508 



Sheat-fishes, 38. 



Siluridae, 33, 45, 49. 



Siphodentalium honolulense, 87, 89. 



Sloth, green colour of hair of, 337. 



Solanocrinus, its relations to recent 

 Comatula?, 187. 



(Goldfuss), 188, 189, 190 ; asper, 



202; Bronnii, 204; costatus, 191, 

 192, 196 ; Jaegeri, 190 ; list of genus, 

 187. 



Solariella, subg. Trochus, 92. 



Solarium, 95. 



Solea vulgaris, 316. 



Solenoconchia (Chall. Exped.), 87. 



Solenostomus, 41. 



Sphyrama parva, 78. 



Sponges, incorporation of spicules 

 foreign to them, 149. 



, on a Lithistid, and form of 



Aphrocallistes from the coast of 

 Spain, 320. 



Spongia bilamellatum,493; cancellata, 

 496; nervosa, 496. 



Steatoda albomaculata, 152 ; bipunc- 

 tata, 152, 153 ; castanea, 152 ; gut- 

 tata, 152, 153, stridulating-organs 

 of, 152; sticta, 152. 



Stewart, C, on an abnormal Ambly- 

 pneustes griseus, 130. 



Stickleback, 36, 37, 39. 



Stridulating-organs of Steatoda guttata 

 and Linyphia tenebricola, 152. 



Stromateus simihs, 52. 



Strongylus falcifer, 333 ; fohatus, 333. 



Styela grossularia, 330, 331. 



Suberites fuliginosus, 478. 



Suberotelites mercutor, 478. 



Supplementary note on Chitinous or- 

 gans in Cheilostomata, more par- 

 ticularly Cellepora, by Gr. Busk, 

 357. 



Surcula, subg. Pleurotoma, 388, 450, 

 455. 



Synthetic type of Ophiurid from the 

 N. Atlantic, Prof. P. Martin Duncan 

 on, 73. 



Tabanus bovinus, 15. 



Tedania digitata, 478 ; muggiana, 478 ; 



nigrescens, 478. 

 Tegenaria domestica, glands in maxilla? 



of, 155. 

 Telescope-fish, 41. 

 Ternnopleurus, 319. 

 Terebra, 121. 

 Testudo inepta, 58 ; leptocnemis, 58 ; 



vosmeeri, 58; triserrata, 58. 

 Tetrodon, 49 ; nigripunctatus, 45. 

 Thalestris serrulata, 68. 



Thaumantiidse, 134. 



The parasites of Elephants, by T. 



Spencer Cobbold, 333. 

 Therapons, 52. 

 TheridiidEe, 157. 

 Theridion hamatum, 152. 

 Thesbia, subg. Pleurotoma, 413, 443, 



444, 453 ; nana, 446. 

 Thiolliericrinus, 209. 

 Thresher Shark, attacks of, on Whale,55. 

 Thynnus brachypterus, 311. 

 Tinker-fish, 36. 



Torcula, subg. TurriteUa, 217, 229. 

 Torpedo hebetans, 47 ; marmorata, 47. 

 Tortoises, extinct, of Mauritius and 



Eodriguez, 58. 

 Trachinus vipera, 54 

 Trachomedusse, 133 ; relations of, 



(ftnote) 132. 

 Trachurus trachurus, 84. 

 Trachynotus pyriformis, 386. 

 Trichechus, 144 ; Huxleyi, 144, 145 ; 



rosmarus, 145. 

 Trichecodon, 144; Koninckii, 144; 



Huxleyi, 144, 145. 

 Triforis, subg. Cerithium, 99 ; angus- 



tissima, 102 ; gigas, 102 ; Pfeifferi, 



102 ; scitula, 102 ; suturalis, 103. 

 Trigla pini, 49. 

 Triton brasilianus, 270 ; parthenopus, 



270 ; philomelee, 268 ; Quoyi, 270 ; 



viperinum, 270. 

 Tritonidse (Chall. Exp.), 245. 

 Troehidse (Chall. Exped.), 87. 

 Trochus albugo, 90, 94 ; angulatus, 94 ; 



arruensis, 90, 91 ; decoratus, 91 ; 



euglyptus, 92 ; fulgens, 91 ; lamprus, 



90, 93, 94 ; leaensis, 90 ; menkeanus, 



91 ; nobilis, 92 ; philippensis, 90, 



92 ; tumidus, 92 ; vernicosus, 94 ; 



vitiligineus, 94 ; zonatus, 91. 

 Tubulipora ventricosa, 240. 

 Tunicata, Alder and Hancock on, 275 ; 



Herdman on new British, 274. 

 Tunnies, British, obs. on, 310. 

 TurriteUa, 250 ; accisa, 217, 220, 222 ; 



admirabihs, 21 7, 218, 227 ; austrina, 



217, 218, 224 ; bicolor, 229; carlottse, 



217, 218, 222 ; conspersa, 221, 229 ; 



Cordismei, 217, 224 ; declivis, 230 ; 



deliciosa, 217, 226 ; duplicata, 226 ; 



Gunnii, 221, 230; Hookeri, 226; 



incisa, 221 ; knysnaensis, 223, 226 ; 



lamellosa, 217, 229 ; monilifera, 230; 



pagoda, 221, 226 ; philippensis, 217, 



223 ; runcinata, 217, 218, 222 ; 



sinuata, 220; terebra, 226; tripli- 



cata, 220, 226. 

 TurritellidEe (' Chall.' Exped.), 217- 



