ON TWO NEW SPECIES OF CHIMERA. 11 



posteriorly than the latter ; each lobe of caudal nearly as high 

 as in mitsukurii ; no tail filament as in purpurascens ; pectoral 

 pointed and slightly falcate, its tip reaching far behind insertion 

 of ventral when depressed ; ventral truncate at the free margin, 

 its inner margin rounded, its insertion midway between tip of 

 head and dorsal notch. 



Lateral canal with fine sinuation which is not so apparent 

 as in Phantasma ; from the insertion of ventral backwards for 

 some distance, the sinuation grows somewhat more pronounced ; 

 maxillo-mandibular and jugular branches of the canal system arise 

 at the same point from the suborbital branch (PL II., figs. 8 

 and 10), or the latter directly from the suborbital at a point a 

 short distance behind the maxillo-mandibular (PI. II., fig. 2). 

 Six rods in the anterior lamina of upper jaw ; margin of the 

 lamina sinuate and slightly convex ; lateral rods behind the lamina 

 low, oblique, their tips directed medianly. Each lamina of lower 

 jaw with tW'O concavities more or less sinuate in the margin. 

 Peritoneum white ; wall of the digestive canal whitish. The 

 species has more a robust body than jordani. 



There exists no difference in external features between the 

 male and the female except in the sexual characters. Cephalic 

 organ on the snout in front of eye, its inner surface armed with 

 about seventy spinous denticles, its length 2i in eye length. 

 Clasper tripartite, its length from insertion 1| in head, its divi- 

 sion at a point about two thirds its length, its tip covered with 

 fine shagreen skin ; anterior ventral clasper with five spiny den- 

 ticles on the median side. 



Color in formalin dark brown, with lighter dot-like and 

 elongate spots, often indistinctly vermiculate by the spots fusing 

 together. This marking extends to head and to bases of pectoral 



