R. COLLETT. fNo. 9. 



are not in good state of preservation, and the diagnosis might 

 be completed with better material). 



Diagn. Head rather broad; length of snout (from mouth) 

 less than the width across the gill openings. 



Scales forming a short radiated spine, its height not ex- 

 ceeding the base of the scale, and allowing the skin to be every- 

 where visible between the scales. 



Gill openings. The anterior wider than the posterior ones, 

 the width being about twice the diameter of the Spiracula. 



Colour blackish brown; membranous margins of the fins 

 bluish. 



Size large, total length reaching 728 mm . 



Hab. Faroe Channel; Faroe Bank. Depth 750 — 1200 metres. 

 Temperature at the bottom about -f 7° G. 



Pristiurus murinus, n. sp. 



Distinguished from P. melanostomus by its shorter anal, 

 ronnded pectorals, and by the colour being uniformly greyish, 

 without spots or rings. 



Diagn. (One young specimen). 



Head contained a little less than 4 3 A times in the total 

 length (4.69). 



First dorsal originating in front of the termination of the 

 ventral; 2 nd dorsal larger than l st . 



Anal short; its greatest height in the middle; length of 

 its base a little more than half that of the head, or about 

 equal to the distance from the pectoral to the front margin of 

 the eye. 



Pectorals faintly, but distinctly, rounded. 



Lateral line uninterrupted, with a bend downwards at the 

 root of the tail; the number of pores about 96. 



Colour uniformly gray, with a faint brownish tinge; the 

 upper margin of the fins black; nasal grooves and mouth blackish. 



