62 PNEUMODERMONID^. 



8i/n. Clio, 0. Fcibr. ?Amphirea, ^a^w. ? Dicropteia, 

 Rajin. 



Eos. 0. borealis, Bruguiere, pi. 7, fig. 7. 



The C. borealis is very common in the Northern seas, 

 and is the food of the whale; it has been anatomically 

 described by the Baron Cuvier. Scoresby observes that 

 in swimming it brings the tops of its fins almost in contact, 

 first on one side and then on the other. 



Sj^ecies of Clione. 

 australis, Briig. borealis, Brug, 



Genus CLIODITA, Quoy and Gaimard. 



Body fusiform ; head small, hooded, or bilobed, separated 

 from the trunk by a contraction; tentacles not apparent. 



Ex. C. fusiformis, Quo^ and Gaimard, pi. 7, fig. 8. 



There are three species of this imperfectly known genus 

 figured in the " Voyage of the Astrolabe," viz. C. caduceus 

 and C. fusiformis from the Cape of Good Hope, and G. 

 pyramidalis from off Amboina. 



Species of Cliodita. 



caduceus, Quoy and Gaim. pyramidalis, Quay and Gaini. 

 fusiformis, Quoy and Gaim. 



Fam. PNEUMODERMONID^. 



Body fusiform. Head with arms furnished with pedi- 

 cellate suckers. Wings two, entire, with a central foot- 

 like appendage placed at the base of the head. Gills on 

 the hinder part of the body. 



