74 



DISCOVERY REPORTS 



than behind, running down the middle of the back. The cordiform head with its median 

 papilla has been figured by Ehlers: the eyes in my specimen are so much faded as to 

 be only just indicated. This may have been caused by the fact that the specimen was 

 removed in a dry condition from a faulty bottle. 



The formula for the tentacular segments is as follows: i + B — [- B — ^. 



The first tentacular segment is incomplete dorsally, and its cirrus and the thickened 

 ventral cirrus of the second segment are c 

 both less than half the length of the other 

 two tentacular cirri. The dorsal tentacular 

 cirrus of the second segment reaches back 

 to the 1 2th segment. 



The foot (Fig. 21), with its small digiti- 

 form appendage at the end of the chaeta 

 sac and the pointed end of the ventral 

 cirrus, has been figured by Bergstrom and 

 by Ehlers, but both these authors have 

 overlooked one important fact. When the 

 foot has been cleared, a ver^' slender acicu- 

 lum can be seen running up the dorsal 

 cirrophore as in Aiistrophylliim and Noto- 

 phyllum. The proboscis is unfortunately 

 not everted. 



O 



Fig. 21. PhvUodoce longipes. Middle foot. 



Remarks. This species has a foot very like that of Notophylliim foliosiim as far as 

 the dorsal ramus goes, but the head with its occipital papilla and no median tentacle 

 is that of a PhvUodoce. 



For uniformity's sake, I should make this species the type species of a new genus, 

 but I suspect that, as our knowledge of this family increases, it will be found that a 

 number of species on close investigation show vestiges of a biramous condition of the 

 foot. I therefore retain its original name in spite of the fact that by generic definition 

 Phyllodoce has uniramous feet. 



This species seems to be very like Phyllodoce macropopillosa, St Joseph, from 

 European waters (v. Fage et Legendre, 1927, p. 53, fig. 6), but no dorsal aciculum has 

 been described for St Joseph's species. 



Genus Austrophyllum, Bergstrom 



Austrophyllum charcoti (Gravier). 



Bergstrom, 1914, p. 119, text-fig. 30, with synonymy. 



St. 45. 6. iv; 26. 27 miles S 85° E of Jason Light, South Georgia. 238-270 m. Gear OIL. 

 Bottom: grey mud. Three specimens. 



St. 160. 7.11.27. Near Shag Rocks. 53" 43' 40" S, 40° 57' 00" W. 177 m. Gear DLH. Bottom: 

 grey mud, stones and rock. One specimen. 



