[29] FLOUNDERS AND SOLES. 253 
Dr. Day has adopted Giglioli’s determination of the identity of this 
species with the Arnoglossus bosci. The descriptions of the latter spe- 
cies certainly agree closely with our specimen of Lepidorhombus. We 
have therefore placed bosci in the synonymy of Whiff-iagonis. Vinci- 
guerra apparently regards bosci as specifically distinct from the others, 
although he places both in the genus Arnoglossus. The appropriate 
specific name of megastoma has been usually taken for this species, but 
the unmusical name of whiff-iagonis applied to it by Walbaum has ten 
years’ priority. This name is given in honor of the “ Reverend George 
Jago, of Loo.” 
Our specimen is from the coast of France. 
26. LEPIDORHOMBUS NORVEGICUS. 
Pleuronectes cardina Fries, Vet. Akad. Handl., 1838, 181 (not of Cuvier). 
Rhombus norvegicus Giinther, Cat. Fish. Brit. Mus., iv, 1862, 139 (after Fries). Collett, 
Norges Fiske, 1875, 139. (Christiania; Bergen; Bodo.) 
Habitat.—South coast of Norway to the Arctic circle. 
This species is known to us from descriptions only. According to 
Professor Collett, “it is distributed, although in scanty numbers, from 
the south coasts up to the polar circle.” It would appear to be very 
close to the preceding species, differing somewhat in the numbers of 
the fin-rays. 
Genus XV.—CITHARUS. 
Pleuronectes Bonaparte, Catalogo Metodico dei Pesci Europei, 1846 (linguatula, the 
only Linnzan species mentioned). 
Citharus Bieeker, Comptes Rendus Acad. Sci. Amsterdam, xiii, Pleuronevt., 6, 1862_ 
(linguatula). 
TYPE: Pleuronectes linguatula L. 
This well-marked genus, an ally of Lepidorhombus and of Arnoglossus 
contains but a single species—a rather rare inhabitant of the Mediter- 
ranean. 
ANALYSIS OF THE SPECIES OF CITHARUS. 
a. Body elongate, with soft flesh and large caducous scales. Mouth very large, 
oblique ; the maxillary 2 in head; lower jaw projecting ; some canine teeth, es- 
pecially in front of upper jaw; two or three rather large teeth on vomer; eyes 
large, close together; left ventral on the abdominal ridge, a little in prea of 
right ; its base scarcely lengthened; gill-rakers slender, of moderate length, X +9; 
no foramen in gill septum ; dorsal beginning before the eye on right side; caudal 
pointed ; fins all high, but fragile; head, 3% in length; depth, 23; D. about 65; 
anal, 45; lat. 1., 37; color, grayish, translucent.................- LINGUATULA, 27. 
27. CITHARUS LINGUATULA. 
Pleuronectes linguatula Linnieus, Syst. Nat., ed. x, p. 270, 1758 (after Artedi), and of 
early authors. 
Citharus linguatula Giinther, Cat. Fish., iv, 418, 1862. Steindachner, Ichthyol. Berichte 
1865, Sechste Fortsetzung, p. 51 (Barcelona, Alicante, Cadiz), and of most re- 
cent authors. 
