BRYOZOA OF THE PHILIPPINE REGION 533 



Our ovicelled specimens are not in a perfect state of preservation 

 as one is incomplete and the other is partially altered. The speci- 

 mens were ovicelled February, 1908. 

 Occurrence. — 



D. 5141. Jolo Light, Jolo; 6° 9' N.; 120° 58' E.; 29 fathoms; 



co. S. 

 D. 5145. Jolo, Sulu Archipelago; 6° 4' 30" N.J 120° 59' 30" E.; 



23 fathoms; co. S., Sh. 

 D. 5577. Mount Dromedario, north of Tawi Tawi Group; 5° 20' 

 36" N.; 119° 58' 51" E.; 240 fathoms; crs. S. 

 Cotypes.—C&t. No. 8353, U.S.N.M. 



MECYNOECIA BREVICULA, new species 



Plate 80, figs. 5, 6 



Description. — The zoarium encrusts shells; it is flabelliform and 

 surrounded by a very wide basal lamella. The tubes are thin, very 

 long, isolated, indistinct at their base. The ovicell is small, convex, 

 very short, wide; the oeciostome is orthogonal and smaller than the 

 aperture of a tube 



Measurements. — Diameter of peristome, 0.12 mm.; diameter of 

 oeciostome, 0.08; dimensions of ovicell, 0.36 mm. (length); 0.40 mm. 

 (width). 



Aijinities. — Without the presence of the ovicell, it is absolutely 

 impossible to determine this charming little species. It has the 

 Berenicea growth form with very long tubes. Our specimens were 

 living and in reproduction on February 7, 1908. 



Occurrence.— D. 5135. Jolo Light, Jolo; 6° 11' 50" N.; 121° 08' 

 20" E.; 161 fathoms; fine co. S. 



Cotypes— Cut. No. 5135, U.S.N.M. 



Genus MICROECIA Canu, 1918 



MICROECIA SINUOSA, new species 



Plate 80, figs. 3, 4 



Description. — The zoarium encrusts shells and nullipores; the 

 branches are sinuous with undulations more or less close together. 

 The tubes are little distinct, convex; the peristomie is short, oblique 

 or quite erect; the peristome is thin and orbicular. The apertures 

 are arranged in quincunx and very close together. The ovicell is 

 very small, convex, arranged between 5 or 6 tubes. 



Measurements. — Diameter of peristome, 0.15 mm.; distance of 

 apertures, 0.48; separation of apertures, 0.48; diameter of branches, 

 0.80-1.20. 



Affinities. — Proboscina ziczac D'Orbigny, 1851, has an analogous 

 zoarial form but the peristomes are much more scattered from each 

 2182—29 35 



