852 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



joints, the three terminal ones forming tiie flagellum, which can not be 

 distinguished from the peduncle. 

 Thoracic segments subequal, with narrow epimera, those of the sec- 

 ond, third, and fourth segments reaching but hall 

 the length of the segments, the last three epimera 

 extending to the extremity of the segments. 



The abdomen is composed of three segments with 

 suture lines indicative of another. The terminal seg- 

 ment is broadly rounded posteriorly, with small but 

 acute lateral angles. The sides are almost parallel. 



The (irsfc four i)airs of legs are directed anteriorly; 

 the last three extend in a posterior direction. There 

 is no perceptible inequality in length. The dactyli 

 are bilid. 



Two specimens were sent by Mr. Heath from Mon- 

 terey Bay, California. 



Type.—^o. 22577, U.S.]^.M. 



22. EUSYMMERUS, new genus. 



Body elliptical. Palp of maxillipeds three-jointed. 

 Second pair of antennae with joints of flagellum all 

 consolidated and forming a single piece. Eyes dor- 

 sally situated. 

 Lateral margins of thoracic segments expanded, 

 edges straight and full. Epimera of second, third, fourth, and fifth 

 segments coalesced and firmly united with segments, those of the 

 sixth and seventh segments distinct and visible. 



Abdomen composed of one segment with suture lines indicative of 

 another partly coalesced segment. 



6o. EUSYMMERUS ANTENNATUS, new species. 



Body elliptical, tapering toward the extremity; surface smooth. 



Head three times broader than long, with the antero lateral angles 

 prominent. Anterior margin excavate. Lateral margins expanded. 

 Eyes situated dorsally on the extreme lateral margin in the median 

 transverse line. First pair of antenna; four jointed, short, extending 

 only a little beyond the second joint of the second pair of antenna". 

 Second pair of antennse are six-jointed, geniculate, the last or flag- 

 ellar joint being somewhat clavate. 



Thoracic segments with lateral margins expanded. Lateral edges 

 straight, full. ICpimera of second, third, fourth, and fifth segments 

 coalesced and firmly united with the segments; epimera of sixth 

 and seventh segments distinct and articulating with segments. 



Abdomen of only one segment with suture lines indicative of 

 another partly coalesced segment. Abdomen i)osteriorly rounded, 

 tapering from the base to the extremity. 



Fio. 25.— Cleantis 



IIEATHII. X 6§. 



