A REVIEW OF THE MYSIDACEA 163 



Genus ANTARCTOMYSIS Coutiere 



Antarctomysis Coutiere, 1906, pp. 1, 6. 



ANTARCTOMYSIS MAXIMA (Hansen) 



Mysis maxima Hansen, in Holt and Tattersall, 1906a, p. 11. 



Antarctomysis maxima Coutiere, 1906, p. 1, pi. 1 ; pi. 2, figs. 13-20. — Hansen, 

 1908b, p. 13, pi. 2, figs. 3a-m.— Tattersall, 1908, p. 36, pi. 8, fig. 1. 



Occurrence. — Antarctic: Bay of Islands, January 1913, collected 

 by R. C. Murphy, 2 specimens from the stomach of Pygoscelis papua. 



Distribution.— Circumpolar in the Antarctic and sub-Antarctic 

 regions. 



Remarks. — With reference to what is written under the genus Mysis 

 as to the presence of a pair of vestigial oostegites on each of the fifth 

 and sixth thoracic limbs, it is interesting to note that Coutiere (1906) 

 in his original description of this species notes that the marsupium 

 is composed of three pairs of brood lamellae and that there is a rudi- 

 mentary pair on the fifth thoracic limbs, which takes no part in the 

 formation of the marsupium. 



The present record is the first one to indicate that this species forms 

 part of the food of another animal, in this case one of the penguins. 



Genus ARTHROMYSIS Colosi 



Macromysis Cunningham, 1871, p. 497. 

 Arthromysis Colosi, 1924, p. 3. 



ARTHROMYSIS MAGELLANICA (Cunningham) 



Synonymy and locality record may be found on page 246. 

 Genus HEMIMYSIS G. O. Sars 

 Hemimysis G. O. Sars, 1869, p. 336. 



HEMIMYSIS LAMORNAE (Couch) 



Mysis lamornae Couch, 1856, p. 5286, figs. 1-5. 



Distribution. — Naples*, identified by A. M. Norman. 



Genus MYSIS Latreille 



Mysis Latreille, 1803, p. 282. 



Megalophthalmus Leach, 1830, p. 176. 



Onychomysis Czerniavsky, 1882a, p. 138, pars ; 1887, p. 79. 



Michtheimysis Norman, 1902, p. 477. 



Mesomysis Norman, 1905, p. 11 (nee Czerniavsky, 1882a, p. 59; 1882b, p. 41). 



The genus Mysis was established by Latreille with Mysis oculata 

 (Fabricius) as the type. M. mixta, described by Lilljeborg in 1853, 



