1584 



INDEX. 



MyrmeleontidcB, 598. 

 Mysis, 560, 561. 

 Mystropkora, 661. 

 Mytilacea, 702. 

 Mytilarca, 708. 

 Mytilidce, 710. 

 Mytilus, 710. 

 Myxospongice, 161. 

 Myzostoma, 469. 

 Myzostomida, 469. 



Nanocrinus, 433, 434. 



Na?-ica, 779. 



Nassa, 793. 



Nassellaria, 145, 146. 



Natica, 779. 



Naticella, 779. 



Naticidce, 778. 



Naticopsis, 778. 



NautilidcB, 844. 



Nautiloidea, 833, 834. 



Nautilus, 826, 827, 845, 846. 



Necera, 743. 



Neb alia, 510, 512. 



Nebaliadce, 512, 513. 



Nebaliopsis, 512. 



Necrocarcinus, 567. 



Necrogammarus , 557. 



Necroscilla, 562. 



Nectotelson, 561. 



Nematoda, 469. 



Nemerteans, 480. 



Ne?nertites, 480. 



Neobolus, 651, 652. 



Neocrinoidea, 423, 424, 438, 445. 



Neolimulus, 549, 550. 



Neorinopsis, 599. 



Neoscorpii, 579. 



Nereidavus, 480. 



Nereites, 480, 484, 485. 



Nerinea, 787, 788. 



Nerineidce, 787. 



Nerita, 777. 



NeritidcB, 776. 



Neritina, 777. 



Neritodomus, 777. 



Neritoma, 777. 



Neritopsidce, 777. 



Neritopsis, 777. 



Neuroptera, 597. 



Nidulites, 187, 188, 1564. 



Nileus, 535. 



iWofo, 534. 



.Afcra, 784. 



Nodosaria, 131. 



Nodosinella, 129. 



Nonionina, 134. 



Nothoceras, 847. 



Ntibecularia, 124. 



Nucleoblastidce , 463. 



Nucleobranchiata, 802. 



Nucleospira, 667. 



Nucula, 71$, 716. 



Nuculana, 717. 



Nuculanidce, 717. 



Nuculidce, 714. 



Nuculina, 714. 



Nudibranchiate Gastropods, 756, 758, 



800. 

 Nulliporen-kalk, 25. 

 Nullipores, 24, 25, 1496. 

 Nummulina, 134, 135. 

 Nummulinidce, 123, 133. 

 Nummulitic limestone, 120, 136. 



Obolella, 651. 



Obolidce, 650. 



Obolus, 651. 



Oceanic Hydrozoa, 195. 



Octactinellidce, 177. 



Octilltznus , 536. 



Octopod Cephalopods, 873, 881. 



Oculina, 267. 



Oculinidce, 267. 



Oculospongia, 180. 



Odontomaria, 766. 



Odostomia, 784. 



C&^'a, 534- 



Oldhamia, 205. 



Oldhamina, 678. 



Olenellus, 529. 



OlenidcB, 528. 



Olenus, 530, 531. 



Oligochceta, 470. 



Oligoporus, 276. 



Oliva, 798. 



Olive I la, 798. 



OlividcF, 798. 



Ollacrinus, 429. 



Omphyma, 282, 288. 



Oniscia, 792. 



Oniscidce, 559. 



Oniscus, 559. 



Onychaster, 402. 



Onychophora, 582. 



Oolitic structure of limestones, 28. 



Operculina, 137. 



Ophidioceras, 844. 



phi let a, 771. 



Ophioderma, 403. 



Ophioglypha, 400, 403. 



Ophiolepis, 404. 



Ophiurella, 403. 



Ophiurida, 403. 



Ophiiwoidea, 399. 



C^/j-, 725. 



Opisthobranchiate Gastropods, 800. 



Oppelia, 865. 



Orbicular silica, 7. 



Orbiculoidea, 653. 



Orbitoides, 137. 



Orbitolites, 125, 126. 



Orbulina, 132. 



Orchestia, 557. 



Oreaster, 398. 



Organic types, succession of, 96. 



Oriostoma, 77$. 



Oi-ophocrinus, 462, 463, 464. 



Orozoe, 514. 



Orthis, 658, 659, 660. 



Orthisina, 661. 



Orthoceras, 836, 837. 



