Clare Island Survey. 



41 



NEBALIACEA, CUMACEA, SCHIZOPODA, AND 



STOMATOPODA. 



By W. M. TATTERSALL, D.Sc. 



Head April 22. Published June 4, 1912. 



The Clare Island marine area, as understood in this report, extends from 

 Blacksod Bay in the north to Slyne Head in the south. Seawards it may be 

 considered to extend to the fifty-fathom line. 



Up to about a dozen years ago no collecting appears to have been done in 

 this area. At least I can find no records pertaining to the orders of Crustacea 

 here dealt with. 



In 1899 the Fisheries Branch of the Department of Agriculture and 

 Technical Instruction for Ireland established a marine station at Inishbofin 

 and Ballynakill, and commenced a series of observations winch have gone very 

 far to elucidate the marine fauna of the southern part of the area. 



The Clare Island Survey, commenced some three years ago, has more 

 particularly dealt with the northern part of the district. In the preparation 

 of this report I have supplemented the results obtained by the latter survey 

 by including the species obtained by the former series of investigations, so 

 that the present report includes all the species of the Crustacea concerned 

 which have up till now been found in the area. The list of the Cumaeea 

 here given is partly derived from Caiman's paper, 1 and partly from the 

 collections made during the survey ; while the list of Sehizopoda has been 

 largely supplemented by extracts from a larger paper on the littoral Sehizopoda 

 of Ireland, which I have in preparation. 



The Crustacea here considered are creatures of normally bottom-haunting 

 habits, living either in rock-pools on the shore, or among the littoral seaweeds, 

 or buried in sand. But they have the additional peculiarity that they 

 frequently become true pelagic forms during the hours of darkness, and may 

 be captured in enormous numbers at such times. Whereas, therefore, the 

 usual method of collecting such forms is by using a dredge or attaching 



1 Fisheries, Ireland, Sci. Invest., 1904, I. (1905). 



R. I. A. FROC, VOL. XXXT. A 41 



