SCIENTIFIC SURVEY. 59 



Order Hyperotreti ; (Bona.) Muller. 



The representatives of this order resemble those of the other, 

 (Hyperoartii,) except in the respiratory organs. The branchi^ 

 are bursiform and fixed, receiving the streams of water directly 

 from the throat or oesophagus, through short tubes communicating 

 With each sac. The water is discharged through tubes which either 

 severally open externally, or into two lateral and longitudinal 

 canals, directed backwards and discharging by as many orifices on 

 each side of the medium line of the ventral surface. 



Order Pharyngobbanchii ; Muller. 



There is but a single genus embraced in this order, and this is 

 the very lowest in point of organization of all fishes. It has no dis- 

 tinct head, and no heart ; body elongated and compressed. This 

 brings us to the foot of the structural series following it, according 

 to the anatomical characters as laid down by Muller and the great 

 comparative anatomist, Professor Owen of England, and modified 

 in its arrangement by Professor Gill, upon whose description we 

 have drawn pretty freely. 



T-hat it is perfect the authors themselves do not pretend, but it 

 comes nearer to the scheme of natural orders than anything that 

 has yet been promulgated, and will help greatly to the desired 

 consummation of a perfect classification, according to the true 

 plan of nature, so much desired and sought for by every naturalist. 



CATALOGUE 



OR SYNOPSIS OF A PART OF THE FISHES OF MAINE, ARRANGED ACCORD- 

 ING TO PROF. GILL'S CLASSIFICATION. 



Sub-class Teleostei, Muller. Order Teleocephali, Gill. 



Sub-order Physoclisti, Bona. 



Percoid family. 



Perca flavescens, Mitch., Yellow or brindle perch. 

 Roccus lineatus. Gill, Striped bass. 

 Morone Americana, Gill, White perch. 

 Pomotis vulgaris, Guv., Bream, flat fish. 

 Pomotis appendix, Mitch., Pumpkin seed. 



Sparoids. 

 Pagrus argyrops, Guv., Big porgee. 



