EXPLANATION OF PLATE 29 



Fig. 4. Lateral view of pectoral girdle (xl) and fin (% natural size), 

 a.pt, articular process for pectoral fin; co., coracoid; f.pt., foramen through the 

 pectoral girdle; ms.p., mesopterygium ; nit.p., metapterj-gium; po.r., postaxial 

 radials; pr.p., propterygium; ra., radial cartilage; sc, scapula. 



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