of the North-east Coast of England. 15 



Genus Dactylopus, Glaus. 



1. Dactylopus tishoides^ Glaus. 



On Laminaria saccharina at Roker and. Ryliope ; scarce. 

 Abundant in brackish pools at Seaton Sluice. 



2. Dactylopus switlis, Glaus. 



One specimen, dredged in a depth of four fathoms off Seaton 

 Garew. 



3. Dactylopus hrevtcorms, Glaus. 



On Laminaria saccharina at E-oker ; not common. 



4. Dactylopus Normani^ n. sp. PI. V. figs. 13-17. 



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

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

 eight-jointed, and not so densely setose, the proportional 

 lengths of the various joints being as follows : — -^, -f-, f , 4, -|, 

 I", I-, f . The secondary branch of the lower antennje biarti- 

 culate, each joint bearing two moderately long setge. Lower 

 foot-jaw (gnathopod) simply chelate ; the inner margin of the 

 hand fringed with short setffi. 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 setae (one at the apex, one on 

 each lateral margin), and three shorter ones on the outer mar- 

 gin between the apical and lateral setffi ; inner branch very 

 much smaller, subquadrate, extending only half the length of 

 the outer, bearing four primary setaj, two of them long and 

 two of moderate length, the interspaces being densely ciliated. 



Hal). Roker, on Laminaria saccharina ; rare. 



Genus Scutellidium, Glaus. 

 Scutellidium tisboides, Glaus. PI. IV. figs. 6-10. 

 One specimen, on the frond of Laminaria saccharina at 

 Roker. 



Genus Alteutha, Baird. 



1. Alteutha hopyroides^ Glaus. 



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

 British Islands. 



2. Alteutha purpurocincta, Norman. 



A. imrpurocincta, Norman, Last Shetland Dredging Report. 

 Peltidium ptirpureutn, White, Pop. Hist. Brit. Crust. 



On Laminaria saccharina at Roker and Gullercoats ; fre- 

 quent. Shetland {Rev. A. M. Norman). 



