REPORT OF COMMISSIONER OF FI«H AND FISHERIES. [136] 



$ TitopKCtla ' Jordan & Goss. 



1616. Isopsetta ischyra Jonliin & Gilbert. A. (1283) 



557.— LEPIDOPSETTA Gill. 



1617. Lepidopsetta biliueata Ayre.s. C. A. (1284) 



558.— LIMANDA Gottscbe. 



1618. Limanda ferruginea Storer. N. (1285) 



1619. Limanda aspera Pallas. A. (128G) 



1620. Limanda beani Goodc. B. (1287) 



559.— PLEURONECTES- Linuteus. (458) 

 ^ Platichthys Girard. 



1621. Pleuronectes Btellatus Tall ;is. A. C. (1288) 



§ Pleuronectes. 



1622. Pleuronectes quadrituberculatus Pallas. A. (1289) 



1623. Pleuronectes glaber Storer. N. (1290) 



1624. Pleuronectes glacialis Pallas. A. (1291) 



^ Pseudopleiirovectes Bleeker. 



1625. Pleuronectes americanus Walbaum. N. (1292) 



560.— GLYPTOCEPHALUS Gottscbe. (459) 



1626. Glyptocephalus cynoglossus Linnscns. N. Eu. B. (1293) 



1627. Glyptocephalus zachirus Lockiugton. C. (1294) 



561.— CYNICOGLOSSUS Bonaparte. (460) 



1628. Cynicoglossus pacificus Lockiugton. C. A. (1295) 



562.— DELOTHYRIS3 Goode. (4G2) 



1629. Delothyris pellucidus Goode. B. (1296) 



563.— MONOLENE Goode. ^46:5) 



1630. Monolene sessilicauda Goode. B. (1298) 



' In opsetta Jot Aan & Goss, subgenus nova, type raroplirijs iachyr us Jordan & Gilbert. 

 ('/5, sinew; ^/7rra, flounder.) Tbis fisb is allied to Pleitronecies atcllat us, hut hm au 

 accessory dorsal brancb totbe lateral line as in Isoptctta inoJcpis, from wbicb it differs 

 in form, and in tbe rougli, loosely imbricated scales. 



*Tbe genus PleuronedeH • &% retained in tbe Synopsis, is uniiatnral, species very 

 diverse in Ibcir cbaracters being retained in it. I bave, therefore, bere recognized 

 its cbief constituents as distinct genera. Parophrys, Isopsetta, Lepidopsetta, and 

 Limanda seem Certainly woifby of sncb recognition. Possibly Platichihys, Inopsetta 

 and Pseudopleuroncctex, also, are wortby of sucb retention. 



'Delothyris Goode. 



(Goode, Proc. U. S. Nat. Mus. 1883, 110; type Thyria peUucidus Goode; name a 

 substitute for r/i.t/ns, ])reoccupied; diJXo?, clear; Ovpi?, window.) Webave nodoubt 

 that tbis is a larval f()rm4|)ossibly of some fi.sli as yet unknown, allied to Citharichthya. 

 Small transpa,rent flounders liaA'ing all tbe cbaracters of Delothyris, but less elongate 

 than D. pellucidus, have been taken by tbe writer at Ke.jr West. These are thought 

 to be larvfe of some Platophrya or Citharichthya. 



