194 
THE FISHES OF LEICESTERSHIRE AND RUTLAND. 
which was found some years ago at Barrow-on-Soar, and is now in the possession 
of the Messrs. Ellis, who, however, kindly allowed me to take a cast from it for our 
INluseum. Since then, however, they have kindly presented us with the counterpart 
(No. beautiful specimen, and so rare that, as Mr. Kaven informs me, no 
others have occurred since this was found, some ten years ago. 
It is most deplorable that a local F.Gl.S. should have named this fine example 
— 18 inches in length— as ‘‘Probably Leptolepis sprattiformis” \ yet this is the 
designation it bears upon the new office-chart issued by the Messrs. Ellis. 
Ptycholepis minor (Egerton). 
This rare fish was figured and described in ‘ Memoirs of the Greological Survey 
of the United Kingdom ’ (Fishes, 1852), decade vi., plate vii., from a specimen 
from the Lower Lias (planorbis zone), Barrow-on-Soar, the two halves of which 
were in the possession of Sir Philip de Grrey Egerton and the Earl of Enniskillen. 
The species is also recorded from the same place by Morris.* 
Family LEPIDOTID^E. 
Sargodon {? tomicus), Plieninger. 
To Mr. H. E. Quilter is due the credit of having first discovered teeth of 
this genus (new to the Leicestershire list), in the Ehaetic bone-beds. Spinney 
Hills. They were submitted to Mr. A. S. Woodward, who, having examined a 
number of specimens collected by Mr. Quilter and now acquired by the Museum, 
writes f : — “ A few minute hemispherical dental crowns are of the form described 
as Sphcerodus by Agassiz. This name, however, has been given to the rounded 
crushing teeth of very distinct genera, and has thus only a provisional significance. 
In the present case, it is not unlikely that the fossils pertain to the Lepidotoid 
Ganoid of which the front teeth are known as Sargodon. The largest example 
is not more than three millims. in diameter; and all the specimens are distin- 
guished from the rounded teeth of the Triassic genus Golobodus by the absence 
of an apical tubercle. The cutting teeth of Sargodon do not occur in Mr. Quitter’s 
collection.” 
Family SEMIONOTID^. 
Dapjedius dorsalis (Agassiz). 
The British Museum possesses specimens from the Lower Lias (^planorbis 
zone), Barrow-on-Soar. 
* ‘ Catal. Brit. Foss.,’ p. 342. 
t ‘ Trans. Leicester Lit. and Phil. Soc.,’ April, 1889, p. 20. 
