20 H. H. GRAN AND K. YENDO. M.-N. Kl. 



= Syndendrium diademet Ehrenberg: 1854, Taf. 35, A, 

 XVIII, 13. 



= (\ distans var. suhsecunda Grunow: in Van Heuhck. 

 1880-85, PI. 82 bis, fig. 6. 



= C. paradoxum var. Lüdersii Engl: 1883, p. 11. 

 = C. sp. Schutt: 1888, p. 37. 



= C. curvisetus Cleve: 1894, p. 12, PI. i, tig. 5 (non alior). 

 — Do.: 1896b, p. 29, fig. 12. 



= C. paradoxum Schutt: 1895, p. 37. 

 = C. Clevei Schutt: 1895, P- 4°i ^'g- 8 a, b. 

 = C. groenlandiciim Cleve: 1896a, p. 7, PI. 2, figs. 3 — 5. 

 = C. Ralfsii Schutt (non Cleve): 1896, p. 53, fig. 63 B. 

 The Japanese specimens in our possession are all with spores, and 

 we are thus enabled to determine them with the utmost certainty. The 

 specimens from Volcano Bay have both the terminal horns and the lateral 

 setae armed with minute processes arranged spirally. 



Log. Volcano Bay; Misaki; Misumi (Yendo). Enoshima (Schröder). 



Sect. II. Diversa Ostenp. 

 Chaetoceras diversum Cleve. 



Cleve: 1873b, p. 9, PI. 2, fig, 12. — Gran: 1906, p. 87, 

 fig. 107. — Schröder: 1906, p. 337. 



== C. diversum var. tenuis Cleve: 1897 a, p. 21, PI. 2, fig. 2. 

 = C. diversum var. mediterranea Schröder: 1900, p. 27, 

 PI. 2, fig. 1. 

 The occurrence of this species in Japanese seas has up to the present 

 been reported by Schröder only. 



Loc. Enoshima; Akashi; F'ormosa Channel (Schröder). 



Chaetoceras laeve Leud.-Fortji. 



Leuduger-Fortmokel: 1893, P- 38- PI- 6, fig. 2. — Osten- 

 feld: 1902, p. 237, fig. 16. — Schröder: 1906, p. 351, p. 337. 

 — Okamura : 1907, p. 99, PI. 3, figs. 23, 24. 



Loc. Prov. Shima (Okamura). Misumi (Yendo). Enoshima 

 (Schröder). 



Chaetoceras furca Cleve. 



Cleve: 1897a, p. 21, PI. i, fig. 10 — Schröder: 1900, 

 p. 28, PI. 1, fig. 2 — Karsten: 1905—07, p. 160, Taf. XXXII. 

 fig. 13 — Gran: 1906, p. 87. fig. 108. 



