INDEX. 



537 



parva, Allolobophora, 7:}. 



Acutalis, 42'.). 

 parvus, Unio. 154. 

 patnielis, Ceresa, 405. 

 Peetinatella magniflca, 182. 



eggs of, 1S3. 

 pectoralis, Gargara, 410. 

 Peeper. .340. 

 Peery, 3 It). 

 Pennant, 34t5. 

 pennsylvanica, Cistudo, 238. 



Testudo, 238. 

 pennsylvanicuni, Tinosternon, 238. 



Cinosternum, 238. 



Kinosternon, 23s. 

 Pentatomidfe as food of toads, 339. 

 Perca flavesceus, 137. 

 Perch, 137. 



Common Ringed, 137. 



Log, 138. 



White, 13(). 

 PercidiB, 137. 



perfoliatum, Silphium, l'.t2, l',t3, 1!)5. 

 Perichseta. t)2, 74. 

 Pericha^tidse, 74. 

 Perla, 381. 



permutata, Aphrophora, 492. 

 Perrier, Edniond, W, 74. 



on the genus Acauthodrilus, 

 61, 62. 



Recherches pour servir I'his- 

 toire des Lumbriciens ter- 

 restres, cited, 70. 

 Petromyzon castaneus, 148. 

 Petromyzontidae. 148. 

 Phacusa. 410, 479, 481. 



flavomarginata, 410. 



munda, 393 (See Errata, 479), 

 480. 



nlgripes, 411 (See Errata, 480). 



palle.scens, 410. 

 Phalangidje, 79. 

 Phalangiinte, 80, 81. 



of Illinois, A Descriptive Cata- 

 logue of the, 77 97. 



of North America, A Partial 

 Bibliography of the, 99-lOt). 



Phalangiina- of N. A., etc. — ConVd. 

 general articles on, 99. 

 reference to species of, 100 

 -105. 

 Phalangium, 79, 81, 92. 



calcar, S)0. 



cinereum, 93. 



dorsatum, 83. 



formosum, 91. 



nigropalpi, 87. 



pictum, 95. 



verrucosum, 88. 



vittatum, 85. 

 Pharyngodon, 339. 

 Phenacobius teretulus, 142. 

 Philadelphia Academy of Natural 

 Sciences, Journal of the. 

 cited, 79. 



Proceedings of the, cited, 342. 

 Philsenus, 32, 485, 494. 



abjectus, 496. 



bilineatus, 496. 



lineatus, 494, 495, 496. 



saratogensis, 493. 



spumarius, 496, 498. 

 Phlegethontius Carolina, parasite 

 of, 3. 



celeus, parasite of, 3. 

 phoxocephalum, Etheostoma, 



138. 

 Phreoryctidae, On an American 



Earthworm of the Family, 107 



-117. See under Earthworm. 

 Phreoryctes, 107. 



emissarius, 108. 



Gregarinidse infesting, 114. 



filiformis, 1(17. 



menkeanus, 108. 



smithii, 107. 

 Phyllophilophis, 263, 283. 



aestivus, 283, 284. 

 food of, 284. 

 Phyllotropis, 465. 

 phymatodes. Cyperus, 186, 235. 

 Physa, 144. 



ancillaria, 150. 



heterostropha, 150. 



