COLLECTED AT PLYMOUTH IN 188S-89. 149 



8. PONTELLA WOLLASTONI, LuhhocJc, 



PONXELLA HELGOLANDICA, Claus. Freileb. Copepod., p. 208, Taf. iii, figs. 5—7; 



xxxvi, figs. 1 — 15 ; xxxvii, fig. 7. 



— WoiLASTONl, Brady. Monogr. Brit. Copep., i, p. 73, pi. x a. 



— — Canu. Copep. libr. mar. du Boulounais, Bull. Sci. de la 



France et de la Belg., iii ser., 1 ann., p. 100. 



— — J. C, Thompson. Some Copep. new to Great Brit., Proc. 



Liv. BioL Soc, i, p. 37. 



I have only found this species twice, on August 31st, 1888, and 

 on October 23rd, 1888, near the Eddystone Lighthouse, in small 

 numbers in each instance. According to Thompson it is not uncommon 

 in Liverpool Bay, and it is one of the commonest species at 

 Wimereux (Canu). 



9. Anomalocera Patersonii, Tem^leton. 



Ieen^us Pateesonii, Claus. Freileb. Copep., p. 206, Taf. ii, fig. 1 ; Taf. xxxvii, 



figs. 1 — 6. 

 Anomaloceea Pateesonii, Brady. Monogr. Brit. Copep , i, p. 75, pi. xi, figs. 



1—14; pi. X, figs. 13,14. 



This species was abundant at Plymouth in the autumn and late 

 summer but was absent from winter gatherings. I found a few 

 specimens in the contents of the surface net on May 19th, 1889. 

 Sometimes it occurs in immense profusion in the Channel. Mr. 

 Matthias Dunn has sent me a large number of Copepods, dipped 

 with a bucket from Mevagissey Harbour. They consisted almost 

 exclusively of A. Patersonii. In the specimens taken on May 19th 

 I noticed that the upaired eye of the male was nearly half as large 

 again as that of the female. 



Family— GYGIjOVIDM. 

 1. OiTHONA spiNiROSTRis, Claus. PI. XI, figs. 7 and 8. 



OiTHONA HELGOLANDICA, Claus. Freileb. Copep., p. 105, Taf. xi, figs. 4 — 9. 



— SPINIEOSTEIS, Claus. Ibid., p. 105, Taf. xi, figs. 10—12. 



— SPiNiFEONS, Brady. Monogi-. Brit. Copep., i, p. 91, pi. xiv, fig. 19 j 



pi. xxiv a. 



— SPINIEOSTEIS, Giesbrecht. Freileb. Copep. der Kieler Foehrde, p. 139. 



— — I. C. Thompson. Proc. Liv. Biol. Soc, ii, pp. 1, 2. 



This species is so rare as to be practically absent from Plymouth 

 seas in the late summer and autumn, but it appears in great profu- 

 sion in February, March, and April. Giesbrecht states that the 

 same is the case at Kiel. According to the same author the diiferent 



