T 2. mm 



^O 



TTlTn 



o^ 



a 



5 mm. 



0-L 



ram 



O^ 



•7mm 



T Imm. 



Tlmm 



^O 



O 



e 

 Zmm 



-^O 



g 



h 



f 



Fig. 51. Lumbrinereis antarctica. 



a. Head from above, b. Tenth foot. c. Twenty-fifth foot. d. Sixtieth foot. e. Bordered capillary 

 bristle. /. Crochet, g. Lower jaw plates, h. Upper jaws. 



18-2 



