274 



GLOSSARY. 



embracing the spiders, scor- 

 pions, and mites. 



A'RE-O-LATE. Furnished with 

 small areas; like a network. 



A-IUS'TATE. Furnished with a 

 hair. 



AR-THRO'PO DA (Gr. , without ; 

 arthros, a joint ; pous, podvs, 

 foot) Those Articulala with 

 jointed feet. 



AR-TI-CU LA'TA (Liii.arliculus, di- 

 minutive of artus, a joint). 

 Cuvier's subkingdom of worms, 

 Crustacea, and insects. 



AR-TI-O-DAC'TY-LA (Gr. artios, 

 even; daktulos, finger or toe). 

 Those Ungulates witli an even 

 number of toes, as the ox. 



A-SEX'U-AL. Applied to animals, 

 especially insects, in which the 

 ovaries or reproductive organs 

 are imperfectly developed ; and 

 which produce eggs or young 

 by budding. 



AU-RE'LI-A. Old term for the 

 pupa of an insect. 



AU'RI-CLE (Lat. auricula, a little 

 ear). One of the cavities of 

 the heart of mollusks and verte- 

 brates. 



AZ'Y-GOS (a, without ; zugon, a 

 yoke, a pair). An organ, such 

 as a nerve or artery, situated 

 in the middle line of a bilater- 

 ally symmetrical animal, which 

 has therefore no fellow. 



B^-NO'PO DA(Gr. baino, to walk). 

 The thoracic legs of insects. 



B^E'NO-SOME (Gr. baino, to walk; 

 soma, body). The thorax of in- 

 sects. 



BI'FID. Divided into two parts; 

 forked. 



BLAS'TO-DERM (blastos, a bud or 

 sprout; derma, skin). The first- 

 formed layer of the germ-cells 

 of the embryo. 



BLAS'TO PORE. The mouth of 

 the gastrula. 



BLAS'TO- SPHERE. The embryo 

 when consisting of a single 

 cell-layer. 



BRAN'CHI A. A gill or respiratory 

 organ of aquatic animals. 



BRAN 'CHI AL. Relating to the 

 gills or branchiae. 



BUC'CAL. Relating to (he mouth 

 cavity; or rarely to the cheeks. 



BUL'LATE. Blistered. 



CA-DTJ-CI BRAN'CHI ATE (Lat. ca- 

 ducus, falling off; Gr.bragcJtia, 

 gills). Applied to those Ba- 

 tracJda in which the gills be- 

 come absorbed before adult life. 



CAL'CA-RA-TED. Armed with 

 spurs. 



CA'LYX. A little cup, ^flen ap- 

 lied to the body of a Crinoid. 



CAP'I TATE. Ending in a head or 

 knob. 



CEN-TRUM. The body or central 

 part of a vertebra. 



CE-PHAL'IC. Relating to the 

 cephalum or head. 



CE-PIIAI/O-MERE A cephalic seg- 

 ment of an Arthropod. 



CE-PHAL'O-SOME. The head of in- 

 sects, Arachuida and Myrio- 

 poda. 



CER-CO'PO-DA (Gr. cercos, tail; 

 pous, podos, foot). The last pair 

 of jointed abdominal appen- 

 dages of insects; the "cerci." 



CHE'LA. The terminal portion of 

 a limb with a movable lateral 

 part, like the claw of a crab; as 



