238 University of California Publications in Zoology. TTol. 4 



plane, bearing a small tooth near the apex; dactyl simple, nearly 

 two-thirds as long as the propodns. 



Fonrth peraeopod (pi. 12, fig. 33) with the basal joint stont, 

 as long as the three succeeding segments united, nearly three- 

 fourths as broad as long, armed with a few long setae; ischium ir- 

 regularly sub-quadrate, bearing long setae on its front margin ; 

 merus about twice as long as the ischium ; apex a little widened, 

 slightly concaved, setae on each margin; carpus exceeding the 

 length of the ischium, pear shaped, bearing a tuft of setae at the 

 apex of the outer margin, and two oblique rows of curved teeth, 

 two long teeth at the apex of the hind margin ; propodus not quite 

 as long as the merus, arced, scarcely four times as long as broad, 

 bearing two or three setae and a small tooth near the apex; 

 dactyl simple, a little over half the length of the propodus. 



Fifth peraeopod (pi. 12, fig. 34) more than twice the length 

 of the third, slender ; the basal joint stout, as long as the succeed- 

 ing two segments united, and two-thirds as broad as long, fringed 

 on both margins with setae from one-half to three-fourths as long 

 as the segment; ischium slightly longer than broad; merus nearly 

 three times as long as the ischium, about one-third as broad as 

 long, not wddened at apex, both margins of this and the next 

 segment armed with sparse setae ; carpus oblong, more than twice 

 as long as the ischium and over three times as long as broad; the 

 base slightly less than the width of the apex of the merus; pro- 

 podus one-fourth longer than the merus, slightly bent at base, 

 nearly eight times as long as broad, unarmed except for two small 

 teeth at apex behind and a tuft of bristles at apex in front ; dactyJ 

 simple, nearly one-half as long as the propodus. 



First uropods (pi. 12, fig. 35) extending scarcely beyond the 

 others; rami two-thirds of the length of the peduncle, the latter 

 unarmed ; outer ramus with four terminal spines and four spines 

 on the outer margin ; inner ramus bearing three terminal spines 

 and four on the inner margin. Peduncle of second uropods not 

 much longer than broad, widened at apex, slightly shorter than 

 its inner ramus; this stout, bearing two or three indistinct ter- 

 minal spines, and two spines on the inner margin ; outer ramus 

 smaller, unarmed except for three terminal spines. Peduncle of 

 the third uropod broader than long, bearing a few setae on each 



