8 Dr. T. Scott on some 



the inner distal angle produced into a strong spine that 

 reaches beyond the end of the third joint ; this joint is small 

 and is provided with four short .setre on its inner margin and 

 two at the lower end of the outer margin, and the terminal 

 spine is long and tolerably stout, and fringed with minute 

 bristles along its inner edge (tig. 4). 



Fam. Calanidae. 



Genus Drepanopus, G. S. Brady, 1883. 



Drejianopus jjectinatus, G. S. Eradv. 

 (PI. II. figs. 10, 11.) 



A number of specimens of this Drepanojms occurred in a 

 tow-net gathering collected in the vicinity of the Islands 

 on November 1909. Both males and females were fairly 

 numerous, and several of the latter carried ovisacs. The 

 same species was also present in another gathering collected 

 a few days afterwards 3 miles south-eastward of Sj)eeclwell 

 Island ; and specimens also occurred in a third gathering in 

 ■which Mere numerous larval decapods. One or two of the 

 larger females with ovisacs measured about 2^ mm. in length. 

 A few small and apparently adult specimens occurred, 

 which at first were considered as probal)ly belonging to 

 ,D. forcipatus, Giesb., but on a careful examination of these 

 no anatomical dilTerences of sufficient importance to separate 

 them were revealed. 



Fam. Acartiidae. 



Genus Acartia, Dana, 1846. 



Acarlia tonsa, Dana. 



Tiiis was the only Acdrtia observed in the marine tow- 

 nct sani[)lcs. It Mas toleiably frequent in the gathering 

 containing the larval decapods aheatly referred to under 

 Jjrcpaiiopus. 



C V c L o r o 1 n A . 



Fam. Oitlionidae. 



Genus OrmoNA, Baird, 1843. 



Oilhona heI(jolandica, Clans. (PI. I. fig. 12.) 



'\f<Ci^,. Oithona helqnlavdicn, Glaus, iJie Frei Lebendeu Copepoden, 



1). lOr), pi. xi. lip-. 10-12. 

 IWjiy Oilhoun si)iii/is, Dnup, Die ropopodcn-Fniina von Nizza. p, 14. 



