I. '08. 



117 



L. Paulsoni — cont'd. 



No epipod at base of 

 second maxillipcdes. 



Telson acutely pointed 

 apically with a pair of ter- 

 minal spines. 



L. lar — cont'd, 

 epipod at base 



of 



An 

 second maxillipcdes 



Telson broadly rounded 

 apically with three pairs of 

 terminal spines. 



Leontocaris Paulsoni was found off, the South African coast, 

 .25 miles off Lion Head, in 131 and 136 fathoms. 



Irish distribution. — Leontocaris lar has only been found at 

 two stations. On each occasion the trawl brought up 

 numerous specimens of Antipatharia and Lophohelia ; it seems 

 probable that the species is confined to areas where such Alcyo- 

 narians grow. The records are : — 



Helga. 



S.R. 223— 12/5/'05.— 53° 7' N., 14° 50' W. 500 fathoms. Trawl. 

 — Two females, 21 mm. 



S.R. 504~12/9/'07.— 50° 42^ N., 11^ 18' W. 627-728 fathoms. 

 Trawl — One male, 21 mm. 



Vertical range. — 500-627 fathoms. 



Genus Bythocaris, G. 0. Sars. 



Of this genus only a single specimen, w^hich has been deter- 

 mined as Bythocaris gracilis, has been found off the Irish 

 coast. B. gracilis is very closely related to the common arctic 

 form B. Payeri, w^hich was taken by the Knight Errant expe- 

 dition (JSTorman), and more recently by Dr. Wolfenden in the 

 Faroe Channel. ^ 



Bythocaris gracilis, Smith. 



PI. XVIII, figs. 1-3. 



Bythocaris gracilis, Smith, 1887, PI. xii, figs. 3 and 4. 

 Bythocaris gracilis, Hansen, 1908. 



The solitary Irish example is a male measuring only 19 

 mm. ; it nevertheless agrees fairly well with Smith's descrip- 

 tion and figures of the ovigerous female. From the closely 



1 The species inhabiting this district are almost wholly arctic in 

 character, and it was very properly decided in 1890 that they could not 

 be admitted to the British lists. It thus happens that B. Payeri, 

 though found within five miles of the British area, will in all probability 

 never be caught within it, except by the merest accident. 



