364 INDEX-GLOSSARY. 



Bowman's Capsule The dilated commencement of a uriniferous tubule, 



into which a glomerulus projects, 205, 251, 295. 

 Brachium (brachium, the arm) The upper arm. See Arm. 

 Brain Scyllium, 168 : Rana, 210; Columba, 252 ; Lepus, 301 ; Homo, 333, 



339 ; Gorilla, 339. 

 Brain case = Cranium, q.v, 



Branchiae ((3pdyx ia > branchice, the gills of a fish). See Gills. 

 Branchio-cardiac-groove, 86. 

 Branchiostegite, in the Crayfish The fused thoracic pleura, which form 



the outer wall of the branchial chamber, 86. 

 British Isles, 348. 



Bronchus One of the main subdivisions of the trachea, 248, 293. 

 Brow-spot, in the Frog, 2. 

 Buccal cavity = Mouth cavity, q.v. 

 Buccal mass, in the Snail The anterior part of the alimentary canal, which 



contains the mouth-cavity and odontophore, 125. 

 Buccal pouch, 57. 

 Buddha, 113. 

 Budding, 39. 

 Bulb (Medulla Oblongata) The axial part of the hind brain, 169, 211, 253, 



302. 

 Bulla (butta, anything swelling up and so becoming round) The dilated 



part of the tympanic bone, in which the tympanic cavity is contained, 



273. 



Bursa ; B. Entiana, 160 ; B. Fabricii, 242. 

 Butterfly, 4. 

 Byssus, in some Lamellibranchs Threads developed by a gland near the 



foot, and subserving attachment to foreign bodies, 121. 



Crecum (ccecus, blind) A pouch of the intestine which ends blindly, 94, 



242, 286, 330. 

 Calamoichthys, 349. 

 Calcar (calcar, a spur), 176, 188. 

 Canal Branchio- cardiac, 96 ; Central c., 253; Coelomic, 143; Neural, 168, 



210, 252, 300; Neurenteric c., 151, 224; Pigmented c., 144 ; Pore c., 



90; Semicircular c., 173, 219, 255, 304; Urinogenital, 298, 299; 



Vertebrarterial, 238, 278. 

 Canaliculi (canaliculus, dim. of canalis, a channel) Minute tubules in bone, 



traversed by processes of the bone-cells, 188. 

 Capillaries, 60, 79, 96, 142, 166, 200, 245, 292. 



