238 REPORT OF COMMISSIONER OF FISH AND FISHERIES. [14] 



Hippogloxsus vulgaris Storer, Fish. Mass., 145, 1839. DeKay, New York Fauna, Fishes, 

 1842, 294, pi. 49, f. 157. Storer, Synopsis Fish. N. A., 1847, 475. Lockington, 

 Rep. Com. Fisheries, California, 1878-'79, 39 (Farallone Islands). Locking- 

 ton, Proc. U. S. Nat. Mus., 1879, 71 (San Francisco). Bean, Proc. U. S. Nat. 

 Mus., 1879, G3 (Unalashka and St. Michael's, Alaska, Eastport, Maine). 

 Jordan & Gilbert, Proc. U. S. Nat. Mus., 1880, 454 (Puget Sound, San Fran- 

 cisco). Goode, Proc. U. S. Nat. Mus., 1880, 471 (Fisher's Island, Connecticut, 

 &c.) ; Jordan & Gilbert, Proc. U. S. Nat. Mus., 1881, 66 (SaD Francisco, Cape 

 Flattery). Bean, Proc. IT. S. Nat. Mus., 1881, 242 (San Francisco, Puget 

 Sound, Port Althorp, Chiigachik Bay, St. Paul, Unalashka, St. Michael's. 

 Jordan & Gilbert, Syn. Fish. N. A., 1882, 819. Bean, Cat.Col. Fish. U. S. Nat- 

 Mus., 1883, 20 (Port Althorp, Alaska). Dresel, Proc. U. S. Nat. Mus., 1884, 244, 

 (Davis Straits, Greenland). Goode, Nat. Hist. Aquatic Anim., 1884, 189, 

 plate 54 (Sandy Hook, Montauk Point, Block Island, and northward), and of 

 American writers generally. 



Uippoglo88U8 maximus "Gottsche, Wieginann's Archiv, 1835, 164." 



Hippoglossus gigas Swaiuson, Nat. Hist. Class'n Anim., ii, 1839. 



Hippoglossus ponticus Bonaparte, Catalogo Metodico, 1846, 47 (Black Sea, after 

 Pallas). 



Hippoglossus americavus Gill, Proc. Acad. Nat. Sci. Phila., 1864, 220. 



Habitat. — All northern seas, southward in deep water to France, 

 Sandy Hook, and San Francisco. 



The halibut, the largest and most widely distributed of all the 

 Pleuronectidce, is too well known to require discussion here. 



Genus IV.— LYOPSETTA. 



Lyopsetta Jordan and Goss, Cat. Fish. N. A., 1885, 135 (exilis). 



Type: Hippoglossoides exilis Jordan & Gilbert. 



This genus contains but a single species, a small, soft-bodied flounder, 

 of the waters of the North Pacific. In its technical characters Lyop- 

 setta is very close to Hippoglossoides, of which it might well be regarded 

 a subgenus. The introduction of the name Lyopsetta is to be regretted 

 from its close resemblance to Liopsetta, a word of similar sound, but 

 very different meaning. At the time of the introduction of Lyopsetta, 

 Liopsetta was regarded as an obsolete synonym. 



ANALYSIS OF SPECIES OF LYOPSETTA. 



a. Body rather slender, the flesh soft ; mouth rather small, the maxillary 2$ in head ; 

 teeth small, slender, close-set, nearly uniform. Eyes very large, 3£ in head, 

 separated by a sharp, scaly ridge. Scales rather large, thin, deciduous, weakly 

 ctenoid ; pectorals small, the right pectoral nearly 2 in head. Gill-rakers short, 

 slender, x+9. Head, 4 ; depth, 3£; D. 78, A. 62, Lat. 1., 71. Vertebras 11 + 34 =• 

 45. Pale brown, with dark points ; bronze spots sometimes present ; tins dusky ; 

 dorsal, anal, and ventrals edged with yellow Exilis, 4. 



4. LYOPSETTA EXILIS. 



Hippoglossoides exilis Jordan & Gilbert, Proc. U. S. Nat. Mus., 1880, 154 (off San 

 Francisco). Jordan & Gilbert, Proc. U. S. Nat. Mus., 1880, 454 (Puget 

 Sound, San Francisco, Monterey Bay). Jordan and Gilbert, Proc. U. S. Nat. 

 Mus., 1881, 67 (San Francisco, Point Reyes, Seattle, Puget .Sound). Jordan" 

 & Gilbert. Syn. Fish. N. A., 1882, 827. 



