50G 



PROF. E. S. GOODRICH ON A' NEW TYPE OF 



cartilage extending ventrally from side to side below the pericardium 

 (figs. 1, 2, 3, & 5). At this stage the whole girdle consists of two slender 

 dermal cleithra passing dorso-ventrally (o meet below, and the cartilaginous 



Fig. 1. 



Clupea sprattus. 

 Cartilaginous skeleton of the pectoral fins and girdle. 



Fig. 2. 



C/ 



Fig. 3. 



Clupea sprattus, 28 mm. 



Fig. 2, transverse section showing the pectoral girdle below the pericardium. 

 Fig. 3, similar section further forward. 



