148 



Billard (1907 a p. 190) hat Lamouroux' Typus, der ganz ungenügend beschrieben und 

 abgebildet war, nachuntersucht und versichert, daß er mit den von ihm beschriebenen und 

 abgebildeten Exemplaren des Travailleur identisch ist. Für das Aussehen von S. distans 

 (Lmx.) haben wir uns also an diese Figuren von Billard zu halten, von denen besonders 

 Fig. 11 mit Inabas Abbildung eine große Ähnlichkeit hat. Schon der Name distans weist 

 darauf hin, daß die Theken hier sehr weit stehen; daher gehört auch Xuttings ,S. gracilis'' 

 höchst wahrscheinlich zu dieser Art und nicht zu S. gracilis Hassall. 



Für Japan neu. 



,Nr. 22. Sertularia sp. (Inaba 1890 Fig. 60, 61, 62.) 



Trophosome. Stem very slender, hardly 10 mm high, without branches. with a pair 

 of hydrothecae in the lower part of each Joint. Hydrothecae opposite, those of the same 

 Joint united with each other. attached to one side of the stem, tubulär, the lower part 

 united with the stem and the fellow-hydrotheca, the upper part turned obliquely outwards, 

 becoming more slender and terminating with a Square mouth, which bears four teeth on 

 its margin, one on either side and the reniaining two ahove and below. 



Gonosome. Unknown. 



Colour. Transparent. 



Locality. Shishigahana, Sagami Sea, 6 m, on dead roots of sea-weeds. 



This .species was collected towards the end of July; there are no reproductive bodies. 

 The characteristic of this species lies in the manner of attachment of the hydrothecae, 

 and although no difference in thickness can be detected between the two ends of each 

 Joint, the portion lying above the hydrothecae is very much longer than the portion 

 lying below them. The mouth of the hydrotheca has four teeth on the margin, and its 

 form is, strictly speaking, that of a spherical rhombus and not of a Square. These two 

 points easily distinguish this species from Nr. 20 and Nr. 21 [S. gracilis and S. turbinata].' 

 (Inaba 1890.) 



Sertularia fiircata Trask 1857. 



(Fig. 12G— 128.) 



Nr. 41 Sertularia sp. Inaba 1892 a fig. 6— 10. 

 Sertularia furcata. Torrey 1902 p. G6 tab. 8 fig. 73—75. 



— pulchella. Nutting 1904 p. 55 tab. 2 fig. 6-7. 



— furcata. Torrey 1904 p. 31. 



— — . Fräser 1911 p. 72 tab. 5 fig. 5. 



Fräser hat darauf hingewiesen, daß Nutting diese Art zu Unrecht mit d"Orbignys 

 Dynamena pulchella zusammengeworfen hat. 



S. furcata war bisher nur von der Westküste Nordamerikas bekannt. 

 Für Japan neu. 



,Nr. 41. Sertularia sp. (Inaba, Kishu Hydroids, 1892a Fig. 6, 7, 8, 9, 10.) 

 Trophosome. Stem slender, without branches, less than 5 mm high, with a pair of 

 hydrothecae on each Joint, which is slender. Hydrothecae tubulär, opposite and in pairs, 

 touching each other in front and separated behind, the greater part of the tube attached to 

 the .stem, the upper part slightly curving out on either side; mouth of the hydrotheca 

 directed obliquely upwards, with two teeth on the margin, one on the side, the other in front. 



