346 TRANSACTIONS, NATURAL HISTORY SOCIETY OP GLASGOW. 



EXPLANATION OF VLATE— continued. 



Figure 25. — Prioniodus geminus, Hinde, new species, x42; from Upper 



Limestone, Glencart, Dairy. 



Figure 26. — Prioniodus porcatus, Hinde, new species, x 30 ; from Uppe 



Limestone, Monkcastle, Kilwinning. 



Figure 27. — Ctenognathus obliquus. Pander, x 20 ; from Lower Lime- 

 stone, Birkhead, Dairy. 



Figure 28. — Ctenognathus obliquus. Pander, x 24 ; from Lower Lime- 

 stone, Birkhead, Dairy. 



Figure 29. — Ctenognathus obliquus, Pander, x 20 ; from Lower Lime- 

 stone, Birkhead, Dairy. 



Notes on some Crustacea from Fairlie and Hunterston, 



Firth of Clyde, 



By Thomas Scott, F.L.S., Mem. Soc. ZooL de France, Naturalist 

 to the Fishery Board for Scotland. 



[Read 27th December, 1898.] 



Fairlie, Hunterston, and Portincross are places on the Clyde, 

 the names of which have been familiar to me for many 

 years ; yet the visit I am about to refer to is the first I have 

 made to any of them. Among the various reasons that induced 

 me to make this visit, the following may be given : — It is, for 

 example, a notorious fact that not a few rarities, both botanical 

 and zoological, have been recorded from one or other of the places 

 named, and also that frequent reference to one or other of these 

 places is to be found in natural history works of various kinds. 

 Moreover, associated with the district are the names of some of 

 our most eminent naturalists, who have occasionally made it 

 their hunting ground, and have been rewarded by the interesting 

 discoveries they have made. It might have been thought, how- 

 ever, that reasons like these should rather have tended to 

 discourage the visits of subsequent investigators ; such reasons 

 were apt to suggest to the mind of the would-be discoverer, that 

 the finding of all these rarities was a plain indication that the 

 district must already have been more or less thoroughly 

 examined, and was now scarcely likely to yield much that was 



