HENRY SIDEBOTTOM ON LAGEXAE OF THE SOUTH-WEST PACIFIC. 167 



Lagena laevis Montagu sp. var. distoma Silvestri. 



Lagena laevis (Montagu) Silvestri, 1900, p. 244, pi. 6, figs. 74, 75. 



Examples are rare, but they occur at a fair number of stations.. 

 Locality : Chiefly at Nos. 1, 6, 11, 15, 17, 22, 42-44. . 



Lagena gracillima Seguenza sp. 



Amphorina gracilis Costa, 1856, p. 121, p. 11, fig. 11. 

 Am ph or ina gracillima Seguenza, 1862, p. 51, pi. 1, fig. 37. 



Eight specimens occur which are all curved. Locality : No. 44. 

 Besides these specimens, only two or three others were found. 

 Locality : Uncertain. 



Lagena elongata Ehrenberg sp. 

 Miliola elongata Ehrenberg, 1854, pi. 25, 1a, fig. 1. 



I do not think these can be separated from L. gracillima 

 Seguenza sp., as they appear to pass insensibly from one form to 

 the other. Seven specimens occur, also two or three doubtful 

 examples. Locality : Six at No. 43, and one at No. 2. 



Lagena aspera Keuss (PI. 15, figs. 11-13). 

 Lagena aspera Eeuss, 1861, p. 305, pi. 1, fig. 5. 



Pi. 15, fig. 11. This is in good condition, except that the neck 

 is broken. The protuberances, which are arranged in lines, are, 

 I think, tubular. Locality : No. 17. 



On another square are two smaller specimens, with very small 

 protuberances ; these also have the neck fractured. They appear 

 to be a weak form of the above. Locality : Uncertain. 



PI. 15, g. 12. Two specimens only occur ; the one figured is in 

 a very opaque condition, the other is clear but much smaller. 

 Locality : Nos. 1, 22. 



PI. 15, fig. 13. Three specimens found, the neck being bent to 

 one side in each case. It is not unlikely that future investigation 

 will reveal a connection between these forms and L. striatopunctata. 

 Locality : No. 43. 



There are also two oval tests, which have the protuberances, 

 and the lines in which they are arranged, farther apart. The 

 protuberances are very minute. Locality : No. 10. 



