656 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 14 



unusual feature is the size of the peristomes, which reach a length of 

 as much as 0.75 mm (usually 0.40 to 0.60), and a diameter of 0.26 mm 

 (0.30 at the base). The peristomes are entirely free at the tips and only 

 rarely connate at the base, nearly erect, perforated with small pores 

 nearly to the tips and the basal half or more transversely corrugated. 

 The zooecial tubes are correspondingly large, 0.30 to 0.40 mm wide, 

 arched in cross-section, thickly perforated and transversely corrugated. 



The ovicell is irregvilarly lobate, rather flat and its surface thickly 

 punctured, enclosing a few peristomes; the ooeciostome is an erect tube, 

 distant from and smaller than the peristomes, slightly enlarging upward, 

 the aperture ovate in form and its longest dimension about equal to that 

 of the peristomes, finely wrinkled, thin-walled and not punctate. 



The large dimensions of the non-connate and non-seriate peristomes, 

 and the nature of the ovicell and ooeciostome easily distinguish this 

 species. 



Type, AHFno. 115. 



Type locality, Hancock Station 22-33, La Plata Island, Ecuador, 

 1°16'S, 81°05'10''W, shore collecting, four colonies all with ovicells, 

 Jan. 22, 1933. Another colony, with ovicell, from Hancock Station 

 136-34, Clarion Island, west of Mexico, at 32 fms. 



Tubulipora admiranda new species 

 Plate 68, figs. 5, 6, and 7 



The zoarium is rounded, slightly irregularly lobate, 10 mm broad, 

 attached over most of its dorsal side but with the edges free. The center 

 of the zoarium over a width of 4 mm bears only 5 free peristomes, due 

 to the great length of the embedded tubules ; outside of this area the 

 peristomes rise in clusters of varying size, giving the surface a lobate 

 appearance, though there are many free peristomes between the clusters. 

 In the clusters the peristomes are connate for most of their length, but 

 usually free at the tips. 



The pro-ancestrula is round and measures 0.40 mm in width ; the first 

 tubule, which arises from its side, is 0.26 mm wide and 0.78 mm long, 

 its peristome 0.55 mm in height. The succeeding tubules are remarkable 

 for their length, the embedded portion 1.0 to 2 mm in length and the 

 more or less erect peristomes usually about 1.0 mm but may be as much 

 as 2 mm. The embedded tubules average 0.40 mm in width, slightly 

 arched in cross-section, and are thickly punctate. The peristomes are 

 about 0.25 mm in diameter, the pores extending nearly to the tips, 

 slightly wrinkled, the apertures round and 0.20 mm in diameter. 



