INDEX. 



447 



Ni'iiK rtiiins, on tlii> eiiibryogeny of 



t!i<', .'iUl ; anatiiiiiy of a remarkable 



type (if tl>e ^touj), .'571. 

 Nicliolson, I'rof. 11. A., on species of 



I lii)p()tlioii and Alecto. and on Au- 



lopora arachnoidea, Il'.'J; ou new 



spt'cii'S of Polyzoa, 177. 

 Norman, Kev. A. M., on new Zoo- 

 phytes, 172. 

 Norops, new species of, 280. 

 Oceanic sediments and their relation 



to geological formations, on, 1M8. 

 (I<]danonierus, description of the new 



genus, 407. 

 Opnidia, on the structure and deve- 



lopniont of the teeth of, 1 o-'i. 

 O'Shaughnessy, A. W. I']., on new 



species of Gobiidse, 144 ; on the 



Anolidae, 270. 

 Ostracoda, on some Carboniferous, 



from Russia, •'52. 

 Pachytelea, new species of, 403. 

 Packard, A. S., jun., on an unde- 



scribed organ in Limulus, 25''>. 

 Palsponiscus, new species of, 311. 

 Palinurus, new species of, 42. 

 Paphia, new species of, 222. 

 Paraclitopa, cnaracters of the new 



genus, 407. 

 Pascoe, F. P., on new genera and 



species of Coleoptera, <5!t ; on new 



A.siatic species of Khvnchites, 



391. 

 Patellaria, new species of, 39. 

 Pelagonemertes Kollestoni, on, 10.5. 

 Penicilliuni, new species of, 34. 

 Pentbea, new species of, 72. 

 Percis, new species of, 269. 

 Periconia, new species of, 33. 

 Pericopis, new species of, 340. 

 Perissosoma, description of the new 



genus, 409. 

 Peristethidion prionocephalum, on 



the habitat of, •■)71. 

 Perrier, K., on the circulatory appa- 

 ratus of the Echinida, 84. 

 Peziza, new species of, 37. 

 Pinaxia, on the genus, 300. 

 Platystethus, new species of, 79. 

 Pleurostoma, new species of, 410. 

 Polvchelidne, characters of the new 



family, 132. 

 Polypova, new species of, 3.3o. 

 Polyporus, new species of, -"JO. 

 Polyzoa, on new Carboniferous, 43, 



.'$33; new species of, 177. 

 Pomatorhinus, new species of, 403. 



Potamochoerus, on the skulls of the 



three .species of, 45. 

 Praonetha, nt-w species of, 00. 

 Primitia, new species of, .'5.'5. 

 Pristipoma, new species of, 2()0. 

 Protoniycfs, new species of, ."><). 

 Protorhopula, new species of, 08. 

 Pseudorhombus, new species of, 81. 

 Psilopezia, new species of, .39. 

 Psycholupis, characters of the new 



genus, (17. 

 Pteropoda, on the development of,439. 

 Ptilodictya, new species of, 177. 

 Ptor-ima, new species of, 411. 

 Puccinia, new species of, .3o. 

 Purpura, new species of, 50. 

 ]\adulum, new species of, 32. 

 lieptilia, on the development of the 



tet-th of, 153. 

 Rhabdomeson, characters of the 



genua, .'5.34. 

 Rhizocephala, on the embrvogenv of 



the, 83. 

 Rhizodus Ilibberti, on, 206. 

 Rhizopods, on some freshwater and 



terrestrial, 160, 370. 

 Rhynchites, new species of, 391. 

 Rhytiphora, new species of, 72. 

 Rossella, on the genus, 113. 

 Roval Societv, proceedings of the 



lo3, 225, 28('), 3(54. 

 Ruscino, new species of, -341. 

 Sabatier, A., on the anatomy of the 



common Mussel, 157. 

 Sagridola, new species of, 414. 

 Salamandrella, description of the 



fossil genus, 2."53. 

 Salensky, Dr. W. ,on Hackel's G astraea 



theoiT, 1. 

 Scapus, on the new genus, 173. 

 Schizodus, new species of, 431. 

 Schneider, A., on an apparatus of 



dissemination of the Gregarin.ie 



and the Stylorhynchi, 3(i8. 

 Sciji}na, new species of, 2(59. 

 Scordylia, new species of, 341. 

 •Scoi-psena, new species of, 80. 

 Sea-bottom, on the nature of the, 280. 

 Seba, new species of, 185. 

 Selachia, on segmental organs in 



adult, 95. 

 Semper, Prof. C., on the embryogeny 



of the Rhizocephala, 83 ; on the 



relationship of the Vertebrata and 



Annelida, 94 ; on segmental organs 



in adult Selachia, 9.5. 

 Se.«arma. new species of, Jl. 



