444 



TELEOSTEI 



Family LOBOTIDAE. With conical teeth, a toothless palate, and very 

 protractile mouth. 



FIG. 459. 



Ditrema argentcum, dissected to show the fully developed young, ready for expulsion 

 by the genital orifice, o. a, folds of the ovarian sac ; r>, anus. (After Giinther.) 



-dr. 



FIG. 400. 



Labrus maculatus, Bl. (Wrasse, from specimens in British Museum.) A, ventral view of 

 skull, with dorsal portion of branchial arches. B, dorsal ,view of lower jaw and ventral 

 portion of branchial arches, ar, articular ; b 1-2, two basibranchials ; bh, basihyal ; or, fourth 

 ceratobranchial; ch, ceratohyal ; d, dentary ; eb i-J, pharyngobranchials ; hb, hypobranchial ; 

 l.ph, lower pharyngeal (5th ceratobrauchials) ; mx, maxilla ; op, opercular ; pa, parasphenoid ; 

 pal, palatine ; pmx, premaxilla ; pop, preopercular ; q, quadrate ; t, pharyngeal teeth. 



