INDEX TO 
GENERA AND SUBGENERA RECORDED AS NEW IN 
THIS VOLUME. 
INCLUDING NEW NAMES FOR GENERA BEFORE CHARACTERIZED.* 
[The symbol 1| indicates that the name to which it is affixed has been used before 
in Zoology.] 
Ablabus, Broun, lus. 40 [-bia, 
lluhner, Ins. 1816] 
Ablacopous, J. Thomson, Ins. 48 
Abyssascidia, Herdman, Moll. 110 
Acanthaphrites, Gunther, Pise. 11 
Acanthodromia, A, Milne- Edwards, 
Crust. 28 
Acanthogonatus, Karsch, Araebu. 7 
Acanthotrochus, Danielssen, Ech. 10 
Acerophagus, E. A. Smith, Ins. 115 
Achlyonice, Theel, Ech. 10 
Achromisetes, Kraatz, Ins. 51 
Aclytia ||, Broun, Ins. 61 \_Huhner, 
Ins. 1816] 
Acneus, Horn, Ins. 56 
Acontiophorus, Brady, Crust. 59 
Acorium, Signor et, Ins. 228 [-ius, 
Zimmerman, Ins. 1831] 
Acosmetus, Broun, Ins. 40 [-tia, 
Stephens, Ins. 1839] 
Actinomonas, Kent, Prot. 19 
Adroum, Karsch, Arachn. 23 
Adcatomus, Karsch, Arachn. 9 
Adelocyrtis, Pantanelli, Prot. 15 
Adelodouta, Ancey, Moll. 82 
Adelostella ||, Broun, Ins.40[AM5im, 
Ech., as Section, 1842] 
Adouides, J. Thomson, Ins,. 50 
Adoxia, Broun, Ins. 96 [-xus, Kirby, 
Ins. 1837] 
Adrastis, Simon, Arachn. 16 [-tus, 
Eschscholtz, Ins. 1829] 
Adyroma, Mbschler, Ins. 158 
uEolocosma, Meyrick, Ins. 179 
iEpypodius, Oustalet, Aves, 46 
JEtiB,, Chambers, Ins. 179 [Aetia, 
Agassiz, amending Aetea, La~ 
mouroux, Coel. 1812] 
Agathinus, Broun, Ins. 74 [-na, 
Rafinesque, Moll. 18 — ] 
Agrilochilus, Broun, Ins. 79 
Akidoproctus[Aci-], Piaget, Ins. 204 
Alaimus [-Isemus], De Man, Verm. 6 
Albertisia, Issel, Moll. 96 
Aldonida, Broun, Ins. 76 
Alexidia, Reitter, Ins. 37 
Allopogon, Horn, Ins. 56 
■MXoivwMiTi, McLachlan, Ins. 201 
Amabela, Mbschler, Ins. 158 
Ambeodontus, Brown, Ins. 84 
Ambesa, Grote, Ins. 170 
Amnestoides, Signoret, Ins. 226 
Amphicetus, Beneden, Mamm. 22 
Amphicyclotus, Fischer, Moll. 94 
Amphigerontia, Kolbe, Ins. 212 
Amphilectus, Vosmaer, Spong. 12 
* The number of new genera and subgenera contained in the present volume 
is 1008, as against 970 of vol. xvi. (which contained 60 new genera of Arachnida, 
properly belonging to vol. xv. , from which that group had been omitted). These 
are divided as follows : — Mammalia, 34 ; Aves, 16 ; Reptilia, 21 ; Pisces, 31 ; Mol- 
lusca and Molluscoida, 79 ; Crustacea, 80 ; Arachnida, 78 ; Myriopoda, 2 ; 
Insecta, 4<38 ; Fermes, 28 ; Echinodermata, 24; Coelenterata, 'lO ; Spongiida, 51: 
and Protoxoa, 56. The expediency of publishing the volume before the end of 
1881 has necessitated a very superficial examination of the list, as regards prior 
occupation. — E. 0. R. 
