BEYOZOA OF THE PHILIPPINE REGION 531 



This species differs from Mecynoecia longipora in its smaller micro- 

 metric measurements, its great irregularity, in the sporadic presence 

 of false verticells and in the ramification at right angles of its branches. 

 The tubes are often invisible when the transverse ridges are thick 

 and close together. 

 Occurrence. — 



D.4807. CapeTsiuka, Sea of Japan; 40° 36' 12" N.; 140° 36' E. 

 D. 5137. Jolo Light, Jolo; 6° 4' 25" N.j 120° 58' 30" E.; 30 



fathoms; S. Sh. (common). 

 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. (common). 

 Cotypes.— Cat. Nos. 8345-8348, U.S.N.M. 



MECYNOECIA LONGIPORA MacGillivray, 1895 



Plate 80, fig. 10 



1895. Entalophora longipora MacGillivray, A Monograph of the Tertiary 



Polyzoa of Victoria, Transactions of the Royal Society of Victoria, 



vol. 4, p. 140, pi. 20, fig. 14. 

 1922. Mecynoecia longipora Canu and Bassler, Studies on the Cyclostomatous 



Bryozoa, Proceedings of the U. S. National Museum, vol. 61, p. 13 



pi. 1, fig. 9-11. 



This species differs from Mecynoecia rectangulata in its visible 

 tubes, in its larger peristomial diameter (0.16 mm. and not 0.12 mm.) 

 and in its branches diverging at a smaller angle. The figured ovicelled 

 specimens were found in April, 1908. The species is especially 

 common in the Sulu Sea. 

 Occurrence. — 



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



co. S. (common). 

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



47' 10" E.; 21 fathoms; co. S. Sh. (common). 

 D. 5217. Anima Sola Island, between Burias and Luzon; 13° 

 20' N.; 123° 14' 15" E.; 105 fathoms; crs. gy. S. 

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



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

 D. 5577. Mount Dromedario, north of Tawi Tawi; 5° 20' r 3G" 

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

 Plesiotype — Oat. No. 7374, U.S.N.M. 



MECYNOECIA PROBOSC1DEA Milne Edwards, 1838 



Plate 80, figs. 7-9 



1838. Puslulopora proboscidea Milne Edwards, Memoire but lcs Crisies, Annates 

 Sciences naturcltes, ser. 2, vol. 9, p. 219, pi. 12, fig. 2. 



