HENRY SIDEBOTTOM ON LAGENAE OF THE SOUTH-WEST PACIFIC. 387 



Lagena striata d'Orbigny var. nov. strlatotuhidata 



(PI. 15, tigs. 11, 12). 



Body of the test nearly globular, or ovate. Round in section. 

 Numerous fine costae run lengthwise of the test, some of which 

 do not reach as far as its base. Neck long, and provided with 

 from four to six Avings, starting part wa^y up the neck, and 

 reaching down to the middle of the test. In some cases they run 

 down along the sides to join the long, projecting tubular pro- 

 cesses at the base. The number of the tubular processes varies 

 from four to six. Sometimes these tubes are flattened. There 

 are a good number of this elaborate form ; some are in perfect 

 condition, but most of them are a good deal broken, and the 

 adherence of debris interferes with their elegance. Brady's 

 Challenger figure, pi. 57, fig. 29, appears to belong to this series, 

 although it is probably a broken and poor example. Locality : 

 Chiefly No. 32, and rarely at many other stations. 



Lagena distoma Parker and Jones. 



LoKjena laevis var. striata Parker and Jones, 1857, p. 278, pi. 11, 

 fig. 24. 



There are only ten or eleven examples on the slide, although 

 many more are indicated on the chart. Locality : Chiefly No. 21. 



Lagena variata Brady (PI. 15, fig. 13). 



Lagena vai-iata Brady, 1881, Qaart. Journ. Micr. Sci., N.S., 



vol. xxi., p. 61. 

 Lagena variata Brady, 1884, p. 461, pi. 61, fig. 1. 



There are only two typical examples. They are irregular in 

 shape. Locality : One, No. 3, the other uncertain. 



PI. 15, fig. 13. There are a fair number of small specimens in 

 which the striae or fine costae are generally much broken up. 

 Most of the tests have a short neck, only just showing ; in the 

 one figured it is more pronounced than is usually the case. The 

 tests are regular in shape. Locality : Chiefly No. 15. 



Lagena lineata Williamson sp. (PI. 15, figs. 14, 15). 

 Entosolenia lineata Williamson sp., 1848, p. 18, pi. 2, fig. 18. 



The typical form occurs rarely, but at a good many localities. 

 Odd specimens appear to be non-apiculate, like fig. 14. This 

 species seems to pass insensibly into L. costata. 



Journ. Q. M. C, Series II. No. 70. 26 



