GLOSSARY. 



17 



passages or emunctories ; to evacu- 

 ate. 



Elaborating. Improved by successive 

 operations. 



Element. The substance which forms 

 the natural or most suitable habitation 

 of an animal ; as, water is the proper 

 element of fishes ; air, of man. 



Elephantine. Pertaining to or resem- 

 bling the elephant ; huge. 



Ellipsoid. Having the longitudinal sec- 

 tion elliptical, and the transverse cir- 

 cular. 



Elliptic. Oval, but having the longitu- 

 dinal diameter more than twice the 

 length of the transverse. 



Elongated. Lengthened; extended to a 

 considerable length. 



Elytra. The external wings, or wing- 

 cases, of coleopterous and other in- 



Emarginate; Emarginated. Notched or 

 hollowed out ; applied to the edges or 

 margins of shells, when, instead of be- 

 ing level, they are hollowed out. 



Embossed. Having several parts of a 

 different shape and higher than the 

 rest of the surface. 



Embryo. The first rudiment of an ani- 

 mal in the womb. 



Emunctories. Parts which serve to carry 

 out of the body noxious particles or 

 excrementitious matter. 



Encephalous. Having a distinct head ; as 

 the molluscous animals termed En- 

 cephalce. 



Ennaton. The ninth segment in insects. 



Ensate. Gradually tapering till it ends 

 in a point. 



Ensiform. Shaped like a sword. 



Entire. Not interrupted ; not emargi- 

 nated. 



Entomolite. A fossil or petrified insect. 



Entomological Pertaining to entomol- 

 ogy, or that part of natural history 

 which treats of insects. 



Entomology. That branch of natural sci- 

 ence which treats of insects. 



Entomostraceous. Pertaining to an order 

 of small Crustaceans, many of which 

 are inclosed in an integument, like a 

 bivalve shell. 



Entozoa. Those parasitical animals 

 which exist within other animals. 



3 



Entrochite. A kind of extraneous fossil, 

 usually about an inch in length, and 

 made up of round joints, which, when 

 separated, are called trochites. They 

 are striated from the centre to the cir- 

 cumference, and have a cavity in the 

 middle. 



Eocene. In geology, the older tertiary 

 period, in which the extremely small 

 proportion of living species indicates 

 the commencement of the present ex- 

 isting state of animate creation. 



Ephemeral Beginning and ending in a 

 day ; as the ephemera or day-fly in its 

 imago or perfect state. 



Epidermal. Belonging to the cuticle, or 

 scarf-skin. 



Epidermis. The outer covering, or scarf- 

 skin. The membranous covering, 

 or fibrous horny coating of some 

 shells. 



Epigastric. Pertaining to the upper part 

 of the abdomen; as, the epigastric 

 region. 



Epimeral. Pertaining to the segment of 

 an articulated animal which is above 

 the joint of the limb. 



Epiphragm. The membranaceous or cal- 

 careous substance by which some spe- 

 cies of Molluscs close the aperture of 

 the shell when they retire within to 

 hibernate. 



Epiploon. The fatty membrane which 

 covers or occupies the interspaces of 

 the entrails in the abdomen. 



Epistoma. The space between the an- 

 tennae and oral cavity in Crustacea. 



Episternal. Pertaining to that part of 

 an articulate animal v/hich is imme- 

 diately above the sternum. 



Epithelium. The thin epidermal mem- 

 brane which covers the mucous mem- 

 branes. 



Epizoa. The class of imperfectly organ- 

 ized parasitic Crustaceans which live 

 upon other animals. 



Epizootic. In geology, an epithet given 

 to such mountains as contain animal 

 remains in their natural or in a petri- 

 fied state, or the impressions of ani- 

 mal substances. Also, an epithet for 

 a disease which prevails among cattle, 

 in the same manner as an epidemic 

 does among men. 



