NON-PARASITIC MARINE COPEPODA. 441 



2. Dactylopus similis, Clam. 



One specimen dredged in a depth of four fathoms off Seaton 

 Carew. 



3. Dactylopus brevicornis, Glaus. 



On Laminaria saccharina, at Roker ; not common. 



4. Dactylopus Normani, nov. sp. PL XX., figs. 13-17. 



Closely approaching D. tisboides, from which it differs, how- 

 ever, in the following particulars : — The superior antennas are 

 eight-jointed, and not so densely setose, the proportionate lengths 

 of the various joints being as follows : — §•, f , i, i, -§-, |- , -£, -£. 

 The secondary branch of the lower antennas bi-articulate, each 

 joint bearing two moderately long setas. Lower footjaw (gnatho- 

 pod) simply chelate, the inner margin of the hand fringed with 

 short setae. Longer branch of the first foot slender, bearing 

 almost at the extremity of the outer margin a short ciliated seta. 

 Fifth pair of feet large, outer branch subovate, bearing three 

 long setaa, one at the apex, one on each lateral margin, and 

 three shorter ones on the outer margin between the apical and 

 lateral setae ; inner branch very much smaller, subquadrate, ex- 

 tending only half the length of the outer, bearing four primary 

 setae, two of them long and two of moderate length, the inter- 

 spaces being densely ciliated. 



Hab. — Roker, on Laminaria saccharina ; rare. 



Genus SCUTELLIDIUM, Claus. 



1. SCUTELLIDIUM TISBOIDES, ClaUS. PL XIX., figS. 6-10. 



One specimen on the frond of Laminaria saccharina at Roker. 

 Genus ALTEUTHA, Baird. 



1. Alteutha bopyroides, Claus. 



Often taken abundantly in the surface-net, all round the British 

 Islands. 



2. Alteutha purpurocincta, Norman. 



A. purpurocincta, Norman, Last Shetland Dredging Report. 



