110 



CROCODILIA. 



The rostrum very long and narrow, the teeth slender, the orbits 

 small and placed somewhat laterally, the supratemporal fossae 

 small. The synonymy is given on the authority of Burmeister and 

 D'Alton \ who regard the type vertebrae as belonging to the same 

 form as the crania. 



Eab. Europe (Germany and England). 



21546. The nearly entire skeleton ; from the Upper Lias of Boll, 

 Wiirtemberg. The skull is perfectly preserved. 



Purchased, 1847. 



15295. Cast of the nearly entire skeleton. The original was 

 obtained from Boll, and is figured in Kaup and Bronn's 

 ' Gavialartigen Reptilien/ pis. ii. a, ii. b, ii. c, under the 

 name of Mystriosaurus teidemanni, of which it is the type. 



Purchased. About 1840. 



14436. The hinder part of the cranium and mandible ; from the 

 Upper Lias of Whitby, Yorkshire. The characteristic 

 form of the postorbital bar is well shown ; while the 

 small, ovate orbits, and minute preorbital vacuities are also 

 distinctive features of this species. No history. 



Steneosaurus chapmani (Buckland 2 \_ex Kdnig, MS.]). 



Syn. Teleosaurus chapmani, Buckland 3 {in parte). 

 Mystriosaurus laurillardi, Kaup 4 . 

 Mystriosaurus chapmani, Bronn 5 . 

 Mystriosaurus macrolepidotus, Wagner 6 . 

 ? Mystriosaurus speciosus, Miinster 7 . 

 Mystriosaurus stukelyi, Winckler 8 {in parte). 



The rostrum shorter and wider than in the last species, with the 

 orbits relatively larger. 



Winckler has proposed to regard this species merely as a variety 

 of S. bollensis. 



Hob. Europe (England and Germany). 



1 See Winckler, Arch. Mus. Teyler, vol. iv. art. 1, p. 132 (1876), 

 " 2 Geology and Mineralogy (Briclgewater Treatise), 1st ed. vol. ii. p. 35 

 (1837). — Teleosaurus (errorim, chapmanm). 



3 Loc. cit. 



4 Quoted in Neues Jahrb. 1835, p. 623. 



5 Gavialartigen Eeptilien, p. 27 (1854). 



y Abh. k.-bay. Ak. Wiss. vol. v. p. 555 (1850). 



7 Neues Jahrb. 1843, p. 129. 



8 Arch. Mus. Teyler, vol. iv. art. 1, p. 132 (1876). 



