G 



GLOSSARY. 



having two heads or origins ; nnd any 

 such muscle is denominated biceps. 



Bicolligate. In ornithology, the connec- 

 tion of all the anterio*r toes by a basal 

 web. 



Bicornate ; Bicomous. Having two horns. 



Bicuspid. Having two points. 



Bidental. Having only two teeth. 



Bidigitate. Having two fingers or finger- 

 like appendages. 



Bifariotts. Parting in opposite directions. 



Bijid. Divided by having a deep notch 

 down the centre, opening with a cleft. 



Biform. Having two forms, bodies, or 

 shapes. 



Bifurcated. Divided into two prongs or 

 forks. In entomology, denoting that 

 the antennas are composed of three 

 pints, of which the apical one is bent 

 double, and attached to the second 

 joint by its centre. 



Bilabiate. Furnished with two lips. 



Bilateral. Having two symmetrical sides. 



Biliary. Belonging to or conveying the 

 bile ; as a biliary duct. 



Bilobed; Bilobate. Divided into two 

 lobes. 



Bilocular. Divided into or containing 

 two cells. 



Bimarginate. Furnished with a double 

 margin ; as the lip of certain shells. 



Biocellnte. When the wing of an insect 

 is marked with two eye- like spots. 



Bipalpate. When an imperfect mouth 

 has only labial or maxillary palpi. 



Biparous. Bringing forth two at a birth. 



Bipartite. Divided into two correspond- 

 ing parts. Applied to the antenna, it 

 signifies that they are divided to the 

 hase into two nearly equal branches. 



Bipectinate. Relating to some part which 

 has two margins toothed like a comb. 



Biped. An animal having two feet, as 

 man. 



Bipedal. Having two feet. 



Bipeltate. Relating to any part having 

 a defence like a common shield. 



Bipennate. Having two wings. 



Bi/mpillate. When" an eye-like spot on 

 the wing of a butterfly has two dots 

 or pupils within it of a different color. 



Biradiate. Having two rays; as a bi- 

 radiate fin. 



Bisect; Bisected. When the head and 



trunk are not separated by a suture* so 

 that an insect consists only of two 

 pieces. 



Biserrate. When the antennae are on 

 each side serrate or toothed like a saw. 



Bisexual. Partaking of the nature of 

 both sexes. 



Bisulcous. Cloven-footed ; as swine or 

 oxen. 



Bitubercnlate. Having two knobs or tu- 

 bercles. 



Bivalve. A shell consisting of two parts, 

 which open and shut; as the oyster. 



Bivalve ; Bivahnlar. Having two valves 

 or shells which open and shut. 



Biventral. Having two bellies. 



Blood. The nutritive fluid which circu- 

 lates through the arteries and veins of 

 an animal body, and which is essential 

 to the preservation of life. All the 

 other animal fluids are derived from 

 the blood by secretion. 



Blubber. The fat of whales and other 

 large marine animals, of which is made 

 train-oil. It lies immediately under 

 the skin and over the muscular flesh. 



Bombycinous. Of the color of the silk- 

 worm ; transparent, with a yellow tint. 



Boom. To cry as the bittern. 



Boreal. Pertaining to the north or north- 

 ern regions. 



Boss. In bivalve shells, the projecting 

 point in each valve, near the hinge. 



Eossed. Studded or knobbed; covered 

 over with protuberances^ 



Botrylli. A little cluster of berry-shaped 

 bodies. 



Botryoidal. Having the form of a bunch 

 of grapes. 



Bovine. Pertaining to animals of the 

 genus Bos, or ox. 



Brachial. Belonging to the arm. 



Brachiopodal. Relating to the Bracliio- 

 poda, a class of acephalous Mollusca, 

 with two long spiral fleshy arms con- 

 tinued from the side of the mouth. 



Brachypterous. Short-winged. 



Brachyurous. A term applied to the 

 short-tailed Crustacea. 



Brackish. Salt in a moderate degree ; 

 as brackish water. 



Bmnchilce. The respiratory organs which 

 extract the oxygen from air contained 

 in water; the filamentous organs of 



