337 



of the anterior somites ochraceous; rostrum, antennae and legs testaceous. 



Head about as long as the rostrum; rostrum long, slender, lightly 

 curved and pointed ; antennae about as long as the head and rostrum 

 taken together, the 2 nd , 3 rd , 4* and 5 th - segments subequal in length. 



Legs short, with the segments not manifestly unequal in length. 



Number of segments 44 — 63. 



Length of largest specimen about 15 mm. width about 1 mm. 



34. Siphonophora vittata sp. n. PL XX, fig. 4 — 4«. 



Flores: Maumerie. A large number of specimens. 



Colour entirely yellowish white, with a fine median dorsal fus- 

 cous band. 



Head about as long as the rostrum, which is long curved and 

 pointed at the end; antennae about as long as the head and rostrum 

 taken together, the 2 nd , 3 rd , 4 th and b^ segments gradually increas- 

 ing in length and width. 



Number of segments 50—80. 



Length of largest specimen 22 mm.; width 1.2. 



This species does not seem to differ from the preceding in any im- 

 portant particulars except colour. 



Family polyzonidae. 



Gervais. Ann. Sei. Nat. (3), Zool. II, p. 70 (1844). 



Head triangular pointed below. 



Eyes present , consisting of one or more ocelli , situated obliquely on 

 the inner side of the articulation of the antennae. 



Antennae large, the segments subequal in size. 



Mandibles reduced but not entirely obsolete (? always). 



Gnathochilarium showing traces at its distal end of separate pieces. 

 (? always). 



Segments smooth; pleurae united with the terga, though the line 

 of union is often obvious. 



First segment smaller than the 2 nd and not closely embracing the 

 sides of the head. 



Sub-family Polyzonini. 



Body long and narrow or robust. 



The line of union between the pleurae and the terga clearly repre- 



