822 MB. J. T. JOHifsoN ON THE [June 20, 



tentacles, pale brown in colour, surround a puffed-out mouth, the 

 whole covered with vibratile cilia. The polyps are very full of 

 stinging-threads (fig. III. 6, p. 823). 



" This is the species which Gray referred to Antipathes suh- 

 pinnata E. & S. It differs essentially from that species in the 

 arrangement of the pinnules and in the form of the spines." — 

 Brook, loc. cit. p. 127. 



One of my specimens 35 centira. high has a thin base 35 millim. 

 by 25 millim. From this base rise not only the large corallum, but 

 several small ones from 25 to 50 millim. high. 



This is the commonest of all the species found at Madeira. It 

 is usually attached to loose stones, but in one case within my 

 knowledge a specimen two feet high was growing upon a quaintly 

 shaped metal tankard, the whole exterior of which was completely 

 hidden from view by a crust of bryozoa, worm-cases, &c. 



Individuals of this species are often made common lodging- 

 houses for the use of a heterogeneous throng of guests. More 

 than 25 different forms, including mollusks {Ostrea cochlear and 

 Avicula tarentina), bryozoa, worm-cases, hydrozoa, Polytrema, and 

 sponges, have been seen crowding on the lower branches of a single 

 specimen ; thus offering a great contrast to specimens of Leiopathes 

 glaberrima, which are always free from parasitical attendants, a 

 difference doubtless due to the abundance of spines on the one 

 form and their absence from the other. 



What is still more curious is that a small stalked cirripede, the 

 Oocynaspis celata of Darwin, is found attached in numbers to the 

 branches of this Aphanipatlies and nowhere else. The anti- 

 patharian covers the valves of the cirripede with a thin horny 

 coat beset with minute spines. 



In Alcide d'Orbigny's list of the zoophytes of the Canary Islands, 

 in Webb and Berthelot's work, appears the name of Antipaihes 

 subpinnata Ellis & Sol. This may have been a specimen of Aph. 

 wollastoni. 



Hob. Madeira ; Selvagens or Salvages ; Canary Islands ? 



Var. PiLOSA, nov. 



Bushy, branching irregularly ; in general characters resembling 

 the typical species, but a distinct aspect is given to the present 

 form (1) by the ultimate branchlets being stouter with reference 

 to the branch from which they spring ; (2) the angle they make 

 with the branch is more obtuse ; (3) they spread in all directions 

 from the branch, whereas in the typical species the ultimate 

 branchlets have a tendency to spread in one plane. The spines 

 have much the same form as in the typical species : that is, they are 

 long, slender, pointed and directed forwards, and are arranged 

 in longitudinal rows; but in the present form they differ by 

 being longer in regard to the diameter of the branch on which 

 they are placed, and by being less closely set (fig. III. A). On the 

 lower part of the stem the spines are frequently forked at the top. 

 This variety is remarkable in this, that the stem bears numerous 



