RAJIDAE I7 



end of the tail, the teeth are somewhat smaller and more numerous (38 to 46 rows), 

 and the spines on the disc less well developed. Further, in R. radiata the two dorsal 

 fins are usually contiguous or continuous, only occasionally being separated by a spine, 

 and there are generally only two scapular spines. 



Raja macloviana, sp.n. 



Raia magellanica (non Steindachner), Regan, 1913, Trans. R. Soc. Edinb., xux, p. 231, pi. i. 



St. WS So. 14. iii. 27. 50 57' S, 63 37' 30" W. Commercial otter trawl, 1 52-1 51 m.: 1 female 

 specimen, 345 mm. (width of disc 220 mm.). 



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

 specimen, 205 mm. (width of disc 135 mm.). 



St. WS 217. 1. vi. 28. 46 28' S, 6o° 18' W. Commercial otter trawl, 146 m. : 2 female specimens, 

 390, 420 mm. (width of disc 250, 300 mm.). 



St. WS218. 2. vi. 28. 45°45'S, 59° 35' W. Commercial otter trawl, 311-247 m.: 1 male 

 specimen, 350 mm. (width of disc 240 mm.), 1 female, 400 mm. (width of disc 270 mm.). 



St. WS 225. 9. vi. 28. 50 20' S, 62 30' W. Commercial otter trawl, i62-i6im.: 3 male 

 specimens, 270-425 mm. (width of disc 180-285 mm.), 1 1 female, 280 mm. (width of disc 190 mm.). 



St. WS 817. 14. i. 32. 52 23' S, 64 19' W. Commercial otter trawl, 191-238 m.: 2 male 

 specimens, 230, 330 mm. (width of disc 150, 225 mm.), 1 female, 340 mm. (width of disc 230 mm.). 



Disc a little broader than long, its width § to § of the total length ; anterior margins 

 scarcely undulated, not emarginate; outer angles rounded. Vent more or less equi- 

 distant from tip of snout and end of tail. Snout not projecting, its length about \ to 

 more than { width of disc ; interorbital width equal to or less than longitudinal diameter 

 of eye ; length of eye + spiracle if to if in that of snout. Opening of spiracle extending 

 forward below eye. Internasal width more than \ praeoral length of snout. Teeth of 

 moderate size, with flattened crowns; 26 to 36 rows in upper jaw, which has a shallow 

 median notch. Upper surface of disc more or less covered with small scattered spines, 

 which are more numerous and closer together at its anterior margins and along middle 

 of back; one praeocular and one postocular spine; a pair of scapular spines; a median 

 series of 25 to 29 spines extending from the nuchal region to the first dorsal fin; 

 irregular rows of much smaller spines at edges of tail. Mature males with 2 or 3 irregular 

 series of alar spines. Lower surface quite smooth. Dorsal fins close to end of tail, 

 usually separated by a spine. Brownish, usually with some indistinct scattered round 

 white spots, margined with dark brown or blackish ; a pair of larger and more distinct 

 white spots, ringed with dark brown, on posterior parts of pectoral bases; hinder 

 margins of pectorals and edges of pelvics with a white border in the young; lower 

 surface uniformly yellow or white. 



Hab. Patagonian-Falklands region. 



This species appears to be most nearly related to R. murrayi, Gunther, from Kerguelen, 

 but has a blunter snout, a somewhat shorter and stouter tail, more numerous and 

 smaller teeth, and somewhat different coloration. I have examined the specimen from 



1 The largest specimen has been selected as the holotype. 



