xlvill CONTENTS OF VOL. I 
Subdivision II].—ANNuLOsE ANIMALS DESTITUTE 
OF ARTICULATED LIMBS FOR LOCOMOTION. 
Order 1.—Habitation external. 
Section I.-—CrrruHIPipEs. 
General Description. 
Tribe I. Pedunculated. 
1. With five testaceous valves. Lepas, Otion, Cineras. 
2. Testaceous valves exceeding five. Scalpellum, Po- 
/ 
licipes. 
Tribe II, Sessile. 
1. Tubicinella, Coronula, Chelonobia, Balanus, Acasta. 
2. Creusia, Conia, Clisia. 
3. Pyrgoma. 
Section II.—ANNELIDEs. 
Tribe I. Body furnished with a shell. 
A. Free. 1. Siliquaria. 2. Dentalium, Cecalium. 
B. Fixed. 1. Penicillus. 2. Galeolaria, Vermilia, 
Serpula, Magilus, Spirorbis, Heterodisca, Lobatula. 
Tribe II. Body destitute of a shell. 
A. Branchiz external 
1. With antenne. Aphrodite, Nereides, Eunice, 
Amphinome. 
2. Destitute of antenne. Glymene, Pectiharia: Sabel- 
laria, Terebella, Amphitrite, Arenicola. 
B. Aerating organs internal. ' 
1. Body with filaments. Thallassina, Lumbricus, Cir- 
ratulus, Nais, Stylaria, Tubifex, Dervis. 
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590 
593 
595 
ib. 
599 
ib. 
600 
601 
602 
603 
ib. 
