HENRY SIDEBOTTOM ON LAGENAE OF THE SOUTH-WEST PACIFIC. 399' 



PI. 16, fig. 33. In this the surface is not so polished as in 

 PL 16, fig. 32. 



PI. 16, fig. 34. The test is a good deal roughened, and the 

 pores show much more plainly. 



The specimens are placed under the above heading provisionally,, 

 until the exact nature of the shell-wall can be ascertained by 

 sections. Pather rare. Locality : Exact stations uncertain. 

 Taking these and the type form together, they occur at various 

 stations, including Nos. 20, 21. 



Lagena intermedia sp. nov. (PI, 17, figs. 1-3). 



There are thirty-one specimens brought together on the slide,, 

 eleven of which belong to these gatherings, and as they agree so 

 well in their chief characteristics I have given them a specific 

 name. Many of them agree with Brady's Challenger drawing, 

 fig. 20, pi. 57, which he calls an intermediate form, resembling 

 L. crenata and L. semistriata. 



The specimens vary in contour, and are nearly all transparent. 

 There is a ridge running round the base, and immediately above 

 this is a series of grooves (more or less pointed at the top) encircling 

 the lower part of the test. The entosolenian tube is straight. 

 The base of the test is covered with an irregular, mesh -like set of 

 partitions, much blocked up by shell-growth. The solid portion 

 at the apex of the test, through which runs the pseudopodial 

 passage, is characteristic of the species. Rare. Locality : Nos. 28,. 

 30, 32. Solitary specimens at a few other stations. 



Lagena sp. incert. (PL 17, figs. 4, 5). 



There are nine specimens on the slide, one or two of which are 

 in a very poor condition, and only three belong to these Water- 

 witch gatherings. I have figured the one that is in the best 

 state. One or two of the set are a little compressed. The orifice 

 is stellate, and the entosolenian tube is bent to one side. The 

 body of the test is striate, except the upper part ; a decorated 

 collar runs round the base, and from this springs downwards 

 what may have been the decorated wall of another chamber, but 

 this is only surmise. The edge of this wall shows signs of fracture 

 in all these specimens. There appears to have been an inner 

 chamber, when the specimen was in perfect condition, but as this- 



