[5] 



FLOUNDERS AND SOLES, 



229 



Parophrys. 

 Inopsetta. 

 Lepidopsetta. 

 Limanda. 

 Platessa I Pseudopleuronectes. 

 Platessa. 

 Flesiis. 

 Liopsetta. 

 „ Platichthys. 



MlCROSTOMUS. 



Cyxicoglossus. 

 oxcopterus. 



IV. — OXCOPTERIX.E. 



V. — SOLEIN\E= 



c Apionichthys. 

 APIONICHTHYsj AeUrop8i8 , 



Gymxachirus. 



c Achirus. 



ACHIRUS J Bai08Uma , 



i Monochirus. 



Moxochirus< Microchiru8. 

 ( Quenselia. 



SOLEA. 



Brachirus. 



Symphurus< 



r Sympliurus. 

 I Bascanius. 



Delothyris. 

 Charybdia. 

 Bibronia. 



^Acedia. 



VI.— Cyxoglossix.e. 



1 



} Larval forms. 



ANALYSIS OF SUBFAMILIES OF PLEUBOXECTIDjE. 



a. Flounders : Edge of preopercle free ; mouth with developed teeth ; pectoral and 



ventrals well developed (one pectoral* or one ventral occasionally absent). 



b. Mouth nearly symmetrical, the dentition nearly equally developed on both sides, 



the gape usually, but not always, wide. 



c. Ventral fins symmetrical, similar in position and in form of base, the ventral 



fin of the eyed side not being extended along the ridge of the abdomen. 



HlPPOGLOSSIX JE I. 



ce. Ventral fins unsymmetrical, dissimilar m position and usually also in form, 

 the ventral fin of the eyed side being extended along the ridge of the ab- 

 domen. Eyes and color on the left side Rleuronectinje II. t 



* Both pectorals are wanting in the genus Mancopsetta Gill (= Lepidopsetta Gthr.), 

 an antarctic member of the Pleuronecliuai. 



t In the Samarinw, the eyes and color are on the right side, the mouth is small bu„ 

 nearly symmetrical, the ventral fins are both lateral but with base somewhat pro- 

 longed, the gill-rakers are minute, and in most of the species some of the dorsal rays 

 are filamentous and simple, resembling spines. The group, like the One opterince, seems 

 to lie between Pleuronectince and Platessinw. It seems to include the genera Samaris, 

 Lophonectes, Poccilopsetta, and Nematops, all belonging to the Indo-Pacific fauna. 



