48 
THE YOYAGE OF H.M.S. CHALLENGER. 
long. 35° 50' W.; depth, 1675 fathoms ; surface temperature, 70°‘0; Globigerina ooze. 
Station 133 (near Tristan da Cunha, in the middle of the South Atlantic), October 11, 
1873; lat. 35° 41' S., long. 20° 55' W.; depth, 1900 fathoms ; bottom temperature 
35°*4, surface temperature 58°’0 ; Globigerina ooze. Station 146 (to the east of 
Prince Edward Island), December 29, 1873; lat. 46° 46' S., long. 45° 31' E. ; 
depth, 1375 fathoms; bottom temperature 35°‘6, surface temperature 43°'0 .; Globi- 
gerina ooze. Station 169 (off the north-east point of the northern island of New 
Zealand), July 10, 1874; lat. 37° 34' S., long. 179° 22' E. ; depth, 700 fathoms; 
bottom temperature 40°'0, surface temperature 58°‘2 ; Globigerina ooze. Station 184 
(off the north-eastern shores of Australia), August 29, 1874 ; lat. 12° 8' S., long. 
145° 10' E.-; depth, 1400 fathoms; bottom temperature 36°‘0, surface temperature 
77°'5 ; Globigerina ooze. 
This species closely approaches Loetmonice proclucta, var. henthaliana in external 
appearance, except that minute brownish papillae on the scales render the dorsum some- 
what dusky, and that the palpi are much longer. The number of segments is about 
thirty-five; the length of one of the larger examples is 33 mm., and the breadth (exclusive 
of bristles) 13 mm. 
The head differs from the preceding in having large ocular peduncles, which are quite 
globular. The distinction is evident when two specimens of equal size are placed 
together. The ocular peduncles, indeed, are so large that the median tentacle is thrusc 
backward, whereas in the former it lies between the peduncles. In the north Australian 
example the ocular peduncles are somewhat smaller and more distinctly separated from 
the tentacle. The peduncles in all are devoid of pigment. The median tentacle and all 
the cirri are decidedly longer. The palpi also exceed very considerably those of Lcetmonice 
producta, var. henthcdiana in length, show both a dorsal and a ventral ridge in the pre- 
paration, and have their surface covered with cuticular papillse. There is no visible 
papilla behind the ocular peduncles. The palpi have a similar (triangular) papillose mass 
between their bases, and the oral margins of the ventral eminence are papillose. Small 
papillae occur on the cuticle of the ventral surface. 
The extruded proboscis extends outwards nearly three fourths the length of the 
animal. It is terminated dorsally and ventrally by a densely papillose fringe, and the 
inner surface is produced above and below into firm almost cartilage-like protuberances. 
The villous condition is due to an immense number of paj)illae arising from isolated 
processes. The papillae are simple, bifid, or multifid structures, and show at least two 
rows of cells. The basal region of the papillae is peculiarly wrinkled. 
The scales are fifteen pairs, and differ from those of Lcetmonice producta, vai:. henthaliana, 
in showing a few minute brownish papillae on the dorsal surface. The latter are absent 
in one example, viz., that from Station 70. 
