196 HENRY SIDEBOTTOM ON LAGENAE OF THE SOUTH-WEST PACIFIC* 



A few very small examples are also present. 



PI. 17, fig. 13. This solitary example has the eostae well raised, 

 and as they are irregular I have placed it under the above head- 

 ing. The side keels are only just apparent. Locality : No. 44. 



+ P1. 19, fig. 24. Very rare. See remarks + p. 418. Locality .- 

 Nos. 1, 38. 



Lagena Orbignyana Seguenza sp. var. clathrata Brady 



(PI. 17, fig. 14). 



Lagena clathrata Brady, 1884, p. 485, pi. 60, fig. 4. 



The type-form occurs, but is always rare, except at No. 43, 

 where eleven were found. Locality: Nos. 17, 18, 24, 29, 35, 37, 

 38, 43, 44. 



A few very small specimens are present, but they are not 

 typical. Others are minute, with numerous fine eostae either 

 straight or curved, these latter resembling L. variabilis, as Mr. 

 Millett remarks in his Malay Report, 1901, p. 628. 



PL 17, fig. 14. I think this may be brought under the above 

 heading. The test is compressed and has three keels ; these 

 stand out more than the three eostae which run down each face 

 of the test. Locality : Nos. 8, 10-14 ; frequent at No. 8. 



Lagena Orbignyana Seguenza sp. var. variabilis Wright. 



Lagena Orbignyana sp. var. variabilis Wright, 1890, p. 482, pi. 

 20, fig. 9. 



Except that the side keels are not so well developed, and the 

 striae are very numerous, the specimens are fairly typical. In 

 several instances the striae are inclined to cover the body of 

 the test, and in others they are either absent or scarcely per- 

 ceptible. Locality .- 2, 5-7, 10-14, 16-18, 24, 29, 34, 35. 



Lagena Orbignyana Seguenza sp. var. (PI. 17, fig. 15). 



The test is only slightly compressed ; the main keel, which 

 starts at the orifice, splits as it approaches the body of the test. 

 Very fine bars cross the space thus formed. Between the cross- 

 bars is a well-marked circular depression. Besides the side keels 

 there are two semicircular eostae, one of these on each face of 

 the test. At the base is an irregular circular projection to which 

 the keels are attached. The wall of this projection is thin. 



