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



Lagena Chasteri Millett. 

 Lagena Chasteri Millett, 1901, p. 11, pi. 1, fig. 11. 

 See my remarks on the type-form + p. 398. 



Lagena Chasteri Millett (var. ?). 



Lagena Chasteri Millett (var. ?) Sidebottom. 1912, Journ.. 

 Q.M.C., p. 398, pi. 1G, figs. 32-34. 



Many occur, but I am quite unable to separate this variation 

 from the type, for the curious little " stopper " at the orifice is 

 never so pronounced as in Mr. Millett's figure, and is often 

 apparently absent. Taking the type-form and the variation to- 

 gether, for they are mixed on the slides, they occur as follows : 

 Locality ; Nos. 1-4, 22, 34, 38, and frequently at Nos. 42-44. 



Lagena pannosa Millett var. 



Lagena pannosa Mille;t var. 1901, p. 11, pi. 1, fig. 14. 



It is probable that two or three examples of this variation are^ 

 present. Locality : Uncertain. 



Lagena intermedia Sidebottom. 



Lagena intermedia Sidebottom, 1912, Journ. Q.M.C., p. 399,. 

 pi. 17, figs. 1-3. 



Locality : Nos. 3, 11, 12, 23, 24, 29, 32, 39-41. 



Lagena quadralata Brady. 



Lagena quadralata Brady, 1881, Qua/rt. Journ. Micr. Sci., vol. xxL 



(N.S.), p. 62. 

 Lagena quadralata Brady, 1884, p. 464, pi. 61, fig. 3. 



In the Challenger Report Brady states that this Lagena is. 

 allied to the Lagena alifera of Reuss. I should prefer to con- 

 sider it as a variety of L. lagenoides Williamson var. tenuistriata 

 Bradv, for we know that this latter occurs in the trifacial 

 condition (see * PI. 19, fig. 5), and therefore it is not surprising 

 to find it with four equidistant keels ; also I have a good example 

 of Jj. lagenoides with five equidistant keels. The specimen found 

 is very small and not in the best condition. I think the wings 

 are tubular, but cannot be certain. On the same slide there- 



