288 PEARLED RAY. 



kind of denticulated cartilage : snout and upper 

 part of the body without spines : on the tail, which 

 is very slender, one or more long denticulated 

 spines. This species is said by Gepede to be caught 

 about the coasts of Cherburgh, and sometimes in 

 the mouth of the Seine. It seems to approach the 

 nearest to the Pastinaca marina altera of Fabius 

 Columna, represented on Plate C. 1. f. 3. of Wil- 

 lughby's Ichthyology. It is said by Columna to be 

 called Altavela by the Neapolitans, and seems to 

 have been considered by the generahty of succeed- 

 ing ichthyologists as a variety of the R, Pastinaca, 



PEARLED RAY. 



Raja Sephen. K. fusco-cinerea, suhtus albida^ corpore supra 

 ivherculato, tuherculis dorsalihus tribus mediis majoribus. 



Cinereous-brown Ray, with the body tuberculated above^ with 

 the three middle tubercles larger than the rest. 



Raja Sephen. K. corpore suborbiculato y cauda duplo longiore 

 subtus alata, &fC. Lin. Gmel. Forsk. Arab. p. ly. 



Shape subrhomboid; the upper part of the body, 

 measured from the tips of the pectoral fins, w hich 

 are obtuse, forming a half-rhomb : the lower part, 

 from the tips of the pectoral fins to the tail, form- 

 ing a half-circle : snout small and slightly pointed : 

 ventral fins rather small and rounded : tail more 

 than twice the length of the body, gradually taper- 

 ing to a fine point, furnished beneath the middle 

 part with a shallow fin running to a considerable 

 distance, and above with a strong and sharp spine, 

 as in the Sting Ray and many others, and some- 



