PLATE XLIII. 



PAGE 



Pheronema carpenteri, Wyville Thomson, . . . 241 



Fig. 1. A dried specimen ; x 0'5. 



Fig. 2. Vertical section of the marginal portion of a specimen, preserved in 

 alcohol (combination figure) ; x 50. 



Fig. 3. Uncinatum-like oxydiact with barbs ; x 300. 



Fig. 4. Autodermal pentact pinulus ; x 300. 



Fig. 5. Small uncinatum-like oxydiact with barbs ; x 300. 



Figs. 6, 8, and 10. Middle-sized and small amphidiscs ; x 300. 



Fig. 7. Autogastral pentact pinulus ; x 300. 



Fig. 9. Large amphidisc ; x 300. 



