156 MARINE FAUNA OF ST. ANDREWS. 



mela, Liihodes, Gebia deltura, Hippolyte spinus, and Dory- 

 pliorus Qordoni. 



In contrast with the fauna of St. Andrews, we have in the 

 mild sea of the west of Scotland the fine velvet crabs {Portu- 

 nus puber) amongst the seaweeds between tide-marks. The 

 common lobster is also much more abundant, though the 

 wholesale fishing has of late years told severely on this crusta- 

 cean, even on the most remote shores of the Outer Hebrides — 

 as, for instance, off the rocks of Haskeir near the north-west 

 ]ioint of North Uist, where tlie frequent inroads of the fishermen 

 with their lobster-pots and floats have rendered even the seals 

 less frequent in their accustomed haunts. Xanthoj Munida, and 

 the rarer species of Craiigon and Hippolyte are also absent from 

 St. Andrews. In the south of Britain, again, are the splendid 

 spiny lobsters off the rocky shores, velvet crabs, Pirimela, and 

 Ebalia under stones between tide-marks, Alpheiis ruber and 

 Pagurtis cuanensis in littoral pools, Pilumnus in the crevices 

 of the tidal rocks, Pagurus Prideauxii with the beautiful 

 Adamsia adherent to its protecting shell, Maia *, Dromia, and 

 Polyhius. In the northern waters swarms of the hardy Por- 

 t.unus pusilliis^P, tuberculatus, Pagurus pubescens, andPandalus 

 hrevirostris are characteristic, besides the rarer Pagurus tri- 

 carinatus, Crangon serratus, and SabincBa septemcarinata. 



I am indebted to the Eev. A. M. Norman for kind assist- 

 ance with several species of Palcemonidse and Galatheidas. 



Suborder STOMAPODA. 

 Fam. Mysida. 



Genus Mysis, Lati-eille, 



Mysis jlexuosa, O. F. Miiller ; Bell, Brit. Crust. ]). 336 

 (as M. chamceleon) . 



Very abundant in rock-pools. 



* It was receutly stated in ' Land and Water ' that Maia squinado had 

 been procured near the Bell Rock ; but, by the kindness of JMr. F. Buck- 

 land, who forwarded the specimen, I am enabled to observe that it was 

 only Litliodcs maia. 



