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PLATE XLII. 



PAGE 



Pheronema annse, Leidy, .... 239 

 Fig. 1. Half of a dried specimen, divided longitudinally, inner view; natural size. 

 Fig. 2. Large amphidisc with knobbed axial beam ; x 300. 

 Figs. 3, 4. Middle-sized ampliidiscs ; x 300. 

 Fig. 5. Small amphidisc ; x 300. 

 Fig. 6. Uncinatum-like oxydiact ; x 300. 



Fig. 7. Inferior part of an anchor-like spicule of the basal tuft ; x 300. 

 Figs. 8, 9, 11, 13. Autocanalicular pentact pinuli ; x 300. . 

 Fig. 10. Autodermal pentact pinulus ; x 300. 

 Fig. 12. Oxyhexact with echinated straight rays ; x 300. 



