614 



INDEX 



of a spine, direct and progressive, 10. 



indirect and regressive, 10. 

 Grunewaldtia, 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. 

 paragerontic development in, 270. 

 tentacles in, 275. 



to Dallina, morphogeny from, 303. 

 to Magellania, morphogeny from, 



303. 



to Megathyris, morphogeny from, 

 302. 



Haeckel, E., account of the Lambert 

 family, 92. 



classification of the articulates, 112. 

 law of radial symmetry, 236. 

 report on Radiolaria, 16. 

 spines in Radiolaria, 48. 



in Spumellarian Radiolaria, 44. 

 hairs, modified, of Echidna and Porcu- 

 pine, 9. 



Hall, J., description of Proetus parvius- 

 culus, 175. 



dorsal foramen in some Brachi- 



opoda, 264. 



progressive differentiation of or- 

 nament in Dictyospongidae, 49. 

 spines in Gastropoda, 51. 



on corallites in compound 



corals, 45. 



spinules of many Bryozoa, 45. 

 and Clarke, J. M., compound spines 

 in Spirifer hirtus, 68. 



development of spinose forms 



of Brachiopoda, 24, 25. 

 inception of Lingula, 286. 

 marginal spines of Atrypa 

 hystrix, 45. 



spinules in Brachiopoda, 51. 

 , 411. 



brachial supports in, 413. 



Nicoletti, short spire of, 413. 



recurved loop in, 413. 



Saffordi, short spire of, 413. 

 Hamites, 96. 



Hancock, A., alternating cirri in adult 

 lophophore of Brachiopoda, 275. 



fleshy portion of the arms in Lio- 



thyrina and Terebratulina, 292. 

 Harpedidae, 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'Orbignyianum, 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. 



ungula, glabella in, 137. 

 Harpides, 137, 220, 222. 



affinities of, with Conocoryphidse, 

 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. 

 Heider, law of radial symmetry, 236. 

 Helicopegmata, 242, 270, 412, 416, 417. 

 Heliodiscus astericus, spines in, 48. 



cingillum, spines in, 48. 



glyphodon, spines in, 48. 

 Heliodrymus dendrocyclus, spines in, 48. 

 Helmersenia, 244. 



