INDEX <)F sriUKcTs. 



.W 



Ocellar markings, 288, 449 



Lepidoptera, 288 ; Raiida , 

 302 ; Birds, 449 

 Odontolabis stevensii, extra antennae, ">18, 



557 

 Oligochseta, axial duplicity, 503 ; ge- 

 nerative organs, 159; segmentation, 

 156 

 Ommatophoca rossii, premolars, 237 

 Onitis bison, division of pronotum, 455 

 Operculum, double in Buccinum, 457 

 Ophiacantha anomala, normally arms, 



not known to divide, 433 

 Opkiactis, fission, 433 

 Ophibolus, double monster, 561 

 Ophidia, vertebra, 103, 123 

 Ophidiaster cribrarius, fission, 433 

 (Jphiocoma pumila, young with 6 arms, 



adults witb 5 arms, 433 

 Ophiothela isidicola, fission, 433 

 Ophiuroidea, variation in number of arms, 



447; fission, 433 

 Opisthocomus, brachial plexus, 130 

 Orang, vertebrae, 118; spinal nerves, 13'J ; 

 teeth, 200 ; extra digit, 349 ; extra 

 mamma, 188 

 Organic Stability, 36 

 OrtUosia Icevis, extra wing, 284 

 Oryctes nasicornis, division of pronotum, 



455; extra legs, 512 

 Osmoderma eremita, double (?) leg, 547 

 Otaria cinerea, molars, 240 



jubata, premolars, 240, 243 

 ursina, premolars, 239, 241 

 Otocyon, teeth, 220, 221 

 Ouaharia, teeth, 208 

 Ovaries, variations in number and posi- 

 tion in Earthworms, 160, 162 

 not always correlated with 

 variations in oviducts, 167 

 Ovary, right, developing in Fowl, 466 

 Oviduct, right, case of, in Fowl, 466 

 Oviducts of Astacu*, variation in number, 



152; in Earthworms, 167 

 Ox, incisors, 245; molar, 246; poly- 

 dactylism, 374-381 ; syndactylism, 

 384-387; syndactylism together with 

 development of digits II or V, 385 ; 

 with duplicity of II and V, 386; cer- 

 vical auricles and fistula? unknown, 

 180 



Pachydrilus sphagnetprum, dimorphic in 

 respect of position of generative open- 

 ings, 165, 168 

 Painted Lady butterflv, colour-variation, 



49 

 Palaornis torquatus, colour-variation, li-i 

 Palamnaus borneensis, division of poison- 

 spine, 457 

 Palinurus penicillatus, eye developed as 



antenna, 150 

 vulgaris, extra legs, 527 ; extra 

 antennae, 538 



Palloptera ustulata, abnormal growth 



from thorax, 285 

 Palpi, paired extra, in Insects, 524 



supposed doable, 551 

 Pangenesis, 75 

 " Panmixia," 573 

 Papaver nudicaule, colour-variation, 16; 



pigment of, 17, 72 

 Parakeet, colour- variation, 13 

 Pararge megara, eye-spots, 289, 800 

 " Parhomology," 133 

 Pariah dog. teeth, 221 

 Parnassius, ocelli. 292 

 Parra, feathers, 55 

 Pasimachus punctulatus, double (?) . 



547 

 Patella, extra tentacle and eye, 279 

 Pattern, universal presence of, in organ- 

 isms, 19-21; difficulties arising from, 

 21 

 Peach, discontinuous variation in. 59 

 Peacock, ocelli, 449 

 Peacock butterfly, repetition of i 



spots in, 26; variation of, 299 

 Pecora, polydactylism, 'M'> 

 Pecten, double eye-, 280 

 Pedicellariae, Meristio Vaiiatiou of, 4 J '. * 

 Pelamis bicolor, imperfect division of 



vertebrae, 105; axial duplicity, 561 

 Pelecanus, brachial plexus, I'M 

 Pelobates fuscus, extra spiracle, 165 

 Penis, supernumerary, in Hirudo, 166; 



in Aulastoma, 167 

 Pentacrinus miilleri, increase in nun: 



of radial join 

 4-rayed >p< cim< 

 dubius, dumorti- 

 i r/, jurensis, tub- 

 tulcatus, 436 

 6-rayed specimens, 

 jurensis, I 

 Penthina salicella, extra wing, 285 

 Peramelidee, digits of pes, 313 

 Perichata, variation in number of -i 



mathecse, 165 \forbesi, hilgendorfi, 165 

 PeHcrocotus Hammeus, oolour-vanati 



16 

 Perionyx, generative organ watus, 



163, 167, L68 

 griim waldi, 164 

 l\ ripatus, variation in nnmbei i 



ments, 84, 91, 94 

 l\ taurus, premolars, 26*5 

 Puai.ani.i Kin.v.. incisors, 248; premo 



Lars, 248 256 

 Phalanger maculatus, incisors, 248; | 



molars, 258; females Bpot- 

 t. i in Waigiu, 2 

 orientalis, incisors, 248, 250; 



premolars, 250 

 ornatus, first pn molar two 



root* d as \;n tation, 25 i 

 ursinus, first premolar nor- 

 mallv two-root* d. 254 



