614 



INDEX 



of a spine, direct and progressive, 1 0. 

 indirect and regressive, 10. 

 Griinewaldtia, 245. 

 guinea pigs, growth in, Minot, 92. 

 Giinther, A., mimetic features of Aus- 

 tralian pipe-fish, 63. 

 protective characters of Australian 

 pipe-fish, 55. 

 Gwynia, 231, 271, 278, 288, 289, 292, 

 297, 299, 307, 308, 407, 409. 



absence of calcareous loop in, 271. 



deltidial plates in adult, 261. 

 adult loop in, 291. 

 labial appendages in. King, 271. 

 no metamorphoses in, 302. 

 paragcrontic development in, 270. 

 tentacles in, 275. 



to Da/Una, morphogeny from, 303. 

 to Mayellania, morphogeny from, 



303. 

 to Megathijris, morphogeny from, 

 302. 



H 



Haeckel, E., account of the Lambert 

 family, 92. 



classification of the articulates, 112. 

 law of radial symmetry, 236. 

 report on Radiolaria, 16. 

 spines in l\adiolaria, 48. 



in Spumollarian Radiolaria, 44. 

 hairs, modified, of Echidna and Porcu- 

 pine, 9. 

 Hall, J., description of Proetus parviiis- 

 cuius, 175. 



dorsal foramen in some Brachi- 



opoda, 264. 

 progressive differentiation of or- 

 nament in Dictyospongida;, 49. 

 spines in Gastropoda, 51. 



on corallites in compound 

 corals, 45. 

 spinules of many Bryozoa, 45. 

 and Clarke, J. M., compound spines 

 in Spirifcr hirtus, 68. 



development of spiuose forms 



of Brachiopoda, 24, 25. 

 inception of Lingnla, 286. 

 marginal spines of Atrypa 

 hijitrix, 45. 



spinules in Brachiopoda, 51. 

 Unllina, 411. 



brachial supports in, 413. 



Nicoletti, sliort spire of, 413. 



recurved loop in, 413. 



Saffordi, short spire of, 413. 

 Hamites, 96. 



Hancock, A., alternating cirri in adult 

 lopliophore of Bracliiopoda, 275. 



fleshy portion of the arms in Lio- 

 thyrina and Terehratulina, 292. 

 Harpedida;, 130, 131, 134, 139. 



defined, 137. 



free segments in, 137. 



primitive head structure in, 135. 

 Harpes, 113, 130, 137, 222. 



cephalon in, 127, 137. 



determination of sutures in, Bar- 

 rande, 134. 



d'Orbignyianmn, glabella in, 137. 



eye-line in, 223. 

 -spots in, 135. 



fourth annulation in, 127. 



free-cheeks in, 124. 



hypostoma in, 135. 



lines on cephalon of, 118. 



ocular ridges in, 222. 



pygidium in, 137. 



triangular areas in adult, 222. 



unguUi, glabella in, 137. 

 Harpldes, 137, 220, 222. 



affinities of, with Conocoryphidae, 

 137. 

 with Harpes, 137. 



ocular ridges in, 222. 

 Harpina, 137, 220. 

 Harris, G. F., taxonomic value of 



spines, 101. 

 hart, royal, 17. 

 Hartella Matthewi, small cephalon of, 



Matthew, 178. 

 Harttia, 140. 



glabella in, 141. 

 Hausmannia, 156. 



hawthorn, spiniform branches of, 75. 

 Ileider, law of radial symmetry, 236. 

 Ilclicopcgmata, 242, 270, 412, 410, 417. 

 Ueliodiscus astericus, spines in, 48. 



cingillum, spines in, 48. 



glyphodon, spines in, 48. 

 Heliodrymus dendrvcyclus, spines in, 48. 

 Ilelmersenia, 244. 



