INDEX. 



Ill 



Pupa of iiis.'ols, 308 



of the barnacle, 296 

 Purpura lapillus, 243 

 Pycnogouidae, 339 

 Pycnopodia. 1]5 

 Pygidium, 304 

 Pyrosoma gigas, 392 

 Pythonomorpba, 500, 517 



QuoHOG,. 229 



Raccoon, 615 

 Radiolaria, 26, 27 

 Rail, 544 

 Raja eglanteria, 422 



erinacea, 421 



fluviatilis. 434 



Isevis, 421 

 Rana, 487 



baleciiia, 470 

 Rangifer caribou, 609 



tarandus, 609 

 Raptores, 548 

 Rasores, 546 

 Rat, blacli, 586 



blind, 586 

 Ratitse, 538, 557 

 Rattlesnake, 499 

 Ray, 431 



sting, 434 

 Reasoning power of animals, 



680 

 Redia of trematodes, 150, 151 

 Reefs, coral, formation of, 87 

 Reindeer, 609 

 Renilla reniformis, 86 

 Reproduction, 13, 643 

 Reproduction of lost parts in 

 Hydrozoa, 53 



Planarians, 144 



Batrachia, 481 

 Reptilia, characters of, 488, 517 



development of, 495 



skeleton of, 489 



Reptilia, sexual differences of, 

 494 

 teeili of, 4)1, 499 

 viviparous. 495, 497 



Resemblance, protective. 487, 675 



Respiration, organs of, 687 



Rhahdocoela, 145 



Rhabdopleiira mirabilis, 187 



Rhamphorynchus, 517 



Rhea Americana, 539 



Rhinlchlhys atronasus, 453 



Rhizocrlnus lofntensis, 103 



Rhiznpoda, 32, 27 



Rhombogene, 141 



Rhnpalodina, 133 



Rhynchocephalla, 511, 517 



Rhyncodesmus sylvaticus. 145 



Rhytina Stelleri, 596 



Robin, 556 



Rodeulia, 582, 629 



Root barnacle, 2 



Rotalia, 25 



Rotatoria, development of, 178 

 structure of, 176, 180 



Rotifera. 176 



Rotifer vulgaris, 176 



Rugose corals, 84 



Riirainantia, 605 



Saccate, 95 

 Sacculina, 376 

 Sagitta, 174 

 Salamander, 479 

 Salenoglyph snakes, 499 

 Salmo fontinalis, 453 



quinnat, 451 



salar, 453 

 Salmon, 451 

 Salpa, developrafnt of, 401, 404 



structure of, 891, 398 



spinosa, 401 

 Sarcorhamphus gryphus, 548 

 Sauropterygia, 513, 517 

 Sauropsida, 518 



