424 



NAOKATSU VANAGI AND YAICHIRO OKADA : 



22. liuf/ula Èie rit ina (Linnaeus). 

 Sertularia neritina, Linnaeus 175s, Syst. Nat., ed. X, 38. 



Bugula neritina, Oken 1S15, Lehl., der Nat., Abt. 2. — Heller 1867, Ad. Bry. f 

 90.— McCoy 1881. Prod. Zool. Vict., decade VI, 41, pi. lix, fig. 7.— Busk 1884, Chall. 

 Rep., vol. X, pt. XXX, 42.— Waters 1887, Ann. Mag. Nat. Hist., S, XX, 91, pi. iv, figs. 

 3, 15. — Carus 1889, Prod. Faun. Medit., vol. ii, 6. — Ortmann 1890, Jap. Pry , 24, pi. 

 i, fig. 17.— Phillips 1899, Willey's Zool. Res., IV, 440. — Robertson 1905, Univ. Calif. 

 Pub. Zool., vol. II. 266, pi. ix, fig. 47, pi. xvi, fig. 97. — Calvet 1906, Bull. Mus. 

 Paris, 12 — Thornely 1907, Ree. Ind. Mus., vol. I, 183. 



Acamarchis neritina, Lamouroux 1816, Hist. Poly. Coral., 58, pi. iii, fig. 2. 



Celluliti ' in neritina, Johnston 1847, Prit. Zooph., 340, pi. lx, figs. 3, 4. 



Very numerous colonies represented in the collection. It is quite 

 a common species in the shallow water of the Misaki coast, found 

 attached on submerged timber and other objects. Localities : Yokohama 

 and Yokosuka harbours (attached to bottom of ship) ; Tokyo Bay ; 

 Kushimoto in Prov. Kii. The colonies are usually of a reddish brown 

 or a dark brown colour, sometimes bearing a purple tint. Busk has 

 given that the specimens he had of the species from Australia and Asia, 

 were always in possession of avicularia. The same did not exist in 

 Japanese specimens, so far as came under our examination. 



23. lingula puffefi Robertson, var. utnhell iformis, n. var. 



Pl. VI., %. 8. 



Bugula flabellata, Robertson 1900, Proc. Wash. Acad. Sci., vol. II, 321. 

 Bugiila pitgeti, Robertson 1905, Univ. Calif. Pub. Zool., vol. II, 271, pi. x, figs. 

 53. 54 ; pl- xi. fig- 55- 



The chief difference between typical B. pitgeti and this new variety 

 lies in the habit of growth and in the absence of the additional spine 

 on marginal zocecium. The zoarium consists of a number of dichoto- 

 mously dividing, narrowly flabellate, frond-like branches truncate at the 

 free end. The branches form several superiorly expanding groups, all 

 which basal ly converge to the common point of origin of the branches 

 making up the zoarium. The zocecia show on the summit a small 



