. The anatomy of the frog. Frogs -- Anatomy; Amphibians -- Anatomy. THE HIND-LIMB. 51 Fîg. 47. surrounded and enclosed at their anterior and posterior extremities in a common epi- physis of calcified cartilage, which has the usual struc- ture found elsewhere. The VigameyiUim calcanei, which will be described below (see Muscles of Foot, Fig. 88 Ir), may be regarded as an un- attached process of the heel ^. /3. The distal row of the tarsals are all composed of calcified cartilage. They are :— I. Os cvhovlevm (Fig. 47 cU), a flat plate of cartilage, concave in front, convex behind, placed between
. The anatomy of the frog. Frogs -- Anatomy; Amphibians -- Anatomy. THE HIND-LIMB. 51 Fîg. 47. surrounded and enclosed at their anterior and posterior extremities in a common epi- physis of calcified cartilage, which has the usual struc- ture found elsewhere. The VigameyiUim calcanei, which will be described below (see Muscles of Foot, Fig. 88 Ir), may be regarded as an un- attached process of the heel ^. /3. The distal row of the tarsals are all composed of calcified cartilage. They are :— I. Os cvhovlevm (Fig. 47 cU), a flat plate of cartilage, concave in front, convex behind, placed between the // common epiphysis of the astragalus and calcaneum [ac) and the 08sa metatarsi II and ///. This corresponds, as Dugès suggests, with the separated os cutjoidevm and cmieifonne III of other ba- trachians, Bufo. 3. On the inner side of the above, between the as- tragalus and metatarsus I lies a small body, concave in front, convex behind, which we may regard, with Dugès, as the analogu^e of the os naviculare (Fig. 47 71). 3. This latter supports a cartilage which forms a pro- jection on the inner border, covered with skin. This consists of closely-united pieces, a small round, basal ^ Meckel, , II, p. 488, regardis the cartilage in the tendo AcMIlis as such E 3. Riglitfoot ofRatiaescidenta,\>a.] surface,twicenat. size. a Astragalus. h First, h' second cartilage ac Common epiphysis. of supplemental toe. c Calcaneum. m Ossa metacarpi. cb Os cuboideum. n Os naviculare. / to F First to fifth Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ecker, Alexander, 1816-1887; Haslam, George. Oxford, Clarendon Press
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