352 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 18 



Harpinia crenulata Boeck 



Harpinia crenulata Boeck 1871: 136; Chevreux 1887: 578; Meinert 

 1893: 159; Sars 1895: 158-159, 689, pi. 55, fig. 2; Norman 1895: 

 483; Walker 1895: 297; Chevreux 1898: 477; Norman 1900: 337; 

 Chevreux 1900: 36-37; Walker 1901: 300; Stebbing 1906: 141- 

 142; Scott 1906: 148; Chevreux 1911 : 189, pi. 10, figs. 14, 15; Tat- 

 tersall 1913: 7; Bjorck 1915: 15; Chevreux and Fage 1925: 110- 

 111, fig. 105; Stephensen 1925: 164-165, fig. 49, II-IV; Schneider 

 1926: 18; Stephensen 1926: 60-61; Stephensen 1928: 142-143, fig. 

 27, 12-15; Stephensen 1929: 86-87, fig. 21, 105; Oldevfg 1933: 84- 

 86; Chevreux 1935: 74; Moore 1937: 119; Stephensen 1938: 152- 

 153; Stephensen 1940: 20; Gurjanova 1951 : 380-381, fig. 231. 

 IHarpinia nana Bonnier 1896: 633-636, pi. 37, fig. 2. 



Remarks. — There seem to be two geographic varieties of this spe- 

 cies. Specimens from Greenland and Iceland have simple serrations on 

 peraeopod 5 while specimens from Norway to the Mediterranean have 

 been figured with tripartite serrations. 



In the figures given by Stephensen 1925 there are four types of 

 ornamentation on the third pleonal epimera: (1) a simple rounded pos- 

 terior corner in a male; (2) a slight protuberance at the lower corner; 

 (3) an hemicircular invagination with the limbs sharply acute; (4) an 

 invagination guarded by serrations on the upper posterior edge. 



The writer is unconvinced that Harpinia nana Bonnier should be 

 fused with H. crenulata. If one compares Bonnier's figures with those 

 of Sars 1895 there are a number of striking differences to be seen; H. 

 nana differs from H. crenulata in: (1) the tooth of pleon segment 3 

 is rather larger; (2) article 2 of peraeopod 5 is larger, broader, pro- 

 duced downward more and bears larger and sharper posterior teeth; (3) 

 uropod 2 has very long peduncular setae; (4) the cusps defining the 

 gnathopodal palms are larger and shaped differently; (5) the dactyli 

 of the peraeopods appear longer. 



Distribution. — West of Greenland ; Kara Sea ; Norwegian Sea ; 

 Iceland; Kattegat and Skagerrak; British Isles; Bay of Biscay; Medi- 

 terranean coast of France, Corsica and Algeria. 



Harpinia crenuloides Stephensen 



Harpinia crenuloides Stephensen 1925: 165-166, fig. 49, I. 



Distribution. — West of Greenland and southwest of Iceland. Depth, 

 600 to 1505 meters. 



