6G0 



DIt. C. W. ANDREWS ON AN ICHTHYOSAURUS JAW. [June 19, 



5° West longitude, a bird flew on board, and being absolutely 

 exhausted was unresistingly picked up, and is alive and well up 

 to date. 



" The strange thing about it is, that the point in question is about 

 400 miles from Ascension, 500 from St. Helena, 700 from the Gold 

 Coast." 



The Secretary exhibited a cast of a portion of the jaw of an 

 Ichthyosaurus (taken from a specimen obtained at Flinders River 

 in Queensland) transmitted to the Society by Mr. J. Lane Huxley, 

 of the Land's Department, Brisbane, Queensland, and read the 

 following note upon it prepared by Dr. C. W. Andrews, F.Z.S. : — 



'• The specimen sent is a cast of a fragment of the snout of au 

 Ichthyosaur related to Ichthyosaurus campylodon. 



Fragment of Jaw of Ichthyosaurus. 

 Lower Cretaceous, Flinders River, Queensland. 



" It is probably referable to the species Ichthyosaurus australis, 

 described by McCoy in ' Annals and Magazine of Natural History,' 

 1876, vols. xix. & xx., and the specimens noticed by him are from 

 the same locality, viz. Flinders lliver, Queensland. The horizon 

 from which they came is, as stated by McCoy, the Lower Creta- 

 ceous, although, for some reason or other, Moore states (see Quart. 

 Journ. Geol. Soc. 1870) that McCoy regards it as Liassic. 



" Another species, Ichthyosaurus marathonensis, from the same 

 horizon and a neighbouring locality, has been described by R. Ethe- 

 ridge, Jun. (Proc. Linn. Soc. N". S. W. 1888, iii. [2]), but he admits 

 that it is not improbably identical with Ichthyosaurus australis. 

 PJesiosaurus is also recorded from the same horizon and locality. 



" In the present specimen the bases of about seven teeth in 

 the upper jaw, and the crowns of four or five in the lower, are 

 preserved on the right side ; while on the left only traces of teeth 

 are present. 



" The teeth appear to have the subquadrate base aud coarsely 

 ridged crown of the Campylodon group of Ichthyosaurus." 



