PHYLOGENT OF THE PAL.EOGNATH.^ AND NEOGXATHvE. 



24?. 



great size, in Strutkio and Casuarms being rightly described as enormous. The femoro- 

 caudal, on the other hand, is relatively but feebly developed or absent. 

 Bhea and Dromwus both agree in having lost the femoro-caudal. 



Fis. fi. 



^ 



cr 



/ TncMC a/7zi 



^/. max pes t. 



Left side view of a dissecfion of the thigh-muscles of Casuai-ius unajijiendkidatus, to show the accessoiy 

 Stnithious adductor, the femoro-caudal, and accessory semiteudinosus muscles. The accessory adductor, 

 femoro- and accessory femoro-caudal = the caud-ischio-ilio-femoralis of Gadow. 



Acc.ad. = accessory Struthious adductor. 

 h. = biceps. 

 f.e. = femoro-caudal. 

 acc.f.c. = accessory femoro-caudal. 



's.t. = semiteudinosus. 

 (tcc.st. = accessory semiteudinosus. 

 ad.l. = adductor longus. 

 cr. = crureus. 

 gl.med. = gluteus medius. 



ijljiiui. = gluteus minor. 

 'jl.mx.ant. = „ maximus anterior. 

 yj.mx.ijost. = ,, posterior. 

 (jl.aiU. = ,, anterior. 

 Sat: z= sartorius. 

 si/ih. = semimembranosus. 

 icl.c. = ectocnemial crest. 

 ad.l. = adductor longus. 

 p.b. = pubis. 



The femoro-caudal muscles of Apteryx are peculiar and are differently determined 

 by Garrod and Beddard. Garrod's view is adopted in the present contribution, after 

 independent dissections. Garrod [30] says : — " The accessory femoro-caudal is peculiar ; 



