oral sucker ; both suckers near to 

 each other. Intestine has no diverticula. No cephalic 

 cone. Greatest width and thickness are about the 



