40S THE PLAGIOSTOMTA. 



Brown with more or less scattered rounded darker spots; white below, with 

 darker edges. 

 New Ireland. 



Urolophus cruciatus. 



Raia crudata LAC^pfeoE, 1804, Ann. mus., 4, p. 201, 210, pi. 55, f. 2. 



Leiobatus crucialus Blainv., 1816, Bull. Soc. philom., p. 121. 



Urolophus cruciatus Muller & Henle, 1837, Sitzb. Akad. wiss. Berlin, p. 117; 1838, Charlesworth's 



mag., 2, p. 90; Dumeril, 1865, Elasni., p. 626; Gunth., 1870, Cat. fishes Brit, mu?., 8, p. 485; 



Waite, 1899, Mem. Austr. mus., 4, p. 43. 

 Urolophus auraniiacus MiJLLER & Henle, 1841, Plagios., p. 173, pi. 56, f. 2. 

 Urolophus ephippiatus Richardson, 1848, Erebus & Terror, Fish, p. 35, pi. 24; Dumi^ril, 1865, Elasm., 



p. 627. 



Disk subquadrangular, blunt forward, width greater than length of body, 

 widest in front of the shoulder girdle, narrowing back toward the ventrals, tip 

 of snout slightly produced, outer angles and margins broadly and hind angles 

 sharply rounded, anterior margins sinuous, indented opposite the eye. Body 

 rather thick, head moderately prominent. Mouth small, curved, width less than 

 half the distance from tip of snout, with three papillae at the bottom — median 

 bifurcate. Teeth tessellate, lozenge-shaped, broader than long, with a slight 

 transverse excavation on the crown. On the specimen in hand, a male, there 

 are four rows of the flattened teeth at each side of seventeen rows each tooth of 

 which is provided with a long sharp longitudinally grooved cusp. Eye of 

 moderate size, spiracle small. Anterior rays of ventrals little if any longer than 

 posterior. Tail, from the pores, two thirds as long as the body, caudal fins of 

 medium depth, end rounded, spine inserted about mid length. Skin smooth. 



Brown, rusty or yellowish, with a vertebral band of darker crossed by about 

 three bands in front of the shoulder girdle, behind which it is paralleled by two 

 to four longitudinal bands over the abdomen. The specimen shows the brown 

 of the outer portions of the pectorals to be separated from that of the back by a 

 curved band of light color from opposite the eyes to the middle of the hind border 

 of the pectorals; it also has dark blotches in front of the eyes. Lower surfaces 

 whitish with broad brown outer margins on pectorals and ventrals. Colors 

 evidently varying much in different individuals. 



Length 12.5, tail from the pores 5, and greatest width 8.1 inches; from 

 Hobart, Tasmania. 



Australian seas. 



