VOL. LXI.] PHILOSOPHICAL TRANSACTIONS. 13/ 



A Thoracic Fix ft. 



Perca 



Chaetodon 



Head obtuse, naked in front. Mouth ascending, edged by flesliy lips, tlie 

 lower jaw longer than the upper. Teeth in both jaws equal, chafFy, ap- 

 proximated. Suture of the jaws on each side oblique, and dentated. Gill- 

 covers edged with serratc-ciliate spines. Nostrils single, round, margined. 

 Body ovate, compressed, scaly. Fins scaly on the back, black on the margin, with 

 fibres projecting beyond the rays. Dorsal fins 2, subunited: the first rounded, 

 with 10 spiny rays, the second angulated, with l6 soft rays, the pectoral fins 

 rounded, with 14 rays, the ventral with 6 rays, the anal angulated, with 14 rays, 

 of which the first two are spiny, the candal rounded, with 18 rays. Colour 

 grey, with 6 transverse black bands surrounding the whole fish: the first runs over 

 the head beyond the eyes; the second over the margin of the gill-covers ; the 

 third, angular and oblique, goes between the first dorsal fin and the anus; the 

 fourth goes straight from the union of the dorsal fins to the space behind the 

 anus; the fifth is bowed between the second dorsal fin and the anal fin; and the 

 sixth is nearly straight, at the base of the candal fin. 



Perch (Chaetodon) with subunited dorsal fins, rounded tail, and 



ovate body, with 6 transverse black bands. 



Notwithstanding Mr. Tyson's observation relative to the genus of this fish, it 

 should, no doubt, be considered as a species, not of perch, but of chaetodon. 



XXXI. An Account of Elden Hole, in Derbyshire. By J. Lloyd, Esq., With 

 some Observations upon it, by Edward King,* Esq., F. R. S., p. 250. 

 Mr. L. having seen several accounts of the unfathomable depth of Elden-hole, 



• Edward King, Esq., f. R. andA.s.s., died April 1 6, 1807, at 72 years of age. He was a 

 native of Norfolk, of a good family, and in 1748 entered a fellow commoner in Clare-Hall, 

 Cambridge, where for several years he most assiduously pursued his literary course. After leaving 

 the university, being intended for the law, he entered of Lincoln's Inn, by which society he was 

 called to the bar, and for some time he followed the profession with considerable success ; till the 

 decease of his father, when coming to the possession of an ample fortune, he quitted Westminster- 

 Hall, and devoted himself to the quiet pursuits of learning, which he cultivated with great assiduity 

 during the rest of his life. In his attendance on the circuit, he defended a lady against a faithless 

 lover, and successfully offered ber his hand. He was also for some time recorder of Lynn. 

 Though Mr. K. was a writer of considerable eccentricity, he appears to have been a very pious and 

 well-meaning character: writing on many subjects, without the appearance of seeing deeply or 

 clearly into any one. His various lucubrations were the effect of assiduous reading; and, as he 

 expressed it, intense thinking. Whatever opinions be imbibed, they were mainiained with 

 pertinacity : and he would contend with equal zeal for the genuineness of the correspondence 

 between St. Paul and Seneca, and of the apocryphal books, as for the holy scriptures. 



VOL. XIII. T 



