CLASS II.— INTESTINA— ENTOZOA, Rudolph. 
This class, so far as has been observed, is destitute of any true 
circulation, though there are obscure vestiges of nerves. Most of 
the genera live only in the interior of other animals. 
They are divided into two orders. 
Class. 
Intestina. . 
Order. 
{ 1. Intestina cavitaria 
2. Intestina parenchymata 
ORDER I. — Intestina Cavitaria — Nematoidea, Rudolph. 
Genus. 
Subgenus. Example of Species. 
Filaria, L 
Trichocephalus . . . . 
{ 
Cucullanus 
Ophiostomus , 
Ascaris 
Strongylus 
Spiroptera 
Physaloptera 
Scelorostoma, Blain. 
Fil. Medinensis, Gra, 
1. Trichocephalus, \ T di Rud . 
proper ) r 
2. Trichostomus. 
3. Oxyuris Ox. curvula, Rud. 
C. lacustris, Gm. 
0. cystidicola. 
As. lumbricoides, L. 
Stron. equinus, Gm. 
Sp. strumosa, Nits. 
See Rud. Syn. 29. 
1. Scelorostoma, Blain. 
2. Liorhynchus, Rud. 
Linguatula 
Prionoderma 
Lernsea. 
Nemertes, Cuv 
Tubularia, Renimeri. 
1 . Lernsea, prop. . . 
2. Pennella, Oken . . 
3. Sphyrionis, Cuv. 
4. Anchorella, Cuv. 
5. Brachiella, Cuv . . 
6. Clavella, Oken. . . 
7* Chondracanthus, 
Laroch 
Opliiocephalus, Quoy & G. 
Cerebratula, Renimeri 
} 
. Cucullanus ascarhoides 
L. branchialis, L. 
Pen. filosa, Gm. 
Chondracanthe lisse, Q,uoy&G. 
Lernsea adunea, Strsem. 
B. Thynni, Cuv. 
Lernsea uncinata, Mull. 
Lernsea radiata, Mull. 
. Nem. Borlasii, Cuv, 
