Index. 



643 



ddipoda xnnthoptera, 4C9. 

 Oleacina bullata, 139. 



Ciibensis, 175. 



truiicata, 141. 



Vaiinxeineiisis, 141. 



Oleacinidte, 154. 

 0;ivanites, 222. 

 Omphalina, 106, 1.52. 



cuprea, 106, 152. 



Oiicliidiacea, 153. 

 Onchidiidoe, 154. 

 Opisophthalma, 154, 184. 

 Opomala, 454. 



brachyptera, 454. 



Orbiilina universa, 350. 

 Orebeliinuin, 452. 



agile, 453. 



concmiiiim, 452. 



gltibenimiiin, 453. 



grticile, 451. 



longipeniie, 453. 



vulgare, 452. 



Ordway, Albert^ Monograph of the 

 Genus Callinectes, 568. 



Ortlii?, 221. 



Burlingtonensis, 219, 233. 



iiueqiuilis, 219, 233. 



Mifcheliiia, 219, 233. 



Swallowi, 233. 



Thiemei, 219, 231. 



Orthoceras, 221. 



Orthoptera, Catalogue of New England 

 species, 409; Materials for a Mono- 

 graph of the North American Spe- 

 cies, 409; Tabic to find the New Eng- 

 land Genera, 413. 



Packard, A. S., Jr. On Synthetic Tj'pes 



in Insei-ts, 591. 

 Paleontology of l?urlington, Iowa, 209. 

 Para River, J^licroscopical Organisms 



from, 329. 

 Partula Otaheitana, 152. 

 Pateriocrinus calycukis, 235. 



ihombiferus, 235. 



Pecten, 221, 223. 

 Peltigera caiiina, 625. 

 Pentremites, 222, 223; Summit Struc- 

 ture of, 481. 



conoideus, 481. 



elongatus, 235, 488. 



lineatus, 488. 



nielo, 235. 



Norwoodii, 235, 483, 491. 



■ sirius, 486. 



stelldormis, 235, 486. 



sulcatus, 481. 



Periplaneta, 416. 



atnericana, 416. 



Persoonia oviformis, 507. 

 Pezotettix, 464, 619. 

 borealis, 464. 



Pezotettix glacialis, 619, 630. 

 Phalangopsis, 434. 

 gracilipes, 439. 



lapidicola, 434, 435. 



macnlata, 434. 



robustus, 442. 



scabripes, 436. 



Phaneroptera, 448. * 



angustifolia, 448. 



curvicauda, 448. 



Phasmida, 423. 



Phiiiipsia, 221, 222. 

 Philomycus, 30. 



Carolinensis, 30. 



dorsalis, 31. 



flexuolaris, 32. 



fuscus, 32. 



oxyurus, 32. 



qu'idrilus, 32. 



Pholadomya subelongata, 508. • 

 Phragnioceras, 221. 

 Phylloptera, 444. 



— '■■ caudata, 445. 



ctirvicauda, 447. 



oblongifolia, 444, 445. 



retinervis, 446. 



rotundifolia, 445. 



Pliyllopterus myrtifolius, 448. 

 Pinnularia dilata, 337, 347. 



iiiterrupta, 347, 349. 



nobilis, 337, 347. 



Planera dubia, 507, 508. 



Ungeri, 508. 



Planorbis, 63. 



ghins. 141. 



Platamodes, 417. 



pennsylvanica, 417. 



— unicolor, 417. 



Pbitanu*, 507. 

 Platvceras, 221. 



Platvcrinus, 222, 223, 285, 489, 491, 492, 

 493, 490, 497, 502. 



Americanus, 235. 



brevinodus, 28b. 



Burliiigtonensis, 235,504. 



canaliculatus, 235. 



cavus, 235. 



— clytis, 285. 



— corrugatus, 235. 



— discoideus, 235. 



— elegans, 285. 



— excavatus, 286. 



— incomplus, 503. 



— nodoorachiatus, 235. 



— nodosus, 235. 



— nucleiforniis, 235. 



— pileiformis, 235. 



— planus, 235. 



— poeilHformls, 235. 



— sculptus, 235. 



— Slmmardianus, 235. 



— striobrachiatus, 287. 



