MACRURA. SCII MITT. 377 



The iifth legs exceed the antennal scale by about the 

 length of the dactyl, the fourth by not quite half the 

 length of the dactyl, while the third legs reach just about 

 to the anterior border of the scale. Of the right fifth 

 leg, which is about 58 mm. long, the dactyl measures 

 2-5 mm., the propodus 14 mm., and the carpus nearly 

 13 mm. 



The several females are about the same size as the 

 liolotype. varying not more than a millimetre in the 

 length of the rostrum, carapace and abdomen, or telsou. 

 The rostrum of the male specimens varies from 23 to 34-5 

 mm. in length, the carapace from 17 to 24 mm., and the 

 abdomen and telson together from 52 to 71 mm. in length. 



Remarks. Certain differences in the tuberculation 

 of the third abdominal somite between Campylonoius and 

 Gonatonotus remarked by Bate 60 are rendered of no 

 significance by the present species, and therefore his diag- 

 nosis of the former genus needs to be amended. Aside 

 from a slight superficial resemblance, the two genera are 

 fundamentally quite distinct, belonging to different 

 families. The exopodite of the foliaceous first maxilliped 

 in the Cainpylonotiis is provided with a lash or flagelluni, 

 and the thoracic legs are without exopodites; while in the 

 Hoplophorida?, to which the genus Gonatoiiotus belongs, 

 just the reverse is true. 



Incidentally the carina on the third abdominal somite 

 of Gonatonotttft (i.e., crassus M. Edw. 61 ) ends in a spine, 

 while the posterior margin of the same somite is provided 

 with a pair of submedian spines instead of a single median 

 one. The fourth somite has a median spine with a sub- 

 median one on either side, while the fifth again has only 

 a submedian pair of spines. Laterally each of the epimera 

 of the first to the fifth somites is armed with a spine. 



Family PANDALID/E. 



Genus I'LESIOXIKA, Bate. 

 PLESIONIKA MARTI A (M. Edw,} 



Pandalus martins, Milne-Edwards, Kecueil de Figures de 

 Crustaces uouveaux on pen onnus, 1883, pi. 21. Id., 

 McCnlloch, Rec. Austral. Mus., vi., 1907, pt. 5, p. 355. 



80 "Challenger" Kept., Zool., xxiv., Macrura, 1888. p. 768. 

 01 Ann. Sci. Nat. (6), Zool., xi., 1881, Art. 4, p. 10. 



