390 FISHES. CYCLOSTOMI. 



T. pastinaca; Cuv. The Sting Ray. Body subrhomboidal, approach- 

 ing to ovate, yellowish olive, smooth ; snout pointed ; tail slender, 

 \vith a long serrated bone towards the base. 2 to 3 feet long. 

 Inhabits European seas Pen. Brit. Zoo/, iii. 125. 



T. tuberculala, Cuv. With subobtuse distant depressed glossy spines 

 down the back and tail ; tail long and slender, with a serrated 

 spine, and without a fin. Inhabits American seas. Shaw, v. 290. 



T. Lymna, Cuv. Body reddish brown above, with numerous oval 

 blue spots of different sizes ; tail longer than the body, marked 

 half its length with two longitudinal blue stripes ; tail pinnated, 

 with one or two spines. Inhabits the Red Sea. Shaw, v. 237- 



T. sephcn, Cuv. Body cinereous brown above, with tubercles on the 

 back and anterior part of the tail reddish ; white beneath ; the three 

 central tubercles largest. 11 feet long. Red Sea. Shaw. v. 288. 



Gen. 19. MYLIOBATIS, Dumeril. Raia, Lin. 

 Head projecting beyond tbe pectoral fins, which are broader 

 transversely than in the other rays, and pointed ; jaws with 

 large flat teeth, in different proportions ; tail extremely long 

 and slender, terminating in a point and armed with a bony 

 spine, serrated on both sides, with a small dorsalfin near its base. 



M. aquila, Cuv. The Sea Eagle. Snout projecting and parabolic ; 

 teeth in the middle of the jaws broader than long, and in one row ; 

 the lateral ones of a hexagonal form, and in three rows. Of large 

 size. Inhabits Mediterranean Sea. Cuv. Reg. An. ii. 137- 



Gen. 20. CEPHALOPTERA, Dumeril. Raia, Schn. 

 Body depressed ; head truncated before ; teeth slender and fine- 

 ly dentated ; five or six branchial openings on each side, be- 

 low ; pectoral fins large, projecting before the head ; tail slen- 

 der, conical, narrower than the body. 



C. Giorna, Cuv. Body blackish above, bordered with violet, white 

 beneath ; horns or appendages blackish, longitudinally striated, 

 with eight rows of tubercles ; pectoral fins triangular ; tail very 

 long. 4 feet broad. Inhabits Mediterranean sea. Shaw^v. pi. 145. 



C. Massena, Risso. Margins of the fins bent back j horns or ap- 

 pendages black at the extremity ; tail with three rows of asperi- 

 ties. Grows to a large size. Mediterranean sea Risso, 15. 



FAMILY III. CHIM^EE.*, Lin. 

 With one branchial opening on each side. 



This group resembles the Sharks in general form ; but all their branchiae open out- 

 wards by a single aperture on each side, which communicates, however, with five 

 others at the bottom of the general cavity. The bones of the upper jaw are represent- 

 ed by the vomer, and hard bony plates in place of teeth occupy the lower jaw. 

 The elongated snout is marked by lines of pores ; and the first dorsal fin, armed with 

 a strong spine, is over the pectorals. The males are recognized as among the Squali 

 by spinous plates at the base of the ventral fins, and a fleshy spinous appendage be- 

 tween the eyes. 



