#Gre ga' ri ous#, a.s.sociations of animals with little division of labor; gathering in flocks, herds, etc.
#Gullet#, the inner end of the oral groove.
#He mip' te ra#, insects with a piercing organ for sucking their food, Bugs.
#He pat' ic#, pertaining to the liver.
#Her biv' o rous#, plant-eating.
#Hock#, the joint of the hind leg situated between the tibia and tarsus, corresponding to the ankle in man.
#Hu' me rus#, the long bone of the upper part of the arm or fore limb.
#Hy men op' te ra#, order of insects to which belong bees, ants, and wasps.
#Ich neu' mon# (ic nu' mon), an insect that deposits its eggs upon or in other insects, upon which its larvae will feed.
#In ha' lent#, flowing or moving toward the body.
#In ha' lent pores#, the outer ends of the ca.n.a.ls in the body-walls of sponges.
#Ink-sac#, a defensive structure found in the squid.
#Ju' gu lar#, pertaining to the throat.
#La' bi um#, lower lip.
#La' brum#, upper lip.
#La mell' i branch i a' ta#, the cla.s.s to which the clam, oyster, etc., belong; bivalves, sometimes called pelecypoda.
#Lar' va#, (1) the early form of an animal when it is unlike the parent, or undergoes a metamorphosis; (2) the first stage of postembryonic development.
#Lat' er al#, (1) situated to one side of the median plane; (2) situated in the region of the hinge in a bivalve sh.e.l.l.
#Lep i dop' te ra#, b.u.t.terflies and moths.
#Lig' a ment#, a strong band or cord binding two structures together.
#Lin' gual#, pertaining to the tongue.
#Lip#, any structure that bounds an orifice.
#Mam' mal#, vertebrates with a covering of hair or fur.
#Man' di ble#, a jaw or a jaw-like mouth-part.
#Man' tle#, folds of skin covering the body of a bivalve.
#Masking#, the covering of an animal by some object so as to hide its ident.i.ty.
#Max il' lae#, the appendages just back of the mandibles in arthropods.
#Max' il la ry#, pertaining to or situated near the jaw.
#Max il' li peds#, the appendages back of the maxillae in crustaceans.
#Me' di an#, pertaining to the middle.
#Mes o gle' a#, a non-cellular layer between ectoderm and endoderm cells.
#Mes o tho' rax#, the middle division of the thorax.
#Met a car' pal#, one of the bones between the wrist (carpus) and the fingers (phalanges).
#Met a mor' pho sis#, the series of changes which take place in the development of some animals after they are hatched.
#Met a tar' sal#, one of the bones of the metatarsus, between the ankle and the toes.
#Met a tho' rax#, the most posterior region of the thorax.
#Mi cro nu' cle us#, _see_ Nucleolus.
#Mimicry#, a method of protection due to the resemblance of an unprotected to a well-protected animal.
#Mol lus' ca#, the branch of animals to which clams, snails, etc., belong.
#Mo n' cious#, reproductive organs in different regions of the same individual.
#Mouth#, the anterior opening into the digestive cavity.
#Neph rid' i um# (pl. #neph rid' i a#), a tubule functioning as a kidney in some of the worms.
#Net' tle cells#, the stinging cells found in the clenterates.
#Noc tur' nal#, pertaining to night.
#Nu cle' o lus# (pl. #nucleoli#), a very small, dense, dark-staining body, either within the nucleus or near it. In the latter case it is often called the _paranucleus_ or _micronucleus_.
#Nu' cle us# (pl. #nuclei#), a dense bit of protoplasm usually near the center of a cell, often staining dark.