546 



INDEX. 



Meresohkowsky, C, oa a new genus 



of Hydroids from the White Sea, 



with descriptions of other new 



Hydroids, 220. 

 Merragata, characters of the new 



genus, 113. 

 Microporella, characters of the new 



genus, 526. 

 Miers, E. J., on Arctic Crustacea, 52, 



96. 

 Miltochrista, new species of, 87, 396. 

 Miresa, new species of, 93. 

 Mixornis, new species of, 535. 

 Mollusca, on Arctic, 131, 229 ; new, 



242, 316, 367, 517, 538. 

 Monacanthus, new species of, 446. 

 Monobrachiuni, on the histology of 



the new genus, 220. 

 Moore, F., on new genera and species 



of Lepidoptera, 43, H3, 339. 

 Mucronella, characters of the new 



genus, 526. 

 Mulleripicus, new species of, 533, 

 Mussacese, revision of the recent soli- 

 tary, 300. 

 3Iyriopoda, new, 114. 

 Myscelus, new species of, 319. 

 Nabis, new species of, 112. 

 Nautilus pompilius, note on, 331. 

 Necroscia, new species of, 130. 

 Neptis, new species of, 47, 339. 

 Nettastoma, new species of, 446. 

 Newton, Prof. A., on the nomencla- 

 ture of the groups of Ratitse, 499. 

 Nicholson, Dr. H. A., on the genus 



Tetradium, 161 ; on Prasopora 



Grayse, 388. 

 Niltava, new species of, 95. 

 Norman, Rev. A. M., on two new 



British Nudibranchiate Mollusca, 



517. 

 Northia, new species of, 394. 

 Odonestis, new species of, 481. 

 CEona, new species of, 482. 

 CEonistis, new species of, 398. 

 Ophrystoma, characters of the new 



genus, 511. 

 Oreta, new species of, 477. 

 Orsodacna, new species of, 377. 

 Ovulites margaritula, on, 77. 

 Owen, Prof., on a new Marsupial 



from Australia, 542. 

 Oxycera, new species of, 96. 

 Pachiosia, characters of the new 



genus, 128. 

 Pachyteichisma, characters of the 



new genus, 506. 



Pamphila, new species of, 52. 

 Pantana, new species of, 92. 

 Parasa, new species of, 93. 

 Parker, Prof. W. K., on Ovulites 



margaritula, 77. 

 Parthenos, new species of, 46. 

 Penelopides, new species of, 534. 

 Perez, J., on the fecundation of the 



egg in Echinus, 156. 

 Peridia, new species of, 474. 

 Peripatus novse-zealandiae, on the 



structure of, 81. 

 Phacusa, new species of, 343. 

 Phalera, new species of, 478. 

 Phareas, new species of, 324. 

 PhasmidaB, new, 74, 130. 

 Phassus, -new species of, 94. 

 Phibalosoma, new species of, 75. 

 Phrixolepia, characters of the new 



genus, 476. 

 Phyllium, new species of, 76. 

 Phytophaga, new genera and species 



of, 377. 

 Pidoi'us, new species of, 401. 

 Platycephalus, new species of, 436. 

 Pleopus, note on the new genus, 



642. 

 Pleuronectes, new species of, 442. 

 Pleurope, characters of the new 



genus, 514. 

 Pceoptera, note on the genus, 244. 

 Polyachus, new species of, 386. 

 Polyblastidium, characters of the 



new genus, 508. 

 Polydesmus, new species of, 115. 

 Polymixia, new species of, 436. 

 Polyommatus, new species of, 341. 

 Polyserias Hincksii, description of, 



228. 

 Polyzoa, on carboniferous, 31 ; from 



Reykjavik Harbour, 66 ; on British, 



212, 520 ; on the radical fibres of 



the, 218. 

 Pomatorhinus, new species of, 535. 

 Prasopora, description of the new 



genus, 388. 

 Prionochilus, new species of, 536. 

 Procris, new species of, 394. 

 Pryeria, description of the new genus, 



85. 

 Psychogoes, characters of the new 



genus, 400. 

 Psychostrophia, characters of the new 



genus, 401. 

 Pterodecta, characters of the new 



genus, 399. 

 Pteroplax cornuta, on, 369. 



