313 



the present species and others nearly related must then be included under the 

 genus Coneschai-ellina. 



Family Liriozoidae. 

 EpicauUdiidae Hincks^ 



The slender, elongated zooecia, which may have a single spine at the distal 

 end, are provided as a rule with scattered pores and the lateral walls with one 

 or several uniporous rosette-plates. The aperture has a broad and low sinus and 

 a weakly chitinized operculum. Avicularia and ooecia are wanting. Free, jointed 

 colonies, with the zooecia arranged in pairs or in triads; in the latter case they 

 arise from an axis consisting of kenoooecia. 



Genera. 



The colony consists of an axis of kenozooecia, each of which bears 

 two opposite triads of zooecia. Of the 3 zooecia, the longest, central 

 one has the aperture directed outwards, whilst the two outer, which 

 have a distal spine, have theirs directed obliquely inwards. .. . Liriozoa Lamarck. 



(Epicaulidium Hincks.) 



The colony consists of paired zooecia, and in each pair the slightly 

 spirally turned zooecia have their basal sides directed towards each 

 other; no spines Gemellipora Smitt^, char, emend. 



To the first genus belongs L. tiilipifera Ellis & Sol (= E. pulchrum Hincks), and 



to the latter, which we here take in a more restricted sense than Smitt, belongs 



G. eburnea Smitt. 



Family Lekythoporidae n. f. 



(PL XVI, figs. 6 a-6 e, fig. 7 a). 



The zooecia, which have no spines, are solidly calcified, thick-walled and 

 provided with a well-chitinized operculum. A strongly developed, sometimes im- 

 mersed, sometimes freely projecting, tube-shaped peristome, the aperture of which 

 is armed with one or usually with several (2 — 5) small avicularia. Scattered 

 small or large avicularia may also occur. Both the distal wall and the lateral 

 walls are provided with numerous small, scattered, uniporous rosette-plates, which 

 are situated at the bottom of shorter or longer canals. The oa;cia have the form 

 of a hemispherical expansion of the frontal wall of the peristomial tube and be- 

 come later hidden by covering calcareous layers. The colonies are free, more or 

 less strongly branched. 



To this family, which no doubt is most nearly related to the Celleporidae, I 

 must refer Lekythopora hystrix Mac GillJ, Turritigera stellata Busk^, ^Schizoporellai- 



' 24, p. 156; 25, p. 135. " 103, p. 35. » 66, p. 194; 68, p. 113, * 8, p. 130, 



