1098 



SCANDINAVIAN FISHES. 



THE STING-RAY (sw. spjutrockan). 

 TRYGOX PASTINACA. 



Figs. 313 and 314. 



Tail, irhich occupies about half {in the young rather more than half) the length of the body, furnished both above 



and below with a shallow dermal fold, the upper, however, insignificant. Length of the disk about 80 — 85 % 



(88 %) of its breadth. Tip of the snout more or less obtuse, lateral tips of the disk (of the pectoral fins) 



rounded. Ventral fins rectangular, with the inner posterior angle strongly rounded. 



Length of the head (from the tip of the snout) to 

 the occiput about ^ %, (37—40 %), to the iirst gill- 

 opening .somewhat more than \ 3 (34 — 36 %), of that 

 of the disk. Length of the snout (from the anterior 



mouth. Skin of young specimens entirely smooth, of 

 old often tuberculated in the median line of the back 

 and above the shoulder-girdle. Coloration above of a 

 grayish or l)rownish yellow, or darker, of a Ijlackish 



J^J 



Fig. 313. 7'rijijon pastinaca, $. 



~--< 



From Mouiit KuUen, July 24111, 1849. Barcu Gyllenstjerna. The property of tlie 

 Miiseuin of Lund. 



margin of the eyes) about " ., of the former length of 

 the head. Nasal valvule, which is attached by a nar- 

 I'ow frenum almost throughout its length, of a rect- 

 angular form, about twice as broad as long", and its 

 breadtli at the base somewhat greater than the widtli 

 of the moutii. Greatest depth of the body (the thick- 

 ness at tlie slioulder-girdie) somewhat less than half 

 the length of the head to tiie occiput. Teeth of the 

 upper jaw, with thimble-like indentations on their sur- 

 face, set in about 20 — 30 rows directed obliquely liack- 

 wards. Distance of the caudal spine from the root of 

 the tail about equal to the length of the head. Breadth 

 of the tail at the base aliout e(iual to tiie width of the 



green, in front grayish, in the young sometimes spotted 

 with white; under surface of a dirty white. 



Si/H. Piistinaca, la Pastenade de iner, on Tourterelle, ou Tareroudc, 

 Belon, Nat., Div. Poiss., p. 82. Pastinaca marina Oxy- 

 rinchos, Sohonev., Ichthijol. Slesv. Hols., p. 58. Raja cor- 

 poie glabro, aculeo longo auterius serrate in cauda apterygia, 

 .\BT., MUIii/oL, Gen. Pise, p. 71; S;/ii., p. 100. 

 Raja Pastinaca, Lin., fSi/st. Nat., ed. X, toni. I, p. 232; 

 Pe.n.s., Brit. Zool. (ed. 1776), torn. Ill, p. 83; Retz., Fna 

 Suee. Lin., p. 304; DoNOV., Brit. Fish., tab. XCIX; Cuv. 

 {Trygon), Eign. Anim., ed. I, loiii. II, p. 136; NiLSS. (Raja), 

 Prodr. Ichthyol. Scand., p. 120; Parn. (Trygnn), Mem. 

 Wern. Nat. Hist. Soc., vol. VII, p. 440; BoN.iP., Iconogr. 

 Fna Ital., Pesci, tab. 156; Nobpm. in Demid., Voy. Russ. 

 Mer., torn. Ill, p. 549; MUll., Hle, Hyst. Besclir. Plagiost., 

 p. 161; Ekstr., Gbgs Vet., Vitt. Sauili. Handl., Ny Tidsf.. 



" Lengtii of the nasal valvulL- 48- 



iif its breadtli at the base. 



