Report on ihe Crusfacea Hc.ldzopoda of Irelind. 223 



appear in the collection. The bulk of the survey material was taken in bags of 

 mosquito-netting suspended inside the large beam trawl. This is, apparently, 

 a most efficacious method of collecting SchizojDods, but has the disadvantage of 

 injuring the specimens on account of the strain against the meshes resulting from 

 the comparatively high speed at which the trawl is hauled, and the frequent irrup- 

 tion of large fish, crabs, sand, and other injurious matters. Mosquito-netting is, 

 moreover, rather coarse for such small creatures as Erytlirops elcgans, &c., and this 

 must be borne in mind in considering the evidence afforded by our record of the 

 numbers of different species taken in the several hauls. 



In the systematic list it will be understood that we adopt Norman's classifica- 

 tion and synonymy, unless the contrary is expressly stated. Further, in the brief 

 account which we have given of the distribution, it has seemed to us desirable to 

 condense the references by ascribing to Norman (A. M. N.*) those records, whether 

 original or compiled, which appear in his paper. In some cases we have condensed 

 the record still further, as by substituting " E. and W. Scotland" for various 

 localities on both coasts. Professor Sars' work is too well known to need mention 

 here ; while Norman has himself ackowledged the assistance of Mr. Thomas Scottf 

 and others in the communication of British forms. The most important paper, 

 after Norman's, dealing with Irish Schizopoda, is that of Mr. A. O. Walker.J 

 Records other than Irish, which have appeared subsequent to Canon N<n-man's, are 

 indicated by the author's name or initials. Sir. Walker's records from the Irish Sea, 

 which are of importance on account of the propinquity of the localities to the Irish 

 area and of the absence of any records from the adjacent jDarts of the Irish coast, 

 are to be found in the Transactions of the Liverpool Biological Society. Where a 

 locality is followed by a colon or full stojD without the citation of an authority, it 

 must be taken that we are ourselves resi^onsible, while a note of exclamation 

 indicates the confirmation by ourselves of the record of a previous observer. 



Sub-order.— SCHIZOPODA. 

 Family.— LOPHOGASTRID-ffi. 



Genus Lophogaster, M. Sars. 



Lophogaster typicus, M. Sars. 



Not in the Hurvey Coltection. 



Museum^ Dublin. — 50 miles W. \ S. of Dursey head, 211 fathoms. July 15th 



1886. 



f Mr. Scott's recent records are indicated below by the initials T. 8. 

 % Trans. Liverjjool Biol. Soc, sii., 1893, p. 164 (A. 0. W.*). 

 212 



