Xlviii CONTENTS OF VOL. II. 



Page 



Subdivision II. ANNULOSE ANIMALS DESTITUTE 



OF ARTICULATED LIMBS FOR LOCOMOTION. 



Order 1. Habitation external. 



Section I. CIRRHIPIDES. 



General Description. 590 



Tribe I. Pedunculated. 



1 . With five testaceous valves. Lepas, Otion, Cineras. 593 



2. Testaceous valves exceeding five. Scalpellum, Po- 

 licipes. 595 



Tribe II. Sessile. 



1. Tubicinella, Coronula, Chelonobia, Balanus, Acasta. ib. 



2. Creusia, Conia, Clisia. . . . 599 



3. Pyrgoma. . ib. 



Section II. ANNELIDES. 



Tribe I. Body furnished with a shell. 



A. Free. 1 . Siliquaria. 2. Dentalium, Caecalium. 600 



B. Fixed. 1. Penicillus. 2. Galeolaria, Vermilia, 

 Serpula, Magilus, Spirorbis, Heterodisca, Lobatula. 601 



Tribe II. Body destitute of a shell. 



A. Branchiae external 



1. With antennae. Aphroditae, Nereides/ Eunicae, 



Amphinomae. . . 602 



2. Destitute of antennae. Clymene, Pectinaria, Sabel- 

 laria, Terebella, Amphitrite, Arenicola. . . 603 



B. Aerating organs internal. 



1. Body with filaments. Thallassina, Lumbricus, Cir- 

 ratulus, Nais, Stylaria, Tubifex, Derris. . ib. 



