INDEX-GLOSSARY. 361 



Artery A blood-vessel carrying blood away from the heart Abdominal, 

 96; Allantoic, 267, 310; Antennary, 96; Aorta, 164, 197, 227, 246, 

 265, 308 ; Brachial, 246, 290 ; Branchial, 164, 227 ; Carotid, 164, 

 197, 246, 265, 290, 331 ; Caudal, 164, 246; Cceliac, 164, 197, 246, 290; 

 Cosliaco-mesenteric, 197 ; Coronary, 290 ; Cutaneous, 198 ; Dorsal, 

 142 ; Femoral, 246, 290 ; Hepatic, 96, 290 ; Hyoidean, 165 ; Iliac, 197, 

 246,290; Ilio-lumbar, 290; Innominate, 246, 290, 331; Intercostal, 

 290 ; Lateral, 142 ; Lieno-gastric, 164, 290 ; Lingual, 197 ; Mesenteric, 

 164, 197, 246, 290; Ophthalmic, 196; Parietal, 164; Pectoral, 246; 

 Pulmonary, 198, 246, 265, 290, 308, 331 ; Renal, 164, 246, 290, 297 ; 

 Sacral, 296 ; Sciatic, 198, 246 ; Sternal, 96 ; Subclavian, 164, 197, 246, 

 265, 290, 331 ; Thoracic, 96 ; Vertebral, 246, 290 ; Vitelline, 267. 



Arthrobranchia (lipdpov, a joint ; braiichia), in the Crayfish) One of the 

 eleven brush-like gills attached on either side to the membranous junc- 

 tions of certain appendages and the body, 97. 



Arthropoda (apQpov, a joint; TTOUS, TTOO-, a foot), 340; Chap, vi., 83. 



Artiodactyla (apTws, even ; octKTiAos, toe), 346, 355. 



Ascaris, 340 ; 47-53, 74. 



Ascension Is., 348. 



Ascidia, 135, 341. 



Asia, 349, 350, 357, 352. 



Assimilation (assimilo, I make like to) The building up of food into proto- 

 plasm, 9. 



Astacus (ioTOKOf, a species of crayfish), (crayfish), 340; 83-109, 135, 138. 



Asterias, 73, 74. 



Atlas The ring-like first vertebra, 184, 238, 278. 



Atrial cavity, in Amphioxus A chamber surrounding the pharynx through 

 which water passes out, 136, 134, 152. 



Atriopore, 136, 139, 142. 



Atrium, genital (atrium, an entrance hall), 42, 131. 



Auditory Organs, 369 ; Astacus, 103 ; Anodonta, Unio, 121 ; Helix, 134 ; 

 Scyllium, 172; Rana, 218; Columba, 255; Lepus, 304 ; Comparison 

 of, 321. 



Auricle (auricula, dim. of auris, the ear) In a two or more chambered 

 heart, the thin walled receptive part, 114, 162, 195, 245, 289. 



Australian region, 350, 352. 



Aves, 344 ; Chap, xi., 229. 



Axial, of skeleton Belonging to the head and trunk, 156, 178. 



Axis, in Bird and Mammal The second vertebra, 238, 279 ; Basi-cranial a. , 

 271; Facial a., 323. 



Axis-cylinder, of nerve-fibre, 215. 



Azores, 348. 



