452 



A HISTORY OF RECENT CRUSTACEA 



HEX 



Gnathia, 337; on the Sphaaro- 



midse, 362 

 Hetairus, 234 ; difficulties in the 



way of accepting, 235 

 Heterocarpus, ensifer, 238 ; cari- 



natus, 239 

 Heterocrypta, Maltzani, Marionis, 



122 

 Heterocuma, Sarsii, var. granulata, 



304 



ITeteromysis, 267 ; formosa, 273 

 H eterophryxus appendiculatus, 



400 

 Heterotanais, 323 ; limicola, 6r- 



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 



Hippidas defined, 149 

 Hippinea defined, 149 

 Hippolyte, 234 ; Gaimardii, var- 



ians, 235 ; Cranchii, fascigera, 



Liljeborgi, Mitchelli, pandali- 



formis, Prideauxiana, producta, 



pusiola, securifrons, spinus, 



viridis, Whitei, 236; Thomp- 



soni, 237 



Hippolytidas denned, 233 

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



sidis, 399 



Holothuriaphilus, 101 

 Honiaridfe, reason for discarding 



the name, 201 

 Homarus, a synonym of Astacus, 



201 

 Homola, barbata, Cuvieri, orienta- 



lis, 137 



Homolidae defined, 137 

 Homologenus, 138 

 Homolopsis preoccupied, 138 

 Horse-shoe Crab, 17 

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



of Euphausiidas, 265 

 Huenia, curious derivation of, 107; 



elongata, heraldica, proteus, 



discussion of, 107, 109 

 Huxley, Professor, terms used by, 



ION 



36 ; on the maxillary fan, 41 ; 



on ' palp ' and ' flagellum,' 192 ; 



on branchiae of Nephrops, 202 ; 



on Amurland Cray-fishes, 208 

 Hyas, 113 ; araneus, coarctatus, 



small specimen of, 114 ; curious 



habits of, 114 

 Hyatt, Mr. Alpheus, Science 



Guides by, 40 



Hylfeocarcinus, 79, 80 ; Humei, 84 

 Hymenodora, 245 

 Hymenosoma orbiculare, 101 

 Hyperidea, tribe of Amphipoda, 



436 ; specimens on jelly-fishes, 



22 ; large species of, 30 

 Hypoconcha, 135; sabulosa, ex- 

 amined by Herbst, 136 

 Hyssura, 331 ; producta, 333 



IAIS 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 

 Idoteidce defined, 372 

 Ilyarachna, longicornis, quadri- 



spinosa, 386 

 Ilyoplax, 93 

 Inachidas denned, 104 

 Inachus, dorsettensis, dorj'nchus, 



leptochirus, 106 

 Insecta, extent of class, at present, 



3 ; formerly, 57 



Insect, crab spoken of as an, 95 

 lolanthe, 378 

 lone, cornutus, gebia3, thoracicus, 



vicina, 414 



