of the Fishery Board for Scotland. 251 



collected about thirteen to fourteen miles north-east of Buckie, in 50 to 55 

 fathoms, November 3rd, 1 900. Idya cluthce is quite distinct from any other 

 species of Idya. The difference in the armature of the first thoracic 

 feet and of the form of the fifth pair is marked, and are of themselves 

 sufficient J:or distinguishing the species. 



Idya minor, T. and A. Scott. 



A few specimens of this Idya were obtained in a gathering of Copepods 

 collected in the store-pond of the Sea-Fish Hatchery at Bay of Nigg, in 

 August, 1900. They occurred amongst crowds of Idya furcata, and were 

 readily distinguished by their small size. The same species was obtained 

 in a gathering collected by hand-net in the Bay of Nigg on October 1st. 



Idya longicornis, T. and A. Scott. 



This species was obtained in Lerwick Harbour, Shetland, in the same 

 gathering with Alteidha purpurocincta already referred to. The occur- 

 rence of Idya longicornis here extends the distribution of the species 

 considerably. 



Synatiphilus luteus, Canu and Cuenot. 



1892. Synatiphilus luteus, Canu aud Cuenot, Commens. paras. 

 Echinod,, Rev. Biol, du Nord de la France, Oct. 1872, p. 19, 

 PI. T., figs. 6, 7. 



1893. Remigulus tridens, T. and A. Scott, Ann. and Mag. Nat. 

 Hist. (6), vol. xii., p. 242, PI. XL, figs. 15-20; PI. XII., 

 figs. 1-3. 



This species occurred in some dredged material collected near the head 

 of Loch Eil (off Loch Linnhe), in 10 to 15 fathoms, April 3rd, 1900. 

 S. luteus was added to the British fauna in 1893 as a new species under 

 the name of Remigulus tridens, from specimens collected near the mouth 

 of Loch Spelve, Island of Mull, in 1892 (but not recorded till the 

 following year). As the species, however, had already been described by 

 Canu and Cuenot, as indicated above, the name Remigulus tridens 

 necessarily becomes a synonym. So far as I know, Synatiphilus luteus 

 has not been obtained anywhere else in Scotland than in the district of 

 Loch Linnhe. It seems to be a rare species. 



Corycams anglicus, Lubbock. (PI. XVIIL, fig. 11.) 



In my paper on tow-net gatherings published in the Eighteenth Annual 

 Beport, Part III., I recorded Cory emus anglicus from the Firth of Clyde, 

 and submitted a description of the species, which was illustrated by a 

 number of figures ; these figures were prepared from a female specimen, 

 as no males had been observed. One of the gatherings which were 

 collected during the investigations carried out on board the steam trawler 

 "St. Andrew" was obtained while the vessel was proceeding along the south- 

 east coast of Shetland between Lerwick and Sumburgh Head, and about 

 seven miles offshore; the gathering was collected by passing the water from 

 the donkey-pump through a fine tow-net. In this gathering, collected on 

 October 16th, three specimens of a Corycams were found, which I at 

 first thought might be C. obtusus, Dana, as the genital segment of the 

 abdomen possessed a small but distinct ventral hook at its proximal end, 



