No. 7.] HINCKS NEW SPECIES POLYZOA. 395 



MUCRONELLA PR^LONGA, N. SP. 



Zoa'cia very long, quincimcially arranged, wider above than 

 at the base (elongate-ovate, sometimes appearing almost subtubu- 

 lar), convex, depressed below, rising towards the orifice ; surface 

 thickly covered with punctures, shining (the glistening appear- 

 ance due to the presence of an epitheca) ; orifice suborbicular, 

 peristome elevated round it, carried out in front into a very 

 prominent process, often much thrown back and elongated, 

 sometimes simply pointed, sometimes hi- or trimucronate ; on the 

 inner side of it a single, small, sharply- pointed denticle; the 

 upper margin produced in the centre into a sharp spinous pro- 

 cess. Avicularia none. Oacium (?). 



Zoarmm forming a whitish, subcircular patch on shell. 



Loc. Queen Charlotte Islands (Dr G. M. Dairmn^. 



Smittia, Hincks. 



SMITTIA SPATIIULIPERA, \'. SP. 



Zocecla large, ovate, quincuucial, moderately convex, separated 

 by raised lines, surface reticulato-punctate ; orifice arched above, 

 lower margin straight and within it a large bifid tooth ; peri- 

 stome raised and thickened, and produced below into a spout-like 

 sinus, within which is a short spatulate (ivicidarluni, mandible 

 directed downwards. Omcium large, immersed, closely united to 

 the cell above; surface roughened, punctured round the edge. 



Zoarium a brownish crust on shell. 



Loc. Houston-Stewart Channel. Queen Charlotte Islands [D}\ 

 G. M. Dcncson). 



[additional.] 



3Je.mi5Ranipora, Do Blainville. 



MEMBRANIPORA PROTECTA, N. SP. 



Zoa'cui contracted above, expanded below, disposed ratiier 

 irregularly in lines, set closely together, front wall wholly mem- 

 branous, margin smooth ; 2 erect spines (sometin»es bifid) at the 

 top, below them on each side a single bifid spine, and below these 

 2 large, branched, antler-like spines, which meet over the aper- 

 ture; numerous ac'icuhwin intersjxM'sed amongst the cells, placed 

 on a distinct area ; beak elongate, slanting upwards, mandible with 

 a triangular base, the upper portion long, slender, setiform. 

 Ooccium (?). 



Loc. Virago Sound, Queen Charlotte Islands (/>>•. G. M. 

 Daicsoii). 



Ann. & Mag. N. Hist. Ser. 5. Vol. x. 



