GLOSSARY OF TERMS. 243 



FiLAEiA. (Filum, a thread ) A genus of the nematoid entozoa. 



Gemmation. {Gemma, a bud.) The act of growing by means 

 of buds, or germs. 



G-TNffiCOPHOETJS. (Tvvij, a female, and 0e7)w, to bear.) The term 

 applied to the canal, Canalis gyncecopTiorus, within which the 

 female of the distomum hcematobium is contained, 



Hamulabia. (Hamulus, a hook.) A species of Filaria, so 

 named in consequence of the two projecting hooks which are 

 situated upon its under surface. 



H^MATOBiTTM. (Af/ia, blood, and /3(o'w, to live.) A species of 

 Distomum (the D. haematobium) found in the portal vein 

 and its tributaries. 



Heteeophtes. ("£76/909, another, diiferent, and (J)vu), to pro- 

 duce.) A species of Distomum (the D. heterophyes) which 

 differs in appearance from the other species. 



IIEXACA^"THUS. ( "E^, six, and uKuvOa, a prickle.) The six-hooked 

 embryo of the Taenia. 



HoLOSTOiiUM. ( 'OXo9, the whole, entire, and ffjo/ia, the mouth.) 

 A genus of the nematoid entozoa. 



Hydatid. ('YcaT/s, a vesicle.) A genus of the Cestoidea, prin- 

 cipally composed of a membrane containing a watery fluid. 



Htdatigena. {'YButU, and r^i^ivofial, to be born.) Proceeding 

 from a hydatid. 



IjfEEMis. (Inermis, unarmed.) A variety of the Taenia, which 

 is not furnished with booklets upon the head, whence its 

 distinctive name (T. iuermis) . 



Infusoeia. {Infusum, an infusion.) Belonging to infusions. 

 A class which comprises the minute animalcules, which exist 

 in various infusions, in stagnant water, &c. 



Lajjceolatum. {Lanceolatus, having the shape of a spear.) A 

 term applied to a species of Distomum (D. lanceolatum). 



LoyGEVAGiiS'ATrs. (Longevaginatus, having a long sheath). A 

 designation given to a species of Strongylus (S. longeva- 

 ginatus) . 



MoNAS. (Moj/as, a single point.) A species of infusorial worm. 



Mo^'OGE^'ESlS. (MoVo?, single, and ^/eVefft?, origin.) The tran- 

 sition through a single state of development only. 



MoKOSTOMUM. (MoVos, single, and arofia, the mouth.) A species 

 of trematode worm which possesses one sucker only. 



Mtstax. (Mvara^, the upper lip.) A term applied to a species 

 of Ascaris (the A. mystax), found in the cat and some other 

 animals. The name is given in consequence of the mem- 

 branous expansions near the mouth. 



