344 



aLOSSABY. 



embracing Hie spiders, scor- 

 pious, and mites. 



A're-o-latb. Furnished -vvitli 

 small areas; like a network. 



A-kis'tate. Fiiiuislied -vvitli a 

 balr. 



Ar-ti£ko'po-da (Gr. arlhrof!, a 

 joint; fous, podos, foot). Those 

 Articulata with jointed feet, 

 such as crabs and insects. 



Ar ti-ctj-la'ta (Lat.articulus, di- 

 minutive of artus, a joint). 

 Ciivier'ssubkingdom of worms, 

 crustpcta, and insects. 



Ar-ti-o-dac'ty-la (Gr. artion, 

 even; daklulos, finger or toe). 

 Those Ungulates with an even 

 number of toes, as the ox. 



A-sbx'd-al. Applied to animals, 

 especially' insects, in wliicli the 

 ovaries or reproductive organs 

 are imperfectly developed; and 

 which produce eggs or young 

 by budding. 



Au-re'lt-a. Old term for the 

 pupa of an insect. 



Au'ri-cle (Lat. avricula, a little 

 ear). One of the cavities of 

 tlie heart of mollusks and verte- 

 brates. 



Az'Y-aos (or, 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, wliich 

 has therefore no fellow. 



B^E-No'po DA{Gr. haino, to walli;). 

 The thoracic legs of insects. 



ByB'NO-soME (Gr. baino, to walk; 

 soma, body). The thorax of in- 

 sects. 



Bi'fid. Divided into two parls; 

 forked. 



Blas'to-derm (Uasios, a bud or 

 sprout, derma, skin). The first- 

 formed layer of the germ-cells 

 of the embryo. 



Blas'to-porb. The moutli of 

 the gaslrula. 



Blas'to sphere. The embryo 

 when consistingof a single cell- 

 layer. The same as the blaslula. 



Blas'ttj-la. The embryo with 

 but a single layer of cells. 



Bram'chi-a. a gill or respiratory 

 organ of aquatic animals. 



Buc'cal. Relating to the mouth 

 cavily; or rarely to the cheeks. 



Bdl'latb. Blistered. 



Ca-dtj-ci bran'cht ATE (Lat. ca- 

 dncns, falling off; Gr. bragchia, 

 gills). Applied to those Ba- 

 traclda in wliich the gills be- 

 come absorbed before adult life. 



Cal'ca-ra-ted. Armed with 

 spurs. 



Ca'lyx. a little cup; often ap- 

 lied to the bodj' of a Crinoid. 



Cap'i TATE. Ending in a head or 

 knob. 



Cen-tuum. The body or central 

 part of a vertebra. 



Ce-phal'ic. Relating to the 

 cephalum or head. 



Ce-piial'o-mere. a cephalic seg- 

 ment of an Arthropod. 



Ce phal'o-some. The head of in- 

 sects, Arachnida and Myrio- 

 poda. 



Cer-co'po-da (6r. cercos, tail ; 

 pons, 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; aa 



