45 14 Proceedings of the Royal Irish Academy. 



to under that name by Scott, which, as Sars has pointed out, was a new 

 species (T. Scotti Sars). Both females and males were present, the latter, 

 until now, unknown. The fifth feet of the male are here figured 

 (PL III, fig. 10). 

 *Pteropsyllus consimilis Scott. — Off Killary Harbour, 24 fms., May, 1909, few. 



Family LAOPHONTIDAE. 



*Laophonte cornutaPhil. — -Ballynakill, 1901, few. Blacksod Bay, between tide- 

 marks, several. Inishlyre Harbour, 24 fms., March, 1910, few. Clew 

 Bay, 18 fms., August, 1910, two. 

 L. similis (Claus). — Westport and Clifden Bays (B. & B.). Olew Bay, 

 18 fms., August, 1910, common. Blacksod Bay, between tidemarks, 

 March, 1911, one. 

 L. horrida Norman. — Inishgowla Harbour, Clew Bay, 1-4 fms., August, 1909, 

 one. 



*L. stromi (Baird). — Clew Bay, 18 fms., August, 1910, two. Blacksod Bay, 

 between tidemarks, March, 1911, one. 

 L. serrata (Claus). — Clew Bay (Brady, Mon.). Clew Bay, 18 fms., August, 

 1910, one. 



*L. thoracica Boeck. — Inishlyre Harbour, 2-4 fms., March, 1910, one. 



*L. Koreni Boeck. — Clew Bay, 18 fms., August, 1910, one. Blacksod Bay, 

 between tidemarks, March, 1911, several. 



*L. brevirostris (Claus). — Blacksod Bay, between tidemarks, September, 1911, 

 common. Inishlyre Harbour, 2-4 fms., March, 1910,two. 

 L. BULLIGERA n. sp. (PL I, figs. 5-10, PL II, fig. 11).— Female (PL I, fig. 5), 

 length '53 mm. Body slightly depressed, thus appearing slender in 

 lateral view, with posterior margins of all the segments finely spinulose. 

 There is a marked constriction indicating the fusion of the 1st and 

 2nd abdominal segments to form the genital segment, and the postero- 

 lateral margins of lst-3rd abdominal segments are produced and 

 spinulose (Plate I, fig. 10). Anal segment as long as the preceding. 

 Furcal rami small, widely separated, about half as long as the anal 

 segment, and two-thirds as wide as long. Furcal setae long and slender, 

 uniformly tapering. First antenna (PL I, fig. 7) slender, moderately 

 long, six-jointed, with scanty setae ; proportional length of joints 



1 '.n'ooWm ' Second antenna (PI. I, fig. 6); endopodite one- 



jointed with one stout terminal and three more slender lateral setae. 

 Maxillipede with narrow hand and slender finger. First feet (PL I, fig. 8) > 

 endopodite slender with moderately strong terminal claw, exopodite two- 



