NEW MARINE ISOPODS — MENZIES 



141 



Figure 26. — Pleurogonium californignse, new species: a. Left third pleopod, male paratype; 

 h, maxilliped, male paratype; c, right gnathopod, holotype; d, left second pleopod, male 

 paratype; e, male first pleopod, paratype; /, right mandible, male paratype; g, incisor 

 process of left mandible, male paratype; h, right first and second maxillae, male paratype; 

 T, right seventh peraeopod. (Magnification as indicated by scales: c-e and i same as a; 

 j-h same as b.) 



Peraeon. — Lateral borders of first somite markedly anteriorly pro- 

 duced, those of somites 2 and 3 less so, that of somite 4 laterally 

 directed, those of somites 5 to 7 posterolaterally directed. First somite 

 exceeding twice the length of second somite, somites 2 to 7 short and 

 subequal in length. Epimeral plate of first somite not separated from 

 somite and bearing a long, narrow, anterolaterally directed epimeral 



