54 THE PLAGIOSTOMIA. 



G INGLYMOSTOM A. 



Ginglymostoma MtJLLER & Henle, 1837, Sitzb. Akad. wiss. 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, httle 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 hrevicaudatum (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. 



Gata Parra, 1787, Hist, nait., p. 86, pi. 34, f. 2. 



Squalus cirratus Bonnaterre, 1788, Ichth., p. 7; Gmelin, 1789, Linn6 Syst., 1, p. 1492; Lac6pI:de, 



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

 Squalus pundulatus Lacep^de, 1800, Poissons, 2, p. 120, pi. 4, f. 3; Schn., 1801, Bloch Ichth., p. 549. 

 Squalus pundatus Schm., ibid., p. 134. 

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

 Ginglymostoma cirratum Muller & Henle, 1841, Plagios., p. 23; Dum^ril, 1865, Elasm., p. 334; 



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

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

 Ginglymostorna caboverdianus Capello, 1867, Jor. sci. math. phya. nat. Lisboa, 1, p. 167, f. 1, 



