ON RECENT POLYZOA. 507 
Sus-orper. CHEILOSTOMATA, Busi. 
Diviston I. STOLONATA, Carus. 
Family I. teide, Busk & Hincks. 
Genus. Altea, Lamz. 
Family II. Eucratiide, Busk (pt. Hincks). 
Genus. Eucratea, Lame. Genus. Pasythea, Lame. 
Hippothoa, Lame. - Brettia, Dyster. 
” 
Family III. Chlidoniade, Busk. 
Genus. Chlidonia, Savigny. 
(‘ Challenger ’ Report, p. 1.) 
Family I. teide 
= Aitews, Snutt, Hincks 
= ScrUPARIAD® (pars), Busk, ‘ Brit. Mus. Cat.’ 
= Srotonata (pars), Carus. 
‘Zocecia tubular, with a subterminal membranous area; partly erect 
and free, partly decumbent and adherent; uniserial.’ — Challenger 
Report, p. 1. 
1 It may be well to note that the characters of this family as given 
_ above from Mr. Busk differ in some respects from those of Mr. Hincks 
(Brit. Mar. Pol.’ p. 1), but chiefly in the fact that Mr. Hincks includes 
in his diagnosis the following: ‘Tentacular sheath terminal above in a 
circle of sete, which are everted during the expansion of the polypide.’ 
It is thus seen that the Aiteide connect together two groups—the 
Cienostomata on the one hand, and the Cheilostomata on the other. Pro- 
fessor Smitt, Mr. Hincks, and Mr. A. W. Waters (‘ Bay of Naples Bry..,’ 
1879) have already remarked on the peculiar structural features of this 
group, which has been fully referred to in the Fifth Report on Fossil 
Polyzoa (‘ Brit. Assoc. Rep.’, 1884). 
_ As in my previous Reports, I shall furnish the characters of the families, 
and the genera only of recent polyzoa, as given either by Mr. Hincks or 
Mr. Busk, but it will be impossible to furnish details of the species. 
Genus 1. Altea, Lamourous 
= AncuinariA, Lamk., Johnston, Busk, 1849 
, = Favcaria, Oken 
= Airna, Busk (‘ Brit. Mus. Cat.’), Smitt, Hincks, Waters, &c. 
‘Zocecia calcareous, tubular, erect, with a membranous area on one 
side ; distributed along a more or less adherent, creeping fibre, dilated at 
tervals; orifice terminal. Ocecia, none.’— Brit. Mar. Polyzoa, p. 3. 
‘ Orifice semicircular, subterminal.’— Busk, ‘Challenger’ Report, p. 2. 
1. Aitea anguina, Linn., ‘ Brit. Mar. Poly.,’ ‘ Challenger’ Report. 
2. ,, recta, Hincks, ‘ Brit. Mar. Poly.,’ p. 6. 
3. ,, truncata, Lansb., ‘ Brit. Mar. Poly.,’ p. 8. 
4. ,, dilatata, Busk, ‘ Brit. Mus. Cat.,’ pt. 1. 
