ENUMERATION OF ANIMALS. 17 



Yll. MARSIPOBRANCHIATES. 



48. HYPEEOARTIA. (Lamprey-eels, or nine eyes.) 



49. HYPEROTRETI. (Suckers, or hags.) 

 Useful products : Food, (lamprey-eels.) D. 1. 

 Useful traits : Scavengers, (hags.) 



VIII. LEPTOCARDIANS. 



60. CIRROSTOMI. (Amphioxus.) 

 Modes of capture. D. 6. 



IX. INSECTS. 



61. HEX APOD A. (Bees, butterflies and moths, flies, beetles, bugs and 

 lice, grasshoppers and crickets, dragon-flies and 

 caddice flies.) 



Useful products : 



Food of aborigines. 



Honey, (bees, «&c.) D. 1. 



Wax, (bees, &c.) D. 30. 



Baits, (flies, bees, dragon- flies, beetles and their larvae^ 

 grasshoppers, &c.) D. 5, B. 45. 



Silk, (moths.) D. 8. 



Coloring material, (cochineal insect, &c.) D. 29. 



Blistering preparations, (Spanish -flies, &c.) D. 30. 



Wings used in the arts, (beetles.) D. 19. 

 Useful traits : 



Puncture trees, producing galls, manna, lac, &c. 

 Injurious traits : 



Injurious to vegetation, (numerous species.) 



Internal and external parasites, (flies.) 



62. MYEIAPODA. (Centipedes, millipedes.) 



Useful products : Food of aborigines, (eggs.) D. 1. 

 Injurious traits : Venomous, (centipedes, millipedes.) 



X. ARACHNEANS. 



^ 63. AEACHNIDA. (Spiders, scorpions, mites, &c.) 

 I Useful products : 



Fine threads used by opticians, (spiders.) 



Silk, (spiders.) 



