PAKKER: OPTIC CHIASMA. IN TELEOSTS. 



227 



represented each by both dextral and sinistral individuals and their 

 consideration will be reserved till later. The conditions found in the 

 remaining twenty-five, each of which was represented by specimens 

 either exclusively dextral or sinistral, are recorded in Table III. 



TABLE III. 



Familt Pleitkonbctidae (Floundeks). 



Subfamily Hippoglossinae (Halibuts). 

 Species dextral or sinistral. 



^Atheresthes stomias (Jordan and Gilbert). San 

 Francisco Markets 



lEopsetta jordani (Loclcington). San Francisco 

 Markets 



2 Hippoglossoides platessoides (Fabricius). Salem, 

 Mass 



1 Psettichthys melanostictus Girard. San Fran- 

 cisco Markets 



2 Paralichthys brasiliensis (Ranzani). Callao, 

 Peru 



1 Paralichthys dentatus (Linnaeus). Woods Hole, 

 Mass 



1 Paralichthys albiguttus Jordan and Gilbert. 

 Anclote, Fla 



Subfamily Pleuronectinae (Flounders). 

 Species dextral. 



2 Hypsopsetta guttulata (Girard). San Diego,-- Cal. 



1 Parophrys vetulus Girard. San Francisco 



Markets 



1 Isopsetta isolepis (Lockington). San Francisco 



Markets 



2 Oncopterus darwini Steindachner. East Pata- 



gonia 



Limandaferruginea (Storer). Massachusetts Bay. 

 ^ Fseudopleuronectes americanus (Walbaum). 



Martha's Vineyard, Mass 



2 Pleuronectes platessa Linnaeus. Triest, Austria. 

 2 Liopsetta putnaiui (Gill). Salem, Mass. . . . 

 1 Glyptooephalus zachirus Lockington. San 



Francisco Markets . 



