300 REPORT OF COMMISSIONER OF FISH AND FISHERIES [76] 



This small flounder abounds in deep water about San Francisco, but 

 conies near the sbore farther north. It is exceedingly slimy when first 

 t aken. The large specimens are considered excellent as food, the smaller 

 are thrown away. It rarely reaches the weight of a pound. 



Genus XXXVIII.— GLYPTOCEPHALUS. 



Glyptocephalus Gottache, Wiegmann's Archiv, 1835, 156 (saxicola = cynoglossus). 



Type : Glyptocephalus saxicola Gottsehe==Pleuronectes cynoglossus L. 



This genus is one of the most strongly marked in the family, being 

 distinguished from most of the genera by the greatly increased num- 

 ber of vertebra}, aud from all of them by the remarkable cavernous 

 structure of the bones of the head. 



There are two species known, found in the deep waters of the north- 

 ern seas, the one in the Pacific, the other in the Atlantic. 



ANALYSIS OF SPECIES OF GLYPTOCEPHALUS. 



(i. Pectoral Una very short, not falcate, that of right side about half length of head. 

 Eyes large, about 3 in head, close together. Head 5 in length, depth 2f (2* to 3). D. 

 101 to 11,. A. 87 to 99. Lat. 1. 125. Vertebrae 58. Color grayish-brown ; fins with 

 dark snots; tip of pectoral dusky above CYNOGLOSSUS, 90. 



aa. Pectoral fin of colored side falcate, longer than head. Eyes large, 3f in bead, 

 close together. Head 4| in length, depth 3. D. 94 to 106 ; A. 79 to 89 ; Lat. 1. 138. 

 Vertebrae 13 -f- 52 = 65. Color uniform brown, the fins darker, the blind side 

 dusted with dark points ZachikUS, 91. 



90. GLYPTOCEPHALUS CYNOGLOSSUS. 



(The Craig Fluke.) 



[Plate XIX.] 



Pleuronectes, sp., Gronow, Museum Ichthyol., 1, iv, 30, Ac. (Belgium.) 

 Pleuronectes cynoglossus Linnaeus, Syst. Nat., ed. x, 1758, 269 (after Gronow). Giin- 



ther, iv, 449. Day, Fishes Great Britain, ii, 30, pi. 103. (Lofoten, Einmark) 



(and of European writers generally.) 

 Glyptocephalus cynoglossus Gill, Proc. Acad. Nat. Sci. Phila., 360, 1873. Goode & 



Bean, Proc U. S.Nat. Mus., 1878, p. 21. (Salem, Mass.; Halifax: La Have 



Bank; Bedford Basin, Halifax; Eastport, Me.) Goode, Proc. U. S. Nat. 



Mus., 1880, 337. (Deep sea, south coast New England.) Goode, Proc. U. 



S. Nat, Mus., 1880, p. 475. (Deep sea, New England coast.) Collett, Norsko 



Nord-Havs Expd., 1880, p. 150. (Lofoten; Tana Fjord, Finmark.) Goode &. 



Beau, Bull. Mus. Comp. Zoology, xix, 1883, 195. (Station 343.) Jordan <t 



Gilbert, Syn. Fish. N. A., 1882, 838. Goode, Nat. Hist. Aqnat. Anim., 1884. 

 Solca cynoglossa Rafinesque, Indice di Ittiologia Siciliana, 1810, 53 (based on the 



Pole or Cynoglossum of Roudelet). 

 Platessa pola Cuvier (Regne Animal, 1817). Lac6pede, Hist. Nat,, Poiss., edition of 



1832, vi,50, and of several authors. 

 Pleuronectes saxicola Faber, " Tidsskr. f. Naturv., 5 B., 244, 1828." 

 Glyptocephalus saxicola Gottsche, Wiegmann's Archiv, 1835, 156. 

 Platessa saxicola Kioyer, " Daumark's Fiske, 1843, 338." 



