38 CATALOGUE OF PTEROPODA. 



Cliodita fusifonnis, Quoy Sr Gaim. Ann. Sci. Nat. 1825, 75, t. 2, f. 



3, 4 ; VoT/. Uranie^ t. 6Q. 

 Clio fusiformis, Desk, in Lamk. Hist. ed. 2, vii. 427. 



Hah. Cape of Good Hope. 



3. Cliodita pybamidalis. 



Body elongate, pyramidal, white, pointed with, brown ; wings oval ; 

 head rounded, two-lobed. 



Clio pyramidalis, Quoy Sf Gaim. Voy. Astrol. ii. 371, t. 27, f. 37; 

 Desk, in Lamk. Hist. ed. 2, vii. 426. 



Hab. Amboina. — Quoy 8r Gaim. 



Fam. VI. PNEUMODERMIDiE. 



Body fusiform. Head with arms furnished with pedicellate suckers. 

 Wings 2, entire, with a central foot-like appendage placed at the 

 base of the head. Gills on the hinder part of the body. 



PneumodermidoB, GVay, Syn. Brit. Mm., 1842, 86, 92; Proc. Zool. 



Soc. 1847, 204. 

 Pterobranchia, § c. Gray, Med. Repos. 235. 

 Pneumodermi, part, D Orh. Moll. Cuba, i. 70. 

 Pneumodermes (Pneumoderma), Ferv^sac, Fab. Syst 15, 1821. 

 CliodinsB, part, Menke, Syn. 5, 1828. 

 Clioidae, part, Menke, Syn. ed. 2,9, 1830; Wiegm. Handb. Zool. 



517 (1842), ed. 2, 545. 

 Pneuraodermitae (Pneumodermites), Latr. Fam. Nat. 

 Pneumonodermoidae, Agassiz, Nomencl. 



Synopsis of the Genera. 



1. Pneumodermon. Gills lobed, at the hinder part of the body. 



2. Spongiobeanchia. Gills a prominent spongy ring, near end of 



body, 



3. Trichocyclus. Gills a ciliated ring, round the middle of the 



body. 



4. Pelagia. Gills ? Body transparent, tubercular. 



