1888.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 595 



all the species known to the Swede may be acceptable and will show tbe 

 extent of the family that his immediate successors had to deal witb. 

 As enumerated in the tenth edition of tbe Systema Naturae, tbey are 

 identified in tbe following exhibit, wherein tbe European species are 

 distinguished by heavy type, and the generic names based on them 

 (or very near allies) are given in tbe right-band column. 



1. Tricbodactylus 



2. Plagiusa Plagusia, Cuvier, 1829. 



3. Ocellatus Monocbirus, Rafinesque, 1814. 



4. HlPPOGLOSSUS HlPPOGLOSSUS,' CuvitT, 1817. 



5. C ynoglossus Glyptocephalus, Gotlsehe, 1835. 



6. Platessa Platessa, Cuvier, 1817. 



7. Flesus Flesus, Moreau, 1881. 



8. Limanda Limanda, Gottsche, lr>35. 



9. Solea Solea, Quensel, 1806. 



10. Linguatula Citharus, Bleeker, 1862. 



11. Liueatus Acbirus, Lacepede, 1803. 



12. Rhombus Bothus, Rafinesque, 1810. 



13. Dentatus Paralicbtllys, Girard, 1859. 



14. Maximus Scophthalmus, Rafinesque, 1810. 



15. Passer Flesus, Moreau, 1881. 



16. Papillosus Syacium, Ranzani, 1840. 



17. Lunatus Platophrys, Swainson, 1839. 



The genera of true Pleuronectidae thus referred to were proposed in 

 the following cbronological order: 



1810. Botbus, Raf. 



Scopbtbalmus, Raf. 

 1817. Hippoglossus, Cuv. 



Platessa, Cuv. 

 1835. Limanda, Gottscbe. 



Glyptocepbalns, Gottscbe. 



1839. Platopbrys, Swains. 

 Psetta, Swains. 



1840. Syacium, Rauz. 

 1859. Paralicbthys, Girard. 

 1862. Citbarus, Bleeker. 

 1881. Flesus, Moreau. 



FIRST SUBDIVISION OF PLEURONECTES. 



" The first subdivision of the genus Pleuronectes, after the removal 

 of the soles," does not seem " to have been that of Cuvier." Years 

 before, Rafinesque had subdivided the genus and enumerated all the 

 minor genera known to him. 



In 1810, in his Caratteri di alcuni nuovi generi e nuove specie di 

 Animali e Piante della Sicilia (p. 23), he proposed a new generic denom- 

 ination (Bothus) for a portion of tbe genus Pleuronectes, but would have 

 called it Rhombus, after the chief species, had not that name been 

 already used for another genus.* He included in it, besides the "B. 

 rhombus [Pleuronectes rhombus. Lin.]," three supposed new species, B. 

 Pumolo, B. Tappa, and B. imperialis. Of the three species B. Rumolo 



*Porzione delle specie dei genere Pleuronectes degli autori compongono questo 

 uuovo mio genere, il quale si dovrebbe cbiamare Rhombus della principali delle spe- 

 cie che coutiene, se Lacepede nou avesse gia attribuito tal nome ad altro suo genere. 

 II nome di Bothus e perd, un di quelle data da Aristotle di Pesci ai quest' ordine. 



