ii8 



terminal margin. The proximal process about as long, but not quite as broad at the base, 

 as the terminal, a little sinuate, with the distal half of the inner margin somewhat convex, of 

 the outer feebly concave, while the end at the outer side is produced into a small, oblong 

 process. The lateral process originates near the proximal and is slightly shorter and somewhat 

 narrower, being narrower at the middle than towards both ends, at the distal end broadly 

 rounded on the inner side, while the terminal outer corner is nearly rectangular. 



Length of the male 5.5 mm., of the female 6.4 mm. 



Remarks. — This small species is easily separated from the other forms of the 

 lotigicorne-grou\) by its small eyes with only two facets on the upper end. The relative length 

 of the distal peduncular joints in the female antennulse, of the antennal squama in both sexes 

 and the shape of sixth abdominal segment show other differences of specific value. 



Distribution. — Specimens from the Pacific are to hand, while the species seems 

 to be wanting in the Atlantic. 



22. Sty loc he iron affinc n. sp. PI. XVI, figs. \a — A^d. 



Stat. 66. May 7/8. Bank between islands of Bahuluvvang and Tambolungan, South of Saleyer. 



8 — 10 m. Plankton. 31 specimens, most of them immature. 

 Stat. 118. July 13. Lat. i°38'N., long. 124° 28'. 2 E. Hensen vertical net, from 900 m. to 



surface, i specimen. 

 Stat. 129. July 22/23. Anchorage oft'Kawio- and Kamboling-islands, Karkaralong-group. 23 — 31 m. 



Townet. 3 specimens. 

 Stat. 141. August 5. Lat. i°o'.4S., long. I27°25'.3E. 1950 m. Hensen vertical net, from 



1 500 m. to surface. 8 specimens. 

 Stat. 143. August 7. Lat. i°4'.5 S., long. I27°52'.6E. 1454 m. Hensen vertical net, from 



1000 m. to surface. 4 specimens. 

 Stat. 148. August 10. Lat. o°i7'.6S., long. 129° 14'. 5 E. 1S55 m. Hensen vertical net, from 



1000 m. to surface. 6 specimens. 

 Stat. 157. August 15/16. Lat. o°32'.9 S., long. 130° 14'. 6 E. 45 m. Townet. i immature 



specimen. 

 Stat. 185. September 12. Lat. 3° 20' S., long. I27°22'.9E. HENSEN vertical net, from 1536 m. 



to surface. 12 specimens. 

 Stat. 203. September 19. Lat. 3°32'.5 S., long. 124° 15'. 5 E. Hensen vertical net, from 1500m. 



to surface. 35 specimens. 

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



Townet. 29 specimens, most of them immature. 

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



to surface. 19 specimens. 



Description. — Frontal plate rather long, in the adult females always terminating 

 in a long or very long, distally very slender rostrum, while the rostrum is short or very short 

 in the adult males. The dorsal keel on the gastric area moderately high, anteriorly very sloping. 

 The eyes are conspicuously lower than in 5". hiigicorne, less than twice as high as broad, 

 somewhat pyriform, with the lower section from more than half as broad again to more than 

 twice as broad as the upper part, in which, seen from the side, 4 or 5, rarely 6, crystal cones 

 are plainly observ^ed; the lower, broad section is dark brown. The antennulse in the female 

 nearly as in 5. longicorne, but scarcely as long ; the peduncle at least as long as the carapace, 



