302 Part III. — Ninth Annual Report 



1880. Edinosoma atlanticum, Brady, loc. cit, vol. ii. p. 13, 

 pi. xxxviii. figs. 11-19. 



Habitat. — East of Inchkeith, in surface tow-net, November 1890; 

 frequent. This is a very small species, and consequently may "be easily 

 overlooked ; but though frequent in a tow-net collection in November, I 

 have obtained it very rarely since. I am inclined to believe that some 

 of the recent additions to the Forth Crustacea, at least in the case of 

 pelagic species, are only occasional visitants, through having wandered 

 out of their way, or been carried by currents within the confines of the 

 estuary. I may state in proof of this that Thalestris serrulatus, Brady, of 

 which several specimens were obtained in a surface tow-netting in 1889, 

 has not since been observed by me anywhere within the Firth of Forth. 

 Though this appears to be the first recorded observance of Edinosoma' 

 atlanticum on the east of Scotland, it has been obtained from several 

 places on the West Coast, especially the Loch Fyne district. Dr T. 

 Wemyss Fulton has obtained it in Upper Loch Fyne, and Mr I. C. 

 Thompson, F.L.S., records it from Lower Loch Fyne ; also from Loch 

 Striven, off Kirn, and south of Arran, Firth of Clyde. It was first 

 described by Brady and Robertson from specimens collected by Mr E. C. 

 Davison in the open sea, to the west and south-west of Ireland. 



Tacliidius discipes, Giesbrecht. 



1853. Tachidius brevicornis, Lilljeborg, 'Deer.,' p. 196 (non- 



Miiller). 

 1880. Tachidius brevicornis, Brady, loc. cit, vol. ii, p. 20, 



pi. xxxvii. 

 188L Tachidius discipes, Giesbrecht, op. cit., p. 108, pi. ii. 



fig. 4; pi. iv. figs. 25, 28, &c. 



Habitat. — Brackish-water pools at the mouth of Cocklemill Burn, 

 Largo Bay, July 1890. 



Canthocamptus palustris, Brady. 



1880. Canthocamptus palustris, Brady, loc. cit., vol. ii. p. 53, 

 pi. xxxix. figs. 13-23. 



Habitat. — Brackish-water pools, May Island, 1889. This, though like 

 the last, a brackish-water species, and inhabiting similar localities, need 

 not be mistaken for it. Canthocamptus palustris is more slender, and the 

 anterior antennae are longer and eight-jointed; the fifth feet are also different. 



Dactylopus tenuiremus, Brady and Eobertson. 



1875. Dactylopus tenuiremus, B. & R., ' Brit. Assoc. Report,' p. 



197. 

 1880. Dactylopus tenuiremus, Brady, loc. cit., vol. ii. p. 115, pi. 

 lvi. figs. 12-18. 



Habitat— Kirkcaldy Bay, dredged 27th March 1891, readily dis- 

 tinguished from other species of the genus by the form of the anterior 

 antennae, which are slender and comparatively long. 



Dactylopus flavus, Claus. 



1866. Dactylopus flavus, Claus, ' Die Copepoden-Fauna von Nizza. 



p. 28, t. iii. figs. 13-16. 

 1880. Dactylopus flavus, Brady, loc. cit, vol. ii. p. 116, pi. lvi. 

 figs. 1-11. 



Habitat— With the last, and also Largo Bay. This Dactylopus is 

 easily distinguished from the others by its broad depressed form; it is a 

 small species, being little over half a millimetre in length. 



