CLASS XI. ORDE& II. 121 



three vesicles ; tail obtuse or subulate ; intestines 

 spiral, milk-white and pellucid. In man, beast, 

 fish, birds. 



STRONGYLUS, (horse glass worm,) body round; 

 long, pellucid, glabrous ; the fore part globular, 

 truncate, with a circular aperture, fringed at the 

 margin ; the hind part of the female entire and 

 pointed ; in the male dilated into loose, distant, 

 pellucid membranes. In horses and sheep. 



LEUNAEA, (fish-eater,) body oblong, somewhat 

 cylindrical, naked ; tentacula or armes two or 

 three each side and round, by which it affixes it- 

 self ; ovaries two, projecting like tails from the 

 lower extremity. In mouths, gills and fins of fish, 



ORDER 2. PARENCHYMATA. 



Having no particular cavities for the reception 

 of food and no mouths, but imbibe their food by 

 pores, which seem to mix immediately with the 

 general parenchymous mass, constituting their 

 bodies. 



ECHYNORYNCHUS, body round : proboscis cy 

 lindric-retractile, and crowned with hooked 

 prickles. In hogs, birds, reptiles and fishes. 



FACIOLA, (groupd worm, fluke,) body flatish, 

 with an aperture of pore at the head, and general* 

 ly another at a distance beneath, seldom a single 

 one. In man and all animals. 



CARYOPHYLLJEUS> (pink fish-eater,) body round; 

 mouth dilated and fringed. In fresh water fish. 



PLANARIA, (eyed- worm,) body gelatinous, 

 flatish, with a double ventral pore ; mouth termi- 

 nal. In rivers and stagnant waters. It is divid- 

 ed into the no-eyed, the one-eyed, the two-eyed, 

 the three-eyed, the four-eyed, and the many-eyed. 



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