GLOSSARY. 73 



La'rynx (Gr. lantnx, the throat). The upper part of the 



windpipe, extending to the lower border of the cricoid 



cartilage. 



La'teral (L. latus, lateris, the side). Relating to the side. 

 Latis'simus dor'si (L. broadest muscle of the back). The 



largest muscle of the trunk. 

 Laxa'tor tym'pani (L. loosener or relaxer of the drum). A 



small muscle which by its contraction lessens the tension 



of the tympanic membrane. 

 Leiotri'chi (Gr. lews, smooth; thrix, trichos, the hair). The 



division of mankind which embraces the smooth-haired 



races. 

 Lemnis'cus (L. a fillet). A bundle of fibres on each side of the 



floor of the cerebrum. Also applied to each of two oval 



bodies hanging from the interior walls of the body in the 



Acanthocephala. 

 Lemu'ridae. A division of the Primates which includes the 



lemurs, &c. 



Lemuri'ni. A family of the Lemuridas. 

 Lenti'cular (L. lenticiila, a lentil). The shape of a lentil, as 



the lenticular glands of the stomach, and the lenticular 



ganglion of the fifth nerve. 



Lepa'didae (Gr. Kpas, a limpet). A family of the Cirripedia. 

 Lepido'ptera (Gr. lepis, lepidos, a scale ; pteron, a wing). A 



group of the Insecta which comprises the butterflies and 



moths. 

 Lepidos'teidae (Gr. lepis, lepidos, a scale). A sub-order of 



Ganoid fishes. 

 Leptocar'dia (Gr. leptos, thin, small; kardia, the heart). A 



group of the Vertebrata, proposed by Haeckel, to comprise 



Amphioxus. 



Lep'tothrix (Gr. leptos, slender; thrix, hair). A fine filamen- 

 tous body accompanying the germination of bacteria, 

 Leu'cocyte (Gy. leukos, white; kutos, a hollow). A term some- 

 times applied to the white corpuscles of the blood. 

 Leucocythe'mia (Gr. leukos, white; kutos, a hollow; haima, 



blood). A disease in which there is a large increase in 



the number of white corpuscles in the blood. 

 Leuco'nes (Gr. leukos, white ; konis, dust). A family of the 



Calcispongiae. 



Leva/tor a'ni (L. raiser of the anus). A muscle of the anus. 

 Leva/tor pala'ti (L. raiser of the palate). A muscle of the soft 



palate. 



