15 Crust. 
Subject Index.— Variation, Etc. 
2023 
Habitats. 
Bathymotrical distribution, poriodio 
variation, Holopedium (Cladoc.) ; Frie- 
denfelt, 71. 
Entomostraca ; Dodds, 64. 
Plankton, marine ; Herdman, 97 ; 
Kayser, 107 ; Copepoda ; Farran, 68 ; 
Willey, 206 ; Ostracoda ; Skogsberg, 
176 ; Penaeida, Stenopidea ; Sund, 
183. 
Plankton, freshwater ; Allen, 5 J 
vertical distribution ; Baudin, 14 ; 
Diaptomus (Copep.) ; Burckhardt, 26 ; 
Entomostraca ; Haberbosch, 87. 
Littoral ; Herdman, 95. 
Tachidius brcvicornis in fresh water, 
Norfolk : Gurney, 84. 
Asellus aquations, Grammarus pulex 
associated with Mollusca ; Jackson, 103. 
In Termites nest, Isopoda ; Silvestri, 
175. 
Cavern icolous, Bathynella chappuisi ; 
Delachaux, 63. 
Freshwater Crustacea, conditions of 
light, temperature, vegetation, etc., 
Chappuis, 35. 
Limits of water temperature, Ento- 
mostraca ; Haberbosch, 87. 
Breeding Habits, See. 
Mating and nesting, Gelasimus, XJca ; 
Vanhoffen, 194. 
Parasitism, Commensalism, &c. 
On Whales, Copepoda ; Wilson, 210. 
On Fish, Copepoda ; Fraser, - 70 ; 
Wilson, 207, 208, 210 ; Ichthyoxenus geei 
(Isop.) ; Boone, 20 ; Clavella iadda 
(Copep.) ; Leigh-Sharpe, 114 ; Livoneca 
sinuata (Isop.) ; Mosella, 134 ; Sphyrii- 
dae (Copep.); Wilson, 212; On Sprat 
( Clupea spratta), Lernazenicus sardinae 
(Copep.) ; Baudouin, 15 ; On Salmo 
solar, Copepoda ; Heitz, 93 ; On 
“ swordfish,” Gloiopotes costatus 
(Copep.) ; Wilson, 211. 
On Marine Invertebrates, Copepoda ; 
Wilson, 210. 
On Tunicata , Lonchidiopsis hart- 
meyeri (Copop.); VanhiJffen, 196; 
Copepoda ; Wilson, 210. 
On Polychaeta, Copepoda ; Wilson, 
210 . 
On Sacculina , Enthylacus trivinctus 
Cryptonisc.) ; P6rez, 146. 
On Isopoda, Ancyroniscus bonnier i 
(Epicarid.) ; Caullery & Mesnil, 34. 
Larval Diptera on Terrestrial Iso- 
poda ; Thompson, 191. 
Commensal on “ sea-feathers ” Peri- 
climenes beaufortensis (Carid.) ; Borra- 
daile, 21. 
Anchislus miersi (Pontoniid.), Ostra- 
cotlieres spondyli (Pinnother.), Sacculina 
ostracotheris Rhopalione uromyzon (Epi- 
carid.) commensals with Spondylus 
gaederopus (Mollusc.) ; P6rez, 145, 147. 
Commensal plants and animals car- 
ried by Maia squinado ; Zirpolo, 218. 
Adaptation to habit of host (Salmo) 
in passage from fresh to salt water, 
Copepoda (paras.) ; Heitz, 93. 
VARIATION AND AETIOLOGY. 
2623 
Variation, Mutation. 
Artemia ; Artom, 8 ; Daphnia longi - 
spina var. cucullata ; List, 118. Phyllo- 
poda, Lundblad, 119 ; Corophium volu- 
tator (Amphip) ; Mercier, 129 ; Clado- 
cera, Woltereck, 215. 
Eye-colour, Gammarus ; Allen & 
Sexton, 4. 
Secondary sexual characters, Uca 
spp. (Catom.) ; Morgan, 133. 
Mutation, Caridina richtersi to Ort- 
mannia edwardsi (Carid.) ; Charmoy, 
36. 
Teratology. 
Abnormalities in Copepoda ; Al- 
verdes, 6. 
Phylogeny. 
Stomatopoda; Grobben, 81; Crus- 
tacea, relation s to Trilobites ; Ray- 
mond, 161. 
Relations of Porcellio and Track- 
eoniscus (Isop.) ; Verhoeff, 199. 
Heredity. 
Daphnia, absence of Mendolian se- 
gregation in pathenogeneusis of Hybrid ; 
Agar, 2. 
Inheritance of abnormalities, Cope- 
poda ; Alverdes, 6. 
Chromosomes as basis of inheritance, 
Artemia ; Artom, 8. 
