of the Genus Stenomylus. 



317 



Fig. 24. 



able a-ntero- posterior diameter of its shaft, this depth being 

 especially great near the facet for articulation on the cuboid. 



The cuboid is compressed- trans- 

 versely, developed in the antero- 

 posterior diameter, and carries a 

 heavy plantar hook in the rear. The 

 navicular is moderately developed, 

 having a large concave face for the 

 astragalus, which facet is notched on 

 the inner margin. The lower side 



Fig. 24. Stenomylus hitch 

 cocki, tarsus, x 1/2. 



has a large facet for the ecto-meso- 



cuneiform and a smaller one for the ento-cuneiform, beside the 

 lateral articulations where it rubs against the cuboid. The 

 ecto-meso-cuneiform is free from the navicular, rectangular in 



Fig. 25. 





Fig. 26 



Fig. 25. Stenomylus hitchcocki, metatarsus from the anterior side, x 1/2. 



form, and carries a single facet above for the navicular, a 

 second below for the third metatarsal, and a third laterally for 

 the ento-cuneiform. This last bone is a small nodule, with 

 facets for the navicular, the ecto-meso- 

 cuneiform and for the plantar process 

 of the cuboid. 



The metacarpus consists of the func- 

 tional digits III and IV, fused for a 

 little more than the upper half of their 

 length, a tiny nodule representing mt. 

 II, and a still smaller nodule represent- 

 ing mt. V. In length the metatarsus is 

 a trifle longer than the metacarpus. The 

 vestige of the second metatarsal is 8 mm 

 long by 6 mm wide and carries a tiny 

 facet for articulation on the ento-cunei- 

 Fig. 26. stenomylus form. The vestige of mt. V is but 3 nim 



hitchcocki, phalanges of the \ 0U q- an d 5mm ^{fa ail( j l iag no f ace t s . 



sidt i0 lY/2° m ^ UPPei * The ll PP er end of the third metatarsal 

 is occupied by the facet for the ecto- 

 meso-cuneiform, that of mt. IV by the facet for the cuboid ; 

 then each contributes a strong process from the plantar side, on 

 the inner side of which is a facet for the ento-cuneiform. The 

 distal ends of the two metapodials spread in a characteristic 



