BRYOZOA OF THE PHILIPPINE REGION 317 



Biology. — One of our specimens covering a surface of 6 square 

 centimeters contained 18 superposed lamellae. Exteriorly the color 

 is gray but on the broken edge it is green; it is the caleite itself that 

 is pigmented. In tropical seas the richness of coloration is much 

 greater than in northern seas. 



Affinities. — In its zooecial and zoarial aspects this species ap- 

 proaches very much Stylo poma spongites, Pallas, 1766, from the Gulf 

 of Mexico; but the zooecia are twice as large, the small avicularia 

 are adjacent to the apertura and the interzooecial avicularium is not 

 spathulated. 



Occurrence. — On Tridacna from an unknown Philippine locality. 



Holotype.— Oat. No. 8076, U.S.N.M. 



Genus SCHIZOPODRELLA Canu and Bassler, 1917 



SCHIZOPODRELLA CUCULLATA, new species 



Plate 35, fig. 5 



Description. — The zoarium encrusts shells. The zooecia are dis- 

 tinct, separated by a furrow, somewhat elongated or orbicular; the 

 frontal is convex and covered with very small trcmopores. The 

 apertura is small, transverse with a wide triangular, short rimule; 

 the peristome is complete, salient and formed of a broad lip in front 

 of the apertura. The ovicell is small, triangular, in the form of a 

 hood, smooth, not closed by the operculum. Between the apertures 

 there is a spathulate avicularium with a much enlarged beak and 

 turned towards the top. 



Measurements. — 



Apertura (J* ^°- 07 mm ' Zooecia (f z = ; 60 mm ' 



(la -0.08 mm. lZz=0.25mm. 



This small species is quite distinct, and we believe it ought to be 

 figured in spite of its rarity. Only the figured specimen has been 

 found; it was dead. 



Occurrence.— D. 5144. Jolo Light, Jolo; 6° 05' 50" N.; 121° 02' 

 15" E.; 19 fathoms; co. S. 



Holotype.— Cat. No. 8077, U.S.N.M. 



Genus SCHIZOPORELLA Hincks, 1880 



SCHIZOPORELLA COSTULATA, new species 



Plate 36, figs. 10, 11 



Description. — The zoarium encrusts shells and bryozoa (Adeonellop- 

 sis). The zooecia are distinct, separated by a deep furrow, elongated, 

 elliptical; the frontal is somewhat convex, smooth, surrounded by 

 areolar pores and costules. The apertura is suborbicular, without 

 visible cardelles. The operculum is schizoporellid. 



Measurements. — 



Apertura I 1 " ^ mm ' Zooecia (f z -°' 50 mm " 



Ua -0.10 mm. Us -0.24 mm. 



