CONTENTS OF VOL. II. 
2. Body naked. a. With terminal suckers. Hirudo, 
Glossopora, Erpobdella, Pontobdella, Phyllene, 
Trochetia. 6. Planariade, Gordiuside. 
Order I1.—Habitation internal: 
Entozoa. 
Tribe I. Mouth and anus at the opposite extremities. 
Filaria, Hamularia, &c: 
Tribe II. Mouth and anus not at the opposite extre- 
mities. 
A. Echinorynchus, Heeruca. 
B. Tenia, Cysticercus. 
C. Monostoma, Amphistoma. 
D. Ligula. 
ae 
RADIATA. 
Class I.—Echinodermata. 
Order I.—Intestine open at both extremities. 
Section I. With suckers. 
Tribe I. Echinida. A. Scutella, Clypeaster, Fibu- 
laria, Echinoneus, Galerites, Ananchytes, Spatan- 
gus. B. Cassidulus, Nucleolites, Echinus, Cida- 
rites. : f 
Tribe II. Fistulida. Holothuria, 
Sect. II. Destitute of Suckers. 
Molpadia, Menyas, Sipunculus, 
606 
607 
ib: 
ib: 
ib: 
