62 



Stat. 194. Sept. 15. Lat. i°S3'.5S., long. 126° 39' E. Townet. 21 specimens. 



Stat. 194 — 197. Sept. 15. Lat. i°53'.5 — 1°45'.3 S., long. 126° 39' — I27°8'.3E. Plankton. 5 spe- 

 cimens. 



Stat. 203. Sept 19. Lat. 3°32'.5S., long. I24°I5'.5E. Hensen vertical net, from 1500 m. 

 to surface. 8 specimens. 



Stat. 206. Sept. 21. Buton-strait. Surface, i specimen. 



Stat. 216. Oct. 30. Lat. 6°49'S., long. i22°43'E. 2190 m. Fowler closing net, from 975 to 

 415 m. depth. 4 specimens. 



Stat. 220. Nov. 1—3. Anchorage off Pasir Pandjang, west coast of Binongka. 278 m. Townet. 

 5 specimens. 



Stat. 230. Nov. 14. Lat. 3°58'S., long. 128° 20' E. Hensen vertical net, from 2000 m. depth 

 to surface, i specimen. 



Stat. 245. Dec. 3. Lat. 4° 16'.$ S., long. 130° 15'. 8 E. Townet. 12 specimens. 



Near Stat. 300. Between Timor and Lomblen. Plankton. 3 specimens. 



Description. — Eye-stalks with eyes shorter in proportion to the body than in L. 

 intermedms and conspicuously less than half as long- as the distance between their insertion 

 and the labrum ; the stalks increase gradually and considerably in thickness from the base to 

 the eye. First antennular joint in the male reaches somewhat beyond the front margin of the 

 eyes (fig. 3«); in the females this joint is frequently proportionately still longer, and in such 

 cases it reaches very considerably beyond the eyes. In the male the two ventral processes on 

 si.xth abdominal segment (fig. },b) are shaped nearly as in L. intermedius, but the anterior 

 process is placed more backwards, consequently considerably more distant from the base of the 

 segment than from the second process. Exopod of uropods in the male (fig. 3^) about five 

 times as long as broad ; its terminal margin is slightly or rather considerably oblique (figs. 3 c 

 and 3^'), and the marginal process, which varies much in size, reaches always in the "Siboga" 

 specimens to or, generally, beyond^ the upper distal angle of the exopod (as to the Atlantic 

 specimens see "Remarks"). In the female the exopod is almost as narrow as in the male, but 

 the terminal margin is always rather oblique, and the marginal process which is long (fig. 3^) 

 or short, does not always reach so far backwards as the upper distal angle. 



The petasma (figs. 3_i^ — 3/) differs much from those in the preceding forms, but is rather 

 similar to that in L. Hanseni. Its terminal portion tapers gradually from the base to the acute 

 end; it is considerably curved, and a short part near the end is curved distinctly in the opposite 

 direction. Processus ventralis {J>v. in figs. 3// and 3/) is shaped nearly as a needle, tapering to the 

 very acute end. The protuberance (/. in figs. 3^ and 3/;) on the front margin of the pleopod 

 is as long as, or longer than, broad at the base, with some or several prickles on the end. 



Length of a male 11 mm., of a female 11.5 mm. 



Remarks. — L. Faxonii is in general aspect somewhat similar to L. intermedius, but 

 the males of both species differ generally distinctly from L. pcnicillifer in the shape of the 

 exopod of the uropods. Both sexes of L. Faxonii differ from the two species mentioned in the 

 length of the first antennular joint in proportion to the eyes, and this feature affords a fine 

 specific character. From Cruz Bay, St. Jan, West Indies, the Copenhagen Museum possesses a 

 large material; the males differ most frequently from the "Siboga" specimens in having the upper 

 distal angle of the exopod of the uropods reaching to or beyond the end of the marginal tooth, 

 but in a few specimens the tooth reaches beyond that margin as in most "Siboga" specimens. 



