INDEX. 



453 



CaiTioy, J. B., on polymorpliism in 

 the Mucorinese, 292. 



Carter, H. J. , on three Pachytragous 

 Sponges from the south coast of 

 Devon, 1 ; on fossil sponge-spi- 

 cules of the greeusand compared 

 with tliose of existing species, 112 ; 

 on Melobesia unicellularis, better 

 known as the Coccolith, 184 ; on 

 a freshwater species of Ceratium, 

 229 ; on two undescribed Sponges 

 and two Esperiadee, and on tlie 

 nomenclature of Clathrina, 268 ; 

 on the discovery of the animal of 

 the Spongiadse, 445. 



Ceratium, on a freshwater species of, 

 229. 



Ceratodus, on the relationship of 

 Dipterus and Ctenodus to, 190; 

 on its place in the system, 222. 



Chsetogaster, on the genital organs 

 of, 99. 



Chimpanzee, on the myology of the, 

 341. 



Chirozetes, new species of, 211. 



Chlamj^horus truncatus, note on, 

 447. 



Chrysopila, on abdominal sense- 

 organs in, 174. 



Cinclosoma, new species of, 256, 



Cisticola, new species of, 241. 



Cladocoryne, description of the new 

 genus, 227. 



Claparede, E., on the maiine Bryo- 

 zoa, 450. 



Clathrina, on the nomenclature of, 

 278. 



Coals, on spore-cases in, 321. 



Coccolith, on the nature of the, 184. 



Coleoptera fi-om Old Calabai', de- 

 scriptions of, 38. 



Coloenis, new species of, 416. 



Conopleura, new species of, 358. 



Cope, Prof, on the structure of the 

 crania of Reptilia and Batrachia, 

 67 ; on Siredon - metamorphoses 

 &c., 246. 



Corals, on recent and fossil, 66 ; on 

 the structure of the, 437. 



Corixa, new species of, 236. 



Crag-fauna, contributions to the, 

 351. 



Crinoidea, onthe structure of the,142. 



Crinoidea brachiata, on the base of 

 the, 393. 



Ctenodus, on the relationship of, to 

 Ceratodus, 190. 



Cyprsea, on the assumption of the 

 adult form by the genus, 171, 245. 



Cystidea, on the structure of the, 

 142. 



Dsedania, description of the new ge- 

 nus, 212. 



Ball, W. H., on a natural aiTange- 

 ment of the order Bocoglossa, 286; 

 on transversely striated muscular 

 fibre among the Gasteropoda, 312. 



Dana, J. D., on the supposed legs of 

 Asaphus platycephalus, 366, 451. 



Darwin's theory of descent, observa- 

 tions on, 417. 



David, A., on two new species of 

 Birds, 256. 



Dawson, G. M., on Foraminifera 

 from the Gulf and River St. Law- 

 rence, 83. 



Dawson, Dr. J. W., on spore-cases 

 in coal, 321. 



Dercitus, new species of, 3. 



Diadema octocula, on the habitat of, 

 447. 



Dioplodon sechellensis, on the ske- 

 leton of, 291. 



Diplograpsus pristis, on a specimen 

 of, with reproductive capsules, 317. 



Dipterus, on the relationship of, to 

 Ceratodus, 190. 



Docoglossa, on a natural arrange- 

 ment of the order, 286. 



Dolphins, on the Eutozoa of the, 

 392. 



Dorvillia agariciformis, observations 

 on, 37. 



Dredging in the Gulf of Suez, 67, 



Duncan, Dr. P. M., on the structure 

 and affinities of Guynia annulata, 

 444. 



Echinoderms, on the occurrence of 

 embryonic forms among the pa- 

 laeozoic, 149. 



Echinorhynchus gigas, on the deve- 

 lopment of, 441. 



Ectyon sparsus, observations on, 270. 



Ehlers, Prof, on a new form of 

 Sponge, 302. 



Elichora, description of the genus, 

 264. 



Emexaure, description of the new 

 genus, 216. 



Endodesmia, characters of the new 

 genus, 432. 



Entozoa of the Dolphins, on the, 392. 



Eolididae, on a new genus of, 391. 



Ephydra, new species of, 233. 



