312 



INDEX. 



Brain, 92, loi. 

 Branchiomcry, 65, 132. 

 Branchiostoma cultcllum, 40. 



lubricutn, 8. 

 Breeding-season, 105. 

 Brood-pouch, 215. 

 Brooks, 254, 277, 289. 

 Bulbils, vascular, 48. 

 burckhardt, 284. 

 Bury, H., 269. 



Caldwell, 291. 



Canal, alimentary, 24, iii, 187, 196, 214, 



235. 249. 264. 

 neurenteric, 114, 118, 199, 202, 275. 

 Capillaries, 49, 98. 

 Capite.llidt^, 81. 

 Cartilages, buccal, 18, 147. 



labial, 18. 

 Caulus, 266. 

 Cavity, opercular, 22. 



peribranchial (see also Atrium), 22, 



183, 186, 195, 209. 

 peritoneal, 22, 

 Cells, epithelio-muscular, 191. 

 Cellulose, 182. 

 Cenogenesis, 177. 

 Cephalisation, 75, 89. 

 Cepkalochorda, 13. 

 Cepkalodiscus, 261-267, 280, 289. 

 CkcBtognatha, orjZ. 

 Ciona intestlnalis, 203, 210, 215, 222, 224, 



226, 229, 230-235, 240, 271, 288, 



292, 293. 

 Cirri, buccal, 12, 20, 145. 

 Cladoselachidts, 44. 

 Clapp, Cornell\, 281. 

 Claveli?ia, 181, 185, 187, 200, 215, 225, 



241, 288. 

 Cleavage, 107, 197. 



polymorphic, 108. 

 Coeca, intestinal, 249, 261. 

 CcrciliaJii, 67, 

 Coecum, hepatic, 24, 236. 

 Caelom, 22, 26, 31, 33, iii, 121, 122, 220- 



222, 247-248, 265, 266. 

 perigonadial, 153, 177. 

 Coencecium, 263. 

 Collar-pores, 98, 248, 265. 

 Collar-region, 242, 264. 

 Collector, 45, 165, 

 Commissure, circumcesophageal, 96, 273, 



280. 

 Compression, bilateral, 15, 43, 115. 



Contraction, peristaltic, 98, 192. 



Cordon gangiionnaire visceral, 224. 



Costa, 7, 10. 



Craniota, 17, 



Crinoidea, 268. 



CrosS'baj-s, 28. 



CUNNINOIiAM, J. T., 80. 



Cutis, 38, 41, 122. 



CUVIEK, 3. 



Cyclostomata, 8, 10, 45, 208. 

 Cyclostome, 46. 

 Cynthia papulosa, 200. 



Davidoff, 200. 



Dean, B., 44. 



Degeneration, 5. 



Development, abbreviated, 214, 215, 239, 



adolescent period of, 149, 150. 



direct, 250. 



duration of larval, 149, 169, 203, 215. 



embryonic, 114, 201. 



larval, 117, 130. 



latent, 145, 160. 



precocious, 161, 212, 

 Differentiation, sexual, 154. 

 Dissepiments (see Septa). 

 Distaplia magnilarva, 206, 225, 288. 

 Distribution, 11, 40-41. 

 Diverticula, anterior intestinal (see also 



Head-cavities), 115. 

 DOHRN, 5, 30, 167, 173, 176, 178, 179, 280, 



281,282. 

 Duct, mesonephric, 66. 



pronephric, 69,78, 99. 

 Dura mater, 87. 



Rchinoderma, 250-256, 267-271, 291. 

 Ectoderm, 24, 78. 



ciliated, 112, 113, 130, 175. 243, 257. 



definitive, iii. 



primitive, no. 

 ElSlG, 45, 81, 94, 103, 293. 

 Embryo, ciliated, 113, 214. 



ventral curvature of Ascidian, 201. 

 Emery, 67. 

 Endoderm, definitive, in. 



primitive, no. 

 EndostyIe,9, 24,31, 39, 130, 138, 149.150, 



167, 177, 1S5, 195. 227, 229, 250. 

 Enteroco::l, 252, 254, 255. 

 Rnt€rop}icusta, 242. 

 Epicocle, 41. 

 Epithelium, atrial, 33,59, 100, 209. 



ccelomic, 33, 122, 220-222. 



