312 GLOSSARY. 



Labrum: a part of the mouth of Crustacea and insects. 



Lanceolate: lance-shaped. 



Larva (plural larvd): an insect in its first stage after 



leaving the egg. 

 Laterally: by the sides. 

 Lophophore: the disk supporting the tentacles in the 



Polyzoa. 

 ' Lorica (plural loricce): the sheath or dwelling of certain 



microscopic animals. 

 Loricate: with a lorica. 



Mastax: the internal jaws of the Rotifers. 

 Median: middle. 



Membranous: formed of a thin skin. 

 Moniliform: like a string of beads. 

 Monograph: a treatise on a single subject. 



Nodule: a small, rounded elevation. 



Oblong: longer than broad. 



Obtuse: blunt. 



(Esophagus: the tubular passage extending from the 



pharynx or throat to the stomach. 

 Opaque: not transparent. 

 Ovoid: egg-shaped, or oval in outline. 



Papilla (plural papilla) : a small rounded protuberance. 

 Parasite: a. hanger on; as one animal nr plant living 



at the expense of another. 

 Parietal: pertaining to the wall or side. 

 Pellet: a little ball or mass. 

 Pellucid: translucent or transparent. 

 Pendent: hanging. 



