GLOSSARY. 465 



ENAMEL, in anatomy, the smooth and very hard substance 



which in various forms is seen on the crown of the teeth. 

 ENCEPH'ALA, the group of molluscous animals which (like the 



Snail) are furnished with a head. The name refers to this 



distinguishing characteristic. 

 ENCRINITE, a name given to the " Stone-lilies," or fossil remains 



of the crinoid Star-fishes. Gr. krinon, a lily. 

 ENTOMOLOGIST, one conversant with Entomology, or the 



branch of science treating of insects. Gr. entoma, insects, 



and logos, a discourse. 

 ENTOMOS'TRACA, a term given to the minute freshwater crus- 



tacea and others having a flexible horny shell. Gr. entoma, 



insects, ostrakon, a shell. 

 ENTO'ZOA, an order of radiated animals composed of what are 



called intestinal worms. Gr. entos, within, zoon, an animal. 

 EPIDERMIS, the transparent membrane that forms the covering 



of the skin. Gr. epi, upon, derma, the skin. 

 EPIZOA, external parasites; an order of Crustacea which par- 

 ticularly infest fishes. Gr. epi, upon, and zoon, an animal. 

 ERRAN'TES, a tribe of Annelids; their name denotes their wan- 

 dering habits. 

 ERRATIC, wandering, irregular; not stationary nor fixed. Lat. 



erro, I stray or wander. 

 ESCULENT, eatable; that which may be used as food. Lat. 



esculenta, meat. 

 EUPHONIOUS, having a sound that is pleasing to the ear. Gr. 



cu, good or fine, and phone, sound. 

 EXHUMATION, the disinterment of that which has been buried. 



Lat. ex, out of, and humus, the ground. 

 EXUDATION, the discharge of moisture from a living body, by 



the pores of the skin. Lat. ex, out, and sudo, I sweat. 

 EXUVIAE, the cast skins or shells of animals. Lat. exuo, I cast off. 

 FARINA, the pollen, or fine impregnating dust of the anthers of 



flowers. 



FASCI'CULT, Lat. little bundles. 

 FAUNA, the animals that are indigenous to a certain country 



or district. The term is derived from the Fauni, or ruraJ 



deities in Roman mythology. 

 FILAMENT, a thread or fibre; a long thread-like process. Lat. 



filum, a thread. 

 FISSION, that spontaneous division of the body which prevails 



in some of the infusory animalcules. 

 FISSIPAROUS, reproduction by continual division of the body. 



It is observed among some of the Infusoria. Lat. fissus, 



divided, pario, I produce. 



FLORA, the plants belonging to a certain country or district. 

 FOLIATED, having leaves. Lat. folium, a leaf. 

 FOSSILS, the remains of animals and plants found in different 



geological formations. Lat. fossilis, anything that may bo 



dug out of the earth. 



FROND, a term applied to that part of flowerless plants resem- 

 bling true leaves. Lat, frons, a leaf. 



