313 



the present s[)ecies and others nearly related must then be included under the 



genus Conescharellina. 



Family Liriozoidae. 



Epicaiilidiidae Hincks*. 



The slender, elongated zowcia, 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 roselte-plates. The apertui'e has a broad and low sinus and 

 a weakly chitinized operculum. Avicularia and oa'cia are wanting. Free, jointed 

 colonies, with the zocrcia arranged in pairs or in triads; in (he latter case they 

 arise from an axis consisting of kenoooecia. 



Genera. 



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

 two opposite triads of zoa-cia. 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. 



' (Epicanlidium Hincks.) 



The colony consists of paired zoa>cia, and in each pair the slightly 

 spirally turned zoa^cia have their basal sides directed towards each 

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



To the first genus belongs L. tiilipifera P^llis & Sol (= E. piilchruin Hincks), and 

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

 G. elniriiea Smitl. 



Family Lekythoporidae n. f. 



(PI. XVI, figs. 6:1— Gc, fig. 7n). 



The zowcia, which have no sjjines, are solidly calcified, thick-walled and 

 provided with a wcU-chitinized operculum. A strongly develoj)ed, sometimes im- 

 mersed, sometimes freely i)rojecting, 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-j)lates, which 

 are situated at the bottom of shorter or longer canals. The owcia 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 famih', which no doubt is most nearly related to the Celleporidae, I 

 must refer Le/v-;///ioy)ora /i(/.s7r(x Mac Gill. ^ Tiirritigera stellata Busk^, >Sc/i(:o/3ore//rt« 



' 24, p. 156; 2,-), p. 135. ^ 103, p. 35. ' 66, p. 194; 68, p. 113. * 8, p. 130. 



