504 



Hymeniacidon armatura, 478. 



Hyruenoptera, limits thorax of, 9, 10, 

 16, 19, 20, 24. 



Hynieraphia microcionides, 482. 



Hyperia niedusarum, 66. 



Hypophorella expansa, Ehler's descript. 

 of, 6 ; dimorphism zooids of, 8 ; stel- 

 late cell of, 8. 



Ichthyscopus inermis, 53. 



Idotea bicuspida, 65 ; parallela, 65 ; 



rugulosa, 65 ; sp.?, 64 ; Whymperi, 65. 

 Indian climbing Perch, 44. 

 Instincts and Emotions in Fish, by F. 



Day, 31. 

 Isapis fenestrata, 98. 

 Isocrinus, 211 ; pendulus, 211, 212. 

 Isodictya, 151 , Beanii, 485 ; coriacea, 



481. 

 Isopoda (Greenland), 64. 



Jaculator-fish, 54. 



Janise, 37. 



Jeffreysia, 87 ; Edwardiensis, 99. 



Kaliapsis cidaris, 324. 



Kirby on Collar of Insects, 11. 



Labrus bergylta, 312; comber, 312, 



313, 314 ; Donovani, 312, 313, 314 ; 

 lineatus, 312, 313 ; maculatus, 312, 



314, var. Donovani, 312. 



Lacuna, 87 ; crassior, 96 ; fragilis, 96 ; 

 margaritifera, 96, 97 ; picta, 96 ; 

 tenella, 97. 

 Lambidium, (ftnote) 266. 

 Lamprey, 40. 

 Lankester, E. Ray, on tusks of Fossil 



Walrus from Red Crag of Suffolk, 



144. 

 Laphystius sturionis, 67, 71. 

 Lasius flavus, 182, 386 ; niger, 174, 175, 



177, 179, 364, 365, 367, 378, lon- 

 gevity of, 386, nest of, 180. 

 Latreille on Segments of insects, 17. 

 Leieschara coarctata, 235. 

 Lepadogaster DeCandollii, 311. 

 Lepidoptera, thorax limits of, 9, 16, 17, 



19, 20, 24. 

 Leptomedusse, 133. 

 LernEeopoda Edwardsii, 72 ; elongata, 



71 ; salmonea, 72. 

 Life-histories of Gamasinse, 297. 

 Limnocodium victoria, a new Hydroid 



Medusa of fresh water, Prof. G. J. 



Ailman on, 131 ; affinities of, 133 ; 



generic character of, 137; structure of, 



131 ; Sowerbyi, (ftnote) 131. 

 Lingual characters of Gasteropods, 



Linyphia clathrata, 155 ; tenebricola, 

 stridulating-organs of, 152 ; tenuis, 

 154 ; terricola, 154. 



Liparidse, new Moth from Madagascar, 

 A. G. Butler on, 84. 



Liparis Montagui, 311 ; salicis, 17, 24. 



List of Polyzoa coll. by Capt. H. W. 

 Feilden in the N.-Polar Exped., G. 

 Busk on, 231. 



Lithistid Sponge from Spanish coast, 

 descrip. of, 321. 



Litiopa, 87, 124 ; hmnseiformis, 123. 



Litorinidse (Chalk Exped.), 87. 



Lophius piscatorius, 53. 



Lowne, views of, on parts of insects, 

 11, 12, 15. 



Loxosoma, 1, 2 ; an archetypal form, 

 6 ; . body-cavity of, 3 ; crassicauda, 2, 

 3 ; digest, canal, 4 ; dioecious sp., 5 ; 

 Kefersteinh, 3 ; muscles of, 4 ; nea- 

 politanum, 4 ; nervous syst. of, 4 ; 

 Nitsche, O. Schmidt, and Salensky's 

 observ. on, 2 ; peduncle of, 2 ; pedun- 

 cular gland, 3, 5 ; phascolosomatum, 

 3, 5; renal gland? (=segment. org. 

 Worms ?), 4 ; singulare, 3 ; sucker 

 of, 3 ; tentacles of, 3 ; Tetkyee, 2, 3 ; 

 unicellular gland of, 3. 



Lubbock, Sir J., Observ. on Ants, Bees, 

 and Wasps.— Part VII., 167; Part 

 VIII., 362. 



Lumpsucker, 35. 



Lunatia variabilis, 256. 



Lycosa campestris, 156. 



MacAndrewia azorica, 324. 



McCook's exp. on ants, 173, 176. 



Macdonald, Dr. J. D., on Classif. of 

 Gasteropoda.— Part I., 161 ; Part II., 

 241. 



MacLeay on segments of insects, 17. 



Macrochlamys, 292. 



Macrones leucophasis, 45 ; vittatus, 45. 



Macropodus, 34, 35 ; pugnax, 43. 



Madagascar, new Moth from, 84. 



Mangelia, subg. Pleurotoma, 413, 430. 



Margarita, 93 ; angulatus, 93 ; bellula, 

 93 ; tasmanica, 93. 



Marginal bodies of Medusae, 137. 



Mauritius and Rodriguez, extinct Land- 

 Tortoises from, 58. 



Maurolicus borealis, 83. 



Medusa, new Hyroid, of freshwater, 

 by Prof. G. J. Ailman, 131. 



Megalopyge, 84. 



Membranipora pilosa, 8 ; unicornis, 234. 



Membraniporida: (Arctic), 234. 



Mcnipea arctica, 232 ; gracilis, 232 ; 

 ternata, 232. 

 250. 



