THE EVIDENCE OF THE AUDITORY APPARATUS 381 
when we see (as Patten and Redenbaugh have pointed out) to what 
part of the appendage the flabellum in reality belongs. 
Patten and Redenbaugh, in their description of the prosomatic 
appendages of Limulus, describe the segments of the limbs as (1) the 
n 
pili SS 
Me 
4 
Fic. 155.—A, Toe Diaaina APPENDAGE OR EcroanatH or Limutus; B, Tun 
MippLeE PROTUBERANCE (2) OF THE ENTOCOXITE OPENED, TO SHOW THE 
GENERATIVE AND Hepatic TISsvE (gen.) WITHIN It; C, ONE oF THE PRoso- 
MATIC LocomoToR APPENDAGES OR ENNDOGNATHS OF LIMULUS, FOR COMPARISON 
WITH A. 
fi, flabellum ; coz.,coxopodite ; ent., entocoxite; m., mandible; i.m., inner mandible 
or epicoxite. 
dactylopodite, (2) the propodite, (3) the mero- and carpo-podites, 
(4) the ischiopodite, (5) the basipodite, and (6) the coxopodite (cox. 
in Fig. 155). Still more basal than the coxopodite is situated the 
entocoxite (ent..in Fig. 155), which is composed of three sclerites 
