

Polyzoa of Queen Charlotte Islands. 447 



Schtzoporella longirostrata, n. sp. (PL XVII. fig. 4.) 



Zocecia large, ovate, disposed in lines, moderately convex 

 (sutures shallow) ; surface roughened or minutely granulated, 

 covered with an epitheca ; orifice arched above, lower margin 

 extended into a wide, rounded, and shallow sinus, which occu- 

 pies about three fourths of the width ; peristome thin, some- 

 times elevated at each side ; on one side of the cell, generally 

 a little below the orifice, an elongate pointed avicularium, 

 the mandible (which is broad at the base and tapering above) 

 directed obliquely downwards, usually turned slightly out- 

 wards. Ocecium rounded, depressed in front, thickly punctured, 

 with a shallow oral arch. 

 . Off Cumshewa, on shell. 



A curious diversity in the shape of the orifice occurs in 

 this species. It is commonly as described in the diagnosis ; 

 but interspersed amongst the normal zooecia are others in 

 which the orifice is of a narrow elongate form, the sinus being 

 deep and pointed, and less distinctly marked off from the rest 

 of the oral opening than in the other case. The shape of the 

 mouth in these cells is very regularly obovate. When covered 

 with its epitheca this species is of a uniform light brown 

 colour, and the granulose sculpture is almost concealed. 



Schtzoporella tnsculpta 7 n. sp. (PL XVII. fig. 5.) 



Zoarium foliaceous and bilaminate, or incrusting. Zocecia 

 large, ovate, or narrow-oblong (often much elongated), quin- 

 cuncial, depressed, separated by raised lines, sutures shallow; 

 surface vitreous, glossy, thickly covered over its whole extent 

 with punctures ; orifice arched above, the lower margin almost 

 entirely occupied by a wide, very shallow sinus j peristome 

 thin, moderately raised, extended in front (beyond the sinus) 

 so as to form a small chamber, in which is a rounded orifice 

 (? avicularian) . Ocecia profusely developed, very large (cover- 

 ing about two thirds of the cell above), elongate, rounded 

 above, with a tall oral arch, thickly covered with slight granu- 

 lated ridges, which radiate from the opening to the base, 

 sometimes punctured round the base. 



Virago Sound, attached to stems, from which it rises in free 

 foliaceous expansions ; Cumshewa Harbour. [Vancouver Is.] 



The ocecium is sometimes extended at the top into a disk- 

 bearing process, by which it is attached to the cell above 

 (PL XVII. fig. 5 a). 



Schtzoporella tumulosa, n. sp. (PL XVIII. fig. 2.) 

 Zocecia quineuncial, very regularly arranged, very convex, 



