89 



Gonosonie. Gonophores with short stalks, borne on liydrorhiza, l)ottle-sliapetl, broad 

 above and gradually nairow below, with 8 or 4 circular f'unows around the body of the 

 gonotlieca, mouth at the top, with straight margin or with about 3 projections. 



The above descriptioii applies probably to the feniale organ. The character of the 

 Contents cannot be made out distinctly, owiiig perhaps to the lateness oi' the season. In 

 Bale's description the reproductive organs are given as unknown. 



Colour. Colourless, almost transparent. 



Locality. Misaki. — Soutii of Sugashima (Shima), about 6 m. 



Date. Gonothecae found in July. 



The stem is very delicate and about 20 mm high. This species agrees very well with 

 the description of Bale, the only difference being tliat Bale does not mention the nemato- 

 phore above the hydrotheca, but since this appears nierely like a simple opening, it is 

 liable to be overlooked. Possibly Bale examined dried specimens, and moreover his figure 

 appears to reproduce it; I have to leave some doubt on this point. At any rate this species 

 must be regarded as a curious form among the genus Pluraularia.' (Inaba 1890, 1892c.) 



Anteiinella secundaria (L. 1788). 



Kr. 1603, 1701 Sammlung Dofleiii. 



Nr. 23. Plumularia sp. Inaba 1890 fig. 63— 64 ; 1892b. 

 Antennella secundaria. Stechow 1909 p. 84. 

 ,Nr. 23. Plumularia sp. (Inaba 1890 Fig. 63, 64.) 

 Trophosome. Stem very slender, without branches, somewhat curved forwards, and 

 growing out crowded from a creeping hydrorhiza, with two forms of alternating joints, 

 one of which bears the hydrothecae. Hydrothecae shallow, bowl-shaped, comparatively 

 large, with straight edge, and separated from each other by two intervening joints. Nemato- 

 phores slender and elongated, 1 pair present on the back and above the hydrotheca, 

 each borne on a special stalk, 3 more in a line below the hydrotheca, of which 1 is 

 situated directly below it, while the other 2 lie in the next Joint. 

 Gonosome. Unknown. 

 Colour. Yellowish brown. 



Locality. West of Misaki, Sagami Sea, 5 m, an dead roots of sea-weeds, Mytilus etc. — 

 South of Sugashima (Shima), about 6 m. 



The stem does not reach 10 mm in height, and when growing on shells this species 

 may be mistaken for the hairs. From its structure it would be more correct to say that 

 it is stemless rather than branchless. The presence of special stalks for the paired nemato- 

 phores beliind the hydrotheca deserves special notice. CoUected in January; there are no 

 reproductive organs." (Inaba 1890.) 



Plumularia setacea (L. 1758). 

 Nr. 357a, 360d, 1607a Sammlung Doflein. 



Nr. 4. Plumularia setacea (L.) Inaba 1890 fig. 8—10. 

 Plumularia setacea. Stechow 1909 p. 79. 

 ,Nr. 4. Plumularia setacea (L.). (Inaba 1890 Fig. 8, 9, 10.) 

 Colour. Nearly transparent. 



Locality. West of Misaki, Sagami Sea, about 6 m, on oyster shells, together with sponges. 

 Date. Gonothecae found in January. 

 Abb. d. II. Kl. d. K. Ak. d. Wiss. III. Suppl.-Bd. 2. Abh. 12 



