PTKROMYLAEUS PUNCTATliS. 439 



Pteromylaeus bovina. 



Myliohnlis bovina Geoffroy .Saint-Hilaire, 1827, Descript,. Egypt, 1, p. 323, p!. 26, f. 1; GiJNTH., 1870, 



Cat. fishes Brit, mus., 8, p. 490; Moreau, 1881, Poiss. France, 1, p. 446. 

 Myliobates aquila Muller, 1835, Anat. Myxin., 1, pi. 9, f. 13. 

 Myliobatis aquila Bonaparte, 1841, Icon. Fauna Ital., Pesci; Lowe, 1844, Fishes Madeira, pi. 15; 



Canestrini, 1872, Ital. pesci, p. 60. 

 Myliobatis episcopus Valenciennes, 1843, Ichth. Canar., p. 98, pi. 24. 

 Myliobatis bonaparli Dumeril, 1865, Elasm., p. 635. 



Shape like that of Aetobatus, but stouter. Disk about twice as wide as 

 long. Head large, prominent; snout produced, narrower than the skull, blunted 

 at the end. Rostral fins at a lower level and separated from the pectorals along 

 the side of the head. Pectorals about as wide as long, front margin convex, 

 hind margin concave outer angle acute, falciform. Anterior nasal valves con- 

 fluent, free behind, somewhat notched in front of the teeth. Teeth in pavement, 

 in seven rows. Median six to eight times as broad as long, outer narrow. 

 Spiracle large hardly visible from above. Ventrals rather elongate, rounded 

 behind. Dorsals small, rounded, origin close behind ends of ventral bases. 

 Tail about three times as long as the disk. A serrated spine. No orbital horn. 

 Skin rough on old individuals. 



Back of adults brown; of younger brown with seven or eight, more or less 

 indistinct, transverse stripes of whitish. 



Mediterranean and neighboring Atlantic. 



Pteromylaeus punctatus. 



Myliobatis punctatus Maclay & Macleay, 1886, Proc. Linn. soc. N. S. W., 10, p. 675, pi. 46, f. 1-6. 

 Aetobatis punctata GtJNTH., 1910, Siidsee fische, 3, p. 497. 



Snout long, triangular, pointed ; rostral fins not continuous with the pectorals. 

 "The teeth plates of the upper jaw are nearly twice as wide as the lower (48 

 mm. the upper, 27 mm. the lower). These plates consist of many longitudinal 

 rows of teeth, of which the middle rows are longest" [?widest]. "On the back 

 of the mouth there are rows of papillae on the palate, seven in the first row and 

 four in the second, there are similar but smaller papillae on the sides of the teeth 

 of the lower jaw. " Nasal valves united in a broad flap, acute angled and deeply 

 notched in the middle. Eyes small, pupil vertical. Pectorals broad, falciform, 

 acute on the outer angle, convex on the front margin, concave on the posterior. 

 Dorsal origin near the ends of the pectoral bases, end of fin near the mid length 

 of the ventral fins. Ventrals elongate, narrow. A serrated spine on the tail. 



