ISOPUDS OF NOETH AMERICA. 



471 



JANIRA MINUTA Richardson. 



Janira mimda KiriiAKnso.v, Trans, ("(inn. .Vcad. Sciences, XI, 1902, p. 297, pi. 

 xxxix, figs. 50 52. 



Locality. — Cu.stle Harbor, Hermiulas, in dead coral. 



Surface of body smooth. Color lioht yellow, almost white, spotted 

 with black. 



Head with frontal margin straight; eyes large, conspicuous, oblong, 

 and situated at the lateral margin. First pair of antenntv with the 

 three peduncular articles eijual in lengtii, the first one, however, being 

 very much the broadest, tlu^ second a little stouter than the third; 

 flagellum multi-articulate, composed of about ten or eleven articles. 

 The second pair of antennie have a scale outside the third article of 

 the peduncle; liagellum nuUti-articulate, much longer than the body. 

 Thoracic segments subequal in length. First segment with the lateral 



Fig. 525. — ^Janira minuta. a, Leg ok first pair of female, x 58. h, Termi.nal segment and 

 UKOPODA. X 58. (■, Leg of first pair of male, x -58. 



margin entire, epimeron not evident from a dorsal view. Second and 

 third segments with margins entire, straight, epimera evident about 

 the middle of the segments. Fourth segment with the posterior half 

 of the lateral margin slightly excavate, the epimeron evident in the 

 excavation. The last three segments with the lateral margins entire, 

 the epimera evident as small lobes at the post-lateral angles. 



The terminal segment is about as broad as long, rounded posteriorly 

 with a median lobe between the peduncular joints of the uropoda. 

 The uropoda extend much beyond the terminal segment, being longer 

 than that segment. The outer branch is somewhat shorter than the 

 inner branch; both branches are longer than the peduncle, and are 

 fringed with long hairs. 



In the female the first pair of legs are prehensile; the others are 

 simple walking legs, Avith bi-unguiculate dactyli. In the male, how- 

 ever, the first pair of legs are modified, though prehensile. The 



