520 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 2 



PLATE 52 



Gorgorhynchus clavatus, new species, and Tegorhynchus pectinarius, new species 



Fig. 6. G. clavatus, proboscis of mature female showing arrange- 

 ment of hooks and attachment to body. 



Fig. 7. G. clavatus, detail of anterior dorsal surface of body showing 

 shape and arrangement of cuticular spines. 



Fig. 8. T. pectinarius, anterior region of body and proboscis showing 

 particularly the high degree of regional differentiation of 

 proboscis hooks and cuticular sheaths around hooks. 



Fig. 9. T. pectinarius, detail of basal region of proboscis, dorsal sur- 

 face showing modifications of hooks. 



I 



