Page:Synopsis of the Exinct Batrachia and Reptilia of North America. Part 1..pdf/85

 AND AYES OF NORTH AMERICA. 79 round cup with thick edges. In the cervicals the hypapophyses are represented by rudimental elevations separated by a space, except on the third, where there is the usual anterior cross ridge, followed by a concavity. I refer here a dorsal, kindly lent me by Prof. Marsh, where the cup is more transverse oval than in 'I'. obscurus. The lumbars from Barnesboro are characterized by a form more slender than those of the T. tenebrosus, more nearly resembling some from the series of T. obscurus. Measurements of : In. Fifth cervical : length to shoulder, 21. posterior angle parapophysis, 15. anterior " ti width to posterior angle parapophyses, it behind the parapophyses, " of cup above, " vertical diameter cup, neural canal, Lumbar : length to shoulder, vertical diameter cup, width of it tt CI neural canal, 6. 19.25 13.25 15.25 8. 24. 18. 17. 5. " basis of neural arch in front, 15. Specimens of an adult from the pits of the West Jersey Mar] Co., near Barnesboro, Gloucester County. THORACOSAURITS, Leidy. Cretaceous Reptiles, Smithson. Contrib., XIV., 5. Pr. Ac. N. Sci., Phila.,1852, 35. This genus adds to the characters of Holops, a pair of large prefrontal foramina similar to those characteristic of Teleosaurus, and Plesiosaurus. The other cranial char-acters, as NI ell as the vertebral, are very different from those of Teleosaurus, which is amphicoelian, and are rather those of the existing Gavialis. The teeth and cervical vertebrae, however, differ fiorn those of the latter genus. What is not seen in Gavialis or Holops is the character here presented, of a strong septum dividing the posterior nares most completely, the latter open inferiorly and oppo-site the hinder part of the crotaphite foramina A species, the T. macrorhynchus, occurs in the cretaceous of France, as observed by Leidy. THORACOSAURUS NEOCAESARIENSISI Dekay. Leidy. Smithsonian Contributions, XIV., 1863, 5. Tab. I. Gavial Deka), Ann. Lye. N. York, 1883, 156. Tab. III., fig. 7-10. Gavialis neocaesariensis Dekay. Zool. New York, 1842, pt. III., 1844, 82. Crocodilus s. Gavialis clavirostis Morton. Proceed. Acad. Nat. Sci., Phila., 1c4-1, S. Giebel Fauna v. Vorvelt, 1847, 122. Crocotiams basifissits Owen. Journ. Geol. Soc., London, 1849, 381, Tab. X., f. 1, 2. Palaeontology, 1860, 277. Pictet Traite de Palaeoutolgie I., 1853, 482. Crocodilus dekayi Leidy. Journ. Acad. Nat. Sci., II., 135. Sphenosaurus Agassiz. Proceed. Ac. N. Sci., Phila., 1849, 160. T lior«cosaztrus grandis Leidy. Proc. A. N. Bei., Phila., 1852, 33. Cretaceous limestone of Vincentowu, Blackwoodtown, and Big Timber Creek ; sandstone of Navesink ; green-sand of Blackwoodtown, Barnesboro, and Monmouth County, New Jersey.