48 



PROCEEDIXGS OF THE NA TIONA L MUSEUM. 



VOL. XXVI, 



or 6 .spimiles on each side. The tel.son iimy be a little longer or shorter 

 than the inner uropods; the outer iiropods longer than the inner. 



Dhuen.sJoiix. — Female, length 127 mm., length of carapace and 

 rostrmu OCT) mm., hnigth of rostrum 34.5 mm. 



Localltie.^. — Mororan, Hokkaido; Jordan and Snyder; 18 specimens, 

 males and females, types (Cat. No. 261(50). Two specimens were col- 

 lected previously at the same place by N. Grebnitzki. Tokyo, 1 

 young; flordan and Snyder. 



In four instances the acicle on one side is a little longer than thaton 

 the other, though l)oth are regular in shape. 



PANDALOPSIS MITSUKURII, new species. 



Slender. Carapace as long as the abdomen, lacking half the telson. 

 Rostrum one and two-thirds times as long as the rest of the carapace, 



Fig. 22. — PANDALcirsis mitsikckii, ( auapace, side view, :■; 13. 



basal half horizontal, terminal half slightly ascending, slender. Dorsal 

 carina blunt, armed with 8 to 10 movable spines, of which 2 or 3 arc 

 behind the orljit, the posterior spine at- the anterior hfth of the carj.- 

 pace, and marking the end of the carina; anterior spine but little in 

 front of the posterior third of the rostrum; ventral spines 13 to is. 

 becoming distally very small and appressed; tip of rostrum tritid. 

 Antennal spine strong, the margin of the carapace retreating rapidly 



from that point; pterygos- 

 tomian spine two-thirds 

 as large. Eyes small, 

 cornete little dilated, of a 

 dark bluish-gra}' color in 

 alcohol, a small black ocel- 

 lus })ehind the corneal 

 margin and on the upper 

 outer surface. 



The peduncle of the an- 

 tennules reaches about two-iifths the length of the antennal scale; 

 second segment nearly twice as long as third; basal scale small, reach- 

 ing only to middle of cornea; inner flagellum a little longer than outer 

 and barely attaining the end of the rostrum. Peduncle of antenn;v 

 Teaching to the middle of second antennular segment; the flagellum 

 may equal the length of the body, excluding the telson. The scale 

 extends to al)Out the distal third of the rostrum, oblong, very little 

 tapering, extremity of blade oblique, projecting beyond the spine. 



Fig. 23.- 



-PANDALUP.SIS MITSUKURII, CARAPACE AND ANTENN.*:, 

 nORSAIj VIEW, X IJ. 



