CIRRIPEDIA— BORRADAILE. 135 



13. Chthainalus stellatus (Poli), 1795. 



Chthamalus stellatus (Poli), Darwin, Balanidae, p. 455, pi. XVIII, fig. 1 (1854). 

 With some doubt, I refer to this species six specimens, much eroded and with 

 obliterated sutures, whose soft parts have not been preserved. They are from the Bay 

 of Islands, New Zealand. 



14. Coronula diadema (L.) 1767. 



Coronula diadema (L.), Darwin, Balanidae, p. 417, pi. XV, fig. 3 ; pi. XVI, figs. 1, 2, 7 (1854). 



The overlapping of the base of the shell of this species by the skin of the whale 

 on which it stands might seem to be due to the growth of the epidermis of the host. 

 A very interesting specimen in the British Museum shows that this is not the case. 

 Some specimens of Balanus crenatus have settled upon a piece of oilcloth, and, no doubt 

 by the growth of their shells, have scaled off the surface of the fabric and caused it to 

 rise over their bases just as the skin of the whale is caused to rise. 



Several specimens were taken on Megajytera nodosa off New Zealand, associated 

 with Conchoderma auritum. 



