Report on the Crustacea Schizopoda of Ireland. 229 
f/ 
Museum, Dublin.—No. 195, 1895. Noundstone. 
Previous Irish Records.—Port Magee entrance, Valentia Harbour (A. O. W.*): 
at surface, off N. and N.E. Ireland (Herdman). | 
Distribution —K. and W. Scotland; Whitby; Starcross (A. M. N.*): Dogger 
IBarne (I So) Iban Sea (Ha, Os Wo) 
Sweden; Denmark; mouth of the Seine (A. M. N.*): Heligoland, coasts of 
Germany and 8. Norway (Ehrenbaum): Channel Islands (Walker and Hornell). 
Gastrosaccus sanctus (Van Beneden). 
Survey.—Station 145, Killeany Bay, Aran. April 8th, 1891. 
Marine Laboratory.—Mouth of Killeany Harbour, 25th March, 1899; off Bofin 
Harbour, 17 fathoms, 17th July, 1899; Bofin Harbour, 4th and 5th August, 1899, 
common in surface tow-nets at night, but only one specimen found, in a bottom 
net, during the day time. 
No Previous Irish Record. 
Distribution —Ivish Sea (A. O. W.): Plymouth (W. Garstang!) : Jersey 
(Ai. Mil, IN), 
Belgium; Boulonnais; Naples; Goletta (A. M. N.*): Black Sea; Sea of Azov 
(Sowinski, 1894, 1895). 
Most of the specimens from Bofin have practically no trace of the upturned 
processes of the hind margin of the carapace, though agreeing in other respects 
with the type. The same peculiarity has been observed in material from 
Plymouth, and appears to require further attention. 
Genus Haplostylus, Kossmann. 
This genus is distinguished from Gastrosaccus by the rudimentary condition 
of the inner branch of the third pleopod of the male. Forwardly directed lobes 
of the posterior margin of the carapace are invariably absent. 
Haplostylus Normani (G. O. Sars). 
Gastrosaccus Normani, G. O. Sars, et auct. 
Not in the Survey Collection. 
Trish Record.—Oft Valentia (A. M. N.*). 
Distribution. Rockall (A, M. N.*). Plymouth. 
Mediterranean (A. M. N.*). 
+ We are indebted to Mr. W. T. Calman for the reference on which our diagnosis is founded. 
TRANS. ROY. DUB. SOC., N.S. VOL. VII., PART VII. 2K 
