INDEX. 



479 



Pollock, F., on the habits of some 



Madeiran Spiders, 271. 

 Polypes, on parasitic, in the paren- 

 chyma of a sponge, 50. 

 Polyzoa, on a new genus of, 396. 

 Prophthalmus, new species of, 322. 

 Propithecus, new species of, 206, 



298 ; on the varieties of, 474. 

 Psamnioperca and Cnidon, on the 



identity of the genera, 426. 

 Pseudocyclops, description of the 



new genus, 7. 

 Pseudorca, new species of, 51. 

 Quadrumana, review of the fossil, 



153. 

 Reptiles, new species of, 418. 

 Rhabdoliths, observations on, 359. 

 Rhinoceros, on the double-homed 



Asiatic, 207, 298, 399. 

 Ritsema, C, on Tarsolepis and Cri- 



nodes, 228, 274, 446. 

 Robin, C, on the noises and expres- 

 sive sounds produced by fishes, 



470. ^ 



Rossella, new species of, 137. 

 Rotch, W. D., on a new genus and 



species of hydroid Zoophytes, 126. 

 Royal Societv, proceedings of the, 



142, 222, 300. 

 Ssenuris, on some species of, 280. 

 Salarias, new species of, .399, 424. 

 Salmon, on the structure and deve- 

 lopment of the skuU of the, 222. 

 Sarcophilus ursinus, on the myology 



of, 17. 

 Scammon, Capt. C. M., on a new 



species of Balfenoptera, 473. 

 Scapia, on the genus, 218. 

 Schmidt, Dr. O., on Coccoliths and 



Rhabdoliths, 359. 

 Sclater, Dr. P.'L., on Propithecus bi- 



color and Rhinoceros lasiotis, 298. 

 Scolopsis, new species of, 423. 

 Seeley, H. G., on the origin of the 



vertebrate skeleton, 21. 

 Shai-pe, R. B., on some new species 



of birds, 450. 

 Sicard, M., on the connexion which 



exists between the nervous and 



muscular svstems in the Helices, 



466. 

 Sitta, new species of, 450. 

 Sosytelus, description of the new 



genus, 90, 

 Spatulemys, description of the new 



genus, 463. 



Splice rotherium, new species of, 358. 



Spiders, on the habits of some Ma- 

 deiran, 271. 



Sponges, on new species of, 58, 76, 

 101, 110; on some parasites of, 

 108 ; on a new genus of hexara- 

 diate and other, 134 ; of the Bri- 

 tish Museum, on the marine, 152 ; 

 on thread-cells and semen in ma- 

 rine, 300. 



Spongiadse, on the origin of the 

 thread-cells in the, 50. 



Spongozoon, on the, 45. 



Staurocorvne, description of the new 

 genus, 126. 



Stratiorrhina, characters of the genus, 

 322. 



Taphroderes, new species of, 319. 



Tarsolepis, description of the new 

 genus, 125, 228, 274, 446. 



Tartarides, description of the new 

 family, 410. 



Terebratulae, on the habits of the, 

 152, 465. 



Tethya, on the name, and its varie- 

 ties of spelling, 150, 227. 



antarctica and T. zetlandica, ob- 

 servations on, 58, 141. 



muricata, observations on, 209. 



Thelyphonidea, new genus and species 

 of, 409. 



Thelyphonus, monograph of the 

 genus, 200. 



Thomson, J., on some dermal tuber- 

 cles associated with fossil fish-re- 

 mains, 66. 



Thomson, Prof., on the Echinidea 

 of the ' Porcupine ' deep-sea dredg- 

 ing-expeditions, 300. 



Thylacoleo carnifex, observations on, 

 169. 



Timalia, new species of, 61. 



Tortoises, on the Mud-, of India, 

 326. 



Trachelizus, new species of, 320. 



Tragopus, new species of, 97. 



Trichastoma, new species of, 451. 



Trimerella, Dinobolus, and Monome- 

 rella, observations on the genera, 

 248. 



Trionyches of India, on the, 219, 



326. 

 UmbeUula grcenlandica, note on, 



151. 

 Van Beneden, Prof. E., on the deve- 

 lopment of the Gregarinse, 309. 



