Q'i Acephala; Bostrychopoda. 



Messula, Leach. 

 Acasta , Leach. 



Ordo 2. Bostrychopoda pedunculata. 



(Lepadicea, Blainv. ; Polybranchia, Latr. ; Conchae- 



forniia pedicellata, Schuni. ; Cirrhipedes pedoncules, 



Lam. ; Campylosoniata , Leach. ) 



Fam. k. PolUcipedia, ( PoUIcipedidae , Gray. ) 



Scalpellum , Leach. (Polylepas, A, Blainv. ) 

 Smilium, Leach. 



Pollicipes, Hill; Lam.: Gray. (Polylepas, B, Blainv.; 

 Ramphidione , Schum.) 



cornucopiae , Leach. (Lepas pollicipes , Gm. ) 

 Calantica, Gray. 

 Capitulum , Klein. ( Mitella , Eschh. ; Polylepas , B, 



Blainv. ) 

 Lithotrya, Sow. (Litholepas, Blainv. ; Absia, Leacli.) 

 Ibla, Leach. 

 Conchotrya, Gray. 

 Brisnaeus , Leach, 

 Clyptra , Leach. 



Farn. 5. Anatiferacea, ( Anatiferidae , Gray. ) 

 Malacotta, Schum. (Gymnolepas, A, Blainv. ; Otion, 



Leach; Branta, Ok.) 

 bivalvis, Gray. (Otion Cuvieri , Leach , Lepas 



aurita , L. ) 

 Pamina, Gray. 

 Senoclita , Schum. (Gymnolepas, B, Blainv.; Ci- 



neras, Leach.) 

 Octolasmis, Gray. (Heptalasmis, Leach.) 



