130 



,Xr. 47. Sertularella sp. (Inaba, Misaki Hydroids Addenda 1892c Fig. 11. 12.) 



Trophosome. Stein 50 mm higli, with numerous bianches, arranged more or less in 

 one plane, neighbouring branches uniting with eacli other and forming a network; joints 

 distinct, with a hydrotheca directly below the Joint. Hydrothecae alternate. soniewhat 

 cylindiical in shape, the bioad lower part united with the stem, the nariower upper half 

 free and curving upwards, with about thirteen annuli below the narrowest point (the narro- 

 west part lies a little below the mouth), with three blunt teeth on the inner side of the 

 niarffin of the mouth, one on the front-wall and one on either lateral wall. Mouth with 

 four teeth, quadrate in form. 



Gonosome. Unknown. 



Colour. Light yellowish brown. 



Locality. Shishigahana, west of Misaki, Sagami Sea, on other species of Hydroids. 



This beautiful species was obtained in April, but unfortunately the reproductive 

 Organs are wanting. It has all the distinctive characteristics of the genus Sertularella, in 

 a way that cannot be seen in other species, and is valuable on that account." (Inaba 

 1892 c.) 



Sertularella Inabai Stechow 1913. 



(Fig. 101 — 103.) 



Nr. 155 a Sammlung Doflein. 



Nr. II. Diphasia sp.? Inaba 1890 tig. 29— 31. 

 Sertularella Inabai. Stechow 1913 p. 141. 



Von dieser Form, die zu den von Inaba entdeckten neuen, aber unbenannten Arten 

 gehört, lasse ich die Beschreibung in Inabas Originalwortlaut folgen. Die Stellung zum 

 Genus Diphasia ist freilich irrig; die 4 Zähne des Thekenrandes mit entsprechendem Opercular- 

 apparat zeigen aufs deutlichste, daü diese Art zu Sertularella gehört, und innerhalb dieser 

 Gattung zu der interessanten kleinen Gruppe mit bedornten Gouotheken. Ich benenne 

 diese Form zu Ehren ihres ersten Beobachters, der sie in vorzüglicher Weise beschrieben 

 und abgebildet hat. 



Der Stamm an unseren Exemplaren ist unverzweigt und monosiphon. 



Gonotheken gefunden im Oktober. 



Fundort: Sagamibai, vor Aburatsubo. 11. Oktober 1904. 



Tiefe: Durch Taucher, also etwa 5 — 20 m. 



,Nr. 11. Diphasia sp.? (Inaba 1890 Fig. 29, 30, 31.) 



Trophosome. Stem about 20 mm high, growing from a creeping 

 hydrorhiza, consisting of distinct joints, each Joint being somewhat 

 oblique and the wliole forming a zig-zag. Hydrothecae one to each 

 Joint, directly underneath the constriction, alternate, goblet-shaped, 

 the expanded lower half attached to the stem, the upper half some- 

 „. what narrower and curved away from the stem; mouth of the hydro- 



Sertularella Inabai Stechow. thecae with four teeth. Tbere are in addition three tooth-shaped 

 Nat. Größe. (I. Fig. 29.) processes on the inner surface of the theca near the mouth. 



