100 BEPOKT— 1884. 



Family III. Hoeneeid.e. 

 Hoenera, Lamouroux. 



Family IV. Lichexopokidje. 

 Licuenopoea, Defrance. Domopora, D'Orbigny. 



Class POLYZOA. 



= Betozoa, Ehrenberg, Reuss, Roemer, Manzoni, "Waters, &c. 

 = Bnjozoa in part of American writers on Palaeozoic Polyzoa. 



Sab-class Holobeanchia, E. Ray Lankester. Group a. Ectopeocta, 



Nitsohe. 



Order Gymxolemata, Allman. 



Poltptaeia Infuxdibulata, Gervais, ' Ann. des. Sc. Nat.' 1837. 

 Polyzoa Infundibulata, Busk, ' Brit. Mus. Catalogue.' 



Sub-order, Cheilostomata, Busk. 



= Cellepoeina, Ehrenberg. 



' Orifice of the zocecium closed by a movable opercular valve. Ova 

 usually matured in external marsupia (ova-cells). Avicularia and vibra- 

 cula (appendicular organs), frequently present.' — Hincks' ' Brit. Mar. 

 Polyzoa,' vol. i. p. exxxvi. 



Family I. Aeteid.e, Hincks, Smitt. 



In Mr. Busk's classification which prefaces the ' Crag Polyzoa ' Mono- 

 graph, published in 1850, the genus Aetea is one of the genera of the 

 group Hippatkoidce. But Smitt and also Hincks place the species of 

 Aetea in a family by themselves. Mr. A. W. Waters says, 1 ' the difficulty 

 is very great as to the position of Aetea, as it has relationships with the 

 Cheilostomata, and also with Ctenostomata, in having a collar, as seen in 

 the Naples specimens, and which Smitt pointed out in 1867 ; and 

 whether it will have to be placed in anew sub-order — Stolonata, Cams, or 

 Stolonifera, Eblers — is yet problematic' Mr. Hincks, however (op. tit. p. 

 2), admitting that the Aeteidaz constitute a peculiar group, agrees ' with 

 Smitt in ranking them as a family distinguished by the Ctenostomatous 

 cast of its structure. On the other hand, it must be noted that they are 

 allied to Eucratea through the character of the polypide and in some 

 other points.' 



The family contains a single genus, and so far as my knowledge goes 

 I have but few notices of fossil species ; nevertheless, in making a full 

 record of the whole of the fossil Polyzoa, it appears to me nnwise to pass 

 over those genera of which we have few fossil representatives, especially 

 as one of the objects of this Report is to furnish the student with as full 

 a list of synonyms, both of genera and species, as the means at my disposal 

 will allow. 



1 ' Bryozoa of the lay of Naples,' Ann. Maj. Xat. Hist., February 1879. 



