300 REPORT OF COMMISSIONER OF FISH AND FISHERIES. [76] . 
This small fiounder abounds in deep water about San Franejsco, but 
comes near the shore farther north. It is exceedingly slimy when first 
taken. The large specimens are considered excellent as food, the smaller 
are thrown away. I[t rarely reaches the weight of a pound. 
Genus XXX VITI.—GLYPTOCEPHALUS. 
Glyptocephalus Gottsche, Wiegmann’s Archiv, 1835, 156 (saxicola = cynoglossus). 
TYPE: Glyptocephalus saxicola Gottsche= 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 vertebrae, and 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. 
a. Pectoral fins very short, not faleate, that of right side about half Jength of head. 
Eyes large, about 3 in head, close together. Head 5in length, depth 22 (23 to 3). D. 
10Lto llc. A. 87to99. Lat. 1.125. Vertebre 58. Color grayish-brown; fins with 
dark spots; tip of pectoral dusky above .......-..----..:.---- CynoGLossus, 90. 
aa. Pectoral fin of colored side falcate, longer than head. Eyes large, 32 in head, 
close together. Head 4? in length, depth 3. D. 94 to106; A. 79 to 89 ; Lat. 1. 138. 
Vertebre 13 + 52= 65. Color uniform brown, the fins darker, the blind side 
dusted, with: dank pointes 2. ests ke cede ne > oe eee ctlnins bees nee ZACHIRUS, 91. 
90. GLYPTOCEPHALUS CYNOGLOSSUS. 
(THE CRAIG FLUKE.) 
[Plate XIX.] 
Pleuronectes, sp., Gronow, Museum Ichthyol., 1, iv, 39, &c. (Belgium.) 
Pleuronectes cynoglossus Liuneus, Syst. Nat., ed. x, 1758, 269 (after Gronow). Giin- 
ther, iv, 449. Day, Fishes Great Britain, ii, 30, pl. 103. (Lofoten, Finmark) 
(and of European writers generally.) 
Glyptocephalus cynoglossus Gill, Proc. Acad. Nat. Sci. Phila., 360, 1873. Goode & 
Bean, Proc. U. 8. Nat. Mus., 1875, p. 21. (Salems Mass.; Halifax; La Have 
Bank; Bedford Basin, Halifax ; Eastport, Me.) Goode, Proc. U. S. Nat. 
Mus. : ‘1880, 337. (Deep sea, eh coast New England.) Goode, Proc. U. 
S. Nat. hicks 1280, p. 475. (Deep sea, New England coast.) Collett, Norske 
Nord-Havs el 1880, p.150. (Lofoten; Tana Fjord, Finmark.) Goode & 
Bean, Bull. Mus. Comp. Zoology, xix, 1883, 195. (Station 343.) Jordan & 
Gilbert, Syn. Fish. N. A., 1882, 838. Goode, Nat. Hist. Aquat. Anim., 1884, 
Solea cynoglossa Rafinesque, Indios di Ittiologia Siciliana, 1810, 53 (based on the 
; Pole or Cynoglossum of Rondelet). 
Platessa pola Cuvier (Régne Animal, 1817). Lacépéde, Hist. Nat., Poiss., edition of 
1832, vi, 50, and of several Rie feed 
Pleuronectes saxicola Faber, ‘‘ Tidsskr. f. Natury., 5 B., 244, 1828.” 
Glyptocephalus saxicola Gottsche, Wiegmann’s Archiy, 1835, 156. 
Platessa saxicola Kroyer, ‘‘ Danmark’s Fiske, 1843, 338.” 
