[97] FLOUNDERS AND SOLES. 321 



125. BRACH3RUS SAVIGNYI. 



Synaptura savignyi Kaup, Wiegmann's Arcbiv, 1858, 97 (Naples). GUntber, iv, 480. 

 1862 (copied). 



Habitat. — Mediterranean Sea. 



We know nothing of this species, except what is contained in the 

 scanty description of Kaup. According to Professor Giglioli, none of 

 the Italian naturalists have seen this species. 



126. BRACHIRUS LUSITANICUS. 



Synaptura lusiianica Capello, Jorn. Ac. Sci. Lisb., v, 1868, 92, and vi, 1869, 153, tab. 

 9, f. 1 (Lisbon). 



Habitat. — Coast of Portugal. 



We have not examined this species, and know it from Capello's 

 description only. 



Genus XL VI.— SYMPHUEUS. 



Syrnphurus Rannesque, Indice all' Ittiologia Siciliana, 1810,52 {nigrescens). 



Bibronia Cocco, Alcuni Pesci del mare di Messina, 1844. 15 (ligulata ; larval form). 



Plagusia Cuvier, Regne Animal, ed. ii, 1828 (based on Plagusia of Brown ; name pre- 

 occupied in Crustaceans, Latreille, 1806). 



Plagiusa Bonaparte, Catalogo Metodico, 1846, 51 {lactea; substitute for Plagusia 

 preoccupied). 



Aphoristia Kaup, Wiegmann's Arcbiv, 1858, 106 (omata). 



Glossichthys Gill, Cat. "Fish. E. Coast N. A., 51, 1861 (nometi nudum : plagiusa). 



Ammopleurops Guntber, Cat. Fisb. Brit. Mus., iv, 1862, 490 (lacteus = nigrescens). 



? Bascanius Scbiodte, "Naturhist. Tydsskr., v, 269, 1867" (tcedifer ; larval form). 



Acedia Jordan, subgenus novum (nebulosus). 



Type: Symphurus nigrescens Eafinesque. 



We have adopted for this genus the name Symphurus instead of 

 Aphoristia, as the so-called Ammopleurops lacteus is a genuine member of 

 the latter genus, and as it seems to be evident that the latter species is 

 the original of the Symphurus nigrescens of Eafinesque. 



The following is Eafinesque's description : 



" III. Gen. Symphurus. Ala caudale acuta, e riunita all' ale dorsali, 

 ed anali, occhj alia sinistra. Osserv. Si dovranno ragguagliare in questo 

 genere due specie del genere Achirus di Lacepede, cioe gli A. Mlineatus, 

 e A. ornatus. " Sp. no. 41. Symphurus nigrescens. Nerastro senza fascie, 

 alluugato, una sola linea laterale da ogni lato." 



This single lateral line assumed to distinguish Ammopleurops from 

 Aphoristia is not a real lateral line, but a depression along the median 

 line produced by the junction of the muscles. 



The species of Symphurus are somewhat mini erous and very closely 

 allied. With the exception of the European Symphurus nigrescens, all 

 of them are American. 



The development of the species is imperfectly known. According to 

 Giglioli, the larvae called Bibronia, may belong to this genus, and so 

 possibly may Delothyris and Charybdia. 

 S. Mis. 90 21 



