294 



FLEAS, FLUKES AND CUCKOOS 



Rock-dove (Columba livia), 



i54> 231 

 Rock-dove Flea {Ceratophyl- 



lus columbae), 62, 84, 100, 



110 

 Rockling {Onos spp.), 202 

 Rock-thrush {Monticola saxa- 



tilis), 190 

 Roe deer, 49 

 Roe-deer Flea {Dorcadia dor- 



cadia), 49 

 Ko\\tr{Coracias garrulus), 150 

 Rook {Corvus frugilegiis), 17, 



23, 26, 31, 85, 147, 149, 



171,181,194,230,236,252 

 Rose-coloured Pastor {Pastor 



roseus), 231 

 Roundworms {Nematoda) , 3, 



40> 41. 43. 54> 99> 125, 

 176-187, 188, 189, 243, 



245 



Rous sarcoma virus, 241 



Rove Beetles {Staphylinidae) , 

 5, 28, 50, 51, loi, 249 



Ruby-throated Humming- 

 bird {Archilochus colubris), 

 28 



Ruffed Grouse {Bonasa um- 

 bellus), 229, 231 



Sacculina (Crustacean), 47, 



53. 130 

 Saemundssonia (Feather Lice), 



153, 154, PL XXI (130) 

 Salmon (Salmo salar), 195 

 Salmonella (Bacteria), 98, 237 

 Salmonella pullorum (Bacter- 

 ium), 237 

 Sanderling {Crocethia alba), 



189, 225 

 Sandhopper (Amphipod), 



204 

 Sand-maitin [Riparia riparia), 



45, 72, 80, 86, 227, 231, 



249, 250, 251, Pis. XXVI, 



XXXV (163, 258) 

 Sand-martin Flea {Cerato- 



phyllus Styx), 62, 78, 80, 



86, 97, loi, 113 

 Sand-martin Tick, see Ixodes 



canisuga 

 Sandwich Tein {Sterna sand- 



vicensis), 155 

 Sarcocystis (Fungi), 243 

 Sarcophaga, see Flesh-flies 

 Sarcoptidae, see Itch Mites 

 Sarcosporidia (Fungi), 243 

 Scallop (Molluscs), 290 



Scarce House-martin Flea 

 {Ceratophyllus rusticus), 94 



Scaup {Ayihya marila), 173, 

 189, 190, 206 



Scenopinns fenestralis , see Win- 

 dow Fly 



Schistocephalus (Tapeworms), 



195 

 Schistosoma tidae (Flukes), 206 



Schistosomes (Flukes), 205 



Schistotaenia (Tapeworms), 



193 

 Scoters {Alelanitta) , 30, 195, 



206 

 Scottish House-martin Flea 



{Orneacus rothschildi), 92, 



104, IO8-IIO 

 Screaming Cow-bird {Molo- 



thrus rufo-axillaris), 265 

 Sea Cucumbers (Holo- 



thuria), 47 

 Sea-gulls, see Gulls 

 Seals, 19, 188, 194 

 Sedge-warbler {Acrocephalus 



schoenoboenus) , 258 

 Shag {Phalacrocorax aristo- 



ielis), 57 y 189, 195, 231 

 Shag Tick {Ixodes unicavatus), 



231 

 Sharks (Carchariidae), 11, 



Shearwater Flea {Ornithop- 

 sylla laetitiae), 63, 92, 93, 

 96, 97, 107, 115, Pis. XI, 



XXXIII (50, 242) 

 Shearwaters {Puffinus), 90, 



92, 94» I53> 241, PI. 



XXXIV (243) 

 Sheath-bill {Chionis alba), 197 

 Sheath-bills (Chioidae), 13 

 Sheep, 16, 21, 23, 54, 78, 



171, 212, 232 

 Sheep bot-fly {Oestrus ovis), 



212 

 Sheep Ked {Melophagus 



ovinus), 21, 43, 171, 213, 



PI. IX (34) 

 Sheep Tick {Ixodes ricinus), 



230, PI. XXXII (227) 

 Sheld-duck ( Tadorna tad- 



orna), 90, 183, 189, 202 

 Shore Crab {Carcinus maenas), 



204, Fig. p. 187 

 Short-eared Owl {Asio flam- 



meus), 19, 184, 225 

 Shoveler {Spatula clypeata), 



173 

 Shrew, 184 



Shrikes (Laniidac), 160 

 Shrikes (Z,ar»'wj), 1 65, 173, 184 

 Simuliidae, see Black-flies 

 Simulium aureum (Black-fly), 



219 

 Simulium latipes (Black-fly), 



219 

 Simulium venustum (Black-fly), 



218, 219 

 Siskin {Carduelis spinus), 237 

 Skuas {Stercorarius), 10, 143, 



183, 205, 253-255 

 Sky-lark {Alauda arvensis), 



221 

 Slender-billed Weaver {Tet- 



eropis pelzelni), 14 

 Small Fruit Fly {Drosophila) , 



52 

 Small Golden Cuckoo {Lam- 



promorpha caprius), 257 

 Smew {Mergus albellus), 206 

 Snails {see also Mollusc), 18, 



19.35. 178, 197. 202, 204, 



205, 206 

 Snake, 53, 216, 232 

 Snipe {Capella gallinago) , 129, 



197. 238 

 Snow-shoe Hare, 229, 231 

 Song-thrush ( Turdus erice- 



torum), 85, 165, 189, 227 

 South American Duck {Het- 



eronetta atricapilla) , 266 

 Sparrow {Passer domes ticus), 



17, 27, 39, 85, 93, 137, 



170, 205, 221, 225, 226, 



231. 235, 237, 238, 241, 



244, 248, 249, 250, 265 

 Sparrow-hawk {Accipiter 



nisus), 15, 85, 237, 256 

 Spider, 49, 245 

 Spilopsyllus cuniculi, see Rabbit ' 



Flea 

 Spiny-headed Worms (Acan- 



thocephala), 186, 178, 



188-191, 233 

 Spire Shell {Hydrobia ulvae), 



199, 200, 202, 204, 205 

 Spirillum (Bacteria), 235 

 Spirochaetes (Bacteria), 31, 



36, 238 

 Spiruroids (Worms), 185 

 Spoonbill {Platalea leucoro- 



dia), 152 

 Sporozoa (Protozoa), 160- 



170 

 Springtails, 181, 245 

 Squirrels, 14, 91, 94, 170, 



230 



