139 



of scales of body of the fish ; Tail, bifurcated, unequal, very 

 long and tapering in upper division, which extends to a fine 

 point. The scales run down on upper division of tail, and become 

 gradually smaller to tip ; caudal rays come exclusively from 

 under side of upper, and from lower division of tail. Scales of 

 body brilliant, rhomboidal, wavy, serrated on posterior margins, 

 color light brown. This fish is embalmed and not petrified. No 

 ridge of bone is seen to indicate the vertebral column, hence the 

 bones must have been cartilaginous and compressible. The gill 

 plates are too confusedly compressed to be dissected. I cannot 

 find in any published book any figure of a fossil fish identical 

 with this. It is evidently a Palseoniscus, and is probably a young 

 individual, as seems to be indicated by its small size, and the 

 delicacy of its scales. I shall name it, provisionally, PalcBonis- 

 cus Alherti^ in commemoration of its being the first fossil fish 

 discovered in Albert County, in New Brunswick. 



P. Brownii. This beautiful fish was found by Mr. Brown, the 

 captain of the mine, subsequent to my first visit to Hillsboro'. It 

 is one of the largest, or full-grown species. It was unfortunately 

 broken in the operation of extracting it, but it still is a very valu- 

 able specimen. This being the first fossil fish found by the chief 

 miner, I have named it Palceoniscus Broivnii. 



Description. — Fish nearly whole. It is one of the largest 

 species yet found, and its length is three times the greatest width 

 of its body; whole length, 5^^ inches; breadth, l-f^^y inches; 

 head broken off just in front of pectoral fin ; extremity of tail 

 broken ; abdominal fin missing, it having been broken in getting 

 out the specimen. Dorsal fin, a little behind middle of body, 

 opposite to, or rather a little in front of anal. 



P. Cairnsii. This is a perfect fish of the genus Palseoniscus 

 which was found on the third of June last. In its general form 

 and appearance it resembles the PalcBoniscus elegans of Prof. 

 Sedgewick, {Lond. Geol. Trans. 2d series. Vol. iii. Fig. 1,) and 

 Agassiz, {RecJierches sur les Poissons Fossiles, Vol. ii. Tab. 10, 

 Fig. 5,) but it differs from that species in the striation of the 

 scales, the striss of the Hillsboro' species being parallel to the 

 anterior and lower margins of the scales, and the shape of the 

 scales differing essentially from Mr. Sedgewick's species. 



Description. — Fish, long and slender, 4^ diameters of its 



