34 Rev. P. B. Brodie on the Lower Lias at Barrow-on-Soar. 



Dapedius seems to be the most abundant ; and among several 

 fine fish in Mr. Lee's collection^ since sold, I noticed one nearly 

 2 feet long, belonging to a different genus, and in a remarkably 

 fine state of preservation. The following species of fish have 

 been recorded from Barrow and elsewhere : — 



* , Pholidophorus Stricklandi. Tetragonolepis monilifer. 



Hastingsse. striolatus. 



sp. ? Lepidotus serrulatus. 



Dapedius orbis. 



Pholidophorus Stricklandi occurs also in Warwickshire, and 

 Dapedius orbis and Tetragonolepis monilifer in Warwickshire, 

 Worcestershire, and Gloucestershire. The Plesiosaurus, as 

 usual, is much less frequent than the Ichthyosaurus ; but fine 

 and entire specimens of both have been obtained. Among the 

 Crustacea, Eryon Barrovensis and Glyphcea liassica are common 

 to all these districts ; but the former is much larger at Bidford 

 and Wilmcote, in Warwickshire. This Crustacean has a wide 

 horizontal range ; for I have noticed it in this lower division of 

 the Lias, associated with insects, in Leicestershire, Warwick- 

 shire, Worcestershire, and Somersetshire ; and it has also been 

 found in Dorsetshire. My friend Mrs. Hutton (late Miss Hol- 

 land) has a fine specimen from the Upper Lias of Dumbleton ; 

 but I have not observed it in the intervening beds. 



At the time of my visit to Barrow, I could not find or hear 

 of any remains of insects, although T suspected that a careful 

 search would detect them ; and not long since, my lamented 

 friend Mr. Wyatt Edgell obtained a portion of a gigantic wing 

 of one of the Libellulidse (now in my collection) and a large 

 elytron of Buprestis (?). No doubt other genera will be dis- 

 covered there and in Nottinghamshire, as they have already been 

 by my friend the Rev. W. Norwood in the " Insect-limestones " 

 in Yorkshire, which therefore have a very extensive horizontal 

 range and are characterized by the same remains of insects 

 throughout; indeed theseremains really distinguish them far better 

 than the Saurian s, which, as stated, have a much wider vertical range. 

 I suspect, too, that the Ammonite-zones of some geologists will 

 ultimately have to be either modified or abandoned ; for some of 

 the species have a much less limited area of existence than has 

 been hitherto supposed. 



Note. — Mr. Burton informs me that he has not yet observed 

 any trace of the Insect-beds above the Rhsetics near Gains- 

 borough. 



