HENRY SIDEBOTTOM ON LAGENAE OF THE SOUTH-WEST PACIFIC. 205 



Lagena staphyllearia Sch wager sp. var. (PI. 18, fig. 19). 



Test compressed (lower part angular in outline) with five very 

 small protuberances arranged, as shown in the drawing, on the 

 edge of the shell. The entosolenian tube starts straight and 

 then bends towards the back of the test. Only four occur, and 

 they vary a little in outline. Locality : Nos. 3, 11. 



Lagena sp. incert. (PI. 18, fig. 21). 



I have only made an outline drawing of this form, because I 

 am not sure what its natural condition may be. The test 

 is compressed, and nearly all the examples are covered with 

 shell-growth, which has a sugary appearance. The colour is 

 a light cream. In those that are partially free from this in- 

 crustation, the test appears to be more or less in a hispid 

 condition. The carina, starting at the orifice, often ends abruptly, 

 as show r n in the illustration, but sometimes it gradually diminishes 

 until it is lost about half-way down the test. Two or more 

 spines adorn the base. It may be a compressed form of L. hispida. 

 Locality : Nos. 23, 29, 39, 40, 41. 



Lagena sp. incert, (PI. 18, fig. 22). 



I am puzzled with this form, not knowing whether to treat it 

 as L. marginata in which the keel has split, thus forming two 

 long loops, one on either side of the test ; or, as L. auriculata in 

 which the loops extend almost to the neck. It will be noticed 

 that the loops are quite separate at the base. Three occur. The 

 specimens are mixed with those of another form. Locality : One, 

 must have been found at No. 43 or No. 44. 



? Lagena sp. (PL 18, figs. 23, 24). 



I believe this to be a foraminifer, but it is very doubtful if it 

 be a Lagena. There was a small test, on the same square, which 

 had every appearance of being the initial chamber of the same 

 species. Unfortunately, in using a high-power lens for examina- 

 tion, I accidentally crushed the specimen ; but I bad previously 

 made an outline drawing of it, see pi. 18, fig. 24. 



The large test, pi. 18, fig. 23, is not compressed. The orifice is 

 a rosette in form, and the upper part of the test is covered with 

 a raised irregular mesh. Rows of tubular projections run at 



