123 



Stat. 141. August 5. Lat. i°o'.4S., long. i27°25'.3E. 1950 m. HENSEN vertical net, from 



1500 m. to surface. 15 specimens (1 specimen more than half-grown, the others 



very small). 

 Stat. 14S. August 10. Lat. O 17.6S., long. I29°I4.5E. 1855 m. HENSEN vertical net, from 



1000 m. to surface. 2 young specimens. 

 Stat. 203. September 19. Lat. 3°32'-5 S., long. i24°i$'.5 E. HENSEN vertical net, from 1500111. 



to surface. 7 young specimens. 

 Stat. 220. November 1/3. Anchorage off Pasir Pandjang, West coast of Binongka. 278 m. 



Townet. 2 very young specimens. 

 Stat. 276. January 9. Lat. 6° 47'. 5 S., long. i28°4o'.5 E. HENSEN vertical net, from 750 m. 



to surface. 1 very young specimen. 



Remarks. — The essential differences between this species and S. maximum H. J. H. 

 were mentioned above. Sars described and figured young specimens, measuring 8 mm., only 

 about half the length of the adults; Chun examined larger specimens measuring 12 — 14 mm. 

 and gave a large figure of the female measuring 12 — 14 mm., but his figure and description 

 of the copulatory organs show that his male specimen was not quite adult. His figure of the 

 female conveys a good idea of the species, but it may be noted that a dorsal tooth similar to 

 that indicated by him on the fifth abdominal segment ought to have been added on the fourth 

 segment. The list above shows that the "Siboga" captured only rather young and very young 

 specimens; for this reason a more detailed account with analytical figures is not given here. 



Distri but i on. — Most of the localities enumerated in the literature are of no value, 

 because the authors did not perceive that it is necessary to separate 5. maximum from the 

 present species. I have seen specimens of S. abbreviatum both from the Atlantic (the Monaco 

 collection) and the Pacific. 



