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ANNALS NEW YORK ACADEMY OF SCIENCES 



permitted to examine the specimens of Megalichthys hibbertii and other 

 Khipidistia in that Museum, while in the American Museum I have had 

 excellent specimens of Osteolepis, Megalichthys nitidus, Sauripteriis and 

 much other recent and fossil material. 



In view of the importance of the types specimen of Sauripterus taylori 

 Hall and of the fact that it has never before been adequately figured, I 

 have carefully studied this specimen, with the collaboration of my friend 

 Professor L. A. Adams, whose drawing is here reproduced (Plate I). In 

 this drawing we have endeavored to show only the structural details that 



Pig. 9. — liUjJit pectoral lirnh of Sauriptems tuylori — liestoration, lueilial aspect 



An Upper Devonian rhizodont rhipidistian. The known parts are shown in Plate I ; 

 the remaining parts are restored from the allied genera Tristichopterus and Eusthenop- 

 teron, except the coracoscapula, which is known only from the articular portion and is 

 conjecturally restored from analogy with Ceratodus. 



The mesopterygial series, homologous with the central axis of the "archipterygium" 

 of dipnoans, Holoptychiidae, etc., is represented by the humerus, ulna and distally suc- 

 ceeding elements ; the preaxial radials are barely represented ; the postaxial elements 

 form the major part of the fin skeleton and converge toward the mesopterygial axis. 



we have actually seen, without attempting to restore any missing parts. 

 Areas where the bone has been flaked off, leaving a clear impression in 

 the matrix, are stippled; cracks and other adventitious features are 

 omitted. Unfortunately most of the scapulocoracoid, the clavicle ("in- 

 fraclavicle") and the greater part of the fin-rays are missing, and hence 

 we do not know their precise shape, but have nevertheless attempted a 

 provisional restoration (Fig. 9) restoring the missing parts chiefly from 

 the allied genera Tristichop'erus and Megalichthys. The fleshy, scaly 

 lobe of the fin is indicated by the heavy, curved line. It is not known 

 whether the ascending bar of the clavicle was present as in Rhizodus or 

 absent as in Strepsodus (A. S. Woodward, 1891). We also give for com- 



