272 Soil then I Cross. 



Apstein transferred this species tentatively to the genus Vanadis 

 on account til" tlir presence of "a sliort Hliform cirrus" (Mclnt.) on 

 the parai)0(huni. Ihit one of the essential characters of Vanadis is 

 the possession of srtac rompdsifttc, while Trof. Mcintosh attributed 

 srtin- sliiipficrs to his Alciopc (niftnrfira whicli, if correct, would have 

 justified the constitution of a new genus. 



A true Vaiuvlh had already been recorded from the Southern 

 Seas, namely. J'. ///w/^Vom, Gnibe, 1877," taken between Kerguelen 

 and Australia. 



Ill the present speci(;s the buccal segment resembles that of 

 Vanadis formosa, figured by Apstein. It does not appear in dorsal 

 view, but seen from below it consists of two broad lobes, each 

 Itearing a stout tentacidar cirrus at its outer edge and meeting in the 

 middle line in a small triangular piece. Behind the bilobed buccal 

 segment follow two narrow segments, each with a pair of tenta- 

 cular cirri borne upon cirrophores. The foui'th segment bears a pair 

 of dorsal cirri with rounded tips and a rudimentary parapodium, but 

 no .setae. The fifth and sixth segments in the female bear large 

 si)herical dorsal cirri modified to form rcccptacula scminis. A small 

 mammilla on each receptaciilum rei)resents the apex of the modified 

 cirrus. In addition to these remarkable organs - the fifth and .sixth 

 segments likewise bear a small pluirctra sctarum, from which the 

 long slender setae project, and a small ventral cirrus. In Vanadis 

 formosa the receptacula are borne upon different segments (viz., 4th 

 and 5th), and there are no setae on these segments (Apstein). 



The occurrence of a pinnigcrous but apparently achaetous 

 segment, between the segments which carry the tentacular cirri and 

 those which bear the receptacula seminis, is a distinctive feature 

 of Vanadis antardica 9 . 



An incomplete female with 115 segments measured nearly 

 '.' inches in length. 



'J'hc anterior portion of the body, including the first eight or 

 nine setigerous segments, is slender, cylindrical, and porrect. The 

 .sexes are easily distinguished by the absence of the enlarged dorsal 

 cirri of the anterior setigerous segments in the male and their 

 pre.seuce in the female. Behind, and at the ba.se of the more 

 posterior para])odia, there are large black glands more prominent in 

 the male. The general colour in s])irit is translucent lirown, banded 

 ill the abdominal region. 



' riiaretra Hctiiniin in aiiijeiulicem bieveiu filifuriueni cxeuiitc ; setae compositae. 

 i;Orul>e, MoiiuUlnr. A/.: Jkrtin, 1»77, ]\ 524.) 



- Ori<;iiially (U'scrilK-d liv llcriiif:; in 1800; cf. Ilcrins, ' Zur Kenntniss der 

 Alcioi.icien vou Mc-hsina,' ,S.-Z/. Akml.' Wieii, Bd. 101, Abth.l, 18112. 



