185 



OITHONA NANA, Giesbrecht. 



1892. Oithona nana, Giesbrecht, pp. 537 &549, pi. iv. fig. 8 ; pi. xxxiv. 

 figs. 10, 11, 20, 24, 26, 34, 35, 42 ; pi. xliv. figs. 2, 4, 6. 



Mr. G. P. Farran, who added this species to the British 

 fauna, from specimens found off the West of Ireland *, 

 has lately observed the same form at Plymouth. It has also 

 been obtained in one or two gatherings from the neighbour- 

 hood of Plymouth as well as in one from Whitsand Bay 

 collected by A. M. N. in August 1903. 



Oithonti. iiioia appears to have a fairly wide distribution in 

 the British seas, having been observed in plankton-samples 

 from the north-east of Scotland, as well as from the North 

 Sea between England and the Netherlands. 



OITHONA PLUMIFERA, Baird. 



1843. Oithona plumifera, Baird, Notes on British Entom., Zoologist, 



vol. i. pp. 11.13-197. 

 1892. Oithona plumifera, Giesbreoht, pp. 537 & 548, pi. iv. fig. 10 ; 



pi. xxxiv. tigs. 12, 13, 22, 25, 27, 28, 29, 32, 33, 44-47 : pi. xliv. 



figs. 1, 7, 12-15. 



Collected off the south coast of Cornwall; south of the 

 Scilly Islands and off North Cornwall in 1903 (Dr. L. II. 

 Gouyh). 



CYCLOPINA LITTORALIS (G. S. Brady). 



1872. Cyclops littnralis, Brady, Nat. Hist. Trans. Northuinb. and 



Durham, vol. iv. p. 429, pi. xvii. figs. 9-14. 

 1878. Cyclopina littoralis, Brady, vol. i. p. 92, pi. xv. figs. 1-9. 



This species occurred in gatherings from Salcombe, 1875, 

 and Starcross, 1880 ; also from Plymouth Sound, near 

 Chequer Buoy and in Cawsand Bay, and the vicinity of 

 Fowey, Cornwall, in May and August 1903. 



Dr. G. C. Bourne (vol. i. n. s. p. 150) also records Cyclo- 

 pina littoralis from Plymouth ; and Prof. G. S. Brady from 

 the Scilly Islands. 



CYCLOPINA GRACILIS, Claus. 



1863. Cyclopina gracilis, Claus, p. 104, pi. x. figs. 9-15. 

 1878. Cyclopina gracilis, Brady, vol. i. p. 93, pi. xxiv B. figs. 1-9 ; 

 vol. iii. pi. xci. figs. 10-11. 



Obtained at Salcombe in 1875, and at Exmouth between 



* Eeptort Sea and Inland Fisheries of Ireland, pt. ii. (publ. 190'">) 

 p. 117. 



