308 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 18 



tus, while the dactyls of the peraeopods seem shorter and stouter; the 

 third pleonal epimeron is less obtusely rounded in M . pectinatus. It is 

 my belief that these characters are not enough to require distinct 

 specific names. Norman 1900 has reached the same conclusion in his 

 synonymy. 



Distribution. — In the British Isles as far north as the Firth of 

 Clyde; Atlantic Coast of France; north coast of the Mediterranean 

 as far east as Corsica and Genova. Meropelagic and benthic to 80 m. 



Genus Leptophoxus G. O. Sars 



Leptophoxus G. O. Sars 1895: 146. 



Diagnosis. — Peraeopod 3 with article 2 broad; palp of maxilla 1 

 uniarticulate ; molar of mandible simple; eyes absent; palp article 3 

 of maxilliped produced conically; gnathopod 2 enlarged; palp article 3 

 of mandible broad, truncated. 



Type species. — Phoxus falcatus G. O. Sars 



Leptophoxus falcatus G. O. Sars 



Phoxus simplex Boeck 1870: 135 {fide Sars 1883, Norman 1900, not 

 Bate 1857). 



Phoxus falcatus Sars 1883: 84. 



Leptophoxus falcatus Sars 1895: 147-148, pi. 50; Norman 1895: 482; 

 Stebbing 1906: 136-137; Stephensen 1925: 161-162; Stephensen 

 1926: 59-60; Stephensen 1928: 137-138, fig. 26, 13-15; Stephensen 

 1929: 84, fig. 21, 100; Oldevig 1933: 83; Stephensen 1938: 150 

 (and references). 

 Distribution. — Greenland, east and west coasts; Norway; North 



Sea; Skagerrak. Depth: 56 to 2258 m. 



Leptophoxus falcatus icelus, new subspecies 



(Plates S3, 54) 



Diagnosis. — This subspecies closely resembles L. falcatus, differing 

 in a number of minor characters which appear to be of racial value. 

 These points of difference in L. f. icelus are: 



1. The last article of the maxillipedal palp is rather stout and 

 scarcely longer than the projection of article 3. 



