A REVIEW OF THE MYSIDACEA 



41 



fathoms, March 3, 1933, 1 adult male, 14 mm. ; 1 adult female, 15 mm. ; 

 1 immature female, 10 mm. 



Distribution. — This species has been recorded from the Gulf of Aden 

 (Illig) and the Indian Ocean (Tattersall). The occurrence of the 

 species in the Caribbean Sea is therefore a matter of great interest 

 from the point of view of geographical distribution. 



Figure 5. — Petalophthalmus oculatus Illig: a-e, First to fifth pleopods of male, X 33; /-f, 

 first to fifth pleopods of female, X 33. 



Remarks. — I have already recorded (1937) these specimens, and I 

 now add the following notes on them. On the whole they agree very 

 well with Illig's description and figures except for the pleopods. The 

 carapace leaves only the last two thoracic somites completely free, not 



