BRYOZOA OF THE PHILIPPINE REGION 535 



Harmer in his Siboga report cites it from Station 164-1° 42' S. ; 

 130° 47' E.; 32 M. and Station 282-N. E. of Timor— 27-54 meters, 

 Torres Strait. Busk indicates South Australia. 



Plesiotypes.— Cat. No. 8357, U.S.N.M. 



DIAPEROECIA INDISTINCTA, new species 



Plate 81, figs. 8, 9 



Description. — The zoarium encrusts nullipores, bryozoa, and shells; 

 it is of a beautiful clear violet color. The branches are irregular, 

 convex, sublinear or quite expanded. The tubes are indistinct; the 

 peristomes are orbicular, thin, somewhat salient; they are arranged 

 in rather regular quincunx. The ovicell is suborbicular, quite convex, 

 traversed by 5 or 6 tubes; the oeciostome is very small, isolated,, 

 orthogonal. 



Measurements. — Diameter of peristome, 0.12-0.14 mm.; distance 

 of peristomes 0.34-40; separation of peristomes, 0.40-0.50. 



Affinities. — The basal lamella is not visible at the extremity of 

 the branches. Sometimes the zoarial surface is wrinkled trans- 

 versely. One of our specimens creeps over both sides of a shell. 



In the widened form of a lobe of a figured colony, this species 

 resembles Tubulipora clavata MacGillivray, 1884, from Australia 

 but differs in its larger peristome (0.12-0.14 mm. and not 0.08-0.10 

 mm.) and in the rarity of the club shaped branches. On one of our 

 specimens the tubes are slightly visible. 

 Occurrence. — 



D. 5137. Jolo Light, Jolo; 60° 04' 25" N.; 120° 58' 30" E.; 20 



fathoms; S. Sh. 

 D. 5147. Sulade Island, Sulu Archipelago; 5° 41' 40" N.; 120° 



47' 10" E.; 21 fathoms; co. S., Sh. 

 D. 5151. Sirun Island, Sulu Archipelago; 5° 24' 40" N.; 120° 

 27' 15" E.; 24 fathoms; co. S., Sh. 

 Cotypes.— Cat. Nos. 8358, 8359, U.S.N.M. 



DIAPEROECIA ROSEA, new species 



Plate 82, figs. 9-13 



Description. — The zoarium is free, bifurcated with the tubes on a 

 single side (Filisparsa growth form) ; the dorsal face is convex, 

 wrinkled concentrically and bears small columns of support (rooting 

 columns). The tubes are short, convex, distinct; the peristomie is 

 slightly curved and terminated by an orbicular, thin peristome; the 

 peristomes are arranged in rather regular quincunx. The ovicell is 

 elliptical, very convex, pierced by 5 to 8 tubes; the oeciostome is 

 small, sublateral, somewhat recurved. 



Measurements. — Diameter of peristome, 0.20 mm.; width of 

 branches, 0.8. 



