330 REPORT OF COMMISSIONER OF FISH AND FISHERIES. [106] 
6. CHARYBDIA RHOMBOIDICHTHYS. 
Charybdia rhomboidichthys Facciola, Nat. Sicil., 1885, 6 (Messina). 
Form, oval; the two outlines similar; snout, obtuse, somewhat prom- 
inent; teeth, insensible; eye, 4$ in head, the right a little above the 
left; none of the dorsal rays prolonged; scales, cycloid, thin; lateral 
line without arch; length 40™™. D. 99, A. 74, V. 6. 
This form seems to be allied to Syacium and Arnoglossus. 
7. BIBRONIA LIGULATA. 
Bibronia ligulata Cocco, 1. c., 1844 (Messina). Facciola, Nat. Sicil., 1885, 4 (Messina). 
This form is known from specimens one-third of an inch in length. If 
we suppose that in Symphurus the pectoral fins become atrophied with 
age, this may well be the larva of Symphurus nigrescens. 
8. BASCANIUS TZ:DIFER. 
Bascanius tedifer Schivddte, ‘* Naturhist. Tydsskrift, v, 269, 1867” (Oceanic). 
We have not seen the original description of this form, but from the 
references made to it by other authors it would appear to be a larval 
Symphurus. 
RECAPITULATION. 
The following is the hist of the genera and species of flounders now 
recognized by us as occurring in the waters of North America and 
Europe: F 
The general distribution of each may be indicated by the following 
letters : 
K. Europe (North of Spain). 
M. Mediterranean Sea. 
B. Bassalian or deep-sea fauna of the Atlantic. 
G. Greenland fauna. 
N. East coast of United States; Cape Cod to Cape Hatteras. 
S. South Atlantic and Gulf coast. 
W. West India fauna. 
. Brazilian fauna (Rio). 
. Patagonian fauna (Terra del Fuego). 
. Panama fauna. : 
. Chilian fauna (Valparaiso), 
. Californian fauna. 
. Alaskan fauna. 
\ 
FPadwHA 
Subfamily I.—HIPPOGLOSSINA. 
1. Atheresthes (Jordan & Gilbert). 
1. Atheresthes stomias (Jordan & Gilbert). A. 
2. Platysomatichthys Bleeker. 
2. Platysomatichthys hippoglossoides (Walbaum). G. 
3. Hippoglossus Cuvier. 
3. Hippoglossus hippoglossus (Linneus). E. G. A. 
