1905. Norman.— Crustacea Ostracoda. 



Bairdia hirsuta, G. S. Brady. 

 1880. Bairdia hirsuta, G. S. Brady, Report " Challenger " Exped. 



Ostracoda, p. 50, pi. viii., figs. 3 a-d. 

 Two specimens, which exactly agree with the above description and 

 figures, were taken by the ** Porcupine " Expedition of 1869, station 20, 

 lat 55*^ 11' N., long. \i° 31' W., to the west of Donegal, in 1,443 fathoms. 

 The " Challenger " specimens were dredged in the South Atlantic in 1,375 

 and 1,825 fathoms (A. M. N.). 

 B. subdeltoldea (? Miinster), T. R. Jones. 



1856. Bairdia mbdeltoidea, T. R. Jones, Mon. Tertiary Entom. Palceont. 



Soc, p. 52, pi. iv., 2, 2a. 

 1894. ? Bairdia decipietts, G. W. Muller, Fauna ti<nd Flora des Golfes 

 von Neapel — Ostracoden, p. 269, pi. xiii., fig. 29; pi. xiv., figs. 

 10, 21, 22. 



A single valve dredged in 1869 by the " Porcupine,'' station 19, lat. 

 56° 11' N., long. lo'' 56' W., in 1,366 fathoms, exactly agrees with the 

 figure of Prof. T. Rupert Jones, to which I have above referred. Of the 

 various species described by Brady and by Muller, it seems to come 

 nearest to B- decipiens, Muller. The Bairdia are a very difficult group. 

 The sexual differences would seem to be considerable, and the difficulty 

 is increased by the difference in form of the two valves, and of the 

 variation of outline at diff'erent periods of development. 



Genus 2. — IVlacrocyprls, G. O. Sars. 



Wlacrocypris minna (Baird). — Dredged by the "Porcupine," 1869, 

 station 3, in the ocean westof Bantry, lat. 51° 38' N., long. 12'' 50' W., 

 in 722 fathoms. The only other British locality is off" Shetland, where 

 it was dredged first by Mr. M'Andrew, and subsequently in two 

 different years by myself (A. M. N.). 



M. slllquosa, G. S. Brady. — "Porcupine," 1869, station 19, a broken 

 but unmistakable part of a valve, lat. 56° 11' N., long. 10° 56' W., that 

 is, to the west of Donegal, in 1,366 fathoms (A. M. N.). 



Genus 3.— Bythocyprls, G. S. Brady. 

 B. obtusata, G. O. Sars. -Off the Antrim coast, in 60 fathoms (S. M. M.). 



Fam. III.-DARWINULID^. 

 Genus i.— Darwin u la, Brady and Robertson. 



Darwlnula Stevenson i, Brady and Robertson.— Cregduff" Lough, 

 Roundstone (A. M. N.) ; toughs Inagh, Corrib, Agraffard, Arddery, 

 and Mesarahoge, in Connemara (B. & R.) 



