Fishes of the Western North Atlantic 



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thorns, snout anterior to the orbits about 3.5 times as long as the distance between 

 the orbits (not more than 2 times in B. spinosa\ first and second dorsal fins separated 

 by a definite (though short) interspace with one or two thorns, and in having the upper 

 surface of its disc closely freckled with small dark brown dots (not freckled on B. 

 spina so). 



Figure 72. Breviraja yucatanensis, juvenile male, 215 mm long, type, from 

 northeast slope of Yucatan (U. S. Nat. Mus., No. 148273). J Dorsal view to 

 show thorns and prickles. B Same to show color pattern, without thorns and 

 prickles. C Pelvic fins, ventral view. D Ventral view of midanterior part of 

 head. E Part of same to show fringed nasal curtain and margin of nostril. 

 A-D, about 0.9 X; E about 2.7 X. 



Description. Proportional dimensions in per cent of total length. Male, 2 1 5 mm 

 long, from Lat. 20° 19' N, Long. 87°04' W (U. S. Nat. Mus., type. No. 148273)- 

 Disc: extreme breadth 55.0; length 45.2. 

 Snout length: in front of orbits 9.8; in front of mouth 11.6. 

 Orbits: horizontal diameter 4.9; distance between 2.8. 



