INDEX 



727 



patina (Pterodina), 239. 

 paulum (Orygmatoboth- 



rium), 196. 

 Pauropoda, 466. 

 Pauropodidae, 466. 

 Pauropus, 467. 

 pavo (Calocalanus), 341. 

 pavo (Loligopsis), 612. 

 Paxillae, 623. 

 peachi (Mucronella), 258. 

 Peacock squid, 612. 

 pealei (Loligo), 609. 

 Pear leaf blister, 438. 

 Pearl oyster, 573. 

 Pearls, 564. 

 Pearly nautilus, 606. 

 pecten, 575. 

 Pectinaria, 297. 

 Pectinatella, 264. 

 Pectinibranchiata, 534. 

 Pectines, 405. 

 Pectinidae, 575. 

 pectorale (Gonium), 37. 

 Pedal disc, 132. 

 Pedalia, 128. 

 Pedicellariae, 623. 

 Pedicellina, 248. 

 Pedicellinidae, 248. 

 pediculus (Polyphemus), 



338. 



pediculus (Trichodina), 65. 

 pediculus (Trivia), 550. 

 Pedipalp, 402, 414. 

 Pedipalpi, 406. 

 Peduncle, in Brachiopoda, 



265 ; in Crustacea, 363. 

 Pegea, 662. 

 Pelagia, 129. 



pelagica (Floscularia), 233. 

 pelagica (Halocypris), 358. 

 pelagica (Nereis), 288. 

 pelagica (Physalia), 124. 

 pelagica (Scyllsea), 500. 

 pelagica (Thalassicolla), 



24. 



Pelagiidae, 129. 

 Pelecypoda, 563. 

 Pelia,, 396. 



pellionella (Oxytricha), 62. 

 pellucida (Cuspidaria), 602. 

 pellucida (Carinella), 206. 

 pellucida (Molgula), 665. 

 pellucidum (Amaroucium), 



670. 

 pellucidum (Menoidium), 



33. 

 pellucidum (Synccelidium), 



168. 

 pellucidus (Cambarus), 



392. 

 pellucidus (Chaetogaster), 



310. 



Pelomyxa, 15. 

 Peltogaster, 363. 

 Pen (in Cephalopoda), 608. 

 pendula (Corymorpha), 



101. 



Peneidae, 388. 

 Peneus, 388. 

 Pennaria, 101. 

 Pennariidae, 100. 

 Pennatula, 137. 

 Pennatulacea, 137. 

 Pennatulidae, 137. 

 pennsylvanica (Tubella), 



82. 

 pennsylvanicus 



(Chthonius), 410. 

 pennsylvanicus 



( Para julus), 470. 

 Pentaceros, 628. 

 Pentacrinidae, 621. 

 Pentastomum, 457. 

 pentodon (Bifldaria), 516. 

 Pepper coral, 93. 

 Peranema, 33. 

 Peranemidae, 33. 

 Peretreme, 444. 

 perfoliata 



(Anoplocephala), 198. 

 Perforata, 146. 

 Perforina, 21. 

 pergamentaceus 



(Chaetopterus),293. 

 Peribranchial space, 665. 

 Peridinidae, 40. 

 Peridinium, 40. 

 Perigonimus, 97. 

 Periopod, 363. 

 Periostracum, 479, 564. 

 Peripatidae, 463. 

 Peripatus, 463. 

 Peripharyngeal band, 656. 

 Periphylla, 127. 

 Periphyllidae, 127. 

 Periproct, 638. 

 Perisarc, 91. 

 Peristomal gills, 640. 

 Peristorne, in echninoderms, 



623, 638; of snail shell, 



506. 



Peristomium, 277. 

 Peritrichida, 64. 

 Periwinkles, 540. 

 Peronia, 121. 

 peroni (Atlanta), 552. 

 peroni (Spirula), 607. 

 Perophora, 668. 

 Persa, 120. 



persicus (Argas),445. 

 perspectiva ( Py ramidula ) , 



522. 

 perspectivus (Sigaretus), 



538. 



pertusa (Lepralia), 258. 

 perversa (Triforis), 546. 

 perversum (Busycon), 559. 

 Petaloid area, 639. 

 Petasidae, 118. 

 Petricola, 592. 

 Petricolidae, 592. 

 pexata (Area), 571. 

 Phacus, 32. 

 Phagocata, 167. 

 Phalangiida, 410. 

 Phalangiidae, 411. 

 phalangioides (Pholcus) 



420. 



Phalangium, 412. 

 phaleratus (Cyclops), 347. 

 Phanerozonia, 626. 

 phantapus (Psolus), 650. 

 pharygiana (Hippasteria), 



627. 



Phascolion, 275. 

 Phascolosoma, 275. 

 Phidippus, 434. 

 philadelphicus 



(Bdellodrilus), 306. 

 Philine, 498. 

 Philinidae, 497. 

 Philodina, 235. 

 Philodinidae, 235. 

 Philodromus, 428. 

 Philomycidae, 528. 

 Philomycus, 528. 

 Philoscia, 379. 

 Phlegmacera, 413. 

 phcenicopterus 



(Trachelocerca) , 52. 

 Pholadacea, 597. 

 Pholadidae, 597. 

 pholadiformis 



(Petricola), 592. 

 Pholas, 597. 

 Pholcidae, 420. 

 Pholcus, 420. 

 Pholoe, 285. 

 Phonorhynchus, 163. 

 Phoreiobothrium, 196. 

 Phormosoma, 642. 

 Phoronidea, 270. 

 Phoronis, 270. 

 phosphorea (Idothea), 376. 

 phosphoreus (Polycirrus), 



296. 



Photidae, 370. 

 Phragmocone, 607. 

 Phragmophora, 607. 

 Phronima, 366. 

 Phronimidae, 366. 

 Phrurolithus, 429. 

 phrygiana (Linyphia), 423. 

 Phryxus, 381. 

 Phyla of Animal Kingdom, 



Key to, 10. 



