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carpal, and into a posterior, vertically elongated, larger surface applied to the 

 tibial anterior facet of the os cuboides. A very slightly concave semi-elliptical 

 articular surface extends obliquely upwards upon the outer side of the proximal 

 end of the bone, and is adapted to a corresponding convex surface on the adjoin- 

 ing side of the fifth metatarsal. A shallow canal with many vascular perfora- 

 tions surrounds the margin of this surface, both above and below which there 

 is a rough tuberosity. The outer or fibular side of the body of the present 

 metatarsal is rugged, and rather flattened : the other surfaces are smooth and 

 convex. The distal end of the bone expands in the vertical direction, and sup- 

 ports a narrow, vertically elliptic, convex articular surface, surmounted by a large 

 and rough tuberosity, and terminating below in slight concavities, placed some- 

 what obliquely, for two large sesamoid bones, separated by a short convex ridge. 

 A narrow ridge traverses vertically the inner side of the distal end of the fourth 

 metatarsal ; and a smooth tuberosity rises from the middle of the outer side of 

 the same extremity. 



The proximal phalanx of the fourth toe (m 4, 1) is an elliptical subcompressed 

 piece, the antero-posterior diameter of which is equal to two-thirds of the vertical 

 diameter : its proximal surface is excavated by a simple articular cavity, corre- 

 sponding with the convex portion of the preceding articulation ; and is bounded 

 below by a pair of surfaces for the sesamoid bones. The distal end bears a much 

 smaller and very slightly convex surface. The non-articular surface is concave 

 beneath, rough, and much perforated by the nutrient vessels. 



The second phalanx (??i4,2) is a small irregular hemisphere of bone, with a 

 rugged exterior surface, except at the proximal shallow articular surface. There 

 is no trace of a joint for a third or ungual phalanx, which was wanting, together 

 with the claw. 



The metatarsal bone of the outer or fifth toe (»i 5} is of extraordinary size 

 and strength ; its length equals that of the adjoining toe ; in the circumference 

 of its base it surpasses the same bone by more than one-half It presents the 

 form of a rugged and irregular three-sided cone,with an oblique base and an obtuse 

 apex. The distal articular surface is of small extent, of a triangular form, with the 

 angles rounded off, and is divided into two parts ; the larger portion is placed on 

 the tibial half of the base of the bone, and is applied to the outer facet of the 

 anterior cuboidal articulation ; the remaining portion encroaches upon the tibial 

 side of the bone, and abuts upon the outer articular surface of the adjoining 



