396 Mr. R. Lydekker on 



Herodiones. — In this group the family Plataleidce appears 

 to be represented in the Hordwell beds by a bird allied to the 

 Ibises, and of the approximate dimensions of the existing Ibis 

 rubra, which the writer has proposed to designate Ibidopsis 

 hordivelliensis. It is typified by the lower part of a tibia, 

 which agrees in all essential characters with the correspond- 

 ing bone of Tbis — especially in the absence of a tubercle 

 near the bridge over the extensor groove, — but differs in the 

 relative width of the anterior gorge between the two condyles. 

 The rostrum of a long-billed bird from the same deposits, 

 agreeing with that of Ibis in having a lateral groove, but 

 deflected only at the tip, probably belongs to this extinct 

 genus, and if so well distinguishes it from living Ibises. 



OduntoglossfB. — The English Upper Eocene deposits have 

 hitherto yielded no remains of true Flamingoes, or of the 

 allied but more generalized Palcelodus, which are so common 

 in the Lower Miocene of the Continent. There is, however, 

 undoubted evidence of the occurrence of British Flamingo- 

 like birds at the epoch of the Hordwell beds. Thus a humerus 

 in the British Museum, measuring somewhat less than five 

 inches in length, agrees so closely with the much larger 

 humerus of a Flamingo that it scarcely presents characters 

 of generic distinction. It is highly probable that this 

 specimen should be referred to that imperfectly known genus 

 of Flamingo-like birds from the lowest Miocene of France 

 described as Heloj'tiis*, in which the general characters are 

 those of Phoenicojjterus, but the legs were proportionately 

 shorter. The writer has therefore proposed to designate the 

 English bird as Helornis (?) anglicus. Two imperfect speci- 

 mens of the tibia of a Flamingo-like bird from Hordwell 

 indicate a considerably larger species, which should, pei'haps, 

 be likewise referred to HeIor7iis. There is some doubt as to 

 the serial position of a still larger Hordwell bird indicated 

 by a nearly entire coracoid in the British Museum measuring 

 somewhat more than 2^ inches in length. On the whole, 

 however, this specimen seems to come nearer to the corre- 

 sponding bone of the Flamingoes than to that of any other 

 * Oi'iffinallv incorrectlv ffiven as Elornis. 



