BRYOZOA OF THE PHILIPPINE REGION 521 



Forma ENTALOPHORA Lamouroux, 1821 



ENTALOPHORA MAJOR, new species 



Plate 77, fig. 8 



Description. — The zoarium is free, cylindrical, bifurcated. The 

 tubes are distinct, convex, separated by a shallow furrow, very large, 

 wrinkled transversally ; the orifice is orbicular; the peristome is thin; 

 the peristomie is oblique and salient. 



Measurements. — Diameter of peristome, 0.30-0.34 mm.; distance 

 of orifices, 1.60; and diameter of branches, 1.50. 



Affinities. — We believe that this species is the same as Entalophora 

 australis Busk, 1875, but in Busk's figure the diameter of the peristome 

 is 0.20 mm. and in MacGillivray's figure it is 0.36 mm. Under these 

 conditions we preferred to regard the present species as new until we 

 know more about the specimens described by Busk and by MacGilli- 

 vray. Depth has no influence on the vigor of the colonies. 

 Occurrence. — 



D. 5137. Jolo Light, Jolo; 6° 04' 25" N.; 120° 58' 30" E.; 20 



fathoms; S. Sh. 

 D. 5141. Jolo Light, Jolo; 6° 09' N.; 120° 58' E.; 29 fathoms; 



co. S. 

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



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

 D. 5577. Mount Dromedario, north of Tawi Tawi; 5° 20' 36" 

 N.j 119° 58' 51" E.; 240 fathoms; crs. S.; 12.4° C. 

 Holotype. —C&t. No. 8332, U.S.N.M. 



ENTALOPHORA ARCUATA. new species 



Plate 77, figs. 9-11 



Description. — The zoarium is free, cylindrical, thin, rectilinear, 

 bifurcated. The tubes are distinct, separated by a little salient 

 thread, little convex, quite porous; the peristomie is long, oblique, 

 arched; the orifice is orbicular; the peristome is thin. 



Measurements. — Diameter of peristome, 0.16-0.18 mm.; distance 

 of orifices, 2.00-2.24; and diameter of branches, 0.48. 



Affinities. — The distance of the orifices is quite variable and on 

 one of our figures it becomes as great as 2.80 mm. This is a charming 

 and elegant species; it is more slender and more regular than Entalo- 

 phora proboscidea Milne Edwards, 1838. Unfortunately not a single 

 one of our 25 specimens was ovicelled. Depth has no influence on 

 the vigor of the specimens. 

 Occurrence. — 



D. 5219. Mompog Island, Marinduque; 13° 21' N.J 122° 18' 



45" E.; 530 fathoms; gn. M.; 10.4° C. 

 D. 5478. Tacbuc Point, Leyte; 10° 46' 24" N.; 125° 16' 30" 

 E.; 57 fathoms; Sh. (common). 

 Cotypes.—C&t. No. 8333, U.S.N.M. 



