520 BULLETIN 100, UNITED STATES NATIONAL MUSEUM 



FILISPARSA SINUOSA, new species 



Plate 76, figs. 4-6 



Description. — The zoarium is free, much compressed, bifurcated; 

 the branches are wide sinuous, with the tubes on one side only and 

 arranged in quincunx. The dorsal bears transverse wrinkles. The 

 tubes are visible, separated by a little salient thread, very slightly 

 convex; the peristome is orbicular, quite salient, very thin. 



Measurements. — Diameter of peristome, 0.20-0.22 mm.; and width 

 of branches, 1.00. 



Affinities. — This species differs from Filisparsa orakeiensis Stoliczka 

 in its transversally wrinkled dorsal. It differs from Filisparsa rugosa 

 and from Filisparsa elegans in the absence of salient peristomes. 

 Occurrence. — 



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



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

 D. 5579. Sibutu Island, Darvel Bay, Borneo; 4° 54' 15" N.j 

 119° 09' 52" E.; 175 fathoms; fine S., Co.; 13° C. 

 Cotypes. —C&t. No. 8329, U.S.N.M. 



Genus TUBIGERINA Canu, 1911 



TUBIGERINA RUGOSA, new species 



Plate 77, figs. 1-3 



Description. — The zoarium encrusts shells, and bryozoa (Adeonella) . 

 The branches are narrow, ramified, divergent, and formed of 3 or 4 

 longitudinal rows of tubes. The fascicles are salient and formed of 

 2 or 3 tubes arranged transversally. The tubes are little distinct, 

 separated by a furrow of little depth; their surface is much wrinkled 

 transversally. The orifices are elliptical, transverse, with thick 

 peristome. 



Measurements. — Diameter of peristome, 0.24-0.30 mm.; distance 

 of fascicles, 0.80-1.00; and width of branches, 0.30-0.80. 



AifLnities. — This species is very probably a Tubulipora but we have 

 not yet discovered the ovicell. The branches are quite variable and 

 sometimes uniserial in the vicinity of the protoecium. The trans- 

 verse arrangement of certain fascicles causes us to classify this species 

 in the genus Tubigerina Canu, 1911, discovered in the Rocanian of 

 Argentina, but this is not a natural genus. On one specimen one of 

 the fascicles contained eight tubes in two rows. The extremity of 

 another colony is free. 



Occurrence. — 



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. 



Cotypes— Cat. Nos. 8330, 8331, U.S.N.M. 



