part 3] FROM THE WEALD CLAY OF BEEWICK ( SUSSEX). 295 



The Wealden species that forms the subject of this paper, while 

 possessing a shoulder-girdle of similar type, has single costal facets 

 and a deep central depression in the cervical centra; this mav 



A =• Clavicular arcli of Eurycleidus megacephalus (Stutchbury) from below, 



about a sixth of the natural size. (B.M. E.. 1322.) 

 B = Shoulder-girdle of Eur^jcleidus avcuatus (Owen) frora above, about a sixth 



of the natural size. (B.M. 2028*-29*, E. 1317-18.) 



cL = clavicle ; cor. = coracoid ; /or.=foramen or notch in the 

 interclavicle ; i. cL = interclavicle ; sc. = scapula. 



