NO. I 'iiiic UN I'o'i !<<»( uan'ii;uk: fossa — hrdmcka 17 



X.). of 



I liiman : Adult : femora 



U. S. Whites ( niiscc-llanc(nis) l,0O0 



U. S. Negroes (miscellaneous) 100 



Old l^gyjitians (XII Dynasty) 200 



Old Peruvians (Pachacaniac and Cliicania ) 868 



N. A. Indians (miscellaneous ) 3,890 



{•'.skinios (Alaskan) 718 



Aleuts 137 



Kodiak Islanders (pre-Aleut ) 154 



Cliinese (Canton) 152 



Till'". I'OSSA IN LEMURS 

 I fypDirorhaiilcric I'ossd in Lctiiiirs 



\'o. of 

 femora l'"ossa in 



I lai)alciiiuis, adult 4 



I,epidolcmurs, adult 6 



Lemurs ("various), adolescent 2 



adult 4 



Total 16 



All these specimens ])rc'sent a iiKjre or less marked marginal gluteal 

 ridge (forming a part of the lateral border), and rising from the 

 proximal part of this, a well-developed to pronounced process, the 

 " third trochanter " ; but there is not a trace in any of these specimens 

 of the hypotrochanteric fossa. 



THE FOSSA IN Nl'AV WORLD MONKEYS 

 Jfypotrochaiiteric fossa in Nczv World Monkeys 



No. of 

 femora l'"ossa in 



Alouattas (Howlers)," adult 34 



Atcles," adolescent 8 2 (a pair) 



adult 5 



Cebus, younj; 3 



adult 2 



Callicehus, adult i 



Total 53 2 



•■' Several varieties. 



In all these American monkeys the gluteal ridge, generally rather 

 distinct, is marginal or nearly so ; and in the Alouattas and the Ateles 

 there is frequently on the upper \rdrt of the ridge a trace to fair 

 development of a third trochanter, but not of the lemuroid form — 



