122 Acephala; Tiinicata. 



Fam. ^K Tuhicola, ( Les Tublcolees , Lam»; Aclesmacea, 

 Blainv. ) 



Teredo , L. ^ Lam. 

 navalis, L. 

 clava, Gm. (Fislulana gregata , Lam.) 



Teredina , Lam, 



Furcella, Ok. (Clausaria , Synops. ed, i. ; Closson- 

 naria , ler. j Septaria , Lam. ) 



Clavagella , Lam. 



Adspergillum. (Asper^illum, Lam. ; Arytaene, Ok. 

 Clepsydra , Sclium. ) 

 iavanum, Lam. (Serpula penis , L.) 



Classis IV. Tunicata. 

 (Heterobranchiata , Blainv. ; Saccophora , Cray. 

 Les Tuniciers, Lam.) 



Ordo 1. Tethya. (Ascidies tethides, Savi^ni.) 



Fam. 1. Ascidiacea. ( Holobranchia , Gray. ; Tuniciers 

 libres, Lam. j Tethyes simples , Savign. ) 



Boltenia , Savign. ^ Mac L^eay. 



Cystingia, Mac Lcay. 



Ascidia, L. ; Cuv. ; Lam. (Cynthia, Savign.) 



Caesira , Savign. 



Stycla , Savign. 



