rOEEIGN INTELLIGENCE. 



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to our commonest plesiocetes ; but, in tlie conformation of the drum of the 

 ear, in characters of the fragments of the inferior maxilhuy which had not 

 been recognized, as also by the vertebrae from different regions of the 

 body, this cetacean differed notably from all that the Crag Sea contained. 

 We are able even to add, that it had nothing in common with the Ba- 

 lanodon of Owen.* 



" The Balrenodon of Lintz is rather a ziphioid, and we doubt much if 

 the tooth which has been assigned to it belongs really to that animal. 

 The tympanum of this pretended Balcenodon indicates the existence of 

 characters far removed from the whalebone-whales of the Crag, and 

 ally it to the Hyperodon or the ziphioids. For the rest, we believe 

 we have recognized, among the undetermined bones in the Museum of 

 Lintz, fragments of the inferior maxillary remarkable for their height and 

 their great flatness, and which leave hardly any doubt on the subject. 

 Since our journey, this Balcenodon has been designated in our manuscripts 

 under the name of AvJocete, on account of the cranial furrow. 



" In the same sea of Upper Austria is found also a delphinoid which is 

 unknown to science ; but unfortunately it is represented by a single tooth. 



" In the fine Museum of Stutgart we have found yet two other remark- 

 able cetaceans of the same sea, tlie Arionius servatus of H. von Meyer.t 

 . . . and a new ziphioid that we hope soon to see described. The latter 

 has the seven cervical vertebrae isolated ; and the drums of the tympanum, 

 still in place, are remarkable for tlieir form, their large size, and, above all, 

 for the great thickness of their solid walls. . . But of all the inhabitants 

 of the seas of that age, undoubtedly the most interesting are the fossil 

 sirenians known under the name of Hdlitherium. They inhabited the 

 coasts, or rather the embouchures of rivers, which they could ascend son e 

 distance at need. To judge of them by the numerous relics found in dif- 

 ferent localities, at Darmstadt amongst others, these strange animals in- 

 habited in abundance the Sea of the Molasse, whilst the Crag Sea has 

 not harboured any of their remains. In the present creation we see 

 the sirenians chiefly in the tropical regions. The Senegal and the 

 Amazon foster them abundantly. The finest skeleton known of the Ila- 

 litherium is in the Museum of Darmstadt ; it shows the pelvis and a 

 femur, of which the extremity is lodged in a cotyloid cavity. We are 

 pleased to learn that Dr. Xaup, by whose pains so many paleontological 

 treasures have been connected together, proposes to model completely this 

 important relic of the ancient world. The Sirenians lived together with 

 the Squalodons in the Sea of Lintz ; but it is probable that these bones at 

 Darmstadt belong to individuals which had mounted high up the river, 

 and which thus are found far from the other marine animals. It is pos- 

 sible, also, that the waters below which these sands were deposited at Lintz 

 and Darmstadt were brought by two opposing streams, like the Ehiue 

 and the Danube of the present day. . . All the bones at Lintz have been 

 found in a thick bed of coarse sancl, situated immediately below the quater- 



* Hermann Ton Meyer has described this head at Lintz under the name of Balcetw- 

 dun Lintanns, believing these remains ought to be placed with those which Owen had 

 found in the Crag. But what we do not comprehend is that this learned paleonto- 

 logist has been able to tind more affinity between the Balcenodon and the Zeuglodon 

 than between it and the Squalodon. See also C. Ehrlich, ' Geognostische Wanderungen,' 

 Linz, 1850, p. 83, pt. ii.-iv. ; ' Beitriige zur Palaontologie,' Linz, 1855, p. 8. 



t H. von Meyer, Arionatus Servatus, ' Ein den Delphiuen verwandtes Meeres Sauge- 

 thier,' N. Jahrb. 1841, p. 315; ' Palseontolographica,' vol. vi., Cassel, 1856-58, p. 31, 

 pt. vi. 



