468 



SUBJECTS INDEX 



Atorybia, 64. 



Atrochse, 271, 273. 



Attractonema, 240. 



Aulactinia, 94. 



Aulastoma, 318, 328. 



Aulochone (Sponge), inhabited by 



Syllis, 304. 

 Aiirelia aurita, 105, 120. 



flavidula, 105, 106. 

 Aureliidge, 120. 

 Auricularia, 417, 418, 420. 



metamorphosis of, 426. 

 Aurophore, 62. 

 Autolytus, 262, 302. 

 Axis, chief or primary, 3. 



Baer, see von Baer. 

 Balauoglossus, 373. 



claviger, 379. 



fertilization in, 379. 



genital organs of, 379. 



Kowalevskii, 379, 385. 



Kupfferi, 381. 



minutus, 379. 



relationships of, 388. 

 Balanophyllia, 89. 

 Beroid88, 150, 154. 

 Bilateria, 10. 

 Bipinnaria, 420. 



metamorphosis of, 433. 

 Bladder-worm (Taeniades), 193, 



195. 

 Blastocoele, see Cleavage cavity. 

 Blastoderm, 4. 

 Blastomere, 3. 

 Blastopore, 4. 

 Blastospbere, see Blastula. 

 Blastotrochus, 102. 

 Blastula, 4. 

 Bolina, 138, 151. 

 Boliuee, 151. 

 Bonellia, 304, 310. 

 Bothriocephalus, 192, 194, 198. 

 Brachiolaria, 421. 



metamorphosis of, 432. 

 Branchiobdella, 336. 

 Bucephalus, 186. 



Calcarea, 20, 28. 

 Callianira, 137, 150. 

 Calyconula, 70. 



Calycophoridee, 59, 67, 68, 70, 72. 

 Calycozoa, 123. 

 Campanularia, 47, 49, 52. 

 Capitella, 263. 

 Capitellidee, 295, 298. 

 Caryophyllffius, 199. 



Caryophyllia, 89. 

 Centrolecithal eggs, 8. 

 Cephalothrix, 230. 

 Ceratosa, 22, 23, 28. 

 Cercaria (Distomidee), 183, 184. 



macrocerca, 187. 



setifera, 186. 



Villoti, 186. 

 CeriantheEe, 95. 

 Cerianthus, 88, 95. 

 Cestidse, 153. 

 Cestoda. 190. 



relationships of, to Trematoda, 

 200. 

 Cestus, 153. 

 Chsetognatha, 367. 



relationships of, 371. 

 Chastopoda, 262. 

 Cheetopteridse, 274. 

 Cheetopterus, 274. 

 Chalinidae, 24. 

 Chalinula, 24. 

 Charybdesa, 103. 

 Chary bdseid SB, 102, 103. 

 Chirodota, larva of, 419. 

 Choanoflagellata, relation of to 



Porifera, 29. 

 Chrysaora, 112. 

 Chrysomitra, 74. 

 Cirratulus, 262. 

 CladonemidsB, 154. 

 Clava, 47. 

 Clavidas, 125. 

 Clavularia, 76. 

 Cleavage, 8. 



cavity, 4. 



discoidal, 8. 



spheres, see Blastomere. 



superficial, 8. 



total and equal, 5. 



total and unequal, 7. 

 Clepsine, 318. 

 Cnidaria, 39, 124. 

 Codonium, 49. 

 Cceloblastula, 6. 

 Coelom, 11. 

 Coelomic sacs, 11. 

 Coeloplana, 157, 177. 

 Comatula, nervous system of, 455. 

 Complemental males (My zostoraa), 



318. 

 Conocyema, 214, 215. 

 Convoluta, 175. 

 Coralha, 90, 101. 

 Corallium, 83. 

 Cordylophora, 47. 

 Corm, 1. 



