296 DR THOMAS SCOTT ON THE 



the one and the other, as in Bradya typica ; the inner lobe of the basal joint is 

 furnished with two long, slender setae — the inner being rather the longer one ; the 

 second joint is small, and carries three setae at its apex ; the two inner setae are 

 elongated and subequal, but the other is short. The appendicular bristle is slender, and 

 scarcely reaches to the end of the short apical seta. Caudal rami very short. 



Habitat. — Scotia Bay, South Orkneys; collected in June 1903: Station 325, 

 ej0° 43' 42" S., 44° 38' 33" W. Apparently rare. 



Remarks.— The form described above is nearly allied to Bradya typica, Boeck, 

 but differs in the armature of the last pair of thoracic legs, and in one or two other 

 structural details. 



Genus Microsetella, Brady & Robertson, 1873. 



Microsetella noi^vegica (Boeck). 

 1864, Setella jtorveyiai, Boeck, Sehkah. Forliandl. Christiania (1864), p. 281. 



This small Harpactid was observed in gatherings from only a few stations, viz. 

 37, 62, 93, 94, and 106, 7° 50' N., 25° 31' W., to 39° 01' S., 53° 40' W. 



Microsetella rosea (Dana). 



1847, Harpacticus roseus, Dana, Proe. Amer. Acad., Boston, vol. i. p. 153. 



This species appeared to be rather more common than the last, being present in 

 gatherings from about fifteen stations, and with a distribution extending fi'om Stations 

 7, 10, and 12 in the North Atlantic, 26° 23' N., 20° 20' W., to 22° 19' N., 22° 07' W., 

 to Station 88 in 26° 25' S., 42° 00' W. 



Fam. Macrosetellid^. 

 Macrosetclla, A. Scott, 1909. 



Syn. Selella, Dana (hut this name is preoccuiiied). 



Macrosetclla gracilis (Dana). 

 1846, Setella (jrwilis, Dana, Amer. Journ. Sci. (2), vol. i. p. 227. 



This species occurred in gatherings from twenty-five stations, and appeared to be 

 distributed over nearly the whole area traversed by the Scotia. The northerly Stations 

 comprised 7, 10, 12, 14 in the North Atlantic, while Stations 93, 94, and 95 were the 

 most southerly ; 26° 23' N., 20° 20' W., to 32° 15' S., 47° 30' W. 



Genus Miracia, Dana. 



Miracia efferata, Dana, 1846. 

 1846, Miracia efferata, Dana, Amer. Journ. Sci. (2), vol. i. p. 230. 



This was also observed in 2;atherings from twentv-five stations, and its distribution 

 was somewhat similar to that of Setella. 



(ROY. SOC. EDIN. TRANS., VOL. XLVIII., 542.) 



