ZOOLOGY. 



16. Trichopus. Bodi/ compressed; ventral fms with 

 extremely long Jilament, 



17. Scarus. Jaws bony, divided in the middle, crenated on 

 the edges ; ieeth connate, and conglomerate. 



J 8. Sparus. Gilt-Head. Bodi/ compressed; fore-teeth 

 sharp ; grinders flat • gill-membrane five rayed ; gill' 

 covers scaly ; dorsal fm extending the whole length of 

 the back ; tail forked. 



19. GompJiosus. Jaws lengthened into a tubular snout 

 teeth small, the front ones longer. 



20. Labrus, Wrasse. Teeth conical, long ; one tubercU' 

 lated bone in the bottom of the throat, two abovea oppo- 

 site to the other ; dorsal fm extending the whole length 

 of the back, with a slender skin extending beyond the 

 points of each ray ; tail rounded ; gill-covers scaly^ 

 the membrane from four to six rayed. 



21. Ophicephalus. Head covered with dissimilar scales^ 

 bodij elongated. 



22. Lonchiurus* The ventral placed before the pectoral 

 JinSj separate ; tail lanceolate ; head scaly. 



23. Scicena. Head covered with scales, which strongly ad- 



here : teeth sharp, incurvated; gill-membrane gene- 

 rally six rayed, the gill-eovers scaly ; dorsal Jins two, 

 iw some species concealed in a longitudinal cavity. 



