324 GLOSSARY. 



As'teb-oid (Gr. aster, a Btar ; and eidoi, form). Star-shaped, or possessing 



radiating Ibtes or rays like a star-iiah. 

 As-te-boid'e-a. An order of Eohinodermaia, comprising the Star-fishes, 



characterized by their rayed form. 

 A-9tom'a-tods (Gr. o, without; stoma, mouth). Not possessing a mouth. 

 At'las (Gr. the god who holds up the heavens). The first vertebra of the neck, 



which articulates with and supports the skuU. 

 A'tei-toi (Lat. for a haU). Applied to the great chamber or " cloa'ca," into 



which the intestine opens in the Tunicata. 

 Au-eel'la (Lat. ffiunwi, gold). Applied to the chrysalides of some Lepidop- 



tera, on account of their exhibiting a golden lustre. 

 Au'ei-ole (Lat. dim. of auris, ear). Applied to one of the cavities of the 



heart, by which blood is driven into the ventricle. 

 Atj-toph'a-gi (Gr. autos, self; phago, I eat). Applied to birds whose young 



can run about and obtain food for themselves as soon as they escape &om 



the e"g. 

 A'vES (Lat. avu, a bird). The class of the Birds. 

 Av-i-ou-la'ei-um (Lat. avicula, dim. of avis, a bird). A singular appendage, 



often shaped like the head of a bird, found in many of the Iblyzoa. 

 Axis (Gr. axon, a pivot). The second vertebra of the neck, upon which the 



skull and atlas usually rotate. 

 Az'r-aos (Gr. a, without ; zugon, yoke). Single ; without a fellow. 



Bao-te'ei-tjm (Gr. hal-terion, a staff). A kind of staff-shaped filament which 

 appears in organic infusions after they have been exposed to the air. 



Bal'ast-cees. 



Ba-lan'i-d^ (Gr. halanos, an acorn). A family of sessile Cirripedes, com- 

 monly called " Acorn-shells." 



Ba-leen' (Lat. balaena, a whale). The homy plates which occupy the palate 

 of the true or " whale-bone" Whales. 



Bat'i-des (Gr. batos, a bramble). The family of the Elasmohranchii, com- 

 prising the Eays. 



Ba-t»a'ohi-a (Gr. iatrachoa, a frog). Often loosely applied to any of the 

 Amphibia, but sometimes restricted to the Amphibians as a class, or to the 

 single order of the Anonra. 



Bi'eid (Lat. Ms, twice ; findo, I cleave). Cleft into two parts ; forked. 



Bi-lat'ee-ai. (Lat. his, twice ; latus, a side). Having two symmetrical sides. 



Bi-sia'na (Lat. bis, twice ; manus, a hand). The order of Mammalia compris- 

 ing Man alone. 



Bip'e-dal (Lat. bis, twice ; pes, foot). "Walking upon two legs. 



Bi-ea'motis (Lat. bis, twice ; ramus, a branch). Applied to a limb which is 

 divided into two branches U. ^., the limbs of Cirripedes). 



Bi'vALVE (Lat. bis, twice ; valvm, folding-doors). Composed of two plates or 

 valves ; applied to the shell of the LamMii>ranehiata and Brachiopoda, and 

 of the carapace of certain Crustacea. 



Blas-toid'e-a (Gr. blastos, a bud ; and eidos, form). An extinct order of Echi- 

 nodermata, often called Pentremites. 



Beaoh-i-op'o-da (Gr. brachion, an arm; pous, the foot). A class of the Molr- 

 luseoida, often called " Lamp-shells," characterized by possessing two 

 fleshy arms continued from the sides of the mouth. 



Bba'ohi-dm (Gr. brachion, arm). Applied to the upper arm of Verte- 

 brates. 



Beaoh-y-u'ea (Gr. brachus,^ short ; oura, taU). A tribe of the Decapod Oras- 

 taceans with short tails (i. e., the Crabs). 



Beaots. (Se« Hydrophyllia.) 



Bead-y-pod'i-d.e (Gr. bradus, slow ; podes, feet). The family of Edentata 

 comprisino; the Sloths. 



Beah-oh'i-a (Gr. bragchia, the gUls of fishes). A respiratory organ adapted to 

 breathe air dissolved in water. 



Beaitoh'i-atb. Possessing gills or branchijB. 



Beau-ohif'e-ba (Gr. bragchia, gills ; and phero, I carry). A division of ff<M- 



