110 MR. T. SCOTT ON ENTOMOSTRACA 



Section II. P(ECIL0ST03fA, Thorell. 



Family COEYCiEID^, Dana. 



Genus Cortc^eus, Dana. 



Corycmiis, Dana, Proc. Acad. Nat. Sci. Philadelpliia, 1845. 



Corijc<eus, Brady, Report ou the Copepoda of the ' Challenger ' Expedition, 1883. 



CoKTC^us VARius, Dana. 



1852. Corycaus varius, Dana, Crust. U.S. Expl. Exped. p. 1211, pi. Ixxxv. figs. 4 a-i. 



1856. Corycaus styliferus, Lubbock, Trans. Entom. Soc. iv. N. S. pi. v. figs. 7, 8. 



1863. Corycatts furcifer, Glaus, Die freilebenden Copep. p. 157, pi. xxiv. figs. 7-12. 



1883. CoryccBus varius, Brady, Report Chall. Copepoda, p. Ill, pi. lii. figs. 1-14. 



Habitat. Station 2, 25 fathoms, January 1st (night collection). Station 9, 50 fathoms, 

 January 10th (day collection). Lat. 1° 56' 5" N., long. 5° 55' 5" E., 460 fathoms, 

 January 22n(l (day collection). Station 18, surface, February 3rd (day collection). 

 Bananah Creek, Congo River, surface, February 7th (day collection), »&c. 



This CoryccEus was obsei'ved in 110 tow-nettings, comprising 48 surface and 62 uuder- 



surface gatherings. The under-surface gatherings ranged in depth from 2 to 400 



fathoms. 23 of the surface and 44 of the under-surface tow-nettings were day collections, 



while 25 surface and 18 under-surface were uight collections, as shown by the annexed 



formula : — 



r 23 day collections. 



... ^_r48 surface { 25 night ditto. 



Tow-nettmgs 110< > ,, , =' ,.^^ 



162 under-surface 1^^ ^^^^ ^^^tto. 

 I- 18 night ditto. 



This was the most common species of Corycceus in the collection, both as regards its 

 general distribution throughout the area examined and its frequency in the tow-nettings 

 in which it occurred. 



Corycaus pellucidus, Dana. 



1852. Cory cceus pellucidus, Dana, Crust. U.S. Expl. Exped. p. 1224, pi. Ixxxvi. fig. G. 



1863. Coryceeus rostratus, Claus, Die freilebenden Copepoden, p. 157, pi. xxviii. fig. 5. 



1883. Cory ccEus pellucidus, Brady, Report Chall. Copep. p. 112, pi. lii. figs. 15-19. 



Habitat. Station 2, 50 fathoms, January 1st (night collection). Station 9, surface, 

 25 and 50 fathoms, January 10th (day collections). Lagoon, Sao Thome Island, surface, 

 January 27th (one day and one niglit collection). Station 18, surAice, February 3rd 

 (day collection). Lat. 7° 38' S., long. 12" 3' 3" E., surface, February 9th (night 

 collection), &c. 



This Coryceeus, which was a moderately common species in the collection, occurred 



