156 MARINE FAUNA OF ST. ANDREWS. 



aula, Litkodes, Gebia deltura, Hippolyte spinas, and Dory- 

 phorus Gordon)'. 



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. Tin- 

 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 Ilaskeir near the north-west 

 point of North Uist, where thefrequent inroads of the fishermen 

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

 less frequent in their accustomed haunts. Xantho, Munida, and 

 the rarer species of Crangon 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, Alpheus ruber and 

 Pagurus 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 

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

 tunus pusillus,P. tuberculatum, Pagurus /)u/)escPiis,nn(\Pandalus 

 hnvirostris are characteristic, besides the rarer Pagurus tri- 

 ■ ar/natus, Crangon serratus, and Sabinwa septemcarinata. 



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

 ance with several species of Palsemonidae and Galatheidae. 



Suborder STOMAPODA. 



Fani. Mysidje. 

 Genus Mysis, Latreille. 



Mysis flexuosa, U. F. MttUer; Bell, Brit. Crust, p. 336 

 (as .1/. chamceh on). 



Very abundant in rock-pools. 



* It was recently stated in ' Land and Water ' that Main squinado had 

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

 land, who forwarded the specimen, 1 am enabled to observe that it was 

 only LUKodcl main. 



