36 DISCOVERY REPORTS 



tufts exactly as figured by Johnson {loc. cit. Fig. 5). The upper of the two dorsal cirri 

 are on the inside of the rows of gills, and the lower between the and and 3rd most dorsal 

 trunks. The ventral cirri lie behind the ventral bristle-bundles. 



The dorsal bristles are of two and perhaps of three kinds : (i) ringent chaetae (Figs. 4, b 

 and 4, c) which vary in the extent to which the long arm is flexed; (2) smooth stout 

 bifid bristles (Fig. 4, d) ; (3) a few bristles intermediate in type between the " ringents " 

 and the smooth "bifids" (Fig. 4, e): in these there are striae in the fork, and the small 

 arm is relatively shorter than in the ringents. In the majority of examples but not in 

 all, the long arm of the " ringent " and the " intermediate " chaetae is delicately serrated 

 to just below the tip. These serrations vary widely in their distinctness in the different 

 specimens, and in a few they cannot be seen. This may be a function of the state of 

 preservation of the bristles. 



The ventral chaetae are simple bifids of two sizes exactly as figured by Johnson. 

 The anus is large and ventrally placed. 



Remarks. These Antarctic specimens agree in detail with Johnson's description of an 

 example from 100 fathoms depth in Monterey Bay, California, except that Johnson 

 figures no serrations on the long arm of the ringent chaetae ; these may have been absent, 

 as they are in several of the Antarctic specimens. Moreover, he makes no mention of 

 the " intermediate " type of chaetae : they are not clearly separable from the " ringents," 

 and might easily be overlooked. 



I am unable to decide whether this species, to which I believe the Antarctic specimens 

 to belong in spite of the wide difli^erences in locality and habitat between them and 

 Johnson's type, is the same as E. armadilloides, Ehlers, which has a wide Antarctic 

 distribution. Ehlers is of the opinion that his species is close to both E. arctia, Johnson 

 and E. armadillo, M. Sars. Now Ehlers' E. armadilloides has broad foliaceous tips to 

 its branchiae and a secondary tooth to the long arm of the bifid chaetae : I cannot quite 

 reconcile the curious tufted gill-ends described by Johnson with those of E. arma- 

 dilloides. M. Sars describes E. armadillo as having branchiae "apicibus ramulorum 

 conico-acuminatis." This conveys a diff"erent type of branchia from that figured by 

 Ehlers for E. armadilloides, and the E. armadillo, M. Sars of Mcintosh (1900, PI. xxv, 

 fig. 2) and of Fauvel (1923, fig. 49, O) has long finger-shaped branchial extremities. 

 As far as the branchiae go, E. armadilloides is nearer to E.foliosa than to E. armadillo. 



Moore (1908, p. 340) hesitatingly attributes a specimen from Behm Canal, Alaska, 

 to Johnson's species. 



Family APHRODITIDAE 



Genus Aphrodite, Linnaeus 

 Aphrodite alta, Kinberg. 



Kinberg, 1857, p. 2, pi. i, fig. i, a-g. 



St. 181. 12. iii. 27. Schollaert Channel, Palmer Archipelago. 64° 20' 00" S, 63° 01' 00" W. 

 160-33501. Gear OTL. Bottom: mud. One specimen. 



