[97] FLOUNDERS AND SOLES. 321 
125. BRACHBRUS SAVIGNYI. 
Synaptura savignyi Kaup, Wiegmann’s Archiv, 1858, 97 (Naples), Giinther, 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 lusitanica 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 XLVI.—SYMPHURUS. 
Symphurus Ratfinesque, Indice all’ Ittiologia Siciliana, 1810, 52 (nigrescens). 
Bibronia Cocco, Alcuni Pesci del mare di Messina, 1844, 15 (ligulata ; larval form). 
Plagusia Cuvier, Régne 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, Wiegmaun’s Archiv, 1858, 106 (ornata). 
Glossichthys Gill, Cat. Fish. E. Coast N. A.,51, 1861 (nomen nudum: plagiusa). 
Ammopleurops Giinther, Cat. Fish. Brit. Mus., iv, 1862, 490 (lacteus = nigrescens). 
? Bascanius Schiddte, ‘‘ Naturhist. Tydsskr., v, 269, 1867” (tedifer ; larval form). 
Acedia Jordan, subgenus novum (nebulosus). 
TYPE: Symphurus nigrescens Rafinesque. 
We have adopted for this genus the name Symphurus instead of 
Aphoristia, as the so-called Ammoplewrops 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 Rafinesque. 
The following is Rafinesque’s description : 
“TIT. Gen. Symphurus. Ala caudale acuta, e riunita all’ ale dorsali, 
ed anaii, occhj alla sinistra. Osserv. Sidovranno ragguagliare in questo 
genere due specie del genere Achirus di Lacepede, cioé gli A. bilineatus, 
e A. ornatus. “Sp. no. 44. Symphurus nigrescens. Nerastro senza fascie, 
allungato, 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 numerous 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 larve called Bibronia, may belong to this genus, and so 
possibly may Delothyris and Charybdia. 
S. Mis. 90 21 

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