FORAMINIFEEA OF THE PHILIPPINE AND ADJACENT SEAS. 103 



Subfamily Textulariinae. 



Genus TEXTULARIA Defrance, 1824. 



TEXTULARIA SAGITTULA Defrance. 



Plate 20, figs. 2-4. 



Polymorphum sagitlula Soldani, Testaceographica, vol. 1, pt. 2, 1791, pp. 120 



133, fig. T. 

 Textularia sagittula Defrance, Diet. Sci. Nat., vol.32, 1824, p. 177, vol. 53, p 



344; Atlas, Conch., pi. 13, fig. 5. — H. B. Brady, Rep. Voy. Challenger, Zoology' 



vol. 9, 1884, p. 361, pi. 42, figs. 17, 18. 



Typical material of this species was fomid at the following localities : 

 Sulu Arcliipelago, Tawi Tawi Group; vicinity of Jolo; China Sea off 

 southern Luzon; ojQP northern Cebu; off western Samar; Verde Is- 

 land Passage; between Negros and Siquijor; Mindoro Strait; east 

 coast of Luzon; and vicinity of Darvel Bay, Borneo. 



Some of the specimens measured as much as 4 mm. in length. 

 Two interesting specimens are figured, plate 20, figs. 2-4, which 

 had evidently been broken and started a new growth. In one case 

 the axis of the new portion of the test is in the same line, but has been 

 twisted about so that the chambers of the later part are at right 

 angles to their former position. In the second the new portion of 

 the test arises from the side of the earlier portion. 



Such specimens show clearly that the test of the foraminifera is 

 really an internal one, and that under certain conditions new growth 

 may take place from any part. 



Textularia sagittula — Material examined. 



TEXTULARIA SAGITTULA Defrance, var. ATRATA ^ushnian. 



Plate 20, fig. 5. 



Textularia sagittula Defrance, var. atrata Cushman, Bull. 71, U. S. Nat. Mus., 

 pt. 2, 1911, p. 7, figs. 2-5 (in text). 



This variety has occurred at the following localities in few numbers : 

 Tara Island; Sulu Sea; off northern Cebu ; off southern Luzon; China 



