INDEX. 
17 
Ardetta, IV, 194. 
exilis, IV, 194. 
arenaria, Calidris, IV, 196. 
arenarius, Elymus, I, 52. 
Arenetra, III, 138, 139f. 
nigrita, III, 138f. 
arenosa, Tetrix, I, 69. 
areolata, Rana, V, 22, 23. 
arge, Notropis, II, 60. 
argentatus, Larus, IV, 202. 
argenteus, Ammocoetes, II, 70. 
Ichthyomyzon, I, 52, II, 70. 
Argyreus atronasus, VI, 75*. 
nasutus, VI, 75*. 
argyritis, Hybognathus, I, 45, II, 56, 
79*, 85*. 
Argyrosomus, I, 44. 
cisco, I, 44. 
clupeiformis, I, 44, II, 54. 
hoyi, I, 44, II, 54. 
nigripinnis, I, 44, II, 54. 
ariomma, Cliola, II, 60. 
Episema, II, 60. 
aristosa, Coreopsis, II, 7. 
Aristus bucephalus, III, 150*. 
Arma, II, 77f. 
Army-worm, III, 14, 84, 139f . 
arnyi, Diadophis, V, 35. 
aromatica, Rhus, I, 28, 31. 
Aromochelys, V, 53. 
carinatus, V, 53. 
odoratus, V, 53. 
Arphia sanguinaria, I, 63. 
sulphurea, I, 63. 
tenebrosa, I, 63. 
xanthoptera, I, 63. 
Arquatella, IV, 195. 
maritima, IV, 195. 
artedi, Coregonus, II, 54. 
artemisiaefolia, Ambrosia, I, 57, III, 150f. 
Arthonia, II, 32. 
Arthoniei, II, 32. 
asclepiadis, Siphonophora, II, 7. 
Asclepias cornuti, II, 7. 
Ascomycetes, VI, 60f, 63f. 
Asellidse, I, 21. 
Asellus, I, 11, 17, 21, II, 75f, 77f, 87f, 
90, III, 30f, 36f, 37f, 41f, 43f, 
50f, 52f, 53f, 54f, 55f, 65f, 67f, 
68f, 93f. 
aquaticus, I, 11, lg. 
brevicauda, I, 8, 10, 11, 22. 
communis, I, 8, 10, II, 88. 
Description of a new species of, 
II, 90-92. 
intermedius, I, 10, 22, II, 87f, 92. 
microcephalus, 1, 11. 
militaris, II, 87f, 90. 
stygius, I, 11, 22. 
Asimina, I, 27, 28, 29, 30, 31. 
Asio, IV, 187. 
accipitrinus, IV, 187. 
americanus, IV, 187. 
asio, Scops, IV, 187, 191. 
asper, Aspidonectes, V, 52. 
Aspidoglossa subangulata, VI, 57f. 
Aspidonectes, V, 51, 52. 
asper, V, 52. 
ferox, V, 52. 
nuchalis, V, 52. 
spinifer, V, 52. 
asprellus, Pleurolepis, II, 38, III, 22*. 
asprigenis, Poecilichthys, II, 41, 75*, 
84*, III, 23*. 
Astacidse, I, 18. 
Asterella, II, 25. 
Aster puniceus, I, 59. 
Astomum, II, 19. 
Astragalinus, IV, 178. 
tristis, IV, 178, VI, 11*. 
Astur, IV, 189. 
atricapillus, IV, 189. 
Asturina, IV, 189. 
plagiata, IV, 169, 189. 
nitida, var. plagiata, IV, 189. 
Ataenius, III, 143f. 
ater, Molothrus, IV, 182, VI, 13*, 29*, 
31*, 32*. 
Atherinidae, I, 42, II, 51, 78*, 85*, VI, 
65*, 69*. 
atherinoides, Minnilus, VI, 86*, 94*. 
Notropis, II, 60, 80*, 85*. 
atlanis, Caloptenus, I, 68. 
atmodes, Heterodon, V, 44. 
atrarius, Amiurus, I, 50, II, 67. 
atrata, Catharista, IV, 190. 
atricapillus, Astur, IV, 189. 
Parus, IV, 172, VI, 8*, 28*, 30*, 
31*. 
Atrichium, II, 21. 
atricilla, Larus, IV, 202. 
atripes, Lythrurus, II, 59. 
