185 
the factory expressly to see it, and it was one of the “lions” of Ga- 
boon; so little was known, even on the coast, of this animal by the 
natives. 
Dr. Crisp exhibited some specimens and drawings of the Cenurus 
cerebralis from the brains of the Common Sheep. One cyst mea- 
sured 4 inches in length, and 23 inches in its short diameter. It 
contained about three ounces of fluid. The Hehinococct were all of 
an oblong form; they varied in size in different cysts, some being 
about -};th of an inch in length, others from #;th to 25th of an inch. 
In some instances the parent-cyst was quite covered with them; in 
other examples they were arranged in groups of two or three hun- 
dred in each, and five or six of these masses were present in the 
same cyst. For the most part, their size was tolerably uniform, but 
a few were one-third or a half less than the others ; this diminution 
of bulk appearing to depend upon an arrest of growth from the pres- 
sure of the contiguous entozoa. The rostrum and hooks were seen 
only in a few, and occasionally two heads existed. The body in many 
was faintly marked with transverse lines, but no trace of generative 
organs or of an alimentary canal was visible. On exposure to gentle 
heat, they becameshard and granular. Dr. Crisp said he thought it 
somewhat doubtful whether these Echinococci, as supposed by many, 
were the young of a tape-worm ; the matter, he believed, yet required 
much patient investigation. 
The following extracts from the ‘ Bermuda Royal Gazette’ of 
Jan. 31st, 1860, relating to the recent capture of a large species of 
Gymnetrus in the Bermudas, were read to the Society :— 
“To the Editor of the ‘ Royal Gazette.’ 
«My pear Srr,—As the Ichthyological specimen captured by 
Mr. George Trimingham, at Hungary Bay, has attracted some public 
attention, perhaps a short description of the creature in question 
may prove interesting to your readers. I have therefore much plea- 
sure in forwarding the following particulars. 
“ Believe me, very truly yours, 
“J, Marruew Jones, F.L.S. 
“ The Hermitage, January 26th, 1860.” 
“Order ACANTHOPTERYGII. Family CeroLapa. 
“Genus Gymnetrus. 
2? . 
ce 
«“ Body attenuate, compressed, naked, tuberculate ; ‘cuticle a silvery 
covering of metallic lustre; length from facial to caudal extremities 
16 feet 7 inches ; depth, at 14 inches from facial extremity, 9 inches, 
increasing gradually to near the ventral extremity of the stomach, 
where it attained its greatest depth of 11 inches, and then decreased 
by degrees to the caudal termination ; width, at the same distance 
