DISTRIBUTION AND GENERAL NOTES ON THE SPECIES 271 



south Of the entrance to Magellan Straits, well offshore near the shelf edge. None was found to the 

 south of the Falkland Islands. Fig. 16 shows the regional distribution, while the depth data are sum- 

 marized along with those of all the elasmobranchs in Fig. 18 and Table 9. 



.... . A, 0/ „ai.._is abnormal. It seems to be due to a tendency 



The sex ratio observed m th,s spec.es-67 % ""'"^^ '^ ."„„„„ of the sesregated males than 



towards unisexual shoahng. and mere *-« ' ^kT w''„™fitTs rfem* sho^^^^^^^ -= --"y 



females. Among European rays in wh.ch th.s hab.t .s ^^°^"^l'™Zr^tciy rieh hauls of this 



