INDEX OF SUBJECTS?. 



587 



Ocellar markings, 288, 449 



Lepidoptera, 288 ; Eaiida 1 , 



302 ; Birds, 449 

 Odontohibis stevensii, extra antenna 3 , 518, 



557 



Oligochseta, axial duplicity, 503 ; ge- 

 nerative organs, 159; segmentation, 

 156 



Ommatophoca rosaii, premolars, 237 

 Onitia bison, division of pronotum, 455 

 Operculum, double in Diicciinim, 457 

 Ophiacantha <nioin<il(i, normally arms, 



not known to divide, 433 

 Oplddctis, fission, 433 

 Uphibulits, double monster, 561 

 Ophidia, vertebrae, 103, 123 

 (tyhidiuster cribrarius, fission, 433 

 Ophiocoina pitmild, young with 6 arms, 



adults with 5 arms, 433 

 Oplriothcld isidicula, fission, 433 

 Ophiuroidea, variation iniiumber of arms, 



447; fission, 433 



Opisthocomus, brachial plexus, 130 

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

 teeth, 200 ; extra digit, 349 ; extra 

 mamma, 188 

 Organic Stability, 36 

 <) rtUi.ti a lie vis, extra wing, 284 

 (.tryctcs nasicornig, division of pronotum, 



455; extra let; s, 512 

 Uxmoderma eremita, double (?) leg, 547 

 Oturiu cinerea, molars, 240 



jubdta, premolars, 240, 243 

 ui'sina, premolars, 239, 241 

 Otocyon, teeth, 220, 221 

 Ouakaria, 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 Antaeus, variation in number, 



152; in Earthworms, 167 

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

 dactylism, 374-381 ; syndactylisin, 

 384-387 ; syiidactylism together with 

 development of digits II or V, 385 ; 

 with duplicity of II and V, 386 ; cer- 

 vical auricles and fistula? unknown, 

 180 



Pachydrilus sphagnetorum, dimorphic in 

 respect of position of generative open- 

 ings, 165, 168 

 Painted Lady butterfly, colour-variation, 



49 



Palaornis torquatus, colour-variation, 43 

 Palamntcus burncengis, division of poison- 

 spine, 457 

 Paliiiurnx ijenicillatun, eye developed as 



antenna, 150 



rulfiaris, extra legs, 527 ; extra 

 antennae, 538 



Palloptt-rd ustulatri, abnormal growth 



from thorax, 285 

 Palpi, paired extra, in Insects, 524 



supposed double, 551 

 Pangenesi.s, 75 

 " Panmixia," 573 

 Papacer nitdiraidi', colour-variation, 46; 



pigment of, 47, 72 

 Parakeet, colour- variation, 43 

 Pararge megccra, eye-spots, 289, 300 

 " Parhomology," 133 

 Pariah dog, teeth, 221 

 Parnassius, ocelli, 292 

 Parra, feathers, 55 

 Pagimachus punctulatux, double (?) leg. 



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 eye- 

 spots in, 26 ; variation of, 299 

 Pecora, polydactylism, 37-5 

 Pec ten, double eyes, 280 

 Pedicellarise, Meristic Vaiiation of, 429 

 Pelamis bicolor, imperfect division of 



vertebra?, 105 ; axial duplicity, 561 

 Pelecanus, brachial plexus, 130 

 Pelobates fuscus, extra spiracle, 465 

 Penis, supernumerary, in Hirudo, 166; 



in Aiilastoma, 167 

 Pentacrinui* mulleri, increase in number 



of radial joints, 

 4-rayed specimens, 

 dubiits, dumorti- 

 cri, jurenxin, sub- 

 sitlcatus, 436 

 6-rayed specimens, 



jui'entiiis, 437 



Penthina salicclla, extra wing, 285 

 Peranielidas, digits of pes, 313 

 Periciueta, variation in number of sper- 

 mathecee, I65;forbesi, liili/midorti, 165 

 Pericrocotus flammeus, colour-variation, 



46 

 Perionyx, generative organs, excavatus, 



163, 167, 16s 

 griincicaldi, 164 



Perijjatus, variation in number of seg- 

 ments, 84, 91, 94 

 Pctdiirus, premolars, 255 

 PHALANGEBID/E, incisors, 248; premo- 

 lars, 248255 



Phalangtr maculutus, incisors, 248 ; pre- 

 molars, 253; females spot- 

 ted in Waigiu, 254 

 orientalis, incisors, 248, 250; 



premolars, 250 

 oniatus, first premolar two- 

 rooted as variation. 254 

 iir.s(/i.s, first premolar nor- 

 mally two-rooted, 254 



