278 THE SCHIZOPODA. 



are extremely thin. In the male antennulae the two distal peduncular joints 

 are somewhat shorter and much thicker than in the female; the upper flagellum 

 is slightly longer than the peduncle and conspicuously shorter than the lower; 

 both flagella distinctly thicker than in the female, but any expansion or flatten- 

 ing is not distinct, and the joints, probably eight, are difficult to count. — The 

 antennal squama is very long and narrow, 13-14 times as long as broad a little 

 behind the base of the marginal tooth ; in the female it scarcely reaches to the mid- 

 dle of third joint of the antennular peduncle, in the male scarcely to the end of the 

 same joint. — The false chelae of second pair of legs in the main as in S. affinc. 



Sixth abdoininal segment (fig. 3b) a little less than twice as long as deep, 

 with the lower margin curved moderately strongly upwards towards the end. — 

 The rami of the uropods nearly equal in length, reaching scarcely the end of 

 telson. 



Length of the males 5-5.5 mm., of the females 5-5.8 mm. 



Remarks. — It may be seen from the description that this species is very 

 closely allied to S. affine H. J. H. and S. longicorne G. O. S. But it is easily 

 distinguished from both by tlie eyes which, seen from the side, are slender, 

 extend very much beyond the upper end of the stalk and show only three crystal 

 cones in the transverse row. 



Distribution. — The type of Sars, preserved in the British Museum, is from 

 the Pacific, North of New Guinea. His specimen from "off Luzon, China Sea," 

 is damaged, but seems to belong to this species. Whether the specimen from 

 his third locality, "Samboangan to Ho-Ho, Philippines" in reality belonged to 

 this species cannot be decided, as it seems to be lost. I discard all other state- 

 ments in the literature before 1910 as uncertain, because several and perhaps 

 many among them belong to other species; it may only be stated here that the 

 Monaco material from the temperate North Atlantic comprises a number of 

 specimens. 



36. Stylocheiron affine H. J. Hansen. 



1910. Stylocheiron affinc H. J. Hansen, Siboga-Exp., 37, p. 118, pi. 16, figs. 4a-4d. 



Sta. 4609. Oct. 18,1904. Lat. 11° 05' N., long. 89°35' W. 300 fms. to surface. 1 specimen. 



Sta. 4613. Oct. 19, 1904. Lat. 9° 4.5' N., long. 86° 20' W. 300 fms. to surface. 2 specimens. 



Sta. 46.34. Nov. 4,1904. Lat. 4° 35.4' N., long. 83° 32.3' \V. 300 fms. to .surface. 16 specimens. 



Sta. 4637. Nov. 5,1904. Lat. 1° 31' N., long. 87° 32' W. 300 fms. to surface. 9 specimens. 



Sta. 4638. Nov. 6, 1904. Lat. 0° 27' N., long. 87° 13' W. 300 fms. to surface. 4 specimens. 



Sta. 4646. Nov. 8,1904. Lat. 4° 1.6' S., long. 89° 13.3' W. 300 fms. to surface. 3 specimens. 



Surface. 1 specimen. 



Sta. 4652. Nov. 11, 1904. Lat. 5° 44.7' S., long. 82° 39.5' W. 



100 fms. to surface. 2 specimens. 

 200 fms. to surface. 1 specimen. 

 400 fms. to surface. 1 specimen. 



