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U.S. NATIONAL MUSEUM BULLETIN 2>58 



Figure 41. — Microjassa claustris, new species, holotype, male, 1.9 mm., station 45-W-5: 

 a, uropod 3; b, uropod 1; c, coxae 1 and 2(1 drawn inside of 2);d,e,f,g,h, coxae 3,4, 5, 6, 7; 

 i, mandible. Female, 2.6 mm.: j, uropod 3; k, coxae 1-7, left to right; /, telson. 



similar to those of Parajassa angularis Shoemaker (1942b) except 

 for expanded third mandibular palp article (see figure herein) ; inner 

 plate of maxilla 1 well developed as in P. angularis; maxillipedal 

 palp article 4 short as in P. angularis and armed medially with 4-5 

 setae; coxa 1 in male about 60% as long as coxa 2, in female about 

 75%; coxa 5 in both sexes as long as coxa 4, coxae 6-7 not longer 

 than posterior lobe of coxa 5; gnathopod 1 small and similar in both 

 sexes, poorly developed in comparison to Microjassa cumbrensis 

 (Stebbing and Robertson, 1891), article 5 slightly less than 60% 

 as long as article 6, the latter moderately expanded, palm about 

 equal to posterior margin of article 6, defined by 3 spines (2 lateral, 

 1 medial); gnathopod 2 of female similar to 1 but article 5 shorter; 

 gnathopod 2 of male with elongated and enlarged sixth article, palm and 

 posterior margin of article 6 confluent, armed distally with 2 humps, 

 proximally with a poorly developed, slightly reverted, blunt process 

 at joint with article 5, palm sparsely setose, dactyl reaching slightly 

 more than halfway along palm, inner margin sinuous, article 5 very 

 small, posterior lobe narrow, short; pereopods, except for coxae, 



