HENRY SIDEBOTTOM ON LAGENAE OF THE SOUTH-WEST PACIFIC. 389 



PI. 15, fig. 23. This appears to be a weak and rotund form of 



the type, having only three eostae. Loccdity : No. 3. Only one 



occurs. 



Lagena melo d'Orbigny sp. 



Oolina melo d'Orbigny, 1839, p. 20, pi. 5, fig. 9. 



Only a few occur. Locality : Exact locality uncertain. 



Lagena hexagona Williamson. 



Entosolenia squamosa var. hexagona Williamson, 1848, p. 20, 

 pi. 2, fig. 23. 



The examples are small. Some are globular, and a few take 

 the form of L. laevis, having a well-produced and transparent 

 neck. Locality : Uncertain. 



A compressed form is present. The specimens are very small, 

 almost circular in outline and compressed. Orifice fissurine. 

 Locality : Uncertain. 



Lagena seminuda Brady. 



Lagena seminuda Brady, 1884, p. 472, pi. 58, fig. 34. 



There is only a solitary specimen of this beautiful form. The 

 test is fractured, showing the w^all to be very thick. Locality : 

 No. 28. 



Lagena sulcata Walker and Jacob sp. (PI. 15, 



figs. 24, 25). 



Serpula [Lagena) striata sulcata rotunda Walker and Boys, 1784, 



p. 2, pi. 1, fig. 6. 

 Serpida {Lagena) sulcata Walker and Jacob, 1798, p. 634, pi. 14, 



fig. 5. 



Fine specimens occur, but somewhat rarely. The tests vary 

 greatly in their shape and size, likewise in the number of eostae. 

 They are mostly in the apiculate condition. 



PI. 15, fig. 24. This is a stout form, with a few of the eostae 

 produced at the base. The short neck is heavily rimmed. Locality : 

 Two at No. 3 and one at No. 8. 



PI. 15, fig. 25 has tubular spines encircling the base. The 

 test is apiculate. Two occur ; one is much damaged, but has the 

 neck straight, and probably had more spines than the one figured. 

 Locality : Nos. 30, 32. 



