HENRY SIDEBOTTOM ON LAGENAE OF THE SOUTH-WEST PACIFIC. 189 



"*" PI. 18, fig. 16. Extremely rare, only one or two being found. 

 Locality ; Uncertain. 



"i" PI. 18, fig. 17. Locality-. Nos. 1-3, 15. Three examples at 

 two or perhaps three of the four stations indicated ; also six at a 

 few other uncertain localities. 



+ PI. 18, fig. 18. Locality: Nos. 1, 3, 13, and several others. 

 Very rare. 



** PI. 18, fig. 19. Several have the central spine at the base of 

 the same length as the other two. Locality : Nos. 2, 3, 6-8, 10, 

 11, 24, 34-36. 



Lagena marginato-psrforata Seguenza (PI. 16, figs. 23-25). 

 Lagena marglaato-perforata Seguenza, 1880, p. 332, pi. 17, fig. 34. 



Very numerous. The variety with no keel is rare. The shape 

 of the test varies a good deal as regards compression and length. 

 In a few cases, fine lines, running the length of the test, make 

 their appearance. At the edge of the test, the markings are 

 sometimes arranged in a line. Locality : Nos. 1, 2, 4, 5, 7-15, 19, 

 20, 22-25, 29, 38-40, 42-44. 



PI. 16, fig. 23. This is nearly circular in section near the base, 

 and becomes compressed as the orifice is approached. Tube 

 straight. Ptare. Locality : No. 14. 



PI. 16, fig. 24. In this example fine pores are seen, but with 

 few exceptions the centre of each face of the test is free from 

 them. One specimen is in the trifacial condition. Locality ; 

 Nos. 23-25, 29, 33, 36, 38, 39. 



PI. 16, fig. 25. Test well compressed, subcarinate. Except for 

 the two lines of pores that run round the test close to its edge, 

 the faces are almost free from them. The shell is partially 

 clouded. Fairly frequent. Locality : Uncertain. 



Lagena Wrightiana, Brady. 



Lagena Wrightiana Brady, Quart. Journ. Micr. ScL, vol. 21,1881, 



p. 62. 

 Lagena Wrightiana Brady, 1884, p. 482, pi. 61, figs. 6, 7. 



The central part of the faces of the test is not always smooth. 

 Very rare. Locality : Nos. 37, 42, 43. 



