()5B PROCEEDINGS OF THE NATIONAL MUSEUM. voi..xxv]! 



jaws with flattened, pavement-like teeth; interorbital space concave 

 supraocular riclocs little elevated. Spiracles large, much greater thai 

 than eye. 



Body perfectly smooth, with many pores. 



Base of ventral about e<iual to snout; caudal rather broad, rounded 

 lower lobe )K\oinning- bcfoi-e upper, and width of fin :2f in snout; tai 

 depressed, its width at base 2 in snout, armed with a strong, (■ompr(\s.se(-| 

 spine with siM'rate edges. 



Color in alcohol, light brown above, pores with blackish borders 

 caudal tin, a blotch below each eye and upper surface of tail blackish> 

 low(>r surface^ whitish, except lower surface of tail, which is blackish- 

 edges of ventrals and of disk broadly edged with blackish or brownish- 

 Length, 14f inches. 



This description from a female from Tokyo. 



Southern riapan. generally conunon. Our specimens are from Tokyo; 

 Kobe. Hii'oshinia, Hakata, and W'akanoura. 



{fnsciis, brown, dusiiy.; 



40. DASYATIS Rafinesque. 

 STING RAYS. 



D(tsyfj(i(tix Klein, missus, 1742 (pre-Linnpean). 



Dasi/alis Rafinesque, Caratteri di Alcuni Nuovi Geiieri, 1810, p 

 =2}aslinaca). 



Uroxis Rafinesque, Indice d'lttiol. Sicil., 1810, p. 61 {ujus). 



Trigonobatus Blainville, Jour. Phys., 1816, p. 261 (vulgaris). 



Trygon Aoanson, in Cuvier, Regne Animal, 1st ed., 1817, p. 186 {pa»t'macn) .\ 



Hi^niifri/gon MvLhER and Henle, Mag. Nat. Hist., 1837, p. 90 {hennetti). 



///nKn/YHrfl MttLLER and Henle, Wiegmann's Archiv., 1837, p. 400 {iii(nmk)\ 



Pasliiiara Swainson, Classn. Anim., 1889, p. 319 {olivacea). 



Anacatdhus Ehrenbeeg, in Swainson, Classn. Anim., 1839, p. 319 (orbinil'iris): 



Fustinaca De Kay, N. Y. Fauna, Fishes, 1842, p. 373 (pastinaca). 



Dasibatig Garman, in Jordan and (iilbert, Synopsis, 1883, p. 65 [pastiimca; cor- 

 rected orthography). 



Disk oval, flat, with rounded angles. Tail very long and slender, 

 whip-like, without fln, but often with 1 or '2 vertical, membranous 

 folds; a strong serrated spine toward the base of the tail. Skin more 

 or less spinous or prickl}^, rareh' smooth. Teeth small, paved; a 

 few papillas usually present in the mouth behind the lower jaw. 

 Species a})()ut /'>(». Sting- rays of large size, abundant in warm seas.i 

 Many of the spinous species are nearly or quite smooth when younJ,^ 

 becoming rough with age. Some of the species are yet imperfectly 

 known and unich of the synonymy is uncertain. 



{6(X()i'^, shaggy or rough; (iang^ a skate; abbreviated from Jhii<y- 

 hafls.) 



(t. Dasyatis: Tail with cutaneous folds. 

 //. Siioiit not long and jiroduced. 



