CRUSTACEA OF NORTHL'MBERLAXI) ANt) DURHAM 



1869. Afchin/s affiiiis, G. O. Sars, Nye Dybvands- 

 crustaceer fra Lofoten. Chr. Vid. Selsk. Forh., p. 163 

 (p. 19 separate copy). 

 1897. Astacilla affinis, G. O. Sars, Crust. Norway, vol. ii., 

 Isopoda, p. 90., pi. xxxvii., fig. 2. 

 Dr. Henderson has recorded the occurrence of this species 

 in the Firth of Forth, which is the locality whence the types of 

 Goodsir came ; he writes, " N.E. of Inchkeith in the Firth of 

 Forth, April, 1884, attached to spines of Echinus esculentus. 

 Colour pale white, transparent, the distal end of joints of 

 antenna banded with green ; green bands (faint) on anterior 

 segments of body." This observation is interesting in con- 

 nection with the fact that this Astacilla was taken in consider- 

 able numbers near the Fame Islands in 1863 clinging to the 

 test of Strongylocentrotus dnvhachiensis (AI tiller). The year 

 previously this species had been taken ofTTynemouth (A.M.N.) 



N. 



Arcturella DiLAiATA G. O. Sars. 



Souter Bank in 39 fathoms, and 32 miles E. of Alnmonth in 

 40 fathoms (G. S. B.) N.D. 



Section IV.— ASELT.OTA 



Fam. I.— ASELLID.E 



Asfxlus aquaticus (Linne'). 



In lakes and streams. N.D. 



Fam. 2.— J an I rid. E 



Janira maculosa Leach. 



In the coralline zone, not rare. N.D. 



J/ERa marina (Fabricius). 



This is y^cera albifrons of Bate and Wcstwood. It is 

 common under stones between tidemarks. 



N.D. 

 Fam. 3.— MIWNID.E 



Munna limicoi.a G. O. Sars. 



Off Seaham Harbour (G. H.) ; 2.J miles otT Souter Point in 

 21 fathoms (G. S. B.) ; Bate and Westwood (vol. iv., p. 328) 



41 



