HISTORY OF ENTOMOLOGY. 457 
In a table of Invertebrate articulate animals distri- 
buted according to their external organs?, this learned 
Entomologist has arranged his Lntoma differently, under 
two Types divided into four Classes,—Thus : 
Tyre I. Polygnatha. Tyre II. Pseudognatha. 
Class i. Crustacea. Class iii. Crustaceo-Arachnida. 
Decapoda. Branchiopoda. Branchiopoda. 
Stomapoda. Phyllopa. Peecilopa. 
Amphipoda. Lophyropa. Pycnogonides. 
Lamodipoda. 
Isopoda. 
Myriapoda, 
Class i. Insecta. 
Masticators. Suckers. Class iv. ‘Arachnida 
Thysanura. — Lepidoptera. Pulmonariz. 
Coleoptera. Suctoria. Holetre. 
Orthoptera. Hemiptera. Pediculariz. 
Neuroptera. Diptera. 
Hymenoptera. Pupipara. 
Rhiphiptera. 
Here he places the myriapods (Polypods) in the Crus- 
tacea, and the Parasita, after Lamarck, which surely is 
no improvement, as an Order, under the name of Pedi- 
cularia, in the Arachnida. He, very properly, divides, 
Insecta into Mandibulata and Haustellata, and has made 
the Pupipara a separate Order. 
Having given you these tables of the Orders, I shall 
proceed to give those of his subordinate groups arranged 
under each. This I have already done, to save space, 
in the Arachnida and Insecta aptera. 
© Anim. Invertebr. Articul. Ann. du Mus. 1821. ad calc. 
