1849.] Catalogue of Malayan Fishes, 1 405 



presents a naked, indistinct, skinny hem. The abdominal surface of the 



body is smooth, naked. 



Length from the point of the snout to the mouth, . . ft. 2£ inch. 



From the mouth to the anus, 1 Of 



From the anus to the apex of the tail, 1 7£ 



Distance between the eyes, , 2f 



Greatest breadth of the disk, 1 4 



A single female occurred at Pinang in December 1843. 



Gen. Trygon, (Adanson,) Millie?' und Henle 1841. 



Disk oval or rhombic ; tail as long as the body or longer, without 

 hem, or with hems not extending to the apex. Mouth a little arched. 

 Teeth with a central point or transversal tubercle, which in some is 

 rough, with a more or less distinct transversal furrow in front and 

 behind ; the furrow of the lateral teeth becomes more distinct. The 

 whole surface is more or less wrinkled. Membranous valve of the upper 

 jaw with a straight, deeply fringed margin ; a second posterior valve 

 deeply notched. In the lower jaw behind the teeth appear generally 

 several papillae. 



A. Tail without fin. 



Trygon uarnak, (Forskal.) 



Raja ommes scherit, Forskal, Descr. IX. 



Raja uarnak, ibid. 18, No. 16, b. 



Raja uarnak, Linne : Syst. 1509. 



Raja uarnak, Bloch-Schn. 364. 



Pastinachus uarnak, Ruppell : Neue Wirbelth. Fische, 69, 



Taf. 19, Fig. 2. a. b. 



(Icon). Trygon russelli : Gray: 111. Ind. Zool. II. PI. 100. 



Trygon variegatus, McClelland : Calcutta Journal of Nat. 



Hist. I. 60, PI. II. Fig. 2. 



Trygon uarnak, Muller und Henle, 158.* \t ai n\ 



Trygon uarnak, Var. 1, Muller und Henle, 158 J \ AduU ') 



* M. M. Muller and Henle, quote as synonymes : 



The quotation, which has been repeated by Sir John Richardson, 1. c, is a mis- 

 take. The two names occur neither in page 51, nor in the " Alphabetisches Ver- 

 zeichniss" of Dr. Ruppell's Atlas. 



