Yol.  49.] 
OSTRACODA  PROM  WESTMORELAND. 
289 
6.  A.  Krause.  Zeitschr.  Deutsch.  geol.  Gesellsch.  vol.  xli.  1889,  pp. 
1-26,  pis.  i.,  ii. ;  ibid.  vol.  xliii.  1891,  pp.  488-521,  pis.  xxix.- 
xxxiii. ;  ibid.  vol.  xliv.  1892,  pp.  883-399,  pis.  xxi.,  xxii. 
7.  T.  R.  Jones.  Ann.  Mag.  Nat.  Hist.  ser.  6,  vol.  i.  1888, 
pp.  395-411,  pis.  xxi.,  xxii.;  ibid.  vol.  iii.  1889,  pp.  373-387, 
pis.  xvi.,  xvii.  Besides  other  memoirs,  several  of  them  written 
in  conjunction  with  Dr.  Holi  and  Mr.  Kirkby,  in  which 
numerous  Palaeozoic  Ostracodous  forms,  more  or  less  closely 
allied,  are  figured  and  described,  either  as  biological  or  local 
groups. 
8.  E.  0.  TJlrich.  Journ.  Cincinnati  Soc.  Nat.  Hist.  vol.  xiii. 
pt.  i.  1890,  pp.  104—137,  and  pt.  ii.  1891,  pp.  173-211,  pis. 
vii.-xvii. ;  4  American  Geologist/  vol.  x.  1892,  pp.  263-270, 
pi.  ix. 
§3.  References  to  former  Notes  on  the  Lower-Paleozoic 
OsTRACODA  OF  THE  LAKE  DISTRICT. 
1.  “On  the  Lower-Silurian  Rocks  of  the  South-east  of  Cumberland 
and  the  North-east  of  Westmoreland.”  By  Prof.  R.  Harkness, 
E.R.S.  Quart.  Journ.  Geol.  Soc.  vol.  xxi.  (1865)  p.  235  etseqq. 
At  p.  243  the  “  dark-coloured  fossiliferous  flaggy  rocks ”  of 
the  Dufton  Syke  (similar  to  those  of  Pusgill)  are  stated  to  have 
yielded  Beyrichia  (now  Primitia )  strangulata,  Salter,  among  other 
fossils.  This  fossil  is  also  alluded  to,  in  a  footnote,  as  having  been 
found  by  Dr.  Henry  Nicholson  in  the  higher  part  of  Pusgill. 
The  limestone  near  Keisley  is  mentioned  at  the  same  page  as 
containing  “  Cythere  phaseolus ,”  M4Coy  (not  Hisinger).  This  was 
referred  to  Primitia  Maccoyii  (Salter)  in  the  Ann.  Mag.  Nat.  Hist. 
July  1868,  p.  55,  and  is  now  regarded  as  Aparchites. 
2.  “  On  the  Strata  and  their  Fossil  Contents  between  the  Borrowdale 
Series  of  the  North  of  England  and  the  Coniston  Flags.”  By 
Profs.  Harkness  and  Nicholson.  Quart.  Journ.  Geol.  Soc. 
vol.  xxxiii.  (1877)  pp.  461  et  seqq. 
From  the  “  Dufton  Shales  ”  are  noted,  at  p.  463  : — 
“  Beyrichia  Wilckensiana ,  Jones.  Abundant  in  Pusgill  in  the 
Discina-corona  bed,  and  also  in  the  ashy  beds  in  Swindale.”  This 
is  probably  one  knob  or  tubercle  of  Ulrichia ,  or  of  AEchmina  obtusa, 
mistaken  for  the  central  lobe  of  the  above-mentioned  Beyrichia  in 
a  partly  embedded  condition. 
“  Primitia  semicircular  is ,  Jones  &  Holl.  In  ashy  beds,  Swindale.” 
Probably  either  a  short  form  of  Primitia  minuta  or  of  Aparchites 
subovatus. 
From  the  “  Coniston  Limestone  ”  (“  Limestone  of  Keisley,  near 
Dufton  ”),  p.  468  : — 
Beyrichia  impendens ,  Jones,  and  Primitia  protent  a,  Jones.  Apple- 
treeworth  Beck.  These  specimens  have  been  lost  sight  of. 
From  the  “  Graptolitic  Mudstones,”  p.  473  : — 
Biscinocaris,  near  D.  Browniana ,  H.  Woodward.  “  Not  un¬ 
common  in  the  Mudstones  at  Skelgill  and  Poolwyke.” 
