376 THE PLAGIOSTOMIA. 



tail once length of body, and more ; papillae 2 



gray with blackish margins; snout blunt marginatum (page 378) 

 tail thrice length of body, or more ; papillae 2 



brown, tail without bands; tubercles depressed bleekeri (page 379) 

 tail one and one half times length of body ; papillae 2 



reddish brown, yellow spotted ; width and length nearly equal 



imbricatus (page 379) 

 tail one and one half times the body; papillae 4; colors uniform 



ponapensis (page 3S0) 

 tail longer than body; tubercles with stellate bases 



white, tail gray to brown; papillae 5 . . microps (page 381) 



Dasybatus uarnak. 



Raia uarnak Forskal, 1775, Descript. Anim., p. viii, ix, 18. 



Raia uarnak Gmelin, 1789, Linn6 Syst., 1, p. 1509. 



Trygon uarnac Cuv., 1S17, Reg. anini., 2, p. 136. 



Trygon russellii Gray & Harotvicke, 1834, 111. Ind. zool., 2, pi. 100. 



Pastinachus uarnak Ruppell, 1835, Neue wirb. Abyssinien, Fische, p. 69, pi. 19, f. 2-2l>. 



7 , ri/3o;iuamofcMuLLER&HENLE,1841, Plagios.,p. 158; T. Cantor, 1849, Malay, fishes p. 423; Bleeker, 

 1852, Verh. Bat. gen., 24, Plagios., p. 69; Blyth, 1860, Journ. Asiat. soc. Bengal, 29, p. 44; Dumeril, 

 1865, Elasm., p. 585; Day, 1865, Fishes Malabar, p. 277; Gunth., 1870, Cat. fishes Brit, mus., 8, 

 p. 473; Day, 1878, Ind. fishes, p. 737; Annandale, 1909, Mem. Ind. mus., 2, p. 22, fig. 2, pi. 1, f. 

 1, 2, pi. 2, f. 1-la, pi. 3, f. 2; Gunther, 1910, Siidsee fische 3, p. 492. 



Trygon variegatus McClelland, 1841, Calcutta journ. nat. hist., 1, p. 60, pi. 2, f. 2; Blyth, 1860, Journ. 

 Asiat. soc. Bengal, 29, p. 43; Dumeril, 1865, Elasm., p. 587. 



Trygon undulala Bleeker, 1852, Verh. Bat. gen., 24, Plagios., p. 70; Dumeril, 1S65, Elasm., p. 586. 



Trygon parch Bleeker, 1852, Verh. Bat. gen., 24, Plagios., p. 71; Dumeril, 1865, Elasm., p. 590. 



Trygon uarnacoides Bleeker, 1852, Verh. Bat. gen., 24, Plagios., p. 72; Nat. tijds. Ned. Ind., 3, p. 738; 

 Dumeril, 1865, Elasm., p. 586. 



Trygon paslinacoides Bleeker, 1852, Verh. Bat. gen., 24, Plagios., p. 75. 



Trygon ellioti Blyth, 1860, Journ. Asiat. soc. Bengal, 29, p. 41. 



Trygon punctata Gunth., 1870, Cat. fishes Brit, mus., 8, p. 474. 



Trygon (Himantura) oxyrhynchus Sauvaoe, 1878, Bull. Soc. philom., p. 91. 



Disk rhomboid, broader than long, anterior margins nearly straight, 

 meeting in a very blunt angle, snout little produced, outer angles rounded, 

 outer margin somewhat convex, hinder angles broad, blunt. Mouth waved, 

 curves in the bands of teeth abrupt ; six to seven papillae at the bottom, a small 

 median papilla occurring between the two large ones in front. Eyes prominent. 

 Spiracles larger than the eyes. Ventrals oblique on the hind margin, anterior 

 rays much the longer, outer angle very blunt. Tail slender, more than three 

 times the length of the body, without keels or folds. Skin smooth on very 

 young. The specimen measured below has two depressed median tubercles 

 above the shoulder girdle and groups of smaller ones in front of them and behind 



