IXDEX 



605 



Ast r<>c ni<lii-. 301 

 Astrocrinidce, 315 

 Axfrocrintis, 315 



Bfitiiiei, 315 



Astrogomphits, 301 

 Astroijnnium, 296 



A.-fmi-n'ctcn (i.umiitiacus, branchial skele- 

 ton, 351 



A*ti\'pectinidce, 296 

 Astrojphytidce, 301 

 ton, 301 



Li nckl, 301 



a, 301 



!/!'.; -90 



Astroschema, 301 

 Astrotoma, 301 

 Atelecrinus, 313 

 Atelestocrinus, 304 

 Atlanta, 90, 109 



,, Penmii, 7 

 At!i/itti<lce, 6 

 Atys, 46 



Auricula, 350, 402 

 Auricularia, 506, 507, 508, 511, 512, 



513, 514 



,, of Synapta, 512, 514 



An ricid idee, 8 

 Avicula, 17 

 .1 ri',- id idee, 17 



Axial organ ( = ovoid gland), 437, 445, 446 

 Azyyobranchia, 5 



BACULITES stage, 68 

 Buhi.nocrinus, 313 

 Bcdanoglossus, 562 



canadensis, 565 



Eoimh'cskii, 562 ; branchial 



skeleton, 580 



Knp/eri, 571 



Merschkovskii, 571 



Sarrandeocrinidce, 309 

 Barrandeocrinus, 309 

 Barrel-shaped larvse (Echiu.), 514 

 Bari/criu/'g, 304 

 Basals, 318 



Basibrachial cartilage (Ceph.), 126 

 Basipterygial cartilage (Ceph.), 127 

 Basommotophom, S 

 Batluibiaxtfr, ,'.'"/' 

 Bathycrinidce, 304 

 tit'tlii/cri/tii* Aldrichianv.s, axial canals, 



378 



Baflti/di.'rt*, 13 

 Batocrinus, 307 



,, pyrifi-'i-mis, 307 



Baur's vesicles, 467 

 Belem nites, 24 ', shell section, 69 

 Belemnitidce, 24 

 Belem nocrin us, 304 

 Belemnoteuthis, 24 

 Better ophant idee, 5 

 Belosepia, 24 



,, shell section, 69 



; 29S 



c--i, 2S5 

 !>' r< il< in. 13 

 Bipinnaria, larva, 507 ; dorsal aspect, 528 



Hiri/lm, 14 



Bivium, 325, 347, 407 



Blastoidea, 314 



Bin uiti-'i'i", 109 



Bojauus, organ of, 215, 221 



B ''//(/(/', 13 



]',< 'fit i-iiiciilarix, 289 



Bothriocida ro ida, 289 



Botyocrin ., 304 



BowrgueticrinidcB, 310 



Bouryuftin icrinus, 311 



Brachiolaria larva, 508 



Branchiopneusta, 78 



Brechites (Aspergillum), 21. 20 



Brisinga, 299 



Brisimjidce, 299 



Brissopsis, 293 



Brissits, 293 



Buccal shields (Oph.), 336 ; plates (Echin- 



oid.), 344 

 Bi'-CciniJ.cE, 6 

 Bucciiiiti/t, 160 

 Buliminus, 8 

 Bi'.lii/udidce, 8, 9 

 Bvlimus, 8 



,, oblongus, 75 



,, percersus, 160 

 Bidla, 10 



,, hydatis, nervous system, 140 

 Bullidcc, 10 



Btdh>idea (Cephalaspidce), 110 

 Bursffi (Oph.), 494 

 Byssus, 112-115, 114 



yVS, 310 



Calamus, 69 

 Calcareous cells, 190 

 < 'alct iii'i'inus, 304 

 , 296 



, 309 

 ddlocystis, 332 

 Callum, 64 

 <_'</! i/ nine, 293 

 Cahjptnea, 108 

 Calyptrceidce, 6 

 Calyx, 319 

 <_'<tn<t:riifti, 306 



i, 310 



, 6 

 , 18 

 , 6 



Cardiacea, 18 

 Can! in^t,',: 293 



<_'<iriliii!<r, 18 



Cardita, 17 

 Curilit i.kc, 17 

 Cardit'/n, 18 



edule, nervous system, 144 ; tuber- 

 culatum, 18 



