252 



PROCEEDTNGS OF THE NATIONAL MUSEUM 



TELEOSTOML 



Family RHIZODONTIDAE Traquair. 

 Genus SAURIPTERUS Hall. 



SAURIPTERUS TAYLORI Hall. 



Plate 2, fig. 2; plate 7, fig. 5. 



Sauripteris taylori Hall, Nat. Hist. N. Y., pt. 4, Geology, 1843, p. 282, text-fig. 

 130.— Newberry, Monogr. U. S. Geol. Surv., vol. 16, 1889, p. 112.— Broom, 

 Bull. Amer. Mus. Nat. Hist., vol. 32, 1913, pp. 459-463; Anat. Anz., vol. 45, 

 1913, pp. 73-78.— Gregory, Ann. N.Y.Acad. Sci.,vol. 26, 1915, pp. 358-362. 



The extent of our information in regard to this genus has recently 

 been summed up by Dr. Robert Broom, as follows:* 



Sauripterus ia known only by fragments of the head, a series of crushed vertebra^, 

 a large number of scales and the beautifully preserved right pectoral fin with most of 



Fig. 6.— SAxnoPTERUs taylori Hall. C.atskill, Tennsylvania. Right pectoral umb of type-speci- 

 men WITH PARTS IN THEIR NATURALLY ASSOCIATED POSITION. (AFTER W. K. GREGORY). 



the cleithrimi and part of the supraclavicle (text fig. 6). The large comparatively 

 thin scales resemble those of Rhizodopsis and the cleithrum closely resembles that of 

 Rhizodus. The vertebral centra are formed by rings of bone. Owing to the crushed 

 condition of the vertebrae it is impossible to be quite sure whether the ring is entire or 



' Bull. Amer. Mus. Nat. Hist., vol. 32, 1913, p. 461. See, also, on the Rhipidistia, the important article 

 by D. M. S. Watson and Henry Day in Mem. and Proc. Manchester Lit. and Philos. Soc, vol. 60, 1916, 

 pt. 1, pp. 1-52. 



