TYPH LOS CO LEG I DAE 



123 



these lobes are not quite symmetrical, for on the outer and anterior edge of the main stem 

 there are one or two small branches which are not represented on the opposite side of the 

 stem. If they were present they would be covered by the median tongue-shaped process. 



Behind the first three segments there are paired dorsal and ventral cirri in each seg- 

 ment. In the present specimens the cirri are either lost or too much damaged for 

 examination. Ehlers figures them as heart-shaped. The bristles begin at the sixth to 

 seventh segment. The foot consists of an aciculum surrounded by a cylindrical sheath, 

 beyond which the tip protrudes, and two or three simple bristles with curved ends. 

 At the end of the body there is a pair of long, more or less oval, transparent anal cirri 

 (Fig. 16 b) supported by a central hyaline process. 



Remarks. Both the hauls from which these specimens were taken were made below 

 the looo-m. line, and St. 395 yielded 11 specimens taken in a single haul at a depth 

 of between 1500 and 1600 m. Augener (1929, p. 309) conjectures that this species is 

 identical with S. corimta, Ehlers. I do not agree with this, for S. corniita has much 

 simpler nuchal organs. 



Genus Travisiopsis, Levinsen 



There are no vibratile cushions. Above the brain there is a pad flanked on either side 

 by the nuchal organs. 



Travisiopsis benhami, n.sp. (Fig. 17 a-c). 



Sagitella kowalewskii, Gravier, 191 1, p. 74, pi. iii, figs. 30-32. 



Ehlers, 1913, p. 526, pi. xxxix, fig. 15. 



Benham, 1927, p. 80, pi. ii, figs. 33-34. 



Monro, 1930, p. 89. 



Nee Sagitella kowalewskii, Wagner. 



Occurrence. St. 151 (i); 575 (i); 588 (i); WS 351 (i); WS 549 (i); WS 555 (2). 



25 MM 



Fig. 17. Travisiopsis benhami. 

 a. Head from above. b. Cirrus. 



c. Sieve-cell. 



Specific characters. Up to about 25 mm. in length for 25 cirrigerous segments. 

 The head (Fig. 17 «) is conical and ends in a small palpode. It is followed by three short 

 segments each bearing a single pair of foliaceous cirri. The remaining segments carry 

 paired dorsal and ventral cirri. Above the cerebral ganglia there is a transversely 



