20I 



both longer than the telson, the outer lobe of the peduncle is rounded, but the inner ends in 

 a small acute spine; the outer margin of the external uropod, slightly convex anteriorh', slight!)' 

 concave posteriorly, ends in a small spine; the diaeresis is armed with two triangular 

 acute teeth of equal size one at the outer, one at the inner side, that are just as long 

 as broad at their base, projecting forward, though not reaching to the middle of the terminal 

 lobe of the uropod. 



The terminal segment of the ocular peduncle is hardly longer than wide, the distinctly, 

 though finely, faceted corneal surface occupies half the length of the segment, while the proximal 

 half is slightly flattened; ocellus absent, but the dark blue iiigment of the eye extends a little 

 on the outer side of the peduncle. 



First segment of antennular peduncle a little longer than the two following taken together, 

 2"^^ one and a half as long as thick and just as long as 3"'; stylocerite short, shorter than the 

 eyes, obliquely truncate at the tip. 



Second joint of antennal peduncle with a small subacute tubercle (no spine) on the lower 

 side, peduncle and scaphocerite (Fig. 5 1/) agree with B.vkek's description and figures. The external 

 maxillipeds hardly extend beyond the thicker upper antennular flagellum, but the antepenultimate 

 joint not yet, though almost, attains the distal extremity of the scaphocerite; in Baker's figure 2, 

 however, this joint reaches distinctly beyond the antennal scale, but in the ova-bearing female 

 from Stat. 89 the scaphocerite appears also a little shorter than the antepenultimate joint; 

 the two last joints are subequal in length and together a little shorter than the antepenultimate, 

 the proportion being like 28 : 33. 



Merus of the chelate leg- (Fig. 5i_^) of the i*^' pair 3-times as long as broad in the middle, 

 almost 3-times as long as the carpus, which has a stout shape, the proportion between length and 

 width being like 4:3; palm one-fifth longer than carpus, fingers as long as the palm. Merus 

 of the left simple leg (Fig. 51//) of the i^' pair little longer than that of the chelate and 4-times 

 as long as wide ; length of the carpus one-third that of the merus, carpus of a less stout shape 

 than in the chelate leg, the proportion between length and width being like 5:3; propodus 

 twice as long as the carpus, 3Yo-times as long as broad, dactylus one-third of propodus. 



The right leg of the 2"'^ pair reaches by the chela and the two last joints of the carpus 

 beyond the external maxillipeds, the left leg extends to the distal third of the ultimate joint. 

 The suture on the ischium of the right leg, that Baker describes, is situated a little behind 

 the middle, the expansion on the proximal part is tipped with 4 recurved setae; the merus is 

 2,06 mm. long, a little longer than the ischium, the 5 — 7 annuli are hardly perceptible, the carpus, 

 3,6 mm., is one and three-fourth times as long as the merus (Fig. 512) and divided into 19 

 or 20 joints, of which the r' is 27,-times as long as thick distally, those in the middle a little 

 broader than long, the last a little longer than broad ; the chela measures 7s of the carpus, is 

 a little more than twice as long as wide and the gaping fingers are slightly shorter than the 

 palm. The expansion on the ischium of the slightly shorter left leg bears only 3 recurved setae 

 and the suture lies also behind the middle; the merus is 1,7 mm. long, its segments are still 

 more obscure than in the right leg; the carpus, 2,67 mm., is about one and a half as long 

 as the merus (Fig. 517) and divided into 12 segments that resemble those of the other leg; the 



SIBOGA-EXI'EDITIK XXXlXa'. ^° 



