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BULLETIN 100, UNITED STATES NATIONAL MUSEUM 



The species of this family are very rare. We know only three 

 and each characterizes a special genus. The known genera are 

 Liriozoa, Lamarck, 1812, Pasythea (Lamouroux) Busk, 1884, and 

 Dittosaria Busk, 1866. 



Genus LIRIOZOA Lamarck, 1812 



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

 bears two opposite triads of zooecia. Of the three zooecia, the 



longest, central one has the aper- 

 ture directed outwards, whilst the 

 two outer, which have a distal 

 spine, have theirs directed obli- 

 quely inwards. " (Levinsen, 1909.) 

 Genotype. — Liriozoa {Cellaria) 

 tulipifera Ellis and Solander. 

 Recent. 



Genus PASYTHEA (Lamouroux, 1812) 

 Busk, 1884 



The colony consists of paired 

 zooecia and in each pair the slightly 

 spirally turned zooecia have their 

 basal sides directed toward each 

 other; no spines. 



Genotype. — Pasythea (Gemelli- 

 pora) eburnea Smitt, 1873. Recent. 

 Cellaria tulipifera Solander, 1786, 

 A-B. Liriozoa tulipifera Ellis and has been classed as a genotype by 

 Solander, 1786. A. Portion of zoa- three different authors, Liriozoa 

 num. B. A single triplet of cells Lamarck) 1812> Pasythea Lamour- 

 The colonv consists of an axis of , _ . 7 . . 



kenozooecia, each of which bears two oux > 1812 > and Epicaulldium 

 opposite tracts of zooecia. Of the Hincks, 1881. It is impossible to be 

 three zooecia the longest, central one sure of the priority of the authors 

 has the aperture directed outward, of 1812 . Busk, 1884, thinks that 



whilst the two outer, which have a dis- •, • T i . T 



, , . . ,,.■,. , , ,,. , it is Lamouroux, but Levmsen, 



tal spine, have theirs directed obliquely . . ' 



inward. (A, B. After Hincks, 1881.) 1909, believes it is Lamarck. 



Smitt, 1873, discovered an allied 

 species, Gemellipora eburnea and created the genus Gemellipora for it 

 and other species. Busk, 1884, thinks that G. eburnea ought to be 

 placed in the same genus as Cellaria tulipifera and he selected as 

 the genotype of Gemellipora, G. glabra Smitt, 1873. MacGillivray, 

 1895, Waters, 1898, Maplestone, 1901, Waters, 1904, and others 

 agree with Busk's conclusion. We are ignorant of the anatomy of 

 the two species considered and even the larva so that it is still 



Fig. 170. — Genus Liriozoa Lamarck, 

 1816 (Levinsen, 1909) 



