162 HISTORY OF ENTOMOLOGY. 
2. Ueonata 3 . (Orthoptera Oliv.) Maxilla covered by 
an obtuse galea or lobe. 
3. Synistata 11 . (Neuroptcra L., excluding the Libel- 
luli?ia, and taking in Termes L. and Thysanura 
Latr.) Maxilla geniculate at the base and connate 
with the labium. 
4. Piezata c . {Hymenoptera L.) Maxilla corneous, 
compressed, often elongate. 
5. Odonata 1 *. [Libellulina M C L.) Maxilla corneous, 
toothed, two palpi. 
G. Mitosata 6 . [Myriapoda Leach.) Maxilla corneous, 
vaulted, not palpigerous. 
7. Unogata f . [Pulmonary Arachnida Latr.) Maxilla 
corneous, armed with a claw. 
* ** 
8. Polygonata 5 . (Isopod and Branchiopod Crustacea 
Latr.) Palpi mostly six ; Maxilla many within the 
labium. 
9. Kleistognatha 11 . [Brachyurous Decapod Crustacea 
Latr.) Many Maxilla without the labium, closing 
the mouth. 
10. Exochnata'. (Macrurous Decapod Crustacea Latr.) 
Maxilla many without the labium, covered by 
palpi. 
11 Derivation uncertain. Perhaps Avhuv, A long and narrow space 
or tract. 
b l.wtoTYipi, To stand together. c Tlu^u, To press. 
11 Ol*s, A tooth. r M/to?, A thread. 
f Unogata is probably a mistake for Onychoid ; from Oz/nf, A claw. 
K Doubtless for Polygnatha; from Hn'hv;, Many, and Tuxdoc, A jaw. 
'• K^uoto;, Closed, and Tvxdo;. 
' Efrw, Without, and Yvxdo;. 
