34 



DISCOVERY REPORTS 



Psammobatis lima (Poeppig). 



Raja lima, Poeppig, 1835, Reise Chili, 1, p. 148; Dumeril, 1865, Hist. Nat. Poiss., 1, p. 553; 



Philippi, 1892, An. Mus. Nac. Chile, 1. Zool., p. 2, pi. i, fig. 3; Delfin, 1901, Cat. Feces 



Chile, p. 23; Garman, 1913, Mem. Mus. Comp. Zool, xxxvi, p. 359; Fowler, 1927, Proc. 



Acad. N.S. Philad., lxxviii, p. 276. 

 ? Raia chilensis, Guichenot, 1848-9, in Gay, Hist. Chile, Zool. 11, p. 367. 

 ? Raja acanthostyla, Philippi, 1896, An. Univ. Chile, xcm, p. 38S. 1 

 Raja chilensis, Steindachner, 1898, Zool.Jahrb., Suppl. iv, p. 332, pi. xxi, fig. 15; Steindachner, 



1903, Zool. Jahrb., Suppl. vi, p. 211. 

 Raja steindachneri, Delfin, 1901, Cat. Peces Chile, p. 23; Fowler, 1910, Proc. Acad. N.S. 



Philad., lxii, p. 468; Evermann and Radcliffe, 1917, Bull. U.S. Nat. Mus., xcv, p. 14. 

 Raja burgeri, Delfin, 1902, Revist. Chi/., vi (4), p. 267, pi. xii. 



Disc broader than long, its width f to | of the total length; anterior margins scarcely 

 undulated ; outer angles rounded. Vent about equidistant from tip of snout and end 

 of tail or nearer to the latter. Snout with 

 a very small blunt projection, but no barbel- 

 like process, its length 5^ to 6^ in width of 

 disc ; interorbital width 3 to nearly 4 times 

 the longitudinal diameter of the eye, which 

 is much less than the width of the spiracle ; 

 length of eye + spiracle z\ to z\ in that 

 of snout. Internasal width about i| in 

 praeoral length of snout. Mouth nearly 

 straight or with a shallow emargination in 

 the upper jaw ; 40 to 44 rows of teeth in 

 upper jaw. Upper surface of disc mainly 

 smooth, but with areas of minute spinules 

 on anterior margins of pectoral fins, on the 

 snout, round the eyes, and along the back; 

 sometimes a patch of larger spinules on 

 the hinder part of each pectoral; some- 

 times an irregular median row of enlarged 

 spines from the nuchal region to the first 

 dorsal fin, sometimes 10 or 11 large spines 

 along the tail but none on the disc; some- 

 times one praeocular and one postocular 

 spine; lower surface with a narrow rough strip along the anterior margin of each 

 pectoral. More or less uniformly greyish or brownish above ; lower surface white, the 

 outer parts of the pectoral fins grey. 



Hab. Coasts of Chile and Peru. 



Described from 3 specimens, 1 male, 350 mm. long (width of disc 240 mm.) and 

 2 females, 400 and 450 mm. long (width of disc 300 and 320 mm.) from the Gulf of 



1 The type is a male, 460 mm. long (width of disc 250 mm.). 



Fig. 11. Psammobatis lima. Female. 



