214 ANNALS OF SCOTTISH NATURAL HISTORY 



(R. C.) common. Mr. Ellison took 7 specimens this summer 

 near Stromness from M. orcadcnsis. 



DASYCANEMUS, Rothsch. 29, v.' 06 : abundant in unoccupied nest 

 of Sorex aranens ? in bank near Hillend. 



SORECIS, Dale (Gracilis Taschb.\ 7, vii. '06: on Sorex arancus, 



2 (MR. C.). 

 PENTACANTHUS, Rothsch. 26, iv. '06 : on Mus sylvaticus, 



Colinton, $. 



CTENOPSYLLUS, Kolen. 



MUSCULI, Difgcs. viii. '05 : $ from Mus mnsadus, Stromness, 

 (Robert Godfrey, "A.S.N.H.," April 1906). 2, i. '06: Many 

 from M. mi/scitlits, Edinburgh. 



EDINBURGH. 



THE TARDIGRADA OF THE FORTH VALLEY. 



(SECOND PAPER.) 



By JAMES MURRAY. 

 PLATE V. 



SINCE the first list of Forth Tardigrada appeared in this 

 journal in July 1905, some half-dozen additional species 

 have been found in the district, including an undescribed 

 species of the genus Diphascon^ and some new localities fall 

 to be noted for the species previously found. As in the 

 previous list, all the species here mentioned were collected 

 by Mr. Wm. Evans. 



Genus ECHINISCUS. 



No further species of this genus has been identified, but two 

 forms have been found which cannot be referred to any known 

 species. These are shortly described for the sake of future refer- 

 ence, but they are not named because there is at present so much 

 uncertainty as to the specific value of many points of structure in 

 Echiniscus. 



Echiniscits sp. ? Length y iy- inch, relatively broad, plates 9, 

 granules moderate, lateral setae 5, at posterior angles of head, 

 shoulder, first and second paired and lumbar plates, progres- 

 sively longer from second to fifth, head seta also long ; dorsal 

 processes a small spine on posterior edge of each plate of first 

 and second pairs ; fringe of sharp teeth on last leg ; inner 



