54 THE PLAGIOSTOMIA. 



GINGLYMOSTOMA. 



Ginglymostoma Muller & Henle, 1837, Sitzb. Akad. wisa. Berlin, p. 113; 1841, Plagios., p. 22. 



Body medium, depressed and broadened forward, compressed posteriorly. 

 Head broad, snout short, blunt. Nostrils near the end of the snout; anterior 

 nasal valves reaching the mouth, broadly separated by attachment across the 

 symphysis, each with a cylindrical cirrus at the outer edge; posterior valve a 

 fold on the outer side of the groove. Mouth wide, little curved, inferior. Teeth 

 small, in If or more rows, compressed 3-5 cusped, with a strong sharp cusp at 

 each side of which there is a pair of denticles, median cusp strongest, several 

 series in function, eyes small, without a fold. Spiracle minute, at a distance 

 behind the eye. Gill openings, moderate, fourth and fifth widest and above 

 the pectoral, close together. Dorsals approximated, rather large, first above 

 the ventrals, larger; second origin forward of anal. Caudal large, subcaudal 

 not lobed. 



Tropical Atlantic, Pacific, and Indian Oceans. 



Fin angles rounded 

 anal small 



cirrus as long as narial valve 



subcaudal narrow cirratum (page 54) 



anal large 



cirrus much shorter than narial valve 



subcaudal deep ..... brevicaudatum (page 55) 

 Fin angles sharp 



cirrus hardly reaching the teeth 



subcaudal feebly lobed .... ferrugineum (page 56) 



Ginglymostoma cirratum. 



Plate 7, fig. 4-6. 



Le Barbillon Broussonet, 1780, Mem. Acad, roy., p. 656. 



Gala Parra, 1787, Hist, nat., p. 86, pi. 34, f. 2. 



Squalus cirratus Bonnaterre, 1788, Ichth., p. 7; Gmelin, 1789, Linn6 Syst., 1, p. 1492; Lacepede, 



1798, Poissons, 1, p. 245; Schn., 1801, Bloch Ichth., p. 128. 

 Squalus punctulatus Lacepede, 1800, Poissons, 2, p. 120, pi. 4, f. 3; Schn., 1801, Bloch Ichth., p. 549. 

 Squalus punclalus Schn., ibid., p. 134. 

 Squalus argus Bancroft, 1835, Zool. journ., 6, p. 82. 

 Ginglymostoma cirratum Muller & Henle, 1841, Plagios., p. 23; Dumeril, 1865, Elasrn., p. 334; 



Gunth., 1870, Cat. fishes Brit, mus., 8, p. 408. 

 Ginglymostoma fulvum Poey, 1861, Memorias Cuba, 2, p. 342; 1868, Repertorio, p. 455. 

 Ginglymostoma caboverdianus Capello, 1867, Jor. sci. math. phys. nat. Lisboa, 1, p. 167, f. 1. 



