INDEX. 



717 



Pupa of insects, 308 



of the barnacle, 296 

 Purpura lapillus, 243 

 Pycnogouidoe, 339 

 Pycnopodia, 115 

 Pygidium, 304 

 Pyrosoma gigas, 392 

 Pythonomorpha, 500, 517 



QUOHOG, 229 



RACCOON, 615 



Radio! aria, 26, 27 



Rail, 544 



Raja eglauteria, 422 



erinacea, 421 



fluviatilis, 424 



laevis, 421 

 Raua, 487 



halecina, 470 

 Rangifer caribou, 609 



tarandus, 609 

 Raptores, 548 

 Rasores, 546 

 Rat, black, 586 



blind, 586 

 Ratitse, 538, 557 

 Rattlesnake, 499 

 Ray, 421 



sting, 424 

 Reasoning power of animals, 



680 



Redia of trematodes, 108, 109 

 Reefs, coral, formation of, 87 

 Reindeer, 609 

 Renilla reniformis, 86 

 Reproduction, 13, 643 

 Reproduction of lost parts in 

 Hydrozoa, 53 



Planarians, 102 



Batrachia, 481 

 Reptilia, characters of, 488, 517 



development of, 495 



skeleton of, 489 



Reptilia, sexual differences of, 



494 



teeth of, 491, 499 

 viviparous. 495, 497 



Resemblance, protective, 487, 675 



Respiration, organs of, 637 



Rhabdoco-la, 103 



Rhabdopleura mirabilis, 145 



Rhamphorynclms, 517 



Rhea Americana, 539 



Rhiuichthys atronasus, 453 



Rhizocriuus lofotensis, 184 



Rhizopoda, 22, 27 



Rhombogeue, 99 



Rhopalodina, 214 



Rhynchocephalia, 511, 517 



Rhyncodesmus sylvaticus. 103 



Rhytina Stelleri, 596 



Robin, 556 



Rodeutia, 582, 629 



Root barnacle, 2 



Rotalia, 25 



Rotatoria, development of, 136 

 structure of, 134, 138 



Rotifera, 134 



Rotifer vulgaris, 134 



Rugose corals, 84 



Rurninantia, 605 



SACCAT/E, 95 

 Sacculina, 276 

 Sagitta, 132 

 Salamander, 479 

 Saleuoglyph snakes, 499 

 Salmo fontinalis, 452 



qtiinnat, 451 



salar, 452 

 Salmon, 451 

 Salpa, development of, 401, 404 



structure of, 391, 398 



spinosa, 401 



Sarcorhamphus gryphus, 548 

 Sauropterygia, 513, 517 

 Sauropsida, 518 



