WORMS. 5 



CHARACTERS of WORMS. 



I. INTESTINA. Simple naked Animals without limbs. 

 A. Found within other Animals : eyes o. 



I. Af carls. Body round, tapering each way : head with 



3 velicles. 



2; Trlchocephalus. Body round, tapering towards the. tail: 



head furniihed with a probofcis. 

 • 4. Uncinaria, Body filiform, elaftic : head with mem- 



bnnaceous angular lips : tail ot the 

 female aeiform or needle- -'haped, of the 

 male armed with 2 hooks inclofed in 

 pellucid veficle. 



3. Filaria. Body entirely filiform. 



5. Scolex. Body minute gelatinous opake: head ex- 



fertile and retractile, with 4 pellucid 

 auricles. 



6. Llgula* Body linear equal and long. 



12. Ltnguatula: ' Body deprefled oblong: mouth placed on 



the tore-part and furrounded with 4 

 parages. 



7. Strongylusk Body round long; the fore-part globular 



and truncate, with a circular aperture 

 fringed at the margin ; hind-part of 

 the female pointed, of the. male hooded. 



8. Echynorhynchus. Body rqund: probofcis cylindrical, re- 



tractile, and crowned with hooked 



prickles. 

 Body round: head crowned with prickles. 

 Body pointed behind : the fore-part obtufe, 



with an orbicular mouth. 

 Body round fmooth with a large dilated 



mouth. 

 Body depreiTed ovate, with a terminal and 



lateral poie. 

 Body flat jointed : head with 4 orifices for 



fuel ion. 

 Body linear and ciliate each fide with re* 



flecked prickles. 



B. AW inhabiting the bodies ' of other animals* 

 a. Without the lateral pore, 



16. Goratus. 



9- 



riaruca. 



10. 



Cucullanus. 



11. 



Caryaphyllaus 



*3- 



Fofc'iola. 



14, 



Taenia, 



*5- 



Fur I a'. 



