RAJIDAE 13 



b. Small spines mainly confined to anterior parts of disc and middle of back; 

 eye + spiracle 2 to 2§ in length of snout. 



(i) Ocular spines present; 26 to 30 median spines on back; 2 (or 3) pairs of 

 scapular spines; coloration mottled, each pectoral with a large double ocellus- 

 like spot magellanica. 



(ii) No ocular spines; 42 median spines on back; one pair of scapular spines; 



coloration nearly uniformly greyish brown multispinis. 



B. No enlarged scapular spines; spines scattered over disc smaller and closer together; no 

 ocular spines. 



1. Internasal width z\ to 2| in praeoral length of snout; eye + spiracle 25 to 3 1 in 

 length of snout scaphiops. 



2. Internasal width twice or less than twice (occasionally 2J) in praeoral length of 

 snout; eye + spiracle if to about 3 in length of snout. 



a. Disc with small, rounded, white spots; median spines on tail very strong; median 

 series on back continuous, or 2 or 3 nuchal spines separated from remainder; 

 mixopterygia rather long, slender, scarcely expanded distally, without projecting 

 process albomaculata. 



b. Disc without small, round, white spots; median spines less strong; mixopterygia 

 (in brachyurops) rather shorter, expanded distally, with a small projecting process, 

 (i) Vent (except in young) nearer to end of tail than to tip of snout; tail uniformly 



white below or with a few greyish spots; 20 to 34 rows of teeth in upper 

 jaw ... ... ... ... ■•• ••• ••• ■•• ••• brachyurops. 



(ii) Vent nearer to tip of snout than to end of tail ; tail with parts of the lower 

 surface stained with greyish brown ; 30 to 36 rows of teeth in upper jaw griseocauda. 



Raja flavirostris, Philippi. 



?? Raia chilensis, Guichenot, 1848-9, in Gay, Hist. Chile, Zool. 11, p. 367; Philippi, 1892, 



An. Mus. Nac. Chile, 1, Zool., p. 1. 

 Raja flavirostris, Philippi, 1892, t.c, p. 3, pi. i, fig. 2; Garman, 1913, Mem. Mus. Comp. Zool., 



xxxvi, p. 361; Fowler, 1927, Proc. Acad. N.S. Philad., lxxviii, p. 277. 

 Raja oxyptera, Philippi, 1892, t.c, p. 4, pi. ii, fig. 1 ; Lonnberg, 1907, Hamb. Magalh. Sammelr., 



Fische, p. 6. 

 Raja latastei, Delfin, 1902, Revist. Chil., vi (4), p. 264, pi. xi. 

 Raia stabuliforis, Marini, 1928, Physis, ix, p. 137, fig. 3. 

 Raia brevicaudata, Marini, 1933, Physis, xi, p. 329. 

 St. WS 77. 12. iii. 27. 51° 01' S, 66° 31' 30" W. Commercial otter trawl, 110-113 m.: 1 female 

 specimen, 480 mm. (width of disc 400 mm.). 



St. WS 79. 14. iii. 27. 51 01' 30" S, 64° 59' 30" W. Commercial otter trawl, 132-131 m.: 1 male 

 specimen, 365 mm. (width of disc 320 mm.), 1 female specimen, 345 mm. (width of disc 285 mm.). 

 St. WS 95. 17. iv. 27. 48° 58' 15" S, 64 45' W. Commercial otter trawl, 109-108 m.: 1 male 

 specimen, 285 mm. (width of disc 225 mm.). 



St. WS 214. 31.V. 28. 48° 25' S, 60 40' W. Commercial otter trawl, 208-219 m.: 1 female 

 specimen, 310 mm. (width of disc 258 mm.). 



St. WS 236. 6. vii. 28. 46 55' S, 6o°4o'W. Commercial otter trawl, 272-300 m.: 1 male 

 specimen, 610 mm. (width of disc 490 mm.). 



St. WS763. 16. x. 31. 44 14' S, 63°28'W. Commercial otter trawl, 87-82 m.: 1 male 

 specimen, 180 mm. (width of disc 140 mm.). 



St. WS 765. 17. x. 31. 45 07' S, 6o° 28' 15" W. Commercial otter trawl, 113-118 m.: 1 male 

 specimen, 360 mm. (width of disc 280 mm.). 



