Miscellaneous. 71 



complete examination has been made, we will lay the results before 

 the readers of the Journal. — SillimarCs American Journal, November 

 1866. 



On the Discovery of the Remains of a gigantic Dinosaur in the Cre- 

 taceous Beds of New Jersey. By E. D. Cope. 



Prof. Cope exhibited the remains of a gigantic extinct Dinosaur, 

 from the Cretaceous Greensand of New Jersey. The bones were 

 portions of the under jaw with teeth, portions of the scapular arch, 

 including supposed clavicles, two humeri, left femur, and right tibia 

 and fibula, with numerous phalanges, lumbar, sacral, and caudal ver- 

 tebrae, and numerous other elements in a fragmentary condition. 



The animal was found by the workmen under the direction of J. 

 C. Vorhees, Superintendent of the West Jersey Marl Company's pits, 

 about two miles south of Barnesboro, Gloucester county, N. J. 



The bones were taken from about twenty feet below the surface, 

 in the top of the " chocolate" bed, which immediately underlies the 

 green stratum which is of such value as a manure. 



The discovery of this animal fills an hiatus in the Cretaceous fauna, 

 revealing the carnivorous enemy of the great herbivorous Hadro- 

 saurus, as the Dinodon was related to the Trachodon of the Nebraska 

 beds, and the Megalosaurus to the Iguanodon of the European 

 Wealden and Oolite. 



In size this creature equalled the Megalosaurus Bucklandiiy and 

 with it and Dinodon, constituted the most formidable type of ra- 

 pacious terrestrial vertebrates of which we have any knowledge. In 

 its dentition and huge prehensile claws it resembled closely Megalo- 

 saurus ; but the femur, resembling in its proximal regions more nearly 

 that of the Iguanodon, indicated the probable existence of other 

 equally important differences, and its pertaining to another genus. 

 For this and the species the name of Lcelaps aquilunguis was pro- 

 posed. 



The paper continues with descriptions of the mandible, femur, 

 tibia, fibula, humerus, phalanges, vertebrae, &c. — Ibid. 



On the Development of small Acari in Potatoes. 

 By M. Guerin-Meneville. 



The two months of rain which have done so much mischief to 

 agriculture appear to have had considerable influence upon potatoes, 

 which have become diseased in various localities. This diseased 

 condition has made its appearance among the Australian and other 

 potatoes experimented upon by me at the laboratory of sericiculture 

 of the imperial farm of Vincennes, by the development of myriads 

 of Acari belonging to the species described by authors under the 

 name of Tyroglyphus feculce, which I investigated and figured, four- 

 and-twenty years ago, in a paper on the potato-disease, published in 

 the ' M^moires de la Societe Imperiale et Centrale d' Agriculture de 

 la France ' (1842, pi. 5. fig. 9). 



What has appeared to me worthy of remark in this circumstance 

 is the immense quantity of these animals developed in less than a 



