In some again the slightly elongated and thick tail is termi- 

 nated by a fin*. 



Finally, in others the extent of the wings renders the body 

 very broad and the tail very short f . The 



Anacanthus, Ehrenb. 



Resembles a Trygon, but the long and slender tail has neither fin 

 nor spine. There is a sjDecies in the Red Sea whose back is furnished 

 with a coarser shagreen than that of the Sephen, and with stellated 

 granules \. 



Myliobatis §, Dumer. 



Have the head projecting beyond the pectorals, which are larger 

 transversely than in other Rays, giving them somewhat the appear- 

 ance of a bird of prey with outstretched wings, which has caused 

 them to be compared to the Eagle. The jaws are furnished with 

 broad flat teeth, placed like flags in a pavement, and differing in size 

 according to the species: their extremely long and slender tail termi- 

 nates in a point and is armed, like that of a Trygon, with a strong 

 spine notched on both sides, supporting near its base and before the 

 spine, a small dorsal. Sometimes there are two or more spines ||. 



The snout of some projects in a parabola. Such as 



R. aquila, L. ; Aigle tie mer ; M our hie ; Ratepenade ; Bccuf; 

 Pesce ratto, &c. ; Duham., part II, Sect IX. pi. x. ; and the 

 teeth, Juss. Ac. des. Sc, 1721, pi. l/^. (The SeaEagle.) The 

 middle plates of its jaw are much wider than they are long, and 

 placed in a single row ; the lateral ones, which are regular hexa- 

 gons, in three rows**. It attains a large size, and is found in the 

 Mediterranean and the Atlantic. 



In others, the Rhinoptera, Kuhl, the snout is divided into two 

 short lobes, under which are two similar ones ff. 



* The Raie croisie, Lacep., Ann. Mus., IV, lv, 2. 



•f* P. kunsua, Cuv., Tenhee kunsu, Russel, I, 6. ; — R. Madura, Lesueur, Ac. Nat. 

 Sc. Phil., or micrara, Bl., Schn., 360. 



J The Aiereba, Marcgr., 175 (Raia orbicularis, Bl., Schn.), belongs, perhaps, to 

 this division. 



§ MuHobatos, from mule (grindstone), referring to the form of the teeth. 



|| See the tail with five spines, Voy. de Freycin., Zool. 42, f. 3. 



f N. B. The fig. of Bloch, 81, is not that of the aquila, but of a Trygon with a fin 

 placed before the spine. 



** Add: Myl. bovina, Geoff., Eg. Poiss., pi. xxvi, f. 1 . ;— R. narinari, L., Marcgr., 

 75, and under the name of aigle, Lacep., I, vi, 2, and the teeth, Phil. Trans., Vol. 

 XIX, No. 283, p. 673. Eel tenkee, Russ., I, 8, found in both hemispheres;— 

 R. flagellum, Sclm., 73. His R. nieuhowii, Will. App., X, Mookarrah tenkee, Russ., 

 VII, perhaps only differs from it in the loss of the spine. The teeth are like those 

 of the aquila ; — R. Jussieui, Cuv., has the middle teeth broader than they are long, 

 and in three rows. Jus. Ac. des Sc, 1721, pi. iv, f. 12. 



tt Myliobatis marginata, Geoff., Eg., Poiss., pi. xxv, f. 2.; — Raia quadrilobo, 

 Lesueur, Ac. Nat. Sc. Phil. 



