AMPHIPODA AND ISOPODA OF THE FIRTH OF CLYDE. 45 



occasions, twenty yards apart. It has also occurred 

 at Falmouth, where it was first taken by Mr. 

 Webster ; at Skye and Shetlands by Mr. Barlee ; 

 and dredged in 4 fathoms, in Bressay Sound, Shet- 

 lands, by the Kev. A. M. Norman and the late Dr. 

 Jeffreys. 



MICRODEUTOPUS ANOMALUS, Rathke. 



Gammarus anomalies, Rathke, Acta Accad. Leop,, 

 xx. (1843), p. 63, t. iv., fig. 7. 



Lembos Cambriensis, Spence Bate, Brit. Assoc. Rep., 

 1855, p. 58. 



Autonoe anomala, Bruzelius, Skand. Amphip. Gamm. 

 (1859), p. 25, pi. 1, fig. 4. 



Microdeutopus anomalus, Spence Bate, Cat. Amphip. 

 Crust. Brit. Mus. (1862), p. 154, pi. xxx., fig. 3. 



Microdeuteropus anomalus, Norman, Rep. on the 

 Shetland Crust. (1868), p. 281. 



Habitat. — Dredged off the Tan Buoy, Cumbrae, in 

 6 to 8 fathoms, bottom Melobesia calcarea, var. 

 rubra, which seems to favour the growth of La- 

 minaria saccharina, whose fronds (especially the large 

 fibrous roots) yield a rich harvest of many orders of 

 invertebrates. The search is all the more successful 

 when the contents of the dredge are repeatedly 

 washed in a white basin or glass jar. Also dredged, 

 a little farther out, in mud and sea-weed ; and 

 between the Allans, in 2 to 3 fathoms, the bottom 

 here being all covered over with patches of sea- 

 weeds of various kinds, of which portions are 

 generally brought up in the dredge, in most cases 

 accompanied with a large diversity of species ; and 

 off Hunterston, opposite Millport, in 12 to 14 

 fathoms, on mud, sand, and gravel. 



This species was first taken by Bate and Westwood 

 in Oxwick Bay, on the coast of Glamorganshire ; 

 and by the Rev. A. M. Norman and the late Dr. 

 Jeffreys, in 5 fathoms, in the outer Skerries Har- 

 bour, Shetlands. Rathke and Lilljeborg have taken 

 it on the coast of Norway. 



