P. T. OLEVE, PLANKTON COLLEOTED BY MR. THORILD WULFF. Ö<ö 



with 3 spiniferous S, 2 as long as the joint, 1 half as long. 

 L4 with 1 short spiniferous and 1 long not spiniferous 8. 

 — B2 with finely denticulate interiör margin, 3 times longer 

 than broad, distally with 5 S; SI and 2 short plumose, SS 

 and S5 twice as long, also plumose, S4 short and naked. Ri 1 

 V/2 times as long as broad with 2 S, Ri 2 with 3 S; Bi 3 — 4 

 with 2 S. — Se two. 



Natatory legs of the 1 — 4 pairs. Bl of all pairs with a 

 short plumose Si. Re and Ri of all pairs 3-jointed. Propor- 



Se of the 1st p. 1, 1, 2, long, narrow, inside finely serrate. 

 Se of 2 — 4 p. 1, 1, 3 with smooth margins. Exteriör margin 

 of the legs hairy. — St straight, finely serrate (teeth about 

 7 in 0,01 millim). Si of the 1st. p. 1, 1, 4 and of the 2 — 4th 

 p. 1, 1, 5. — Ri reach in the 1st and 3d p nearly to the distal 

 margin of Re 2, in the 2 and 4th p. slightly beyond it. — 

 Si of the 1st p. 0, 0, 1 of the others 0, 0, 2 - - Si of the 1st 

 and 4th p. 1, 2, 5, of the 2nd and 3nd 1, 2, 6. 



Fifth pair of legs asymmetrical. Re 1 and Re 2 of the 

 right leg uniting, carrying on the interiör margin a strong, 

 denticulated upwards directed spine reaching nearly to the 

 end of Re 3. Se 1, 1, 2. Si of Re 3 four. — Re of the left 

 leg 3-jointed, Re 1 shorter than Re 2, and Re 3 longer tnan 

 Re 1 and 2 together — Se 1, 1, 2, Si 0, 1, 4. Si of Re 2 a 

 strong spine as long as the joint. St of Re 3 of the right and 

 left leg straight, knife like, 3 A as long as the joint. Ri of 

 both legs similar, about half as long as Re, 3-jointed. Ri 1 

 short, as long as broad. Ri 2 more than twice as long as Ri 

 1, with dense short hairs on the interiör side. Ri 3 short. Se 

 0, 0, 2. Si 1, 1, 4. 



Centropages notoceras N. sp. 



Diag-n. Female. First joint of the anterior antenn 8e (Aa 

 1 — 4) with two spines, second joint (Aa 5) with one spine, 

 so also the 7th and 8th (Aa 10 and 11). Last thoracic seg- 

 ment ending symmetrieally in spines parallel to the longitu- 



