260 SIDNEY F. HARMER. 



magnifica); Hutton, 'Trans. Proc. N. Zealand 

 Inst./ xxiii, 1890, p. 104. 



Synonyms of Encrusting Form (var. magnifica^ Busk, 

 MS.) (figs. 5, 26). 



Membranipora magnilabris, Hutton, 1. cit., l! 



p. 190. 

 Steganoporella neozelanica, Hiucks, 'Ann. Nat. 

 Hist.'" (5), ix, 1882, p. 119; Waters, 'Quart. 

 Journ. Geol. Soc, xliii, 1887, p. 50. 

 S. magnilabris, Busk, 'Challenger Rep.,' pt. xxx, 

 1884, p. 75 (Tongatabu); Hutton, 'Trans. Proc. 

 N. Zealand Institute,' xxiii, 1890, p. 105, 

 Cryptocyst inserted into the basal wall, angulated and 

 slightly thickened at the commencement of its descending 

 portion. Median process with a spreading border, its cavity 

 very deep, vertical, narrow above, but expanding transversely 

 until it equals the diameter of the tube at its junction with 

 the latter. Opening of the tube vertical, usually surrounded 

 by the descending part of the cryptocyst, but sometimes 

 completed by the basal wall, b zooecia not found, a opercula 

 with four strong teeth on the main sclerite, and with a more 

 or less complicated system of additional sclerites. 



Vincularian Form. 



(a) New Zealand, Mr. Busk (0. M.). 



(h) New Zealand (Wanganui, Napier), Miss E. C. 



Jelly (C. M., 24.5.95). 

 (c) New Zealand (Hawke's Bay), Hincks Coll. (C. M,, 



13.5.99). 



Var. magnifica. 



(a) New Zealand (Napier, Foveaux Straits, Stewart 

 Island), Miss E. C. Jelly (C. M., 24.5.95). 



(b) Tongatabu, Sir E. Home, Busk Collection (B. M., 



99,7.1, 400, 401). 



