452 



A HISTORY OF EECENT CRUSTACEA 



HET 



Gnathia, 337 ; on the Spbsero- 



midas, 362 

 Hetairus, 234 ; difficulties in the 



wa}' of accepting, 235 

 Heterocarpus, ensifer, 238 ; cari- 



natus, 239 

 Heterocrypta, Maltzani, Marionis, 



122 

 Heterocuma, Sarsii, var. granulata, 



304 

 lleteromysis, 267 ; formosa, 273 

 H eterophrvxus appendiculat us, 



400 

 Heierotanais, 323 ; limicola, Or- 



stedi, tenuis, 327 

 Hexapoda, alias Insect a, 3 

 Hexapus, explanation of the name, 



102 ; relations of, 103 

 Hieroglyphics, pinna and crab in, 



100 

 Hippa, 149 ; emeritus, talpoida, 



150 

 HippidjB defined, 149 

 Hippinea defined, 149 

 Hippol^'te, 234 ; Gaimardii, var- 



ians, 235 ; Cranchii, fascigera, 



Liljeborgi, Mitchelli, pandali- 



formis, Prideauxiana, product a, 



pusiola, securifrons, spinus, 



viridis, Whitei, 236; Thomp- 



soni, 237 

 HippolytidcB defined, 233 

 Hoek, Dr. P. P. C, on Dajus my- 



sidis, 399 

 Holothuriaphilus, 101 

 Homaridre, reason for discarding 



the name, 201 

 Homarus, a synonym of Astacus, 



201 

 Homola, barbata, Cuvieri, orienta- 



lis, 137 

 Homolidte defined, 137 

 Homologenus, 138 

 Homolopsis preoccupied, 1 38 

 Horse-shoe Crab, 17 

 Hoyle, Mr. W. E., on larval stages 



of Euphausiidffi, 265 

 Huenia, curious derivation of, 107; 



elongata, heraldica, proteus, 



discussion of, 107, 109 

 Huxley, Professor, terms used by, 



ION 



36 ; oil the maxillary fan, 41 

 on ' palp ' and ' llagellum,' 192 

 on branchiie of Nephrops, 202 

 on Amurland Cray-fishes, 208 



Kyas, 113; araneus, coarctatus, 

 small specimen of, 114 ; curious 

 habits of, 114 



Hyatt, Mr. Alpheus, Science 

 Guides by, 40 



Hyla30carcinus, 79, 80 ; Humei, 84 



Hymenodora, 245 



Hymenosoma orbiculare, 1 01 



Hyperidea, tribe of Amphipoda, 

 436 ; specimens on jelly-tishes, 

 22 ; large species of, 30 



Hypoconcha, 135; sabulosa, ex- 

 amined by Herbst, 136 



Hyssura, 331 ; producta, 333 



lAis Hargeri, 378 

 lanthe, speciosa, Bovallii, 378 

 lanthopsis Bovallii, 378 

 lathrippa longicauda, 378 

 Ibaccus, mis-spelling of Ibacus, 



193 

 Ibacus, incisus, verdi, 193 

 Ichthyophilus, synonym of Nero- 



cila, 351 

 Ichthyoxenus, Jellinghausii, mon- 



tanus, 355 

 Tcotopus, meaning of name, 254 

 Idotea, emarginata, lacustris, 



linearis, marina, metallica, 



pelagica, sexlineata, tricuspi- 



data, 373 ; acuminata, appendi- 



culata, longicaudatus, parallela, 



prismatica, 374 

 Idoteid«j defined, 372 

 Ilyarachna, longicornis, qtiadri- 



spinosa, 386 

 Ilyoplax, 93 

 Inachidae defined, 104 

 Inachus, dorsettensis, dorynchus, 



leptochirus, 106 

 Insecta, extent of class, at present, 



3; formerly, 57 

 Insect, crab spoken of as an, 95 

 lolanthe, 378 

 lone, cornutus, gebise, thoracicus, 



vicina, 414 



