A'ERMIGRADA. 445 



length ; these being the respective dimensions of those described by Pro- 

 fessor Forbes and Mr. M'Coy. The body of my specimens^the larger of 

 which is under 2 inches in length — appears to the unassisted eye not only 

 quite smooth, but shining, though in a subdued tone ; yet, when magni- 

 fied, extremely minute papillae are seen over its surface. I therefore re- 

 gard S. (/ranulosus as not distinct from »S'. Ilarveii. The figure of *S'. 

 granulosus represents my specimens very well : they are of a very pale 

 greyish-brown colour. 



S. Forbesii, M'Coy (Ann. Nat. Hist., vol. xv.). 

 Roundstone, not uncommon, Professor M'Coy. 



aS*. tenuicinctus, M'Coy (Ann. Nat. Hist., vol. xv.). 

 Very common. West of Ireland, Professor M'Coy.* 



Genus SiPUNCULUS. 

 S. Bernhardus, Forbes. 

 Belfast and Strangford Loughs ; Killery in the West, W. T. 



S. PallasU, Thompson MSS. 

 North of Ireland. 



Genus Priapulus. 

 P. caudatus, Lam. 



North of Ireland, W. T. Dublin Bay, Dr. Coulter. Roundstone, at 

 low-water mark, Mr. M'Calla. Dredged in Birterbuy Bay, Dr. Farran. 



From Larne Lough, in October, 1849, Mr. Wm. Darragh brought two 

 of these, where they were dug up with the two species of lug-worm. 

 They are used as bait, but the fish do not take them so freely as they do 

 the two kinds of lug-worm. The young coal-fish take them more freely 

 than the young codlings do. 



Genus Thalassema. 

 T. Neptuni, Gfertn. 

 North of Ireland, Mr. Templeton. 



* Mr. Hyndman found two specimens of an unknown species (? ?) of this 

 genus under stones at Tory Island. 



