Index 



Organs of touch, 169 

 Oribatid mites, 91 

 Oribatidce, 91 

 Oribatoidea, 85, 86, 91 

 Ortholasma, 7g 



pic ti pes, 79 



rugosa, 80 

 Ostia of the heart, 149, 150 

 Ovaries, 158, 159 

 Oviducts, 158, 159 

 Ovipositor, 132 

 Oxyopes, 658, 6SQ 



cinerea, 660 



rufipes,''66o 



sallicus, 660 



scalaris, 660 

 Oxyopida?. 657; table, 658 

 Oxyplila. 524 330 



conspurcala, 331 



Packygnalha, no, 159, 406, 407 



brevis, 408 

 Pachylomerus, 235, 236 



audouinii, 236 



theveneti, 237 



turns, 237 

 Paired claws, 124 

 Pairing of spiders. 207 

 Palaeostracha, 7, 8 

 Palmula, 124 

 Palpal organ, 158 

 Palpatorcs, 65 

 Palpigradi, 13 

 Palpus, 10;;, 106, 121 

 Paracymbium, 112 

 Pardosa, 167, 621, 630; table, 651 



albopalclla. 654 



annulate., 654 



emerloni. 651, 653, 657 



grxnlandica, 651, 653. 656 



lapidicina, 165, 651, 653, 635 



milvina, 652, 653 



minima, 634 



modica, 651, 636 



modica brunnea, 637 



nigropalpis, 63$ 



Pallida, 657 



saxatilis, 652, 633 



sternalis. 651, 653, 633 



xerampelina, 651, 636 

 Parmula, 132, 375 

 Pars cephalica, 95 

 Pars pendula, 109, 120 

 Pars thoracica, 95 

 Patella, 104 

 Pear-leaf blister, 93 

 Peckhamia, 664, 669 



americana, 700 



picata, 699 



scnrpiona, 699 

 Pedanostethus, 363 



riparius, 363 

 Pedicel. 127 

 Pectines, 22 

 Pediculoides, 92 

 Pedanostethus, 336 

 Pedipalpida, 13, 16 

 Pedipalpi, 16 

 Pedipalps. n, 82, 104 

 Pellenes, 669, 688 



agilis. 68 Q 



borealis, 689 



coronatus, 689, 69^ 



hoyi. 689. 691 



peregrinus. 689. 602 



splendens, 689. 602 

 Pericardial cavity, 150, 151 

 Pericardium, 150, 151 

 Peritoneal layer, 155 

 Petiole, 109 



Peucctia. 638 



viridans, 638 

 Phalangida, 13, 53 

 Phalangides, 53 

 Phalangiidae, 65 

 Phalangita, S3 

 Phalangium, 66, 6g 



cinereum, 6g 



longipalpis, 6q 

 Phalangodes, 61, 64 



armala, 64 

 Phalangodidae. 59, 61 

 Phanetta, 375, 377 



sublerranea, 377 

 Pharyngeal gland, 154 

 Pharynx, 153 

 Phidippus, 668, 680, 684 



audax, 681 



claras, 681, 683 



insolens, 680, 681, 683 



mineatus, 681, 684 



mystaceus, 681, 684 



purpuratus, 681, 683 



variegatus, 681, 682 



whitmanii. 6S0, 681, 682 

 Philodrominae. 523, 541; table, 542 

 Philodromoides. 542, 545 



prataritz, 545 

 Philodromus, 542, 543 



minulus, 344 



ornatus, 343 



pernix, 344 

 Phlegmacera, 77 



bryantii, 78 



cavicolens, 78 



occidentale, 78 

 Phlegra. 666, 688 



leopardus, 688 

 Pholcida?, 325; table, 326 

 Pholcids, 325 

 Pholcus, 167, 326, 328 



phalangioides, 328 

 Phohammateae, 336, 367 

 Pholcophnra, 327, 32 g 



americana, 32g 

 Photographing, methods of, 180, 181 

 Phrurolithus, 571, 376 



alarius, 376 

 Phrynidae, 19 

 Physocyclus, 327, 32Q 



glabosus, 329 

 Pigment cells, 165 

 Pirata, 621, 631, 641; table, 642 



aspirans, 642, 643 



febriculosus, 643. 645 



humicolus. 642, 644 



insularis, 643, 643 



marxi. 642, 644 



minulus, 642, 643 



mantanus, 131, 642, 644 



piraticus, 643 



pira'icus utahcnsis, 642 

 Pisaurid type of palpus. 118 

 Pisaurida?, 598; table, 605 

 Pisaurina, 605, 607 



mira, sg9, 607 

 Plagiostethi, 58, 64 

 Plagula. 127 

 Plantula, 124 

 Platform spider, the, 398 

 Plectana, 436 

 Plectreurys, 303, 304 



castanea, 304 



trislis. 304 

 Plesiometci, 4 16, 424 



argyra. 424 

 Plexippus. 668. (5?.; 



paykullii, 693 

 Pmcuochroa, 311, 315 



minuta, 316 



718 



