632 



BULLETIN 15 8, UNITED STATES NATIONAL MUSEUM 



Neocalanus, genus, 27, 540. 



gracilis, 28. 

 Neocyclops, 588. 

 Neopontella, 558. 

 Neopontius, 585. 

 Neoscolecithrix, 55L 

 Nereicola, 602, 603. 

 Nesippus, genus, 438, 607, 609. 



alatus, 438. 

 Nicothoe, 588. 

 Nitocra, genus, 240, 579, 580. 



chelifer, 242. 



spinipes, 240. 



tau, 245. 



typica, 241, 

 Nitocrameira, 577. 

 Nitocrella, 565. 

 Nogaus, 433. 

 Norion, 609. 

 Normanella, 568, 

 Notodelphyidae, 386. 

 Notodelphyoida, 10, 385, 598 (key) 

 Notodelphyopsis, 599. 

 Notodelphys, genus, 386, 598. 



agilis, 387. 

 Notopterophoroides, 601. 

 Notopterophorus, 602. 



Obesiella, 592. 

 Oestrella, 620. 

 Oithona, genus, 311, 591. 



brevicornis, 315. 



nana, 316 



plumifera, 311. 



similis, 314. 



spinirostris, 312. 

 Oithonidae, 311. 

 Oithonina, genus, 316, 590. 



nana, 316. 

 Oithonopsis, 596. 

 Ommatokoita, 617. 

 Oncaea, genus, 350, 590. 



borealis, 351. 



conifera, 350. 



minuta, 352. 



venusta, 353. 

 Oncaeidae, 350, 

 Onceola, 593. 

 Onchocalanus, 550. 

 Ooneides, 603. 

 Oothrix, 553. 

 Ophioseides, 600, 601. 

 Ophthalmopachus, 586, 591, 596. 

 Opimia, 620. 

 Oralien, genus, 494, 614, 616. 



triglae, 495. 

 Orthagoriscicola, genus, 443, 608. 



muricata, 443. 

 Orthocyclops, genus, 329, 589. 



modestus, 329. 

 Orthopsyllus, 565. 

 Osphranticum, 542. 

 Oxycalanus, 549. 



Pachos, 586. 



Pachycyclops annulicornis, 335. 



bistriatus, 336. 



signatus, 333. 



Pachyptilus, 545. 

 Pachypygus, 598. 

 Paeon, genus, 524, 620, 622. 



elongatus, 524. 

 Panaietis, 591. 

 Pandaridae, 424. 

 Pandarus, genus, 432, 607, 609. 



bicolor, 436. 



cranchii, 435. 



sinuatus, 437. 



smithii, 434. 

 Paraboeckella, 542. 

 Parabrachiella, genus, 519, 618, 619. 



rostrata, 519. 

 Parabroteas, 542. 

 Paracalanidae, 37. 

 Paracalanus, genus, .37, 548. 



parvus, 38. 

 Paracartia, 559. 

 Paracyclops, genus, 342, 588. 



fimbriatus, 342. 

 Paradiaptomus, 547. 

 Paraeuchaeta, genus, 65, 556, 557. 



barbata, 67. 



norvegica, 65. 

 Paralabidocera, 559. 

 Paralebion, 606. 

 Paraleptastacus, genus, 248, 568, 569. 



brevicaudatus, 249. 



katamensis, 251. 

 Paralichomolgus, 593. 

 Paralteutha, 572. 

 Paramesochra, 562, 567. 

 Parametis, 538. 

 Paramisophria, 543. 

 Paranotodelphys, 598, 599. 

 Paranthessius, 587. 

 Parapandarus, genus, 439, 607, 609. 



nodosus, 440. 

 Parapeltidium 575. 

 Parapetalus, 605. 

 Parapontella, 558. 

 Parartotrogus, 597. 

 Parastenhelia, 572, 573. 

 Parastenocaris, genus, 289, 561. 



brevipes, 289. 

 Parastephos, 554. 

 Parategastes, genus, 194, 569. 



sphaericus, 194. 

 Parathalestris, 580. 

 Paraugaptilus, 545, 546. 

 Parawestwoodia, 570. 

 Paroithona, 596. 

 Paurocope, 597. 

 Peltidiidae, 192. 

 Peltidium, 571, 572. 

 Peltthestris. 573. 

 Peniculisa, 610. 

 Peniculus, genus, 479, 612. 



clavatus, 479. 

 Pennaiula filosa, 490. 

 Pennella, genus, 489, 611. 



filosa, 490. 



instructa, 491. 



orthagorisci, 492. 



sultana, 487. 

 Pennellidae, 489. 



