I. '08. 29 



I have examined specimens taken at the following localities 

 south of the British and Irish area : — 

 Til or. 



Sy'G/'OG.— 49° 17' N., 14° 3' W., soundings 2;o^ fathoms. Mid- 

 water trawl, 0-164 fathoms — One, 22 mm. 



9/6/'0(>._49° 23' N., 12° 13' W., 665 fathoms. Trawl— One, 

 48 mm. 



Irish distrihution.—Sergestcs rohustus has been found of! 

 the west coast of Ireland on the following occasions : — 



Hciga. 



S.R. 139— ll/8/'04.— 55° 0' N., 10° 48' W., soundings lyboo 

 fathoms Triangle net, 0-1,000 fathoms. Surface tempera- 

 ture, 14-6° C, at 800 fathoms 7 -0° C— Two (Mastigoims).' 



S.R. 164.— 3/ll/'04.— 52° 6' N., 12° 0' 30" W., soundings 375 

 fathoms. Triangle net, 0-350 fathoms. Surface temperature 

 13-2° C, at 350 fathoms 9-78° C, salinity 35-70°/oo— 

 One, larval.^ 



S.R.282.— 18/11 /'05.— 54° 59' N., 10° 53' W., soundings T^xTo 

 fathoms. Triangle net, 0-700 fathoms. Surface temperature 

 10-6° C. , at 700 fathoms 9 0° C— One, 80 mm. 



S.R.299.— 5/2/'06.— 50° 13' 30" N., 11° 16' W., soundings 500 

 fathoms. Triangle net, 0-400 fathoms. Surface temperature 

 10-8° C. , at 370 fathoms 10-8° C— Two, 35 and 87 mm. 



S.R.397.— 2/2/'07.— 51° 46' N., 12° 5' W., 549-646 fathoms. 

 Trawl Temperature at 500 fathoms 8-71° C, salinity 

 35 •57°/oo — Two, 46 and 69 mm., and fragments in stomach 

 of a Ray. 



S.R.481.— 29/8/'07.— 50° 59' N., 11° 52' W., soundings 1,064 

 fathoms. Midwater trawl, 0-900 fathoms — Three, 19-2 1mm. 



S.R.494— 8/9/'07.— 51° 59' N., 12° 32' W., 550-570 fathoms. 

 Trawl. Temperature at 500 fathoms, 8-8° C, salinity 

 35-30°/oo— One, 68 mm. 



S.R. 503— 12/9 /'07.— 50° 42' N., 11° 26'W., soundings 990 fathoms. 

 Triangle net, 0-80 fathoms. Surface temperature 16-2° C, 

 at 80 fathoms about 10 -0° C— One, 39 mm. 



Oceana (Hansen, 1903 (2) and 1908)— 



52° 4' 30" N., 12° 27' W. Soundings 620 fathoms.— One, 

 24 mm. 



Vertical range. — S. rohustus was on one occasion (S.E. 

 397) found in the stomach of a species of Ray, and this record 

 furnishes conclusive evidence that the species sometimes occurs 

 actually on the bottom. Beyond this isolated fact, little 

 definite information of the bathymetric range can be given. 

 The species has been caught in nets lowered to the depth of 

 2,574 fathoms (Smith), while a half -grown specimen was 

 found at only 80 fathoms, or less, below the surface (S.R. 503) 

 in soundings of nearly 1,000 fathoms. The shallowest water 

 in which the species has been found is 372 fathoms (Smith, 

 1882). 



1 Named by Dr. H. J. Hansen. 



