178 THREE CRUISES OF THE " BLAKE." 



(Fig. 542.) Nearly all the specimens of Cribrella hospitdlis 



Fig. 543. Blind Isopod 

 parasitic of Cribrella 

 hospitalis, magnified. 

 (Schmidt.) 



Fig. 542. Phakellia tenax. f . 



are occupied by a parasitic blind isopod. (Fig. 543.) Schmidtia 

 aulopora(Fig. 544) represents a widely distributed West Indian 



Fig. 544. Schmidtia aulopora. 



