Polyzoa of Queen Charlotte Islands. 19 



Schizoporella insculpta, n. sp. (PI. XVI I. fig. 5.) 



Zoarium foliaceous and bilaminate, or incrustlng. Zooecia 

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

 cuncial, depressed, separated bj raised lines, sutures sliallow; 

 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; 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 ooecium 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). 



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

 Zooecia quincuncial, very regularly arranged, very convex, 

 ovate, much elevated centrally below the mouth, the wall 

 sloping steeply down to the margin of the cell ; surface dense, 

 smooth, rather glossy, areolated round the edge, ridges radi- 

 ating towards the centre ; orifice orbicular, Avith a small central 

 sinus, not contracted at the opening ; peristome not ele- 

 vated ; immediately below the orifice, at one side of the sinus, 

 a rostrum bearing on one side a pointed avicularium, the beak 

 very slightly bent at the extremity, mandible directed up- 

 wards, the rostrum rising into a short mucronate point behind 

 the avicularium ; very commonly on the front of the cell, near 

 the bottom, a much-raised avicularium (mounted on a promi- 

 nent elevation) with a pointed mandible directed straight out- 

 wards. Ooecium rounded, smooth, much broader than high, 

 with a tall oral arch filled in by a calcareous plate. 



Off Cumshewa, in 20 fathoms, forming a brownish spread- 

 ing crust. 



Schizoporella pristina, n. sp. (PL XVII. fig. 6.) 



Zooecia ovate, irregularly disposed and shaped, moderately 

 convex, separated by raised lines ; surface thickly punctured, 

 presenting (in older states) a reticulated appearance ; orifice 

 rounded above, tlie lower margin curving out below the oper- 

 cular denticles into a wide rounded sinus, so that the mouth 



