OF MADEIRA AND NEIGHBOURING ISLANDS. ^85 



of a branch even six ; frontal avicularia of large size ; lateral avicnlaria very- 

 small, only visible when the zooecia are viewed from the side ; vibracular cells 

 oblong, the grasping-organ with the extremity digitate. Ocecia covered with 

 scattered pustules. 



One small specimen found at Madeira creeping on what appeared to be 

 a fragment of the root of a seaweed, where it was accompanied by yEtea 

 anguina. Jullien and Calvet did not notice the very small lateral avicularia. 



Gabbrea Boryi [Audouin). B. 



Porto Santo and Telegraphic Cable, Madeira (Dc Noronlid). 



BUGULA NERITINA (Lilint). 



Off Funchal, especially near the coaling ship. 



BuGULA AVICULARIA [Liiuie). B. 

 Funchal Bay (^De Noronha). 



BuGULA PLUMOSA {Pallas). 



A small fragment, Porto Santo {De Noronha). 



BuGULA DITRUP^, Busk. B., W. 

 1858. Buyula Jiuhellata ?, var. biseriata s. ditnqjce, Busk, Quart. Journ. Micr. Sci. 



vol. vi. p. J 25. 

 1858. Bugula ditrupcc, id. ibid. p. 261, pi. 20. figs. 7, 8. 

 1886. BiKjula ditrupce, Hincks, " Polyzoa of the Adriatic," Ann. & Mag. Nat. Hist. 



ser. 5, vol. xvii. p. 260, pi. 9. figs. 3, 4. 

 1897. Buyula ditru^Jts, Waters, " Polj'zoa from Rapallo, &c.," Journ. Liun. Soc, Zool. 



vol. xxvi. p. 12, pi. 2. figs. 2, 3. 



This small species is by no means rare in 40-70 fathoms a little to the east 

 of Funchal. It would seem to be a true commensal. All the specimens I 

 have seen were attached to the anterior end of JJitrupw, as represented in 

 Busk's figure. Hincks and Waters, however, do not make any allusion to this 

 peculiar habitat, so probably the specimens examined by them were detached 

 from their base. 



BuGULA DBNTATA (Lamouvoiuc). (PL 36. fig. 3.) 

 1852. Bugtda dentata, Busk, Cat. Marine Polyzoa Brit. Mus. p. 46, pi. 59. 



I am indebted to Senhor de Noronha for a very fine specimen of this 

 species taken at Porto Santo, which measures 2 inches high and 3| broad. 

 I also saw a Sladeiran specimen intjie museum of the Seminario at Funchal, 

 which was erroneously named. It is an interesting addition to the Madeiran 

 fauna; its previously known range was Australia, New Zealand, Tasmania, 

 and South Africa. The slaty colour of the zoarium is a very distinctive 

 characteristic, which at once catches the eye. 



